Swift Package IndexBuild Information
Failed to build Atomic, reference main (e774d6), with Swift 6.1 for Linux on 1 May 2026 22:03:10 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/space-code/atomic.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/space-code/atomic
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at e774d69 chore(changelog): update CHANGELOG.md
Cloned https://github.com/space-code/atomic.git
Revision (git rev-parse @):
e774d693f4d810b7a1db73ee3bccc87905e45673
SUCCESS checkout https://github.com/space-code/atomic.git at main
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Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/space-code/atomic.git
https://github.com/space-code/atomic.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/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 swiftpackageindex/spi-images
Digest: sha256:a7bfd71e9384436264431030299dc8a2d42d0664a168cfa1a5dd84c9bc592ccf
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
warning: 'spi-builder-workspace': /host/spi-builder-workspace/Package.swift:12:16: warning: 'v11' is deprecated: tvOS 12.0 is the oldest supported version
10 | .iOS(.v13),
11 | .watchOS(.v6),
12 | .tvOS(.v11),
| `- warning: 'v11' is deprecated: tvOS 12.0 is the oldest supported version
13 | .visionOS(.v1),
14 | ],
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/6] Compiling Atomic ILock.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
[4/6] Emitting module Atomic
<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/Atomic/Classes/Helpers/Lock/UnfairLock.swift:15:29: error: cannot find type 'os_unfair_lock_t' in scope
13 |
14 | /// The underlying `os_unfair_lock` used for synchronization.
15 | private let unfairLock: os_unfair_lock_t
| `- error: cannot find type 'os_unfair_lock_t' in scope
16 |
17 | // MARK: Initialization
[5/6] Compiling Atomic Atomic.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/Atomic/Classes/Helpers/Lock/UnfairLock.swift:15:29: error: cannot find type 'os_unfair_lock_t' in scope
13 |
14 | /// The underlying `os_unfair_lock` used for synchronization.
15 | private let unfairLock: os_unfair_lock_t
| `- error: cannot find type 'os_unfair_lock_t' in scope
16 |
17 | // MARK: Initialization
[6/6] Compiling Atomic UnfairLock.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/Atomic/Classes/Helpers/Lock/UnfairLock.swift:15:29: error: cannot find type 'os_unfair_lock_t' in scope
13 |
14 | /// The underlying `os_unfair_lock` used for synchronization.
15 | private let unfairLock: os_unfair_lock_t
| `- error: cannot find type 'os_unfair_lock_t' in scope
16 |
17 | // MARK: Initialization
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:21:23: error: cannot infer contextual base in reference to member 'allocate'
19 | /// Initializes an UnfairLock instance.
20 | init() {
21 | unfairLock = .allocate(capacity: 1)
| `- error: cannot infer contextual base in reference to member 'allocate'
22 | unfairLock.initialize(to: os_unfair_lock())
23 | }
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:22:35: error: cannot find 'os_unfair_lock' in scope
20 | init() {
21 | unfairLock = .allocate(capacity: 1)
22 | unfairLock.initialize(to: os_unfair_lock())
| `- error: cannot find 'os_unfair_lock' in scope
23 | }
24 |
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:35:9: error: cannot find 'os_unfair_lock_lock' in scope
33 | extension UnfairLock: ILock {
34 | func lock() {
35 | os_unfair_lock_lock(unfairLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
36 | }
37 |
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:39:9: error: cannot find 'os_unfair_lock_unlock' in scope
37 |
38 | func unlock() {
39 | os_unfair_lock_unlock(unfairLock)
| `- error: cannot find 'os_unfair_lock_unlock' in scope
40 | }
41 | }
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:a7bfd71e9384436264431030299dc8a2d42d0664a168cfa1a5dd84c9bc592ccf
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
warning: 'spi-builder-workspace': /host/spi-builder-workspace/Package.swift:12:16: warning: 'v11' is deprecated: tvOS 12.0 is the oldest supported version
10 | .iOS(.v13),
11 | .watchOS(.v6),
12 | .tvOS(.v11),
| `- warning: 'v11' is deprecated: tvOS 12.0 is the oldest supported version
13 | .visionOS(.v1),
14 | ],
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
[2/5] Compiling Atomic UnfairLock.swift
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:15:29: error: cannot find type 'os_unfair_lock_t' in scope
13 |
14 | /// The underlying `os_unfair_lock` used for synchronization.
15 | private let unfairLock: os_unfair_lock_t
| `- error: cannot find type 'os_unfair_lock_t' in scope
16 |
17 | // MARK: Initialization
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:21:23: error: cannot infer contextual base in reference to member 'allocate'
19 | /// Initializes an UnfairLock instance.
20 | init() {
21 | unfairLock = .allocate(capacity: 1)
| `- error: cannot infer contextual base in reference to member 'allocate'
22 | unfairLock.initialize(to: os_unfair_lock())
23 | }
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:22:35: error: cannot find 'os_unfair_lock' in scope
20 | init() {
21 | unfairLock = .allocate(capacity: 1)
22 | unfairLock.initialize(to: os_unfair_lock())
| `- error: cannot find 'os_unfair_lock' in scope
23 | }
24 |
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:35:9: error: cannot find 'os_unfair_lock_lock' in scope
33 | extension UnfairLock: ILock {
34 | func lock() {
35 | os_unfair_lock_lock(unfairLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
36 | }
37 |
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:39:9: error: cannot find 'os_unfair_lock_unlock' in scope
37 |
38 | func unlock() {
39 | os_unfair_lock_unlock(unfairLock)
| `- error: cannot find 'os_unfair_lock_unlock' in scope
40 | }
41 | }
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/5] Compiling Atomic ILock.swift
[4/5] Emitting module Atomic
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:15:29: error: cannot find type 'os_unfair_lock_t' in scope
13 |
14 | /// The underlying `os_unfair_lock` used for synchronization.
15 | private let unfairLock: os_unfair_lock_t
| `- error: cannot find type 'os_unfair_lock_t' in scope
16 |
17 | // MARK: Initialization
[5/5] Compiling Atomic Atomic.swift
/host/spi-builder-workspace/Sources/Atomic/Classes/Helpers/Lock/UnfairLock.swift:15:29: error: cannot find type 'os_unfair_lock_t' in scope
13 |
14 | /// The underlying `os_unfair_lock` used for synchronization.
15 | private let unfairLock: os_unfair_lock_t
| `- error: cannot find type 'os_unfair_lock_t' in scope
16 |
17 | // MARK: Initialization
BUILD FAILURE 6.1 linux