Swift Package IndexBuild Information
Failed to build SwiftDagre, reference 0.1.0 (92efb7), with Swift 6.2 for Linux on 25 Feb 2026 07:30:58 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/finestructure/spi-images:basic-6.2-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
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Builder version: 4.68.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/lukilabs/dagre-swift.git
Reference: 0.1.0
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/lukilabs/dagre-swift
* tag 0.1.0 -> FETCH_HEAD
HEAD is now at 92efb78 Initial Commit
Cloned https://github.com/lukilabs/dagre-swift.git
Revision (git rev-parse @):
92efb78b73a8b665ee74bacfb0f1f5b17bbe1b38
SUCCESS checkout https://github.com/lukilabs/dagre-swift.git at 0.1.0
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Build
========================================
Selected platform: linux
Swift version: 6.2
Building package at path: $PWD
https://github.com/lukilabs/dagre-swift.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:basic-6.2-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:257b0ae9749b4eea8553a58f7bf60a672611c061e9b845ccfee371e7c1138ce8
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.2-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/27] Compiling SwiftDagre AddSubgraphConstraints.swift
[4/27] Compiling SwiftDagre Barycenter.swift
[5/27] Compiling SwiftDagre BuildLayerGraph.swift
[6/30] Compiling SwiftDagre SortSubgraph.swift
[7/30] Compiling SwiftDagre BrandesKopf.swift
[8/30] Compiling SwiftDagre Position.swift
[9/30] Compiling SwiftDagre PositionY.swift
[10/30] Compiling SwiftDagre FeasibleTree.swift
[11/30] Compiling SwiftDagre LongestPath.swift
[12/30] Compiling SwiftDagre CrossCount.swift
[13/30] Compiling SwiftDagre InitOrder.swift
[14/30] Compiling SwiftDagre Order.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[15/30] Compiling SwiftDagre NestingGraph.swift
[16/30] Compiling SwiftDagre Denormalize.swift
[17/30] Compiling SwiftDagre Normalize.swift
[18/30] Compiling SwiftDagre ParentDummyChains.swift
[19/30] Emitting module SwiftDagre
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:14:38: error: cannot find 'os_unfair_lock' in scope
12 | private static var reverseIdCounter: Int = 0
13 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
14 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
15 |
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:17:38: error: cannot find 'os_unfair_lock' in scope
15 | private static var _nodeIdCounter = 0
16 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
17 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
18 |
19 | /// Generates a unique node ID with a given prefix
[20/30] Compiling SwiftDagre GraphOptions.swift
[21/30] Compiling SwiftDagre AddBorderSegments.swift
[22/30] Compiling SwiftDagre Labels.swift
[23/30] Compiling SwiftDagre Layout.swift
[24/30] Compiling SwiftDagre Acyclic.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:14:38: error: cannot find 'os_unfair_lock' in scope
12 | private static var reverseIdCounter: Int = 0
13 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
14 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
15 |
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:18:9: error: cannot find 'os_unfair_lock_lock' in scope
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
19 | defer { os_unfair_lock_unlock(&counterLock) }
20 | reverseIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:19:17: error: cannot find 'os_unfair_lock_unlock' in scope
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
19 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
20 | reverseIdCounter += 1
21 | return "rev\(reverseIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Graph/Graph.swift:215:21: warning: result of 'try?' is unused [#no-usage]
213 | if let children = _children[v] {
214 | for child in children {
215 | try? setParent(child, parent: nil)
| `- warning: result of 'try?' is unused [#no-usage]
216 | }
217 | }
[25/30] Compiling SwiftDagre GreedyFAS.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:14:38: error: cannot find 'os_unfair_lock' in scope
12 | private static var reverseIdCounter: Int = 0
13 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
14 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
15 |
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:18:9: error: cannot find 'os_unfair_lock_lock' in scope
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
19 | defer { os_unfair_lock_unlock(&counterLock) }
20 | reverseIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:19:17: error: cannot find 'os_unfair_lock_unlock' in scope
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
19 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
20 | reverseIdCounter += 1
21 | return "rev\(reverseIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Graph/Graph.swift:215:21: warning: result of 'try?' is unused [#no-usage]
213 | if let children = _children[v] {
214 | for child in children {
215 | try? setParent(child, parent: nil)
| `- warning: result of 'try?' is unused [#no-usage]
216 | }
217 | }
[26/30] Compiling SwiftDagre EdgeId.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:14:38: error: cannot find 'os_unfair_lock' in scope
12 | private static var reverseIdCounter: Int = 0
