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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

Failed to build NotationModel with Swift 5.10 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64

Build Log

========================================
RunAll
========================================
Builder version: 4.29.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/dn-m/notationmodel.git
Reference: 0.9.0
Initialized empty Git repository in /Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/dn-m/notationmodel
 * tag               0.9.0      -> FETCH_HEAD
HEAD is now at a68f1af Remove usage of CollectionWrapping and RandomAccessCollectionWrapping (#217)
Cloned https://github.com/dn-m/notationmodel.git
Revision (git rev-parse @):
a68f1af89ca15c41736e25f17616a4504838073c
SUCCESS checkout https://github.com/dn-m/notationmodel.git at 0.9.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $workDir
https://github.com/dn-m/notationmodel.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64
Building for debugging...
[0/12] Write sources
[11/12] Write swift-version--423B1241ED78D482.txt
[13/14] Emitting module Destructure
[14/14] Compiling Destructure Destructure.swift
[15/37] Compiling Algorithms TupleMap.swift
[16/38] Compiling Algorithms Swap.swift
[17/38] Compiling Algebra MonoidView.swift
[18/38] Compiling Algebra Multiplicative.swift
[19/40] Compiling Algorithms Unzip.swift
[20/40] Compiling Algebra Product.swift
[21/40] Compiling Algebra Semigroup.swift
[22/40] Compiling Algebra MultiplicativeSemigroup.swift
[23/40] Compiling Algebra One.swift
[24/40] Compiling Algorithms Ordered.swift
[25/40] Compiling Algorithms Split.swift
[26/40] Compiling Algorithms StableSort.swift
[27/40] Compiling Algebra Accumulate.swift
[28/40] Compiling Algebra Additive.swift
[29/40] Emitting module Algebra
[30/40] Compiling Algorithms Combinatorics.swift
[31/40] Emitting module Algorithms
[32/40] Compiling Algorithms Rotate.swift
[33/40] Compiling Algebra Invertible.swift
[34/40] Compiling Algebra Monoid.swift
[35/40] Compiling Algebra Sum.swift
[36/40] Compiling Algebra Zero.swift
[37/40] Compiling Algebra AdditiveGroup.swift
[38/40] Compiling Algebra AdditiveSemigroup.swift
[39/40] Compiling Algebra AlgebraAdapters.swift
[40/40] Compiling Algebra Group.swift
[41/99] Compiling DataStructures IntervalRelation.swift
[42/99] Compiling DataStructures InvertibleEnum.swift
[43/99] Compiling DataStructures LinkedList.swift
[44/99] Compiling DataStructures Matrix.swift
[45/99] Compiling DataStructures Metatype.swift
[46/99] Compiling DataStructures NewType.swift
[47/99] Compiling DataStructures OrderedDictionary.swift
[48/99] Compiling DataStructures Cross.swift
[49/99] Compiling DataStructures ReferenceGraph.AdjacencyList.swift
[50/99] Compiling DataStructures ReferenceGraph.Edge.swift
[51/99] Compiling DataStructures ReferenceGraph.EdgeList.swift
[52/99] Compiling DataStructures ReferenceGraph.Node.swift
[53/99] Compiling DataStructures ReferenceGraph.swift
[54/99] Compiling DataStructures ReferenceTree.swift
[55/99] Compiling DataStructures ReferenceTreeProtocol.swift
[56/99] Compiling DataStructures SequenceExtensions.swift
[57/107] Emitting module DataStructures
[58/107] Compiling DataStructures GraphProtocol.swift
[59/107] Compiling DataStructures UndirectedGraphProtocol.swift
[60/107] Compiling DataStructures UnweightedGraphProtocol.swift
[61/107] Compiling DataStructures WeightedGraphProtocol.swift
[62/107] Compiling DataStructures WeightedDirectedGraph.swift
[63/107] Compiling DataStructures WeightedGraph.swift
[64/107] Compiling DataStructures Homogeneity.swift
[65/107] Compiling DataStructures Identifier.swift
[66/107] Compiling DataStructures DoubleWrapping.swift
[67/107] Compiling DataStructures FloatWrapping.swift
[68/107] Compiling DataStructures IntegerWrapping.swift
[69/107] Compiling DataStructures RandomAccessCollectionWrapping.swift
[70/107] Compiling DataStructures SequenceWrapping.swift
[71/107] Compiling DataStructures SortedCollectionWrapping.swift
[72/107] Compiling DataStructures Zip3Sequence.swift
[73/107] Compiling DataStructures ZipToLongest.swift
[74/107] Compiling DataStructures SetExtensions.swift
[75/107] Compiling DataStructures SingleTypedTree.swift
[76/107] Compiling DataStructures SortedArray.swift
[77/107] Compiling DataStructures SortedDictionary.swift
[78/107] Compiling DataStructures Stack.swift
[79/107] Compiling DataStructures Tree.Zipper.swift
[80/107] Compiling DataStructures Tree.swift
[81/107] Compiling DataStructures CollectionWrapping.swift
[82/107] Compiling DataStructures Intervallic.swift
[83/107] Compiling DataStructures IntervallicFragmentable.swift
[84/107] Compiling DataStructures Measured.swift
[85/107] Compiling DataStructures Totalizable.swift
[86/107] Compiling DataStructures DictionaryProtocol.swift
[87/107] Compiling DataStructures Either.swift
[88/107] Compiling DataStructures DirectedGraph.swift
[89/107] Compiling DataStructures Graph.swift
[90/107] Compiling DataStructures DirectedGraphProtocol.swift
[91/107] Compiling DataStructures OrderedPair.swift
[92/107] Compiling DataStructures Pair.swift
