Swift Package IndexBuild Information
Failed to build SwiftSlash, reference master (5dda27), with Swift 6.1 for Linux on 18 Oct 2026 07:40:58 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/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: master
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
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
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 master
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/tannerdsilva/SwiftSlash.git
https://github.com/tannerdsilva/SwiftSlash.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$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_types __cswiftslash_types.c
[11/27] Compiling __cswiftslash_threads __cswiftslash_threads.c
[12/27] Compiling __cswiftslash_eventtrigger __cswiftslash_eventtrigger.c
[13/27] Write swift-version-24593BA9C3E375BF.txt
[14/27] Compiling __cswiftslash_posix_helpers __cswiftslash_posix_helpers.c
[16/34] 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
[17/34] 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 0x0000616dba29eca8
1 swift-frontend 0x0000616dba29ca7e
2 swift-frontend 0x0000616dba29f348
3 libc.so.6 0x00007dfd8bf93330
4 swift-frontend 0x0000616db4725a94
5 swift-frontend 0x0000616db47d93ca
6 swift-frontend 0x0000616db47d6445
7 swift-frontend 0x0000616db47d5a79
8 swift-frontend 0x0000616db47d4802
9 swift-frontend 0x0000616db47d5a79
10 swift-frontend 0x0000616db47d411d
11 swift-frontend 0x0000616db476a8d4
12 swift-frontend 0x0000616db46fa720
13 swift-frontend 0x0000616db46fb201
14 swift-frontend 0x0000616db46f8d18
15 swift-frontend 0x0000616db47e8342
16 swift-frontend 0x0000616db47e8182
17 swift-frontend 0x0000616db47e80b8
18 swift-frontend 0x0000616db46fdb83
19 swift-frontend 0x0000616db46fe2c0
20 swift-frontend 0x0000616db47d3a84
21 swift-frontend 0x0000616db47d39a9
22 swift-frontend 0x0000616db47024f7
23 swift-frontend 0x0000616db46fea22
24 swift-frontend 0x0000616db403095d
25 swift-frontend 0x0000616db40331fa
26 swift-frontend 0x0000616db40326d3
27 swift-frontend 0x0000616db3e19869
28 libc.so.6 0x00007dfd8bf781ca
29 libc.so.6 0x00007dfd8bf7828b __libc_start_main + 139
30 swift-frontend 0x0000616db3e189b5
*** Signal 11: Backtracing from 0x616db4725a94... done ***
*** Program crashed: Bad pointer dereference at 0x00006171bba2e690 ***
Thread 0 "swift-frontend" crashed:
0 0x0000616db4725a94 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 0x00007ffe3497c1a8 e8 d6 97 34 fe 7f 00 00 40 ec 6c f8 6d 61 00 00 èÖ·4þ···@ìløma··
rcx 0x0000616dbba2e694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x0000616dbba7aa88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x0000616df8530618 f0 aa 08 f8 6d 61 00 00 18 04 00 08 00 00 00 00 ðª·øma··········
rdi 0x0000616df85306d0 f0 aa 08 f8 6d 61 00 00 18 02 00 08 00 00 00 00 ðª·øma··········
rbp 0x0000616df86d1110 32 01 54 f8 6d 61 00 00 00 00 00 00 00 00 00 00 2·Tøma··········
rsp 0x00007ffe3497ad90 20 ae 97 34 fe 7f 00 00 ac ae 97 34 09 00 00 00 ®·4þ···¬®·4····
r8 0x0000616df86931c0 30 4f 19 bb 6d 61 00 00 d0 06 53 f8 6d 61 00 00 0O·»ma··Ð·Søma··
r9 0x0000616df86cf2b0 30 4f 19 bb 6d 61 00 00 18 06 53 f8 6d 61 00 00 0O·»ma····Søma··
r10 0x00007ffe3497b0e0 c8 b0 97 34 fe 7f 00 00 a8 c1 97 34 fe 7f 00 00 È°·4þ···¨Á·4þ···
r11 0x0000616df86d1110 32 01 54 f8 6d 61 00 00 00 00 00 00 00 00 00 00 2·Tøma··········
r12 0x0000000000000001 1
