Swift Package IndexBuild Information
Failed to build SwiftSlash, reference 5.0.2 (20b8aa), with Swift 6.1 for Linux on 8 Oct 2026 22:30:02 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344845-2":/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:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tannerdsilva/SwiftSlash.git
Reference: 5.0.2
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/tannerdsilva/SwiftSlash
* tag 5.0.2 -> FETCH_HEAD
HEAD is now at 20b8aae fix non-ascii argv truncation: strndup needs the utf8 byte length
Cloned https://github.com/tannerdsilva/SwiftSlash.git
Revision (git rev-parse @):
20b8aae8b528e86091b792daaa3d9760b0addddc
SUCCESS checkout https://github.com/tannerdsilva/SwiftSlash.git at 5.0.2
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/tannerdsilva/SwiftSlash.git
https://github.com/tannerdsilva/SwiftSlash.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344845-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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 saguaro1/spi-images
Digest: sha256:13a529f31207afe6597b18f20995fc2db944100da935819188c653038756cb1b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.1-latest
Building for debugging...
[0/14] Write sources
[9/14] Compiling __cswiftslash_types __cswiftslash_types.c
[10/14] Compiling __cswiftslash_eventtrigger __cswiftslash_eventtrigger.c
[11/14] Compiling __cswiftslash_posix_helpers __cswiftslash_posix_helpers.c
[12/14] Compiling __cswiftslash_threads __cswiftslash_threads.c
[13/14] Write swift-version-24593BA9C3E375BF.txt
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 0x0000576cf3514ca8
1 swift-frontend 0x0000576cf3512a7e
2 swift-frontend 0x0000576cf3515348
3 libc.so.6 0x0000790afc57d330
4 swift-frontend 0x0000576ced99ba94
5 swift-frontend 0x0000576ceda4f3ca
6 swift-frontend 0x0000576ceda4c445
7 swift-frontend 0x0000576ceda4ba79
8 swift-frontend 0x0000576ceda4a802
9 swift-frontend 0x0000576ceda4ba79
10 swift-frontend 0x0000576ceda4a11d
11 swift-frontend 0x0000576ced9e08d4
12 swift-frontend 0x0000576ced970720
13 swift-frontend 0x0000576ced971201
14 swift-frontend 0x0000576ced96ed18
15 swift-frontend 0x0000576ceda5e342
16 swift-frontend 0x0000576ceda5e182
17 swift-frontend 0x0000576ceda5e0b8
18 swift-frontend 0x0000576ced973b83
19 swift-frontend 0x0000576ced9742c0
20 swift-frontend 0x0000576ceda49a84
21 swift-frontend 0x0000576ceda499a9
22 swift-frontend 0x0000576ced9784f7
23 swift-frontend 0x0000576ced974a22
24 swift-frontend 0x0000576ced2a695d
25 swift-frontend 0x0000576ced2a91fa
26 swift-frontend 0x0000576ced2a86d3
27 swift-frontend 0x0000576ced08f869
28 libc.so.6 0x0000790afc5621ca
29 libc.so.6 0x0000790afc56228b __libc_start_main + 139
30 swift-frontend 0x0000576ced08e9b5
*** Signal 11: Backtracing from 0x576ced99ba94... done ***
*** Program crashed: Bad pointer dereference at 0x00005770f4ca4690 ***
Thread 0 "swift-frontend" crashed:
0 0x0000576ced99ba94 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 0x00007ffe9bdada88 c8 ef da 9b fe 7f 00 00 70 2c 82 30 6d 57 00 00 ÈïÚ·þ···p,·0mW··
rcx 0x0000576cf4ca4694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x0000576cf4cf0a88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x0000576d30692e18 f0 fa 21 30 6d 57 00 00 18 04 00 08 00 00 00 00 ðú!0mW··········
rdi 0x0000576d30692ed0 f0 fa 21 30 6d 57 00 00 18 02 00 08 00 00 00 00 ðú!0mW··········
rbp 0x0000576d30821510 c2 1b 6a 30 6d 57 00 00 00 00 00 00 00 00 00 00 ·j0mW··········
rsp 0x00007ffe9bdac670 00 c7 da 9b fe 7f 00 00 8c c7 da 9b 09 00 00 00 ·ÇÚ·þ····ÇÚ·····
r8 0x0000576d307c0410 30 af 40 f4 6c 57 00 00 d0 2e 69 30 6d 57 00 00 0¯@ôlW··Ð.i0mW··
r9 0x0000576d308232e0 30 af 40 f4 6c 57 00 00 18 2e 69 30 6d 57 00 00 0¯@ôlW···.i0mW··
