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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Successful build of SwiftAA, reference master (e5ed4a), with Swift 6.0 for macOS (SPM) on 2 Nov 2024 22:10:14 UTC.

Swift 6 data race errors: 15

Build Command

env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.56.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/onekiloparsec/SwiftAA.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/onekiloparsec/SwiftAA
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at e5ed4a8 Update README.md
Cloned https://github.com/onekiloparsec/SwiftAA.git
Revision (git rev-parse @):
e5ed4a860d7c8be498ce4583c9f5d772a7cdaa79
SUCCESS checkout https://github.com/onekiloparsec/SwiftAA.git at master
========================================
ResolveProductDependencies
========================================
Resolving dependencies ...
{
  "identity": ".resolve-product-dependencies",
  "name": "resolve-dependencies",
  "url": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "version": "unspecified",
  "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies",
  "dependencies": [
    {
      "identity": "swiftaa",
      "name": "SwiftAA",
      "url": "https://github.com/onekiloparsec/SwiftAA.git",
      "version": "unspecified",
      "path": "/Users/admin/builder/spi-builder-workspace/.resolve-product-dependencies/.build/checkouts/SwiftAA",
      "dependencies": [
      ]
    }
  ]
}
Fetching https://github.com/onekiloparsec/SwiftAA.git
[1/8972] Fetching swiftaa
Fetched https://github.com/onekiloparsec/SwiftAA.git from cache (2.64s)
Creating working copy for https://github.com/onekiloparsec/SwiftAA.git
Working copy of https://github.com/onekiloparsec/SwiftAA.git resolved at master (e5ed4a8)
warning: '.resolve-product-dependencies': dependency 'swiftaa' is not used by any target
Found 0 product dependencies
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $PWD
https://github.com/onekiloparsec/SwiftAA.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.1.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/176] Compiling AABridge KPCAADiameters.cpp
[1/176] Compiling AABridge KPCAADate.cpp
[1/176] Compiling AABridge KPCAAElementsPlanetaryOrbit.cpp
[1/176] Compiling AABridge KPCAAEclipses.cpp
[1/176] Write sources
[1/176] Compiling AABridge KPCAAEarth.cpp
[5/176] Compiling AABridge KPCAAEclipticalElements.cpp
[6/176] Compiling AABridge KPCAABinaryStar.cpp
[6/176] Compiling AABridge KPCAAElliptical.cpp
[6/176] Compiling AABridge KPCAADynamicalTime.cpp
[10/176] Compiling AAplus stdafx.cpp
[11/176] Write swift-version--7754E27361AE5C74.txt
[12/176] Compiling AAplus AAVSOP87_EMB.cpp
[13/176] Compiling AAplus AAVenus.cpp
[14/176] Compiling AAplus AAVSOP87_MAR.cpp
[14/176] Compiling AAplus AAVSOP87_VEN.cpp
[15/176] Compiling AAplus AAVSOP87_MER.cpp
[17/176] Compiling AAplus AAVSOP87_URA.cpp
[17/176] Compiling AAplus AAVSOP87_JUP.cpp
[18/176] Compiling AAplus AAVSOP87_NEP.cpp
[19/176] Compiling AAplus AAVSOP87_SAT.cpp
[21/176] Compiling AAplus AAEquinoxesAndSolstices2.cpp
[22/176] Compiling AAplus AAVSOP87E_NEP.cpp
[23/176] Compiling AAplus AAVSOP87E_VEN.cpp
[24/176] Compiling AAplus AAVSOP87D_VEN.cpp
[25/176] Compiling AAplus AAVSOP87E_JUP.cpp
[26/176] Compiling AAplus AAVSOP87E_URA.cpp
[27/176] Compiling AAplus AAVSOP87E_EAR.cpp
[28/176] Compiling AAplus AAVSOP87E_MAR.cpp
[29/176] Compiling AAplus AAVSOP87E_SUN.cpp
[30/176] Compiling AAplus AAVSOP87E_MER.cpp
[31/176] Compiling AAplus AAVSOP87E_SAT.cpp
[32/176] Compiling AAplus AAVSOP87D_EAR.cpp
[33/176] Compiling AAplus AAVSOP87D_NEP.cpp
[34/176] Compiling AAplus AAVSOP87D_URA.cpp
[35/176] Compiling AAplus AAVSOP87D_SAT.cpp
[36/176] Compiling AAplus AAVSOP87D_JUP.cpp
[37/176] Compiling AAplus AAVSOP87C_VEN.cpp