[93/107] Compiling DataStructures SwappablePair.swift
[94/107] Compiling DataStructures SymmetricPair.swift
[95/107] Compiling DataStructures UnorderedPair.swift
[96/107] Compiling DataStructures Queue.swift
[97/107] Compiling DataStructures RangeProtocol+Algebra.swift
[98/107] Compiling DataStructures RangeProtocol.swift
[99/107] Compiling DataStructures AVLTree.swift
[100/107] Compiling DataStructures AdjacencyList.swift
[101/107] Compiling DataStructures Bimap.swift
[102/107] Compiling DataStructures BinaryHeap.swift
[103/107] Compiling DataStructures BinarySearchTree.swift
[104/107] Compiling DataStructures CircularArray.swift
[105/107] Compiling DataStructures CollectionExtensions.swift
[106/107] Compiling DataStructures ContiguousSegmentCollection.swift
[107/107] Compiling DataStructures Fragmentable.swift
[108/130] Compiling PlotModel DefaultVerticalPlotModel.swift
[109/130] Emitting module PlotModel
[110/131] Compiling PlotModel DefaultVerticalPlotModel.Builder.swift
[111/131] Compiling PlotModel Axis.swift
[112/131] Compiling PlotModel DefaultAxis.swift
[113/131] Compiling PlotModel DefaultVerticalPointModel.swift
[114/131] Compiling PlotModel PointModel.swift
[115/131] Compiling PlotModel PlotModel.swift
[116/131] Compiling PlotModel HorizontalPlotModel.swift
[117/131] Compiling PlotModel VerticalPlotModel.swift
[118/131] Compiling Math Power.swift
[119/131] Compiling Math PowerOfTwoSequence.swift
[120/132] Compiling Math Scale.swift
[121/132] Emitting module Math
[124/132] Compiling Math Proximity.swift
[125/132] Compiling Math Quadratic.swift
[126/132] Compiling Math Functions.swift
[127/132] Compiling Math GCDDomain.swift
[128/132] Compiling Math IntegerExtensions.swift
[129/132] Compiling Math LinearRegression.swift
[130/132] Compiling Math Rational.swift
[131/132] Compiling Math DoubleExtensions.swift
[132/132] Compiling Math Fraction.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[133/166] Compiling Pitch Scale.IntervalPattern.swift
[134/166] Compiling Pitch Scale.swift
[135/166] Compiling Duration Rhythm.swift
[136/166] Compiling Duration Meter.swift
[137/166] Emitting module Pitch
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/Frequency.swift:25:15: error: type 'Frequency' does not conform to protocol 'AdditiveArithmetic'
public struct Frequency: NewType, SignedNumeric {
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout Frequency, Frequency) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout Frequency, Frequency) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/NoteNumber.swift:27:15: error: type 'NoteNumber' does not conform to protocol 'AdditiveArithmetic'
public struct NoteNumber:
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[138/168] Compiling Duration AbsenceOrEvent.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/NoteNumber.swift:27:15: error: type 'NoteNumber' does not conform to protocol 'AdditiveArithmetic'
public struct NoteNumber:
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[139/168] Compiling Pitch UnorderedIntervalDescriptor.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/NoteNumber.swift:27:15: error: type 'NoteNumber' does not conform to protocol 'AdditiveArithmetic'
public struct NoteNumber:
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[140/168] Compiling Pitch NoteNumber.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/NoteNumber.swift:27:15: error: type 'NoteNumber' does not conform to protocol 'AdditiveArithmetic'
public struct NoteNumber:
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[141/168] Compiling Duration Beats.swift
[142/168] Compiling Duration Duration.swift
[143/168] Compiling Duration ProportionTree.swift
[144/168] Compiling Pitch IntervalDescriptor.swift
[145/168] Compiling Pitch IntervalOrdinal.swift
[146/168] Compiling Pitch IntervalQuality.swift
[147/168] Compiling Duration Meter.Fragment.swift
[148/168] Compiling Duration Meter.Kind.swift
[149/168] Compiling Pitch Dyad.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/Frequency.swift:25:15: error: type 'Frequency' does not conform to protocol 'AdditiveArithmetic'
public struct Frequency: NewType, SignedNumeric {
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout Frequency, Frequency) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout Frequency, Frequency) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[150/168] Compiling Duration ContinuationOrInstance.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/Frequency.swift:25:15: error: type 'Frequency' does not conform to protocol 'AdditiveArithmetic'
public struct Frequency: NewType, SignedNumeric {
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout Frequency, Frequency) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout Frequency, Frequency) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[151/168] Compiling Duration DurationTree.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/Frequency.swift:25:15: error: type 'Frequency' does not conform to protocol 'AdditiveArithmetic'
public struct Frequency: NewType, SignedNumeric {