r13 0x0000616df86cf2b0 30 4f 19 bb 6d 61 00 00 18 06 53 f8 6d 61 00 00 0O·»ma····Søma··
r14 0x00007ffe3497af28 18 06 53 f8 6d 61 00 00 b0 af 97 34 fe 7f 00 00 ··Søma··°¯·4þ···
r15 0x0000616df85306d0 f0 aa 08 f8 6d 61 00 00 18 02 00 08 00 00 00 00 ðª·øma··········
rip 0x0000616db4725a94 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):
0x0000616db354a000–0x0000616dbb162940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.29s
<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-54344843-1":/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 0x00005d7020083ca8
1 swift-frontend 0x00005d7020081a7e
2 swift-frontend 0x00005d7020084348
3 libc.so.6 0x0000776bdc8d0330
4 swift-frontend 0x00005d701a50aa94
5 swift-frontend 0x00005d701a5be3ca
6 swift-frontend 0x00005d701a5bb445
7 swift-frontend 0x00005d701a5baa79
8 swift-frontend 0x00005d701a5b9802
9 swift-frontend 0x00005d701a5baa79
10 swift-frontend 0x00005d701a5b911d
11 swift-frontend 0x00005d701a54f8d4
12 swift-frontend 0x00005d701a4df720
13 swift-frontend 0x00005d701a4e0201
14 swift-frontend 0x00005d701a4ddd18
15 swift-frontend 0x00005d701a5cd342
16 swift-frontend 0x00005d701a5cd182
17 swift-frontend 0x00005d701a5cd0b8
18 swift-frontend 0x00005d701a4e2b83
19 swift-frontend 0x00005d701a4e32c0
20 swift-frontend 0x00005d701a5b8a84
21 swift-frontend 0x00005d701a5b89a9
22 swift-frontend 0x00005d701a4e74f7
23 swift-frontend 0x00005d701a4e3a22
24 swift-frontend 0x00005d7019e1595d
25 swift-frontend 0x00005d7019e181fa
26 swift-frontend 0x00005d7019e176d3
27 swift-frontend 0x00005d7019bfe869
28 libc.so.6 0x0000776bdc8b51ca
29 libc.so.6 0x0000776bdc8b528b __libc_start_main + 139
30 swift-frontend 0x00005d7019bfd9b5
*** Signal 11: Backtracing from 0x5d701a50aa94... done ***
*** Program crashed: Bad pointer dereference at 0x00005d7421813690 ***
Thread 0 "swift-frontend" crashed:
0 0x00005d701a50aa94 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 0x00007fff57f68038 78 95 f6 57 ff 7f 00 00 00 de b2 5c 70 5d 00 00 x·öWÿ····Þ²\p]··
rcx 0x00005d7021813694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x00005d702185fa88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x00005d705c99ca58 60 a3 51 5c 70 5d 00 00 18 04 00 08 00 00 00 00 `£Q\p]··········
rdi 0x00005d705c99cb10 60 a3 51 5c 70 5d 00 00 18 02 00 08 00 00 00 00 `£Q\p]··········
rbp 0x00005d705cb32140 b2 bf 9a 5c 70 5d 00 00 00 00 00 00 00 00 00 00 ²¿·\p]··········
rsp 0x00007fff57f66c20 b0 6c f6 57 ff 7f 00 00 3c 6d f6 57 09 00 00 00 °löWÿ···<möW····
r8 0x00005d705cafac30 30 9f f7 20 70 5d 00 00 10 cb 99 5c 70 5d 00 00 0·÷ p]···Ë·\p]··
r9 0x00005d705cb2eed0 30 9f f7 20 70 5d 00 00 58 ca 99 5c 70 5d 00 00 0·÷ p]··XÊ·\p]··
r10 0x00007fff57f66f70 58 6f f6 57 ff 7f 00 00 38 80 f6 57 ff 7f 00 00 XoöWÿ···8·öWÿ···
r11 0x00005d705cb32140 b2 bf 9a 5c 70 5d 00 00 00 00 00 00 00 00 00 00 ²¿·\p]··········
r12 0x0000000000000001 1
r13 0x00005d705cb2eed0 30 9f f7 20 70 5d 00 00 58 ca 99 5c 70 5d 00 00 0·÷ p]··XÊ·\p]··
r14 0x00007fff57f66db8 58 ca 99 5c 70 5d 00 00 40 6e f6 57 ff 7f 00 00 XÊ·\p]··@nöWÿ···
r15 0x00005d705c99cb10 60 a3 51 5c 70 5d 00 00 18 02 00 08 00 00 00 00 `£Q\p]··········
rip 0x00005d701a50aa94 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):
0x00005d701932f000–0x00005d7020f47940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.16s
[3/20] Emitting module SwiftSlashFHHelpers
BUILD FAILURE 6.1 linux