[38/176] Compiling AAplus AAVSOP87D_MAR.cpp
[39/176] Compiling AAplus AAVSOP87D_MER.cpp
[40/176] Compiling AAplus AAVSOP87C_SAT.cpp
[40/176] Compiling AAplus AAVSOP87C_URA.cpp
[42/176] Compiling AAplus AAVSOP87C_NEP.cpp
[43/176] Compiling AAplus AAVSOP87B_VEN.cpp
[44/176] Compiling AAplus AAVSOP87C_EAR.cpp
[45/176] Compiling AAplus AAVSOP87C_JUP.cpp
[46/176] Compiling AAplus AAVSOP87B_URA.cpp
[47/176] Compiling AAplus AAVSOP87C_MER.cpp
[48/176] Compiling AAplus AAVSOP87C_MAR.cpp
[49/176] Compiling AAplus AAVSOP87B_NEP.cpp
[50/176] Compiling AAplus AAVSOP87B_SAT.cpp
[51/176] Compiling AAplus AAVSOP87B_MER.cpp
[52/176] Compiling AAplus AAVSOP87B_MAR.cpp
[53/176] Compiling AAplus AAVSOP87B_JUP.cpp
[54/176] Compiling AAplus AAVSOP87B_EAR.cpp
[55/176] Compiling AAplus AAVSOP87A_NEP.cpp
[56/176] Compiling AAplus AAVSOP87A_VEN.cpp
[57/176] Compiling AAplus AAVSOP87A_URA.cpp
[58/176] Compiling AAplus AAVSOP87A_MAR.cpp
[59/176] Compiling AAplus AAVSOP87A_SAT.cpp
[60/176] Compiling AAplus AAVSOP87A_MER.cpp
[61/176] Compiling AAplus AAVSOP87A_JUP.cpp
[62/176] Compiling AAplus AAVSOP87.cpp
[63/176] Compiling AAplus AAStellarMagnitudes.cpp
[64/176] Compiling AAplus AASun.cpp
[65/176] Compiling AAplus AASidereal.cpp
[66/176] Compiling AAplus AASaturnRings.cpp
[67/176] Compiling AAplus AASaturnMoons.cpp
[68/176] Compiling AAplus AARiseTransitSet.cpp
[69/176] Compiling AAplus AARefraction.cpp
[70/176] Compiling AAplus AAPrecession.cpp
[71/176] Compiling AAplus AAVSOP87A_EMB.cpp
[72/176] Compiling AAplus AAVSOP87A_EAR.cpp
[73/176] Compiling AAplus AAUranus.cpp
[74/176] Compiling AAplus AAPlanetPerihelionAphelion.cpp
[75/176] Compiling AAplus AAPhysicalSun.cpp
[76/176] Compiling AAplus AASaturn.cpp
[77/176] Compiling AAplus AAPhysicalMars.cpp
[78/176] Compiling AAplus AAPhysicalMoon.cpp
[79/176] Compiling AAplus AAPhysicalJupiter.cpp
[80/176] Compiling AAplus AAPluto.cpp
[81/176] Compiling AAplus AAParallactic.cpp
[82/176] Compiling AAplus AAParallax.cpp
[83/176] Compiling AAplus AAParabolic.cpp
[84/176] Compiling AAplus AANodes.cpp
[85/176] Compiling AAplus AAPlanetaryPhenomena.cpp
[86/176] Compiling AAplus AAMoslemCalendar.cpp
[87/176] Compiling AAplus AANearParabolic.cpp
[88/176] Compiling AAplus AARiseTransitSet2.cpp
[89/176] Compiling AAplus AAMoonPhases.cpp
[90/176] Compiling AAplus AAPlanetPerihelionAphelion2.cpp
[91/176] Compiling AAplus AAPlanetaryPhenomena2.cpp
[92/176] Compiling AAplus AAMoonNodes.cpp
[93/176] Compiling AAplus AANutation.cpp
[94/176] Compiling AAplus AANeptune.cpp
[95/176] Compiling AAplus AAMoonIlluminatedFraction.cpp
[96/176] Compiling AAplus AAMoonMaxDeclinations.cpp
[97/176] Compiling AAplus AAMoonPerigeeApogee.cpp
[98/176] Compiling AAplus AAKepler.cpp
[99/176] Compiling AAplus AAJewishCalendar.cpp
[100/176] Compiling AAplus AAInterpolate.cpp
[101/176] Compiling AAplus AAMoonPhases2.cpp
[102/176] Compiling AAplus AAMoon.cpp
[103/176] Compiling AAplus AAMoonPerigeeApogee2.cpp
[104/176] Compiling AAplus AAMercury.cpp
[105/176] Compiling AAplus AAMoonNodes2.cpp
[106/176] Compiling AAplus AAIlluminatedFraction.cpp
[107/176] Compiling AAplus AAMars.cpp
[108/176] Compiling AAplus AAGlobe.cpp
[109/176] Compiling AAplus AAFK5.cpp
[110/176] Compiling AAplus AAJupiter.cpp
[111/176] Compiling AAplus AAGalileanMoons.cpp
[112/176] Compiling AAplus AAEquinoxesAndSolstices.cpp
[113/176] Compiling AAplus AAMoonMaxDeclinations2.cpp
[114/176] Compiling AAplus AAEquationOfTime.cpp
[115/176] Compiling AAplus AAEclipticalElements.cpp
[116/176] Compiling AAplus AAElementsPlanetaryOrbit.cpp
[117/176] Compiling AAplus AAElliptical.cpp
[118/176] Compiling AAplus AAEclipses.cpp
[119/176] Compiling AAplus AADiameters.cpp
[120/176] Compiling AAplus AAAngularSeparation.cpp
