Swift Package IndexBuild Information
Failed to build SwiftSlash, reference 6.0.0 (5dda27), with Swift 6.1 for Linux on 18 Oct 2026 07:44:03 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-53886768-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:linux-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.3
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tannerdsilva/SwiftSlash.git
Reference: 6.0.0
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/tannerdsilva/SwiftSlash
* tag 6.0.0 -> FETCH_HEAD
HEAD is now at 5dda27d feat: process-group placement as part of the launch contract (6.0.0)
Cloned https://github.com/tannerdsilva/SwiftSlash.git
Revision (git rev-parse @):
5dda27d1ebae38ce42e9440f3580cbc778c8af8b
SUCCESS checkout https://github.com/tannerdsilva/SwiftSlash.git at 6.0.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/tannerdsilva/SwiftSlash.git
https://github.com/tannerdsilva/SwiftSlash.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886768-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:linux-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
linux-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:2ccba1a98249c90438a7c8a4888192d345af17f27af8250de02cec002ad06687
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:linux-6.1-latest
Building for debugging...
[0/27] Write sources
[10/27] Compiling __cswiftslash_eventtrigger __cswiftslash_eventtrigger.c
[11/27] Compiling __cswiftslash_threads __cswiftslash_threads.c
[12/27] Compiling __cswiftslash_posix_helpers __cswiftslash_posix_helpers.c
[13/27] Compiling __cswiftslash_types __cswiftslash_types.c
[14/27] Write swift-version-24593BA9C3E375BF.txt
[16/34] Emitting module SwiftSlashOneShotLatch
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
error: compile command failed due to signal 11 (use -v to see invocation)
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0. Program arguments: /usr/bin/swift-frontend -frontend -c -primary-file /host/spi-builder-workspace/Sources/SwiftSlashOneShotLatch/OneShotLatch.swift -emit-dependencies-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/SwiftSlashOneShotLatch.build/OneShotLatch.d -emit-reference-dependencies-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/SwiftSlashOneShotLatch.build/OneShotLatch.swiftdeps -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Modules -enable-testing -g -debug-info-format=dwarf -dwarf-version=4 -module-cache-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/ModuleCache -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -stats-output-dir .stats -enable-upcoming-feature StrictConcurrency -enable-upcoming-feature DisableOutwardActorInference -enable-upcoming-feature GlobalActorIsolatedTypesUsability -enable-upcoming-feature InferSendableFromCaptures -strict-concurrency=complete -empty-abi-descriptor -resource-dir /usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /host/spi-builder-workspace -Xcc -g -Xcc -fno-omit-frame-pointer -module-name SwiftSlashOneShotLatch -package-name spi_builder_workspace -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/SwiftSlashOneShotLatch.build/OneShotLatch.swift.o -index-store-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/index/store -index-system-modules
1. Swift version 6.1.3 (swift-6.1.3-RELEASE)
2. Compiling with the current language version
3. While evaluating request ASTLoweringRequest(Lowering AST to SIL for file "/host/spi-builder-workspace/Sources/SwiftSlashOneShotLatch/OneShotLatch.swift")
4. While silgen emitFunction SIL function "@$s22SwiftSlashOneShotLatch0cdE0C4CoreV4fireyyxnAC0cD17SemanticViolationVyx_GYKF".
