Swift Package IndexBuild Information
Failed to build SwiftSlash, reference master (20b8aa), with Swift 6.1 for Linux on 8 Oct 2026 22:27:20 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/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: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: 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 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 master
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/tannerdsilva/SwiftSlash.git
https://github.com/tannerdsilva/SwiftSlash.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images: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)
[15/21] 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
<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 0x000061176e368ca8
1 swift-frontend 0x000061176e366a7e
2 swift-frontend 0x000061176e369348
3 libc.so.6 0x00007b10ff5b8330
4 swift-frontend 0x00006117687efa94
5 swift-frontend 0x00006117688a33ca
6 swift-frontend 0x00006117688a0445
7 swift-frontend 0x000061176889fa79
8 swift-frontend 0x000061176889e802
9 swift-frontend 0x000061176889fa79
10 swift-frontend 0x000061176889e11d
11 swift-frontend 0x00006117688348d4
12 swift-frontend 0x00006117687c4720
13 swift-frontend 0x00006117687c5201
14 swift-frontend 0x00006117687c2d18
15 swift-frontend 0x00006117688b2342
16 swift-frontend 0x00006117688b2182
17 swift-frontend 0x00006117688b20b8
18 swift-frontend 0x00006117687c7b83
19 swift-frontend 0x00006117687c82c0
20 swift-frontend 0x000061176889da84
21 swift-frontend 0x000061176889d9a9
22 swift-frontend 0x00006117687cc4f7
23 swift-frontend 0x00006117687c8a22
24 swift-frontend 0x00006117680fa95d
25 swift-frontend 0x00006117680fd1fa
26 swift-frontend 0x00006117680fc6d3
27 swift-frontend 0x0000611767ee3869
28 libc.so.6 0x00007b10ff59d1ca
29 libc.so.6 0x00007b10ff59d28b __libc_start_main + 139
30 swift-frontend 0x0000611767ee29b5
*** Signal 11: Backtracing from 0x6117687efa94... done ***
*** Program crashed: Bad pointer dereference at 0x0000611b6faf8690 ***
Thread 0 "swift-frontend" crashed:
0 0x00006117687efa94 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 0x00007fffea2cc6e8 28 dc 2c ea ff 7f 00 00 70 8f 14 b0 17 61 00 00 (Ü,êÿ···p··°·a··
rcx 0x000061176faf8694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x000061176fb44a88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x00006117affac618 f0 5a b0 af 17 61 00 00 18 04 00 08 00 00 00 00 ðZ°¯·a··········
rdi 0x00006117affac6d0 f0 5a b0 af 17 61 00 00 18 02 00 08 00 00 00 00 ðZ°¯·a··········
rbp 0x00006117b014b440 42 c1 fb af 17 61 00 00 00 00 00 00 00 00 00 00 BÁû¯·a··········
rsp 0x00007fffea2cb2d0 60 b3 2c ea ff 7f 00 00 ec b3 2c ea 09 00 00 00 `³,êÿ···ì³,ê····
r8 0x00006117b01033c0 30 ef 25 6f 17 61 00 00 d0 c6 fa af 17 61 00 00 0ï%o·a··ÐÆú¯·a··
r9 0x00006117b01495e0 30 ef 25 6f 17 61 00 00 18 c6 fa af 17 61 00 00 0ï%o·a···Æú¯·a··
r10 0x00007fffea2cb620 08 b6 2c ea ff 7f 00 00 e8 c6 2c ea ff 7f 00 00 ·¶,êÿ···èÆ,êÿ···
r11 0x00006117b014b440 42 c1 fb af 17 61 00 00 00 00 00 00 00 00 00 00 BÁû¯·a··········
r12 0x0000000000000001 1
r13 0x00006117b01495e0 30 ef 25 6f 17 61 00 00 18 c6 fa af 17 61 00 00 0ï%o·a···Æú¯·a··
r14 0x00007fffea2cb468 18 c6 fa af 17 61 00 00 f0 b4 2c ea ff 7f 00 00 ·Æú¯·a··ð´,êÿ···
