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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 NotationView 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/notationview.git
Reference: 0.1.0
Initialized empty Git repository in /Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.git/
From https://github.com/dn-m/notationview
 * tag               0.1.0      -> FETCH_HEAD
HEAD is now at edf1405 Merge pull request #18 from dn-m/update
Cloned https://github.com/dn-m/notationview.git
Revision (git rev-parse @):
edf1405c78b0b8c5d447164ce831a9adc5785d3f
SUCCESS checkout https://github.com/dn-m/notationview.git at 0.1.0
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             5.10
Building package at path:  $workDir
https://github.com/dn-m/notationview.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0-Beta.2.app xcrun swift build --arch arm64
Building for debugging...
[0/19] Write sources
[18/19] Write swift-version--423B1241ED78D482.txt
[20/21] Compiling Destructure Destructure.swift
[21/21] Emitting module Destructure
[22/44] Compiling Algebra Group.swift
[23/44] Compiling Algebra Invertible.swift
[24/45] Compiling Algebra Monoid.swift
[25/45] Compiling Algebra MonoidView.swift
[26/45] Compiling Algebra Multiplicative.swift
[27/45] Compiling Algebra MultiplicativeSemigroup.swift
[28/45] Compiling Algorithms Split.swift
[29/45] Compiling Algorithms Swap.swift
[30/45] Compiling Algorithms TupleMap.swift
[31/46] Compiling Algebra One.swift
[32/46] Compiling Algebra Product.swift
[33/46] Compiling Algebra Semigroup.swift
[34/46] Compiling Algebra Sum.swift
[35/46] Compiling Algebra Zero.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[36/46] Compiling Algorithms Ordered.swift
[37/46] Compiling Algorithms Rotate.swift
[38/46] Compiling Algorithms StableSort.swift
[39/46] Emitting module Algorithms
/Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/Algorithms/Combinatorics.swift:60:41: error: cannot find type 'SubSequence' in scope
    public var pairs: Zip2Sequence<Self,SubSequence> {
                                        ^~~~~~~~~~~
[40/46] Compiling Algorithms Combinatorics.swift
/Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/Algorithms/Combinatorics.swift:60:41: error: cannot find type 'SubSequence' in scope
    public var pairs: Zip2Sequence<Self,SubSequence> {
                                        ^~~~~~~~~~~
[41/46] Compiling Algorithms Unzip.swift
[42/46] Compiling Algebra Accumulate.swift
[43/46] Compiling Algebra Additive.swift
[44/46] Compiling Algebra AdditiveSemigroup.swift
[45/46] Compiling Algebra AlgebraAdapters.swift
[46/46] Emitting module Algebra
error: fatalError
Fetching https://github.com/dn-m/Structure from cache
Fetching https://github.com/dn-m/Math from cache
Fetching https://github.com/dn-m/PerformanceTesting from cache
Fetching https://github.com/dn-m/Music from cache
Fetching https://github.com/dn-m/NotationModel from cache
Fetching https://github.com/dn-m/Graphics from cache
Fetched https://github.com/dn-m/Graphics from cache (0.22s)
Fetched https://github.com/dn-m/PerformanceTesting from cache (0.22s)
Fetching https://github.com/drmohundro/SWXMLHash from cache
Fetched https://github.com/dn-m/Math from cache (0.22s)
Fetched https://github.com/dn-m/Structure from cache (0.22s)
Fetched https://github.com/dn-m/Music from cache (0.22s)
Fetched https://github.com/dn-m/NotationModel from cache (0.22s)
Computing version for https://github.com/dn-m/NotationModel
Fetched https://github.com/drmohundro/SWXMLHash from cache (0.18s)
Computed https://github.com/dn-m/NotationModel at 0.6.0 (0.47s)
Computing version for https://github.com/dn-m/Graphics
Computed https://github.com/dn-m/Graphics at 0.1.1 (0.41s)
Computing version for https://github.com/dn-m/Music
Computed https://github.com/dn-m/Music at 0.10.0 (0.41s)
Computing version for https://github.com/dn-m/Math
Computed https://github.com/dn-m/Math at 0.6.0 (0.43s)
Computing version for https://github.com/dn-m/Structure
Computed https://github.com/dn-m/Structure at 0.19.3 (0.43s)
Computing version for https://github.com/drmohundro/SWXMLHash
Computed https://github.com/drmohundro/SWXMLHash at 4.7.4 (0.43s)
Computing version for https://github.com/dn-m/PerformanceTesting
Computed https://github.com/dn-m/PerformanceTesting at 0.3.0 (0.39s)
warning: /Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/repositories/SWXMLHash-ff0954f2 is not valid git repository for 'https://github.com/drmohundro/SWXMLHash', will fetch again.
Fetching https://github.com/drmohundro/SWXMLHash from cache
Fetched https://github.com/drmohundro/SWXMLHash from cache (0.01s)
warning: /Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/repositories/SWXMLHash-ff0954f2 is not valid git repository for 'https://github.com/drmohundro/SWXMLHash', will fetch again.
Fetching https://github.com/drmohundro/SWXMLHash from cache
Fetched https://github.com/drmohundro/SWXMLHash from cache (0.00s)
Creating working copy for https://github.com/drmohundro/SWXMLHash
Working copy of https://github.com/drmohundro/SWXMLHash resolved at 4.7.4
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/Graphics
Working copy of https://github.com/dn-m/Graphics resolved at 0.1.1
Creating working copy for https://github.com/dn-m/Math
Working copy of https://github.com/dn-m/Math resolved at 0.6.0
Creating working copy for https://github.com/dn-m/Music
Working copy of https://github.com/dn-m/Music resolved at 0.10.0
Creating working copy for https://github.com/dn-m/NotationModel
Working copy of https://github.com/dn-m/NotationModel resolved at 0.6.0
Creating working copy for https://github.com/dn-m/Structure
Working copy of https://github.com/dn-m/Structure resolved at 0.19.3
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version--423B1241ED78D482.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/3] Emitting module Algorithms
/Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/Algorithms/Combinatorics.swift:60:41: error: cannot find type 'SubSequence' in scope
    public var pairs: Zip2Sequence<Self,SubSequence> {
                                        ^~~~~~~~~~~
[3/3] Compiling Algorithms Combinatorics.swift
/Users/admin/builds/J1XnyXFH/0/finestructure/swiftpackageindex-builder/spi-builder-workspace/.build/checkouts/Structure/Sources/Algorithms/Combinatorics.swift:60:41: error: cannot find type 'SubSequence' in scope
    public var pairs: Zip2Sequence<Self,SubSequence> {
                                        ^~~~~~~~~~~
error: fatalError
BUILD FAILURE 5.10 macosSpm