for 'fire(_:)' (at /host/spi-builder-workspace/Sources/SwiftSlashOneShotLatch/OneShotLatch.swift:29:21)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 swift-frontend 0x00005f5267a10ca8
1 swift-frontend 0x00005f5267a0ea7e
2 swift-frontend 0x00005f5267a11348
3 libc.so.6 0x000077498664c330
4 swift-frontend 0x00005f5261e97a94
5 swift-frontend 0x00005f5261f4b3ca
6 swift-frontend 0x00005f5261f48445
7 swift-frontend 0x00005f5261f47a79
8 swift-frontend 0x00005f5261f46802
9 swift-frontend 0x00005f5261f47a79
10 swift-frontend 0x00005f5261f4611d
11 swift-frontend 0x00005f5261edc8d4
12 swift-frontend 0x00005f5261e6c720
13 swift-frontend 0x00005f5261e6d201
14 swift-frontend 0x00005f5261e6ad18
15 swift-frontend 0x00005f5261f5a342
16 swift-frontend 0x00005f5261f5a182
17 swift-frontend 0x00005f5261f5a0b8
18 swift-frontend 0x00005f5261e6fb83
19 swift-frontend 0x00005f5261e702c0
20 swift-frontend 0x00005f5261f45a84
21 swift-frontend 0x00005f5261f459a9
22 swift-frontend 0x00005f5261e744f7
23 swift-frontend 0x00005f5261e70a22
24 swift-frontend 0x00005f52617a295d
25 swift-frontend 0x00005f52617a51fa
26 swift-frontend 0x00005f52617a46d3
27 swift-frontend 0x00005f526158b869
28 libc.so.6 0x00007749866311ca
29 libc.so.6 0x000077498663128b __libc_start_main + 139
30 swift-frontend 0x00005f526158a9b5
*** Signal 11: Backtracing from 0x5f5261e97a94... done ***
*** Program crashed: Bad pointer dereference at 0x00005f56691a0690 ***
Thread 0 "swift-frontend" crashed:
0 0x00005f5261e97a94 swift::Lowering::SILGenFunction::emitExistentialErasure(swift::SILLocation, swift::CanType, swift::Lowering::TypeLowering const&, swift::Lowering::TypeLowering const&, llvm::ArrayRef<swift::ProtocolConformanceRef>, swift::Lowering::SGFContext, llvm::function_ref<swift::Lowering::ManagedValue (swift::Lowering::SGFContext)>, bool) + 228 in swift-frontend
Registers:
rax 0x00000000ffffffff 4294967295
rdx 0x00007ffc60285b98 d8 70 28 60 fc 7f 00 00 f0 9c 98 9e 52 5f 00 00 Øp(`ü···ð···R_··
rcx 0x00005f52691a0694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x00005f52691eca88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x00005f529e7fad70 f0 da 37 9e 52 5f 00 00 18 04 00 08 00 00 00 00 ðÚ7·R_··········
rdi 0x00005f529e7fae28 f0 da 37 9e 52 5f 00 00 18 02 00 08 00 00 00 00 ðÚ7·R_··········
rbp 0x00005f529e988590 9a 9a 80 9e 52 5f 00 00 00 00 00 00 00 00 00 00 ····R_··········
rsp 0x00007ffc60284780 10 48 28 60 fc 7f 00 00 9c 48 28 60 09 00 00 00 ·H(`ü····H(`····
r8 0x00005f529e91af70 30 6f 90 68 52 5f 00 00 28 ae 7f 9e 52 5f 00 00 0o·hR_··(®··R_··
r9 0x00005f529e98a360 30 6f 90 68 52 5f 00 00 70 ad 7f 9e 52 5f 00 00 0o·hR_··p··R_··
r10 0x00007ffc60284ad0 b8 4a 28 60 fc 7f 00 00 98 5b 28 60 fc 7f 00 00 ¸J(`ü····[(`ü···
r11 0x00005f529e988590 9a 9a 80 9e 52 5f 00 00 00 00 00 00 00 00 00 00 ····R_··········
r12 0x0000000000000001 1
r13 0x00005f529e98a360 30 6f 90 68 52 5f 00 00 70 ad 7f 9e 52 5f 00 00 0o·hR_··p··R_··
r14 0x00007ffc60284918 70 ad 7f 9e 52 5f 00 00 a0 49 28 60 fc 7f 00 00 p··R_·· I(`ü···
r15 0x00005f529e7fae28 f0 da 37 9e 52 5f 00 00 18 02 00 08 00 00 00 00 ðÚ7·R_··········
rip 0x00005f5261e97a94 48 63 04 81 48 01 c8 ff e0 48 8b 03 48 8b 38 e8 Hc··H·ÈÿàH··H·8è
rflags 0x0000000000010296 SF AF PF
cs 0x0033 fs 0x0000 gs 0x0000
Images (29 omitted):
0x00005f5260cbc000–0x00005f52688d4940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.16s
[17/34] Emitting module SwiftSlashFHHelpers
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-53886768-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:linux-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
linux-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:2ccba1a98249c90438a7c8a4888192d345af17f27af8250de02cec002ad06687
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:linux-6.1-latest
[0/1] Planning build
Building for debugging...
