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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 ASAPExecution, reference 1.0.0-beta.2 (895bc1), with Swift 6.1 for Linux on 30 Apr 2025 06:47:37 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Frizlab/ASAPExecution.git
Reference: 1.0.0-beta.2
Initialized empty Git repository in /host/spi-builder-workspace/.git/
hint: Using 'master' as the name for the initial branch. This default branch name
hint: is subject to change. To configure the initial branch name to use in all
hint: of your new repositories, which will suppress this warning, call:
hint:
hint: 	git config --global init.defaultBranch <name>
hint:
hint: Names commonly chosen instead of 'master' are 'main', 'trunk' and
hint: 'development'. The just-created branch can be renamed via this command:
hint:
hint: 	git branch -m <name>
From https://github.com/Frizlab/ASAPExecution
 * tag               1.0.0-beta.2 -> FETCH_HEAD
HEAD is now at 895bc14 Add “until” ASAP execution
Cloned https://github.com/Frizlab/ASAPExecution.git
Revision (git rev-parse @):
895bc14949cac3ee70e26a10fd5d02aa75aeb7af
SUCCESS checkout https://github.com/Frizlab/ASAPExecution.git at 1.0.0-beta.2
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Frizlab/ASAPExecution.git
https://github.com/Frizlab/ASAPExecution.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "runloopthread",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.1.0",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/happn-app/RunLoopThread.git"
    }
  ],
  "manifest_display_name" : "ASAPExecution",
  "name" : "ASAPExecution",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "10.12"
    },
    {
      "name" : "ios",
      "version" : "10.0"
    },
    {
      "name" : "tvos",
      "version" : "10.0"
    },
    {
      "name" : "watchos",
      "version" : "3.0"
    }
  ],
  "products" : [
    {
      "name" : "ASAPExecution",
      "targets" : [
        "ASAPExecution"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "ASAPExecutionTests",
      "module_type" : "SwiftTarget",
      "name" : "ASAPExecutionTests",
      "path" : "Tests/ASAPExecutionTests",
      "product_dependencies" : [
        "RunLoopThread"
      ],
      "sources" : [
        "ASAPExecutionUntilTests.swift",
        "ASAPExecutionWhenTests.swift"
      ],
      "target_dependencies" : [
        "ASAPExecution"
      ],
      "type" : "test"
    },
    {
      "c99name" : "ASAPExecution",
      "module_type" : "SwiftTarget",
      "name" : "ASAPExecution",
      "path" : "Sources/ASAPExecution",
      "product_memberships" : [
        "ASAPExecution"
      ],
      "sources" : [
        "ASAPExecution.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "5.5"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats -Xswiftc -strict-concurrency=complete -Xswiftc -enable-upcoming-feature -Xswiftc StrictConcurrency -Xswiftc -enable-upcoming-feature -Xswiftc DisableOutwardActorInference -Xswiftc -enable-upcoming-feature -Xswiftc GlobalActorIsolatedTypesUsability -Xswiftc -enable-upcoming-feature -Xswiftc InferSendableFromCaptures 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/happn-app/RunLoopThread.git
[1/67] Fetching runloopthread
Fetched https://github.com/happn-app/RunLoopThread.git from cache (0.19s)
Computing version for https://github.com/happn-app/RunLoopThread.git
error: Invalid manifest (compiled with: ["/usr/bin/swiftc", "-vfsoverlay", "/tmp/TemporaryDirectory.ty33t9/vfs.yaml", "-L", "/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/usr/lib/swift/pm/ManifestAPI", "-swift-version", "5", "-I", "/usr/lib/swift/pm/ManifestAPI", "-package-description-version", "5.1.0", "/Package.swift", "-o", "/tmp/TemporaryDirectory.xVkXgh/runloopthread-manifest"])
/Package.swift:9:15: warning: will never be executed
 4 |
 5 | #if !_runtime(_ObjC)
 6 | 	fatalError("Unsupported OS")
   |  `- note: a call to a never-returning function
 7 | #endif
 8 |
 9 | let package = Package(
   |               `- warning: will never be executed
10 | 	name: "RunLoopThread",
11 | 	products: [main/Package.swift:6: Fatal error: Unsupported OS
*** Signal 4: Backtracing from 0x7f2f79f51788... done ***
*** Program crashed: Illegal instruction at 0x00007f2f79f51788 ***
Thread 0 "runloopthread-m" crashed:
0      0x00007f2f79f51788 _assertionFailure(_:_:file:line:flags:) + 264 in libswiftCore.so
1 [ra] 0x000055b4431eecc3 main + 98 in runloopthread-manifest
Registers:
rax 0x0000000000000000  0
rdx 0x0000000000000002  2