[121/176] Compiling AAplus AABinaryStar.cpp
[122/176] Compiling AAplus AACoordinateTransformation.cpp
[123/176] Compiling AABridge KPCAAVenus.cpp
[124/176] Compiling AABridge KPCAAUranus.cpp
[125/176] Compiling AABridge KPCAASun.cpp
[126/176] Compiling AABridge KPCAAStellarMagnitudes.cpp
[127/176] Compiling AABridge KPCAASidereal.cpp
[128/176] Compiling AABridge KPCAASaturnRings.cpp
[129/176] Compiling AAplus AAEarth.cpp
[130/176] Compiling AABridge KPCAASaturnMoons.cpp
[131/176] Compiling AABridge KPCAASaturn.cpp
[132/176] Compiling AAplus AADate.cpp
[133/176] Compiling AABridge KPCAARiseTransitSet.cpp
[134/176] Compiling AAplus AAAberration.cpp
[135/176] Compiling AABridge KPCAARefraction.cpp
[136/176] Compiling AABridge KPCAAPrecession.cpp
[137/176] Compiling AABridge KPCAAPluto.cpp
[138/176] Compiling AABridge KPCAAPlanetaryPhenomena.cpp
[139/176] Compiling AAplus AADynamicalTime.cpp
[140/176] Compiling AABridge KPCAAPhysicalSun.cpp
[141/176] Compiling AABridge KPCAAPlanetPerihelionAphelion.cpp
[142/176] Compiling AABridge KPCAAPhysicalMoon.cpp
[143/176] Compiling AABridge KPCAAPhysicalMars.cpp
[144/176] Compiling AABridge KPCAAPhysicalJupiter.cpp
[145/176] Compiling AABridge KPCAAParallax.cpp
[146/176] Compiling AABridge KPCAAParallactic.cpp
[147/176] Compiling AABridge KPCAANutation.cpp
[148/176] Compiling AABridge KPCAAParabolic.cpp
[149/176] Compiling AABridge KPCAANodes.cpp
[150/176] Compiling AABridge KPCAANeptune.cpp
[151/176] Compiling AABridge KPCAANearParabolic.cpp
[152/176] Compiling AABridge KPCAAMoonPhases.cpp
[153/176] Compiling AABridge KPCAAMoonPerigeeApogee.cpp
[154/176] Compiling AABridge KPCAAMoonMaxDeclinations.cpp
[155/176] Compiling AABridge KPCAAMoonNodes.cpp
[156/176] Compiling AABridge KPCAAMoon.cpp
[157/176] Compiling AABridge KPCAAMoonIlluminatedFraction.cpp
[158/176] Compiling AABridge KPCAAMercury.cpp
[159/176] Compiling AABridge KPCAAMars.cpp
[160/176] Compiling AABridge KPCAAKepler.cpp
[161/176] Compiling AABridge KPCAAJupiter.cpp
[162/176] Compiling AABridge KPCAAInterpolate.cpp
[163/176] Compiling AABridge KPCAAGlobe.cpp
[164/176] Compiling AABridge KPCAAGalileanMoons.cpp
[165/176] Compiling AABridge KPCAAIlluminatedFraction.cpp
[166/176] Compiling AABridge KPCAAFK5.cpp
[167/176] Compiling AABridge KPCAAEquinoxesAndSolstices.cpp
[168/176] Compiling AABridge KPCAAEquationOfTime.cpp
[169/176] Compiling AABridge KPCAACoordinateTransformation.cpp
[170/176] Compiling AABridge KPCAAAngularSeparation.cpp
[171/176] Compiling AABridge KPCAA3DCoordinate.cpp
[172/176] Compiling AABridge KPCAAAberration.cpp
[173/176] Compiling AABridge KPCAA2DCoordinate.cpp
[174/214] Compiling AAplus AAELP2000.cpp
[175/214] Compiling AAplus AAELPMPP02.cpp
[177/214] Emitting module SwiftAA
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:63:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
61 |
62 |     // Called by the custom implementation of `fatalError`.
63 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
   |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'fatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 |     // backup of the original Swift `fatalError`
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:66:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
64 |
65 |     // backup of the original Swift `fatalError`
66 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
   |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'defaultFatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
67 |
68 |     /// Replace the `fatalError` global function with something else.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:48:23: warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 46 |
 47 |     /// Equatorial radius of the Eart. Source: Wikipedia.