[0/13] Write swift-version-24593BA9C3E375BF.txt
[2/20] Emitting module SwiftSlashOneShotLatch
error: compile command failed due to signal 11 (use -v to see invocation)
Please submit a bug report (https://swift.org/contributing/#reporting-bugs) and include the crash backtrace.
Stack dump:
0. Program arguments: /usr/bin/swift-frontend -frontend -c -primary-file /host/spi-builder-workspace/Sources/SwiftSlashOneShotLatch/OneShotLatch.swift -emit-dependencies-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/SwiftSlashOneShotLatch.build/OneShotLatch.d -emit-reference-dependencies-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/SwiftSlashOneShotLatch.build/OneShotLatch.swiftdeps -target x86_64-unknown-linux-gnu -disable-objc-interop -I /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/Modules -enable-testing -g -debug-info-format=dwarf -dwarf-version=4 -module-cache-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/ModuleCache -swift-version 6 -Onone -D SWIFT_PACKAGE -D DEBUG -empty-abi-descriptor -resource-dir /usr/lib/swift -enable-anonymous-context-mangled-names -file-compilation-dir /host/spi-builder-workspace -Xcc -g -Xcc -fno-omit-frame-pointer -module-name SwiftSlashOneShotLatch -package-name spi_builder_workspace -in-process-plugin-server-path /usr/lib/swift/host/libSwiftInProcPluginServer.so -plugin-path /usr/lib/swift/host/plugins -plugin-path /usr/local/lib/swift/host/plugins -parse-as-library -o /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/SwiftSlashOneShotLatch.build/OneShotLatch.swift.o -index-store-path /host/spi-builder-workspace/.build/x86_64-unknown-linux-gnu/debug/index/store -index-system-modules
1. Swift version 6.1.3 (swift-6.1.3-RELEASE)
2. Compiling with the current language version
3. While evaluating request ASTLoweringRequest(Lowering AST to SIL for file "/host/spi-builder-workspace/Sources/SwiftSlashOneShotLatch/OneShotLatch.swift")
4. While silgen emitFunction SIL function "@$s22SwiftSlashOneShotLatch0cdE0C4CoreV4fireyyxnAC0cD17SemanticViolationVyx_GYKF".
for 'fire(_:)' (at /host/spi-builder-workspace/Sources/SwiftSlashOneShotLatch/OneShotLatch.swift:29:21)
Stack dump without symbol names (ensure you have llvm-symbolizer in your PATH or set the environment var `LLVM_SYMBOLIZER_PATH` to point to it):
0 swift-frontend 0x00005cfa52979ca8
1 swift-frontend 0x00005cfa52977a7e
2 swift-frontend 0x00005cfa5297a348
3 libc.so.6 0x0000766fd60f4330
4 swift-frontend 0x00005cfa4ce00a94
5 swift-frontend 0x00005cfa4ceb43ca
6 swift-frontend 0x00005cfa4ceb1445
7 swift-frontend 0x00005cfa4ceb0a79
8 swift-frontend 0x00005cfa4ceaf802
9 swift-frontend 0x00005cfa4ceb0a79
10 swift-frontend 0x00005cfa4ceaf11d
11 swift-frontend 0x00005cfa4ce458d4
12 swift-frontend 0x00005cfa4cdd5720
13 swift-frontend 0x00005cfa4cdd6201
