Swift Package IndexBuild Information
Failed to build SourceMapper, reference main (3d0ee4), with Swift 6.1 for Android on 9 Oct 2026 23:18:52 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344849-0":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1Build Log
========================================
RunAll
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Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/johnfairh/SourceMapper.git
Reference: main
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/johnfairh/SourceMapper
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 3d0ee40 Move CI to Swift 6.4 (#11)
Cloned https://github.com/johnfairh/SourceMapper.git
Revision (git rev-parse @):
3d0ee4062d9326fe3d32bac0f6e26606649649a9
SUCCESS checkout https://github.com/johnfairh/SourceMapper.git at main
========================================
Build
========================================
Selected platform: android
Swift version: 6.1
Building package at path: $PWD
https://github.com/johnfairh/SourceMapper.git
https://github.com/johnfairh/SourceMapper.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 -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
android-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:396310cef4466ceb116ed5462b0b92d4deb353c0dad749b406b7fd226f6db9af
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.1-latest
Building for debugging...
[0/7] Write sources
[2/7] Write swift-version-24593BA9C3E375BF.txt
[4/14] Compiling SourceMapper VLQ.swift
<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
[5/14] Emitting module SourceMapper
<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
[6/14] Compiling SourceMapper JSON.swift
<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
[7/14] Compiling SourceMapper Errors.swift
<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
[8/14] Compiling SourceMapper Mappings.swift
<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
[9/14] Compiling SourceMapper SourceMap.swift
<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
[10/14] Compiling SourceMapper UnpackedSourceMap.swift
<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
[11/15] Wrapping AST for SourceMapper for debugging
error: emit-module command failed with exit code 1 (use -v to see invocation)
[13/17] Emitting module Cli
<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
/host/spi-builder-workspace/Sources/Cli/main.swift:17:48: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
15 | let args = ProcessInfo.processInfo.arguments
16 | guard args.count == 2 else {
17 | fputs("Syntax: srcmapcat <srcmap file>\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
18 | exit(1)
19 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
/host/spi-builder-workspace/Sources/Cli/main.swift:31:32: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
29 | print(unpacked.segmentsDescription)
30 | } catch {
31 | fputs("Error: \(error)\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
32 | exit(2)
33 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
[14/17] Compiling Cli main.swift
<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
/host/spi-builder-workspace/Sources/Cli/main.swift:17:48: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
15 | let args = ProcessInfo.processInfo.arguments
16 | guard args.count == 2 else {
17 | fputs("Syntax: srcmapcat <srcmap file>\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
18 | exit(1)
19 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
/host/spi-builder-workspace/Sources/Cli/main.swift:31:32: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
29 | print(unpacked.segmentsDescription)
30 | } catch {
31 | fputs("Error: \(error)\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
32 | exit(2)
33 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344849-0":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1
android-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:396310cef4466ceb116ed5462b0b92d4deb353c0dad749b406b7fd226f6db9af
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.1-latest
[0/1] Planning build
Building for debugging...
[0/5] Write swift-version-24593BA9C3E375BF.txt
[2/12] Emitting module SourceMapper
[3/12] Compiling SourceMapper JSON.swift
[4/12] Compiling SourceMapper Mappings.swift
[5/12] Compiling SourceMapper Errors.swift
[6/12] Compiling SourceMapper VLQ.swift
[7/12] Compiling SourceMapper UnpackedSourceMap.swift
[8/12] Compiling SourceMapper SourceMap.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[10/14] Emitting module Cli
/host/spi-builder-workspace/Sources/Cli/main.swift:17:48: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
15 | let args = ProcessInfo.processInfo.arguments
16 | guard args.count == 2 else {
17 | fputs("Syntax: srcmapcat <srcmap file>\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
18 | exit(1)
19 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
/host/spi-builder-workspace/Sources/Cli/main.swift:31:32: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
29 | print(unpacked.segmentsDescription)
30 | } catch {
31 | fputs("Error: \(error)\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
32 | exit(2)
33 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
[11/14] Compiling Cli main.swift
/host/spi-builder-workspace/Sources/Cli/main.swift:17:48: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
15 | let args = ProcessInfo.processInfo.arguments
16 | guard args.count == 2 else {
17 | fputs("Syntax: srcmapcat <srcmap file>\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
18 | exit(1)
19 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
/host/spi-builder-workspace/Sources/Cli/main.swift:31:32: error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
29 | print(unpacked.segmentsDescription)
30 | } catch {
31 | fputs("Error: \(error)\n", stderr)
| `- error: reference to var 'stderr' is not concurrency-safe because it involves shared mutable state
32 | exit(2)
33 | }
/root/.swiftpm/swift-sdks/swift-6.1-RELEASE-android-24-0.1.artifactbundle/swift-6.1-release-android-24-sdk/android-27c-sysroot/usr/include/stdio.h:64:23: note: var declared here
62 | extern FILE* _Nonnull stdin __INTRODUCED_IN(23);
63 | extern FILE* _Nonnull stdout __INTRODUCED_IN(23);
64 | extern FILE* _Nonnull stderr __INTRODUCED_IN(23);
| `- note: var declared here
65 |
66 | /* C99 and earlier plus current C++ standards say these must be macros. */
BUILD FAILURE 6.1 android