 48 |     public static let equatorialRadius: Meter = 6378140.0
    |                       |- warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'equatorialRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:50:23: warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 48 |     public static let equatorialRadius: Meter = 6378140.0
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
    |                       |- warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'polarRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 51 |
 52 |     /// Accessor to all values of the underlying object details. Will probably become private
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Moon.swift:92:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 90 |
 91 |     /// The standard/mean apparent altitude for rise and set of the Moon. See AA p.102.
 92 |     public static let apparentRiseSetAltitude = Degree(0.125)
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 93 |
 94 |     // MARK: - CelestialBody
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:18:12: warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
    |            |- warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'BesselianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:25:12: warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
 25 | public let MeanLunarEquatorInclination: Degree = 1.54242 // Relative, to Ecliptic. See p. 372 of AA.
    |            |- warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'MeanLunarEquatorInclination' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 26 |
 27 | public typealias Kilogram=Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:159:1: warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
157 |
158 | /// KPCAAPlanet is an enum for all historical 9 planets, that is, including Pluto.
159 | extension KPCAAPlanet: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
160 |
161 |     /// Return the KPCAAPlanet enum value from a planet name string.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:30:23: warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// The (constant) diameter of the Sun.
 30 |     public static let diameter: Meter = 1392000000.0
    |                       |- warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'diameter' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:33:23: warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
 33 |     public static let semiDiameterAtOneAU: ArcSecond = 959.63
    |                       |- warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'semiDiameterAtOneAU' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:112:15: note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
110 |
111 | /// The ArcSecond is a unit of angle.
112 | public struct ArcSecond: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
113 |     /// The ArcSecond value
114 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:36:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
 36 |     public static let apparentRiseSetAltitude = ArcMinute(-50).inDegrees // See AA p.101
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 37 |
 38 |     // MARK: - Celestial Body
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[178/218] Compiling SwiftAA PlanetaryBase.swift
[179/218] Compiling SwiftAA PlanetaryDetails.swift
[180/218] Compiling SwiftAA PlanetaryOrbits.swift
[181/218] Compiling SwiftAA PlanetaryPhenomena.swift
[182/218] Compiling SwiftAA Mars.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Moon.swift:92:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 90 |
 91 |     /// The standard/mean apparent altitude for rise and set of the Moon. See AA p.102.