r10 0x00007ffe9bdac9c0 a8 c9 da 9b fe 7f 00 00 88 da da 9b fe 7f 00 00 ¨ÉÚ·þ····ÚÚ·þ···
r11 0x0000576d30821510 c2 1b 6a 30 6d 57 00 00 00 00 00 00 00 00 00 00 ·j0mW··········
r12 0x0000000000000001 1
r13 0x0000576d308232e0 30 af 40 f4 6c 57 00 00 18 2e 69 30 6d 57 00 00 0¯@ôlW···.i0mW··
r14 0x00007ffe9bdac808 18 2e 69 30 6d 57 00 00 90 c8 da 9b fe 7f 00 00 ·.i0mW···ÈÚ·þ···
r15 0x0000576d30692ed0 f0 fa 21 30 6d 57 00 00 18 02 00 08 00 00 00 00 ðú!0mW··········
rip 0x0000576ced99ba94 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 (27 omitted):
0x0000576cec7c0000–0x0000576cf43d8940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.32s
<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-54344845-2":/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:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:13a529f31207afe6597b18f20995fc2db944100da935819188c653038756cb1b
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/8] 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 0x00005698d7439ca8
1 swift-frontend 0x00005698d7437a7e
2 swift-frontend 0x00005698d743a348
3 libc.so.6 0x00007d04fe9b3330
4 swift-frontend 0x00005698d18c0a94
5 swift-frontend 0x00005698d19743ca
6 swift-frontend 0x00005698d1971445
7 swift-frontend 0x00005698d1970a79
8 swift-frontend 0x00005698d196f802
9 swift-frontend 0x00005698d1970a79
10 swift-frontend 0x00005698d196f11d
11 swift-frontend 0x00005698d19058d4
12 swift-frontend 0x00005698d1895720
13 swift-frontend 0x00005698d1896201
14 swift-frontend 0x00005698d1893d18
15 swift-frontend 0x00005698d1983342
16 swift-frontend 0x00005698d1983182
17 swift-frontend 0x00005698d19830b8
18 swift-frontend 0x00005698d1898b83
19 swift-frontend 0x00005698d18992c0
20 swift-frontend 0x00005698d196ea84
21 swift-frontend 0x00005698d196e9a9
22 swift-frontend 0x00005698d189d4f7
23 swift-frontend 0x00005698d1899a22
24 swift-frontend 0x00005698d11cb95d
25 swift-frontend 0x00005698d11ce1fa
26 swift-frontend 0x00005698d11cd6d3
27 swift-frontend 0x00005698d0fb4869
28 libc.so.6 0x00007d04fe9981ca
29 libc.so.6 0x00007d04fe99828b __libc_start_main + 139
30 swift-frontend 0x00005698d0fb39b5
*** Signal 11: Backtracing from 0x5698d18c0a94... done ***
*** Program crashed: Bad pointer dereference at 0x0000569cd8bc9690 ***
Thread 0 "swift-frontend" crashed:
0 0x00005698d18c0a94 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 0x00007ffc11de9338 78 a8 de 11 fc 7f 00 00 c0 fe 59 17 99 56 00 00 x¨Þ·ü···ÀþY··V··
rcx 0x00005698d8bc9694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x00005698d8c15a88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x0000569917404ea8 60 13 f6 16 99 56 00 00 18 04 00 08 00 00 00 00 `·ö··V··········
rdi 0x0000569917404f60 60 13 f6 16 99 56 00 00 18 02 00 08 00 00 00 00 `·ö··V··········
rbp 0x00005699175a2390 c2 44 41 17 99 56 00 00 00 00 00 00 00 00 00 00 ÂDA··V··········
rsp 0x00007ffc11de7f20 b0 7f de 11 fc 7f 00 00 3c 80 de 11 09 00 00 00 °·Þ·ü···<·Þ·····
r8 0x0000569917531d50 30 ff 32 d8 98 56 00 00 60 4f 40 17 99 56 00 00 0ÿ2Ø·V··`O@··V··
r9 0x00005699175a0530 30 ff 32 d8 98 56 00 00 a8 4e 40 17 99 56 00 00 0ÿ2Ø·V··¨N@··V··
r10 0x00007ffc11de8270 58 82 de 11 fc 7f 00 00 38 93 de 11 fc 7f 00 00 X·Þ·ü···8·Þ·ü···
r11 0x00005699175a2390 c2 44 41 17 99 56 00 00 00 00 00 00 00 00 00 00 ÂDA··V··········
r12 0x0000000000000001 1
r13 0x00005699175a0530 30 ff 32 d8 98 56 00 00 a8 4e 40 17 99 56 00 00 0ÿ2Ø·V··¨N@··V··
r14 0x00007ffc11de80b8 a8 4e 40 17 99 56 00 00 40 81 de 11 fc 7f 00 00 ¨N@··V··@·Þ·ü···
r15 0x0000569917404f60 60 13 f6 16 99 56 00 00 18 02 00 08 00 00 00 00 `·ö··V··········
rip 0x00005698d18c0a94 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):
0x00005698d06e5000–0x00005698d82fd940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.16s
[3/8] Emitting module SwiftSlashFHHelpers
BUILD FAILURE 6.1 linux