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout Frequency, Frequency) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout Frequency, Frequency) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[152/168] Compiling Pitch TuningSystem.swift
[153/168] Compiling Pitch UnorderedInterval.swift
[160/168] Emitting module Duration
error: fatalError
Fetching https://github.com/dn-m/Math from cache
Fetching https://github.com/dn-m/Structure from cache
Fetching https://github.com/dn-m/PerformanceTesting from cache
Fetching https://github.com/dn-m/Music from cache
Fetched https://github.com/dn-m/PerformanceTesting from cache (0.20s)
Fetched https://github.com/dn-m/Structure from cache (0.20s)
Fetched https://github.com/dn-m/Math from cache (0.20s)
Fetched https://github.com/dn-m/Music from cache (0.20s)
Computing version for https://github.com/dn-m/Music
Computed https://github.com/dn-m/Music at 0.15.0 (0.40s)
Computing version for https://github.com/dn-m/Math
Computed https://github.com/dn-m/Math at 0.7.1 (0.37s)
Computing version for https://github.com/dn-m/Structure
Computed https://github.com/dn-m/Structure at 0.23.0 (0.37s)
Computing version for https://github.com/dn-m/PerformanceTesting
Computed https://github.com/dn-m/PerformanceTesting at 0.3.0 (0.37s)
Creating working copy for https://github.com/dn-m/Music
Working copy of https://github.com/dn-m/Music resolved at 0.15.0
Creating working copy for https://github.com/dn-m/PerformanceTesting
Working copy of https://github.com/dn-m/PerformanceTesting resolved at 0.3.0
Creating working copy for https://github.com/dn-m/Math
Working copy of https://github.com/dn-m/Math resolved at 0.7.1
Creating working copy for https://github.com/dn-m/Structure
Working copy of https://github.com/dn-m/Structure resolved at 0.23.0
warning: 'spi-builder-workspace': dependency 'math' is not used by any target
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version--423B1241ED78D482.txt
[2/21] Compiling Pitch UnorderedIntervalDescriptor.swift
[3/21] Compiling Pitch NoteNumber.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/NoteNumber.swift:27:15: error: type 'NoteNumber' does not conform to protocol 'AdditiveArithmetic'
public struct NoteNumber:
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
error: emit-module command failed with exit code 1 (use -v to see invocation)
[4/21] Compiling Pitch Dyad.swift
[5/21] Emitting module Pitch
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/Frequency.swift:25:15: error: type 'Frequency' does not conform to protocol 'AdditiveArithmetic'
public struct Frequency: NewType, SignedNumeric {
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout Frequency, Frequency) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout Frequency, Frequency) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/NoteNumber.swift:27:15: error: type 'NoteNumber' does not conform to protocol 'AdditiveArithmetic'
public struct NoteNumber:
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout NoteNumber, NoteNumber) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[6/22] Compiling Duration Beats.swift
[7/22] Compiling Duration Duration.swift
[8/22] Compiling Duration ContinuationOrInstance.swift
[9/22] Compiling Duration DurationTree.swift
[10/22] Emitting module Duration
[11/22] Compiling Duration Meter.Collection.swift
[12/22] Compiling Duration Meter.Context.swift
[13/22] Compiling Duration Meter.Fragment.swift
[14/22] Compiling Duration Meter.Kind.swift
[15/22] Compiling Duration Rhythm.swift
[16/22] Compiling Duration Meter.swift
[17/22] Compiling Duration AbsenceOrEvent.swift
[18/22] Compiling Duration ProportionTree.swift
[19/23] Compiling Pitch CompoundIntervalDescriptor.swift
[20/23] Compiling Pitch OrderedIntervalDescriptor.swift
[21/23] Compiling Pitch Frequency.swift
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Music/Sources/Pitch/Frequency.swift:25:15: error: type 'Frequency' does not conform to protocol 'AdditiveArithmetic'
public struct Frequency: NewType, SignedNumeric {
              ^
Swift.AdditiveArithmetic:4:17: note: multiple matching functions named '+=' with type '(inout Frequency, Frequency) -> ()'
    static func += (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:2:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:70:24: note: candidate exactly matches
    public static func += (lhs: inout Self, rhs: Self) {
                       ^
Swift.AdditiveArithmetic:6:17: note: multiple matching functions named '-=' with type '(inout Frequency, Frequency) -> ()'
    static func -= (lhs: inout Self, rhs: Self)
                ^
Swift.AdditiveArithmetic:3:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self)
                       ^
/Users/builder/builds/UKfvDsi8u/3/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/DataStructures/NewType.swift:78:24: note: candidate exactly matches
    public static func -= (lhs: inout Self, rhs: Self) {
                       ^
[22/24] Compiling Pitch ChordDescriptor.swift
[23/24] Compiling Pitch Pitch.Class.swift
error: fatalError
warning: 'spi-builder-workspace': dependency 'math' is not used by any target
BUILD FAILURE 5.10 macosSpm