 92 |     public static let apparentRiseSetAltitude = Degree(0.125)
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 93 |
 94 |     // MARK: - CelestialBody
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[183/218] Compiling SwiftAA Mercury.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Moon.swift:92:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 90 |
 91 |     /// The standard/mean apparent altitude for rise and set of the Moon. See AA p.102.
 92 |     public static let apparentRiseSetAltitude = Degree(0.125)
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 93 |
 94 |     // MARK: - CelestialBody
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[184/218] Compiling SwiftAA Moon.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Moon.swift:92:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 90 |
 91 |     /// The standard/mean apparent altitude for rise and set of the Moon. See AA p.102.
 92 |     public static let apparentRiseSetAltitude = Degree(0.125)
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 93 |
 94 |     // MARK: - CelestialBody
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[185/218] Compiling SwiftAA Neptune.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Moon.swift:92:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 90 |
 91 |     /// The standard/mean apparent altitude for rise and set of the Moon. See AA p.102.
 92 |     public static let apparentRiseSetAltitude = Degree(0.125)
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 93 |
 94 |     // MARK: - CelestialBody
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[186/218] Compiling SwiftAA Sun.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:30:23: warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// The (constant) diameter of the Sun.
 30 |     public static let diameter: Meter = 1392000000.0
    |                       |- warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'diameter' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:33:23: warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
 33 |     public static let semiDiameterAtOneAU: ArcSecond = 959.63
    |                       |- warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'semiDiameterAtOneAU' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:112:15: note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
110 |
111 | /// The ArcSecond is a unit of angle.
112 | public struct ArcSecond: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
113 |     /// The ArcSecond value
114 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:36:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
 36 |     public static let apparentRiseSetAltitude = ArcMinute(-50).inDegrees // See AA p.101
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 37 |
 38 |     // MARK: - Celestial Body
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[187/218] Compiling SwiftAA Times.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:30:23: warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// The (constant) diameter of the Sun.
 30 |     public static let diameter: Meter = 1392000000.0
    |                       |- warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'diameter' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:33:23: warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
 33 |     public static let semiDiameterAtOneAU: ArcSecond = 959.63
    |                       |- warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'semiDiameterAtOneAU' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:112:15: note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
110 |
111 | /// The ArcSecond is a unit of angle.
112 | public struct ArcSecond: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
113 |     /// The ArcSecond value
114 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:36:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
 36 |     public static let apparentRiseSetAltitude = ArcMinute(-50).inDegrees // See AA p.101
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 37 |
 38 |     // MARK: - Celestial Body
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[188/218] Compiling SwiftAA Uranus.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:30:23: warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// The (constant) diameter of the Sun.
 30 |     public static let diameter: Meter = 1392000000.0
    |                       |- warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'diameter' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:33:23: warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
 33 |     public static let semiDiameterAtOneAU: ArcSecond = 959.63
    |                       |- warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'semiDiameterAtOneAU' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:112:15: note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
110 |
111 | /// The ArcSecond is a unit of angle.
112 | public struct ArcSecond: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
113 |     /// The ArcSecond value
114 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:36:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
 36 |     public static let apparentRiseSetAltitude = ArcMinute(-50).inDegrees // See AA p.101
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 37 |
 38 |     // MARK: - Celestial Body
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[189/218] Compiling SwiftAA Venus.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:30:23: warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 28 |
 29 |     /// The (constant) diameter of the Sun.
 30 |     public static let diameter: Meter = 1392000000.0
    |                       |- warning: static property 'diameter' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'diameter' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:33:23: warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
 31 |
 32 |     /// The (constant/adopted) semi-diameter of the Sun.
 33 |     public static let semiDiameterAtOneAU: ArcSecond = 959.63
    |                       |- warning: static property 'semiDiameterAtOneAU' is not concurrency-safe because non-'Sendable' type 'ArcSecond' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'semiDiameterAtOneAU' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:112:15: note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
110 |
111 | /// The ArcSecond is a unit of angle.
112 | public struct ArcSecond: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'ArcSecond' conform to the 'Sendable' protocol
113 |     /// The ArcSecond value
114 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Sun.swift:36:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 34 |
 35 |     /// The default apparent altitude of the sun to compute rise and set times.
