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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 ApiCore 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/liveui/apicore.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/liveui/apicore
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at c3893b1 updating dependencies
Cloned https://github.com/liveui/apicore.git
Revision (git rev-parse @):
c3893b19ba86a1dea2f1a29e88a2388781cb5277
SUCCESS checkout https://github.com/liveui/apicore.git at master
========================================
Build
========================================
Selected platform:         macosSpm
Swift version:             6.0
Building package at path:  $workDir
https://github.com/liveui/apicore.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...
[0/77] Write sources
[53/77] Compiling CNIOZlib empty.c
[53/77] Compiling CNIOLinux ifaddrs-android.c
[53/77] Compiling CNIOLinux shim.c
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/shims.c:16:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/include/c_nio_openssl.h:17:10: fatal error: 'openssl/conf.h' file not found
   17 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
1 error generated.
[56/77] Compiling CNIOOpenSSL shims.c
[56/77] Compiling CCryptoOpenSSL shim.c
[56/77] Compiling CBcrypt bcrypt.c
[56/77] Compiling CBcrypt blf.c
In file included from /Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/helpers.c:14:
/Users/admin/builder/spi-builder-workspace/.build/checkouts/swift-nio-ssl/Sources/CNIOOpenSSL/include/c_nio_openssl.h:17:10: fatal error: 'openssl/conf.h' file not found
   17 | #include <openssl/conf.h>
      |          ^~~~~~~~~~~~~~~~
[56/77] Compiling c-atomics.c
[56/77] Compiling CNIOOpenSSL helpers.c
[56/77] Compiling CNIODarwin shim.c
[56/77] Compiling CNIOSHA1 c_nio_sha1.c
[56/77] Compiling CNIOHTTPParser c_nio_http_parser.c
[56/77] Write swift-version-6F35C1178C84523A.txt
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warning: 'swift-nio-ssl-support': ignoring declared target(s) 'swift-nio-ssl-support' in the system package
warning: 'swift-nio-zlib-support': ignoring declared target(s) 'swift-nio-zlib-support' in the system package
warning: 'bluesslservice': 'bluesslservice' dependency on 'https://github.com/Kitura/BlueSocket.git' conflicts with dependency on 'https://github.com/IBM-Swift/BlueSocket.git' which has the same identity 'bluesocket'. this will be escalated to an error in future versions of SwiftPM.
warning: failed to retrieve search paths with pkg-config; maybe pkg-config is not installed
warning: couldn't find pc file for gdlib
warning: you may be able to install openssl using your system-packager:
    brew install libressl
warning: couldn't find pc file for zlib
BUILD FAILURE 6.0 macosSpm
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