r15 0x00006117affac6d0 f0 5a b0 af 17 61 00 00 18 02 00 08 00 00 00 00 ðZ°¯·a··········
rip 0x00006117687efa94 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):
0x0000611767614000–0x000061176f22c940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.31s
<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-54344843-0":/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: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 0x0000565e5ac38ca8
1 swift-frontend 0x0000565e5ac36a7e
2 swift-frontend 0x0000565e5ac39348
3 libc.so.6 0x000071d3f65be330
4 swift-frontend 0x0000565e550bfa94
5 swift-frontend 0x0000565e551733ca
6 swift-frontend 0x0000565e55170445
7 swift-frontend 0x0000565e5516fa79
8 swift-frontend 0x0000565e5516e802
9 swift-frontend 0x0000565e5516fa79
10 swift-frontend 0x0000565e5516e11d
11 swift-frontend 0x0000565e551048d4
12 swift-frontend 0x0000565e55094720
13 swift-frontend 0x0000565e55095201
14 swift-frontend 0x0000565e55092d18
15 swift-frontend 0x0000565e55182342
16 swift-frontend 0x0000565e55182182
17 swift-frontend 0x0000565e551820b8
18 swift-frontend 0x0000565e55097b83
19 swift-frontend 0x0000565e550982c0
20 swift-frontend 0x0000565e5516da84
21 swift-frontend 0x0000565e5516d9a9
22 swift-frontend 0x0000565e5509c4f7
23 swift-frontend 0x0000565e55098a22
24 swift-frontend 0x0000565e549ca95d
25 swift-frontend 0x0000565e549cd1fa
26 swift-frontend 0x0000565e549cc6d3
27 swift-frontend 0x0000565e547b3869
28 libc.so.6 0x000071d3f65a31ca
29 libc.so.6 0x000071d3f65a328b __libc_start_main + 139
30 swift-frontend 0x0000565e547b29b5
*** Signal 11: Backtracing from 0x565e550bfa94... done ***
*** Program crashed: Bad pointer dereference at 0x000056625c3c8690 ***
Thread 0 "swift-frontend" crashed:
0 0x0000565e550bfa94 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 0x00007ffd2e270c58 98 21 27 2e fd 7f 00 00 e0 0b ad 68 5e 56 00 00 ·!'.ý···à·h^V··
rcx 0x0000565e5c3c8694 09 74 cf f8 f8 74 cf f8 67 75 cf f8 1a 76 cf f8 ·tÏøøtÏøguÏø·vÏø
rbx 0x0000565e5c414a88 ff 77 de f9 2b 78 de f9 2c 78 de f9 32 78 de f9 ÿwÞù+xÞù,xÞù2xÞù
rsi 0x0000565e6893f648 60 d3 4b 68 5e 56 00 00 18 04 00 08 00 00 00 00 `ÓKh^V··········
rdi 0x0000565e6893f700 60 d3 4b 68 5e 56 00 00 18 02 00 08 00 00 00 00 `ÓKh^V··········
rbp 0x0000565e68ad4130 c2 f0 94 68 5e 56 00 00 00 00 00 00 00 00 00 00 Âð·h^V··········
rsp 0x00007ffd2e26f840 d0 f8 26 2e fd 7f 00 00 5c f9 26 2e 09 00 00 00 Ðø&.ý···\ù&.····
r8 0x0000565e68a67cf0 30 ef b2 5b 5e 56 00 00 00 f7 93 68 5e 56 00 00 0ï²[^V···÷·h^V··
r9 0x0000565e68ad1250 30 ef b2 5b 5e 56 00 00 48 f6 93 68 5e 56 00 00 0ï²[^V··Hö·h^V··
r10 0x00007ffd2e26fb90 78 fb 26 2e fd 7f 00 00 58 0c 27 2e fd 7f 00 00 xû&.ý···X·'.ý···
r11 0x0000565e68ad4130 c2 f0 94 68 5e 56 00 00 00 00 00 00 00 00 00 00 Âð·h^V··········
r12 0x0000000000000001 1
r13 0x0000565e68ad1250 30 ef b2 5b 5e 56 00 00 48 f6 93 68 5e 56 00 00 0ï²[^V··Hö·h^V··
r14 0x00007ffd2e26f9d8 48 f6 93 68 5e 56 00 00 60 fa 26 2e fd 7f 00 00 Hö·h^V··`ú&.ý···
r15 0x0000565e6893f700 60 d3 4b 68 5e 56 00 00 18 02 00 08 00 00 00 00 `ÓKh^V··········
rip 0x0000565e550bfa94 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):
0x0000565e53ee4000–0x0000565e5bafc940 99fa61a85005b1209a9b8fa77237f728c41fc57c swift-frontend /usr/bin/swift-frontend
Backtrace took 0.15s
BUILD FAILURE 6.1 linux