 36 |     public static let apparentRiseSetAltitude = ArcMinute(-50).inDegrees // See AA p.101
    |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 37 |
 38 |     // MARK: - Celestial Body
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[190/218] Compiling SwiftAA Angles.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[191/218] Compiling SwiftAA Asteroids.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[192/218] Compiling SwiftAA AstronomicalCoordinates.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[193/218] Compiling SwiftAA AstronomicalObject.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[194/218] Compiling SwiftAA AthmosphericRefraction.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[195/218] Compiling SwiftAA Saturn.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:18:12: warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
    |            |- warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'BesselianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:25:12: warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
 25 | public let MeanLunarEquatorInclination: Degree = 1.54242 // Relative, to Ecliptic. See p. 372 of AA.
    |            |- warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'MeanLunarEquatorInclination' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 26 |
 27 | public typealias Kilogram=Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:159:1: warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
157 |
158 | /// KPCAAPlanet is an enum for all historical 9 planets, that is, including Pluto.
159 | extension KPCAAPlanet: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
160 |
161 |     /// Return the KPCAAPlanet enum value from a planet name string.
[196/218] Compiling SwiftAA SaturnMoons.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:18:12: warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
    |            |- warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'BesselianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:25:12: warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
 25 | public let MeanLunarEquatorInclination: Degree = 1.54242 // Relative, to Ecliptic. See p. 372 of AA.
    |            |- warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'MeanLunarEquatorInclination' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 26 |
 27 | public typealias Kilogram=Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:159:1: warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
157 |
158 | /// KPCAAPlanet is an enum for all historical 9 planets, that is, including Pluto.
159 | extension KPCAAPlanet: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
160 |
161 |     /// Return the KPCAAPlanet enum value from a planet name string.
[197/218] Compiling SwiftAA SaturnRings.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:18:12: warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
    |            |- warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'BesselianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:25:12: warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
 25 | public let MeanLunarEquatorInclination: Degree = 1.54242 // Relative, to Ecliptic. See p. 372 of AA.
    |            |- warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'MeanLunarEquatorInclination' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 26 |
 27 | public typealias Kilogram=Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:159:1: warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
157 |
158 | /// KPCAAPlanet is an enum for all historical 9 planets, that is, including Pluto.
159 | extension KPCAAPlanet: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
160 |
161 |     /// Return the KPCAAPlanet enum value from a planet name string.
[198/218] Compiling SwiftAA ScientificConstants.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:16:12: warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 14 |
 15 | /// The length of Julian Years, in days.
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
    |            |- warning: let 'JulianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'JulianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:18:12: warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
 16 | public let JulianYear: Day = 365.25            // See p.133 of AA.
 17 | /// The length of Besselian Years, in days.
 18 | public let BesselianYear: Day = 365.2421988    // See p.133 of AA.
    |            |- warning: let 'BesselianYear' is not concurrency-safe because non-'Sendable' type 'Day' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'BesselianYear' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Times.swift:14:15: note: consider making struct 'Day' conform to the 'Sendable' protocol
 12 |
 13 | /// The Day is a number representing an Earth day.
 14 | public struct Day: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Day' conform to the 'Sendable' protocol
 15 |
 16 |     /// The Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:25:12: warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
 25 | public let MeanLunarEquatorInclination: Degree = 1.54242 // Relative, to Ecliptic. See p. 372 of AA.
    |            |- warning: let 'MeanLunarEquatorInclination' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'MeanLunarEquatorInclination' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 26 |
 27 | public typealias Kilogram=Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:159:1: warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
157 |
158 | /// KPCAAPlanet is an enum for all historical 9 planets, that is, including Pluto.
159 | extension KPCAAPlanet: CustomStringConvertible {
    | |- warning: extension declares a conformance of imported type 'KPCAAPlanet' to imported protocol 'CustomStringConvertible'; this will not behave correctly if the owners of 'AABridge' introduce this conformance in the future
    | `- note: add '@retroactive' to silence this warning
160 |
161 |     /// Return the KPCAAPlanet enum value from a planet name string.