rcx 0x0000000000000001  1
rbx 0x000000055b443cc2  23006035138
rsi 0x8000534f20646570  9223463636165748080
rdi 0x000055b443cb1010  01 00 01 00 01 00 00 00 00 00 00 00 00 00 00 00  ················
rbp 0x00007fff3b55a850  80 a8 55 3b ff 7f 00 00 c3 ec 1e 43 b4 55 00 00  ·¨U;ÿ···Ãì·C´U··
rsp 0x00007fff3b55a7e0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ················
 r8 0x000055b443cc2f00  c2 3c 44 5b 05 00 00 00 0a 7c 15 0e 70 dd e5 23  Â<D[·····|··pÝå#
 r9 0x00007fff3b55a4c0  46 61 74 61 6c 20 65 72 72 6f 72 3a 20 55 6e 73  Fatal error: Uns
r10 0x0000000000000000  0
r11 0x23e5dd700e157c0a  2586717034336582666
r12 0x00007fff3b55a998  3d be 55 3b ff 7f 00 00 73 be 55 3b ff 7f 00 00  =¾U;ÿ···s¾U;ÿ···
r13 0x000055b4431eec60  55 48 89 e5 48 83 ec 20 90 48 8d 3d 9f 00 00 00  UH·åH·ì ·H·=····
r14 0x000055b4431f0ce0  03 00 00 00 00 00 00 00 e8 0f 1f 43 b4 55 00 00  ········è··C´U··
r15 0x00007f2f7a3bf040  e0 02 3c 7a 2f 7f 00 00 16 00 00 00 00 00 00 00  à·<z/···········
rip 0x00007f2f79f51788  0f 0b 48 8d 35 4f 5c fb ff 48 8d 55 a0 45 31 e4  ··H·5O\ûÿH·U E1ä
rflags 0x0000000000010202
cs 0x0033  fs 0x0000  gs 0x0000
Images (19 omitted):
0x000055b4431ee000–0x000055b4431eee00 d5fc55e96e696cd8e0c561d2f2dc38d547911a2b runloopthread-manifest /tmp/TemporaryDirectory.xVkXgh/runloopthread-manifest
0x00007f2f79c75000–0x00007f2f7a2038c0 e0daad81442ed488d8b83fd10c171fcb90baba85 libswiftCore.so        /usr/lib/swift/linux/libswiftCore.so
Backtrace took 0.28s in https://github.com/happn-app/RunLoopThread.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Updating https://github.com/happn-app/RunLoopThread.git
Updated https://github.com/happn-app/RunLoopThread.git (0.15s)
Computing version for https://github.com/happn-app/RunLoopThread.git
error: Invalid manifest (compiled with: ["/usr/bin/swiftc", "-vfsoverlay", "/tmp/TemporaryDirectory.C3PgXd/vfs.yaml", "-L", "/usr/lib/swift/pm/ManifestAPI", "-lPackageDescription", "-Xlinker", "-rpath", "-Xlinker", "/usr/lib/swift/pm/ManifestAPI", "-swift-version", "5", "-I", "/usr/lib/swift/pm/ManifestAPI", "-package-description-version", "5.1.0", "/Package.swift", "-o", "/tmp/TemporaryDirectory.V7oKNR/runloopthread-manifest"])
/Package.swift:9:15: warning: will never be executed
 4 |
 5 | #if !_runtime(_ObjC)
 6 | 	fatalError("Unsupported OS")
   |  `- note: a call to a never-returning function
 7 | #endif
 8 |
 9 | let package = Package(
   |               `- warning: will never be executed
10 | 	name: "RunLoopThread",
11 | 	products: [main/Package.swift:6: Fatal error: Unsupported OS
*** Signal 4: Backtracing from 0x7fd935632788... done ***
*** Program crashed: Illegal instruction at 0x00007fd935632788 ***
Thread 0 "runloopthread-m" crashed:
0      0x00007fd935632788 _assertionFailure(_:_:file:line:flags:) + 264 in libswiftCore.so
1 [ra] 0x00005650960eacc3 main + 98 in runloopthread-manifest
Registers:
rax 0x0000000000000000  0
rdx 0x0000000000000002  2
rcx 0x0000000000000001  1
rbx 0x0000000565096fd3  23169953747
rsi 0x8000534f20646570  9223463636165748080
rdi 0x0000565096fc2010  01 00 01 00 01 00 00 00 00 00 00 00 00 00 00 00  ················
rbp 0x00007ffe7a881a30  60 1a 88 7a fe 7f 00 00 c3 ac 0e 96 50 56 00 00  `··zþ···Ã¬··PV··
rsp 0x00007ffe7a8819c0  00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ················
 r8 0x0000565096fd3f00  d3 6f 09 65 05 00 00 00 f1 b7 c4 26 8b 65 db f1  Óo·e····ñ·Ä&·eÛñ
 r9 0x00007ffe7a8816a0  46 61 74 61 6c 20 65 72 72 6f 72 3a 20 55 6e 73  Fatal error: Uns
r10 0x0000000000000000  0
r11 0xf1db658b26c4b7f1  17427634831365552113
r12 0x00007ffe7a881b78  3d 1e 88 7a fe 7f 00 00 73 1e 88 7a fe 7f 00 00  =··zþ···s··zþ···
r13 0x00005650960eac60  55 48 89 e5 48 83 ec 20 90 48 8d 3d 9f 00 00 00  UH·åH·ì ·H·=····
r14 0x00005650960ecce0  03 00 00 00 00 00 00 00 e8 cf 0e 96 50 56 00 00  ········èÏ··PV··
r15 0x00007fd935aa0040  e0 12 aa 35 d9 7f 00 00 16 00 00 00 00 00 00 00  à·ª5Ù···········
rip 0x00007fd935632788  0f 0b 48 8d 35 4f 5c fb ff 48 8d 55 a0 45 31 e4  ··H·5O\ûÿH·U E1ä
rflags 0x0000000000010206  PF
cs 0x0033  fs 0x0000  gs 0x0000
Images (19 omitted):
0x00005650960ea000–0x00005650960eae00 8e56227ec7e526608c60bc5df6e22fbed84b7857 runloopthread-manifest /tmp/TemporaryDirectory.V7oKNR/runloopthread-manifest
0x00007fd935356000–0x00007fd9358e48c0 e0daad81442ed488d8b83fd10c171fcb90baba85 libswiftCore.so        /usr/lib/swift/linux/libswiftCore.so
Backtrace took 0.02s in https://github.com/happn-app/RunLoopThread.git
BUILD FAILURE 6.1 linux