14 swift-frontend 0x00005cfa4cdd3d18
15 swift-frontend 0x00005cfa4cec3342
16 swift-frontend 0x00005cfa4cec3182
17 swift-frontend 0x00005cfa4cec30b8
18 swift-frontend 0x00005cfa4cdd8b83
19 swift-frontend 0x00005cfa4cdd92c0
20 swift-frontend 0x00005cfa4ceaea84
21 swift-frontend 0x00005cfa4ceae9a9
22 swift-frontend 0x00005cfa4cddd4f7
23 swift-frontend 0x00005cfa4cdd9a22
24 swift-frontend 0x00005cfa4c70b95d
25 swift-frontend 0x00005cfa4c70e1fa
26 swift-frontend 0x00005cfa4c70d6d3
27 swift-frontend 0x00005cfa4c4f4869
28 libc.so.6 0x0000766fd60d91ca
29 libc.so.6 0x0000766fd60d928b __libc_start_main + 139
30 swift-frontend 0x00005cfa4c4f39b5
*** Signal 11: Backtracing from 0x5cfa4ce00a94... done ***
*** Program crashed: Bad pointer dereference at 0x00005cfe54109690 ***
Thread 0 "swift-frontend" crashed:
0 0x00005cfa4ce00a94 swift::Lowering::SILGenFunction::emitExistentialErasure(swift::SILLocation, swift::CanType, swift::Lowering::TypeLowering const&, swift::Lowering::TypeLowering const&, llvm::ArrayRef<swift::ProtocolConformanceRef>, swift::Lowering::SGFContext, llvm::function_ref<swift::Lowering::ManagedValue (swift::Lowering::SGFContext)>, bool) + 228 in swift-frontend
Registers:
rax 0x00000000ffffffff 4294967295
rdx 0x00007fff552ac468 a8 d9 2a 55 ff 7f 00 00 50 c6 17 8b fa 5c 00 00 ¨Ù*Uÿ···PÆ··ú\··
rcx 0x00005cfa54109694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x00005cfa54155a88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x00005cfa8afe0ac8 60 d3 b3 8a fa 5c 00 00 18 04 00 08 00 00 00 00 `Ó³·ú\··········
rdi 0x00005cfa8afe0b80 60 d3 b3 8a fa 5c 00 00 18 02 00 08 00 00 00 00 `Ó³·ú\··········
rbp 0x00005cfa8b17eb20 f2 04 ff 8a fa 5c 00 00 00 00 00 00 00 00 00 00 ò·ÿ·ú\··········
rsp 0x00007fff552ab050 e0 b0 2a 55 ff 7f 00 00 6c b1 2a 55 09 00 00 00 à°*Uÿ···l±*U····
r8 0x00005cfa8b13e5e0 30 ff 86 53 fa 5c 00 00 80 0b fe 8a fa 5c 00 00 0ÿ·Sú\····þ·ú\··
r9 0x00005cfa8b17ccc0 30 ff 86 53 fa 5c 00 00 c8 0a fe 8a fa 5c 00 00 0ÿ·Sú\··È·þ·ú\··
r10 0x00007fff552ab3a0 88 b3 2a 55 ff 7f 00 00 68 c4 2a 55 ff 7f 00 00 ·³*Uÿ···hÄ*Uÿ···
r11 0x00005cfa8b17eb20 f2 04 ff 8a fa 5c 00 00 00 00 00 00 00 00 00 00 ò·ÿ·ú\··········
r12 0x0000000000000001 1
r13 0x00005cfa8b17ccc0 30 ff 86 53 fa 5c 00 00 c8 0a fe 8a fa 5c 00 00 0ÿ·Sú\··È·þ·ú\··
r14 0x00007fff552ab1e8 c8 0a fe 8a fa 5c 00 00 70 b2 2a 55 ff 7f 00 00 È·þ·ú\··p²*Uÿ···
r15 0x00005cfa8afe0b80 60 d3 b3 8a fa 5c 00 00 18 02 00 08 00 00 00 00 `Ó³·ú\··········
rip 0x00005cfa4ce00a94 48 63 04 81 48 01 c8 ff e0 48 8b 03 48 8b 38 e8 Hc··H·ÈÿàH··H·8è
rflags 0x0000000000010296 SF AF PF
cs 0x0033 fs 0x0000 gs 0x0000
Images (34 omitted):
0x00005cfa4bc25000–0x00005cfa5383d940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.16s
[3/20] Emitting module SwiftSlashFHHelpers
BUILD FAILURE 6.1 linux