[199/218] Compiling SwiftAA NumericType.swift
[200/218] Compiling SwiftAA Nutation.swift
[201/218] Compiling SwiftAA ObjectBase.swift
[202/218] Compiling SwiftAA PlanetConstants.swift
[203/218] Compiling SwiftAA Distances.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:48:23: warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 46 |
 47 |     /// Equatorial radius of the Eart. Source: Wikipedia.
 48 |     public static let equatorialRadius: Meter = 6378140.0
    |                       |- warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'equatorialRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:50:23: warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 48 |     public static let equatorialRadius: Meter = 6378140.0
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
    |                       |- warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'polarRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 51 |
 52 |     /// Accessor to all values of the underlying object details. Will probably become private
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[204/218] Compiling SwiftAA Earth.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:48:23: warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 46 |
 47 |     /// Equatorial radius of the Eart. Source: Wikipedia.
 48 |     public static let equatorialRadius: Meter = 6378140.0
    |                       |- warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'equatorialRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:50:23: warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 48 |     public static let equatorialRadius: Meter = 6378140.0
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
    |                       |- warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'polarRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 51 |
 52 |     /// Accessor to all values of the underlying object details. Will probably become private
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[205/218] Compiling SwiftAA Fluxes.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:48:23: warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 46 |
 47 |     /// Equatorial radius of the Eart. Source: Wikipedia.
 48 |     public static let equatorialRadius: Meter = 6378140.0
    |                       |- warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'equatorialRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:50:23: warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 48 |     public static let equatorialRadius: Meter = 6378140.0
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
    |                       |- warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'polarRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 51 |
 52 |     /// Accessor to all values of the underlying object details. Will probably become private
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[206/218] Compiling SwiftAA GeographicCoordinates.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:48:23: warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 46 |
 47 |     /// Equatorial radius of the Eart. Source: Wikipedia.
 48 |     public static let equatorialRadius: Meter = 6378140.0
    |                       |- warning: static property 'equatorialRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'equatorialRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Earth.swift:50:23: warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
 48 |     public static let equatorialRadius: Meter = 6378140.0
 49 |     /// Polar radius of the Eart. Source: Wikipedia.
 50 |     public static let polarRadius: Meter = 6356760.0
    |                       |- warning: static property 'polarRadius' is not concurrency-safe because non-'Sendable' type 'Meter' may have shared mutable state; this is an error in the Swift 6 language mode
    |                       |- note: annotate 'polarRadius' with '@MainActor' if property should only be accessed from the main actor
    |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 51 |
 52 |     /// Accessor to all values of the underlying object details. Will probably become private
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Distances.swift:77:15: note: consider making struct 'Meter' conform to the 'Sendable' protocol
 75 |
 76 | /// The Meter is a unit of distance.
 77 | public struct Meter: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Meter' conform to the 'Sendable' protocol
 78 |     /// The Meter value
 79 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[207/218] Compiling SwiftAA JulianDay.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
[208/218] Compiling SwiftAA Jupiter.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
[209/218] Compiling SwiftAA JupiterMoons.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
[210/218] Compiling SwiftAA Magnitudes.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:21:12: warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 19 |
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_J2000_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_J2000_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
 23 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/ScientificConstants.swift:22:12: warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
 20 | /// The new standard epoch, as decided by the IAU in 1984.
 21 | public let StandardEpoch_J2000_0: JulianDay = 2451545.0 // See p.133 of AA.
 22 | public let StandardEpoch_B1950_0: JulianDay = 2433282.4235 // See p.133 of AA.
    |            |- warning: let 'StandardEpoch_B1950_0' is not concurrency-safe because non-'Sendable' type 'JulianDay' may have shared mutable state; this is an error in the Swift 6 language mode
    |            |- note: annotate 'StandardEpoch_B1950_0' with '@MainActor' if property should only be accessed from the main actor
    |            `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
 23 |
 24 | /// Mean value of the lunar equator inclination, relative to the ecliptic.
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/JulianDay.swift:15:15: note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 13 | /// By tradition, the Julian Day begins at Greenwhich mean noon, that is, at 12h Universal Time.
 14 | /// Julian Day structs conform to SwiftAA Numeric type protocol.
