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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 SwiftUIKit with Swift 6.0 for macOS (SPM).

Build Command

env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete

Build Log

========================================
RunAll
========================================
Builder version: 4.40.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/0xLet/SwiftUIKit.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/0xLet/SwiftUIKit
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at bcfd62d Updated DataObject to 1.0.0
Cloned https://github.com/0xLet/SwiftUIKit.git
Revision (git rev-parse @):
bcfd62da77d0025920eed05c7efa1d6719811c0b
SUCCESS checkout https://github.com/0xLet/SwiftUIKit.git at main
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/0xLet/SwiftUIKit.git
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-15.3.0.app xcrun --toolchain org.swift.600202405261a swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete
Building for debugging...
[0/9] Write sources
[8/9] Write swift-version-6F35C1178C84523A.txt
[10/33] Compiling E Function.swift
[11/33] Emitting module E
[12/33] Compiling E Variable.swift
[13/33] Compiling E Control.swift
[14/33] Compiling E State.swift
[15/35] Compiling SwiftFu SwiftFu+.swift
[16/36] Compiling SwiftFu Boolable.swift
[17/36] Compiling SwiftFu Configurable.swift
[18/36] Compiling SwiftFu Tuplable.swift
[19/36] Compiling SwiftFu Modifiable.swift
[20/36] Compiling SwiftFu Fuable.swift
[21/36] Compiling SwiftFu Printable.swift
[22/36] Compiling SwiftFu Functionable.swift
[23/36] Compiling SwiftFu Switch+.swift
[24/36] Compiling SURL String+.swift
[25/36] Compiling SURL URLRequest+.swift
[26/36] Compiling SwiftFu BinaryInteger+.swift
[27/36] Compiling SwiftFu Assertable.swift
[28/36] Compiling Chain Chain.swift
[29/36] Emitting module Chain
[30/36] Emitting module WTV
[31/36] Compiling WTV WTV.swift
[32/36] Compiling SURL URL+.swift
[33/36] Emitting module SURL
[34/36] Compiling SwiftFu Foundation+SwiftFu.swift
[35/36] Compiling SwiftFu BinaryFloatingPoint+.swift
[36/36] Emitting module SwiftFu
error: emit-module command failed with exit code 1 (use -v to see invocation)
[37/46] Emitting module Observation
<unknown>:0: error: circular dependency between modules 'Observation' and 'Foundation'
[38/46] Compiling Observation ObservedValue.swift
<unknown>:0: error: circular dependency between modules 'Observation' and 'Foundation'
Fetching https://github.com/0xLeif/Observation
Fetching https://github.com/0xLet/DataObject.git
[1/61] Fetching observation
[62/154] Fetching observation, dataobject
Fetched https://github.com/0xLeif/Observation from cache (0.74s)
Fetched https://github.com/0xLet/DataObject.git from cache (0.74s)
Computing version for https://github.com/0xLeif/Observation
Computed https://github.com/0xLeif/Observation at 0.0.2 (0.66s)
Fetching https://github.com/0xLeif/Chain
[1/119] Fetching chain
Fetched https://github.com/0xLeif/Chain from cache (0.76s)
Computing version for https://github.com/0xLeif/Chain
Computed https://github.com/0xLeif/Chain at 0.3.0 (0.65s)
Fetching https://github.com/0xLeif/E.num
[1/130] Fetching e.num
Fetched https://github.com/0xLeif/E.num from cache (0.76s)
Computing version for https://github.com/0xLeif/E.num
Computed https://github.com/0xLeif/E.num at 0.3.0 (0.66s)
Computing version for https://github.com/0xLet/DataObject.git
Computed https://github.com/0xLet/DataObject.git at 1.1.1 (0.64s)
Fetching https://github.com/0xLet/WTV
Fetching https://github.com/0xLet/SURL
Fetching https://github.com/0xLet/SwiftFu
[1/45] Fetching surl
[46/97] Fetching surl, wtv
[98/246] Fetching surl, wtv, swiftfu
Fetched https://github.com/0xLet/SURL from cache (0.75s)
Fetched https://github.com/0xLet/WTV from cache (0.75s)
Fetched https://github.com/0xLet/SwiftFu from cache (0.77s)
Computing version for https://github.com/0xLet/SwiftFu
Computed https://github.com/0xLet/SwiftFu at 1.0.1 (0.65s)
Computing version for https://github.com/0xLet/WTV
Computed https://github.com/0xLet/WTV at 0.1.1 (0.66s)
Computing version for https://github.com/0xLet/SURL
Computed https://github.com/0xLet/SURL at 0.1.1 (0.63s)
Creating working copy for https://github.com/0xLeif/Observation
Working copy of https://github.com/0xLeif/Observation resolved at 0.0.2
Creating working copy for https://github.com/0xLet/DataObject.git
Working copy of https://github.com/0xLet/DataObject.git resolved at 1.1.1
Creating working copy for https://github.com/0xLeif/E.num
Working copy of https://github.com/0xLeif/E.num resolved at 0.3.0
Creating working copy for https://github.com/0xLet/SURL
Working copy of https://github.com/0xLet/SURL resolved at 0.1.1
Creating working copy for https://github.com/0xLeif/Chain
Working copy of https://github.com/0xLeif/Chain resolved at 0.3.0
Creating working copy for https://github.com/0xLet/WTV
Working copy of https://github.com/0xLet/WTV resolved at 0.1.1
Creating working copy for https://github.com/0xLet/SwiftFu
Working copy of https://github.com/0xLet/SwiftFu resolved at 1.0.1
BUILD FAILURE 6.0 macosSpm
This is a staging environment. For live and up-to-date package information, visit swiftpackageindex.com.