 15 | public struct JulianDay: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'JulianDay' conform to the 'Sendable' protocol
 16 |
 17 |     /// The Julian Day value
[211/218] Compiling SwiftAA BinaryStars.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:63:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
61 |
62 |     // Called by the custom implementation of `fatalError`.
63 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
   |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'fatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 |     // backup of the original Swift `fatalError`
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:66:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
64 |
65 |     // backup of the original Swift `fatalError`
66 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
   |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'defaultFatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
67 |
68 |     /// Replace the `fatalError` global function with something else.
[212/218] Compiling SwiftAA CelestialBodies.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:63:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
61 |
62 |     // Called by the custom implementation of `fatalError`.
63 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
   |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'fatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 |     // backup of the original Swift `fatalError`
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:66:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
64 |
65 |     // backup of the original Swift `fatalError`
66 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
   |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'defaultFatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
67 |
68 |     /// Replace the `fatalError` global function with something else.
[213/218] Compiling SwiftAA Constants.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:63:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
61 |
62 |     // Called by the custom implementation of `fatalError`.
63 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
   |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'fatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 |     // backup of the original Swift `fatalError`
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:66:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
64 |
65 |     // backup of the original Swift `fatalError`
66 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
   |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'defaultFatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
67 |
68 |     /// Replace the `fatalError` global function with something else.
[214/218] Compiling SwiftAA DateExtensions.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:63:16: warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
61 |
62 |     // Called by the custom implementation of `fatalError`.
63 |     static var fatalErrorClosure: (String, StaticString, UInt) -> Never = defaultFatalErrorClosure
   |                |- warning: static property 'fatalErrorClosure' is not concurrency-safe because it is nonisolated global shared mutable state; this is an error in the Swift 6 language mode
   |                |- note: convert 'fatalErrorClosure' to a 'let' constant to make 'Sendable' shared state immutable
   |                |- note: annotate 'fatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
64 |
65 |     // backup of the original Swift `fatalError`
<unknown>:0: note: a function type must be marked '@Sendable' to conform to 'Sendable'
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Constants.swift:66:24: warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
64 |
65 |     // backup of the original Swift `fatalError`
66 |     private static let defaultFatalErrorClosure = { Swift.fatalError($0, file: $1, line: $2) }
   |                        |- warning: static property 'defaultFatalErrorClosure' is not concurrency-safe because non-'Sendable' type '(String, StaticString, UInt) -> Never' may have shared mutable state; this is an error in the Swift 6 language mode
   |                        |- note: annotate 'defaultFatalErrorClosure' with '@MainActor' if property should only be accessed from the main actor
   |                        `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
67 |
68 |     /// Replace the `fatalError` global function with something else.
[215/218] Compiling SwiftAA PlanetaryPhysicalDetails.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[216/218] Compiling SwiftAA Planets.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[217/218] Compiling SwiftAA Pluto.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
[218/218] Compiling SwiftAA RiseTransitSet.swift
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Planets.swift:60:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
58 |     /// of apparent rising or setting. There is a value for the stars and planets, and one for the Sun.
59 |     /// See AA p.101 for more explanations
60 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
61 |
62 | }
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/AstronomicalObject.swift:31:23: warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
29 |     public var radiusVector: AstronomicalUnit { get { return -1 } }
30 |
31 |     public static let apparentRiseSetAltitude = ArcMinute(-34).inDegrees // See AA p.101
   |                       |- warning: static property 'apparentRiseSetAltitude' is not concurrency-safe because non-'Sendable' type 'Degree' may have shared mutable state; this is an error in the Swift 6 language mode
   |                       |- note: annotate 'apparentRiseSetAltitude' with '@MainActor' if property should only be accessed from the main actor
   |                       `- note: disable concurrency-safety checks if accesses are protected by an external synchronization mechanism
32 | }
33 |
/Users/admin/builder/spi-builder-workspace/Sources/SwiftAA/Angles.swift:13:15: note: consider making struct 'Degree' conform to the 'Sendable' protocol
 11 |
 12 | /// The Degree is a unit of angle.
 13 | public struct Degree: NumericType, CustomStringConvertible {
    |               `- note: consider making struct 'Degree' conform to the 'Sendable' protocol
 14 |     /// The Degree value
 15 |     public let value: Double
Build complete! (29.98s)
Build complete.
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Done.