13 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
14 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
15 |
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:18:9: error: cannot find 'os_unfair_lock_lock' in scope
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
19 | defer { os_unfair_lock_unlock(&counterLock) }
20 | reverseIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:19:17: error: cannot find 'os_unfair_lock_unlock' in scope
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
19 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
20 | reverseIdCounter += 1
21 | return "rev\(reverseIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Graph/Graph.swift:215:21: warning: result of 'try?' is unused [#no-usage]
213 | if let children = _children[v] {
214 | for child in children {
215 | try? setParent(child, parent: nil)
| `- warning: result of 'try?' is unused [#no-usage]
216 | }
217 | }
[27/30] Compiling SwiftDagre Graph.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:14:38: error: cannot find 'os_unfair_lock' in scope
12 | private static var reverseIdCounter: Int = 0
13 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
14 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
15 |
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:18:9: error: cannot find 'os_unfair_lock_lock' in scope
16 | /// Generates a unique ID for reversed edges (matches dagrejs's uniqueId("rev"))
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
19 | defer { os_unfair_lock_unlock(&counterLock) }
20 | reverseIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Acyclic/Acyclic.swift:19:17: error: cannot find 'os_unfair_lock_unlock' in scope
17 | private static func uniqueReverseId() -> String {
18 | os_unfair_lock_lock(&counterLock)
19 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
20 | reverseIdCounter += 1
21 | return "rev\(reverseIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Graph/Graph.swift:215:21: warning: result of 'try?' is unused [#no-usage]
213 | if let children = _children[v] {
214 | for child in children {
215 | try? setParent(child, parent: nil)
| `- warning: result of 'try?' is unused [#no-usage]
216 | }
217 | }
[28/30] Compiling SwiftDagre NetworkSimplex.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:17:38: error: cannot find 'os_unfair_lock' in scope
15 | private static var _nodeIdCounter = 0
16 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
17 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
18 |
19 | /// Generates a unique node ID with a given prefix
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:21:9: error: cannot find 'os_unfair_lock_lock' in scope
19 | /// Generates a unique node ID with a given prefix
20 | public static func uniqueId(_ prefix: String = "_") -> String {
21 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
22 | defer { os_unfair_lock_unlock(&counterLock) }
23 | _nodeIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:22:17: error: cannot find 'os_unfair_lock_unlock' in scope
20 | public static func uniqueId(_ prefix: String = "_") -> String {
21 | os_unfair_lock_lock(&counterLock)
22 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
23 | _nodeIdCounter += 1
24 | return "\(prefix)\(_nodeIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:29:9: error: cannot find 'os_unfair_lock_lock' in scope
27 | /// Resets the unique ID counter (for testing)
28 | public static func resetIdCounter() {
29 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
30 | defer { os_unfair_lock_unlock(&counterLock) }
31 | _nodeIdCounter = 0
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:30:17: error: cannot find 'os_unfair_lock_unlock' in scope
28 | public static func resetIdCounter() {
29 | os_unfair_lock_lock(&counterLock)
30 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
31 | _nodeIdCounter = 0
32 | }
[29/30] Compiling SwiftDagre Rank.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:17:38: error: cannot find 'os_unfair_lock' in scope
15 | private static var _nodeIdCounter = 0
16 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
17 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
18 |
19 | /// Generates a unique node ID with a given prefix
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:21:9: error: cannot find 'os_unfair_lock_lock' in scope
19 | /// Generates a unique node ID with a given prefix
20 | public static func uniqueId(_ prefix: String = "_") -> String {
21 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
22 | defer { os_unfair_lock_unlock(&counterLock) }
23 | _nodeIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:22:17: error: cannot find 'os_unfair_lock_unlock' in scope
20 | public static func uniqueId(_ prefix: String = "_") -> String {
21 | os_unfair_lock_lock(&counterLock)
22 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
23 | _nodeIdCounter += 1
24 | return "\(prefix)\(_nodeIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:29:9: error: cannot find 'os_unfair_lock_lock' in scope
27 | /// Resets the unique ID counter (for testing)
28 | public static func resetIdCounter() {
29 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
30 | defer { os_unfair_lock_unlock(&counterLock) }
31 | _nodeIdCounter = 0
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:30:17: error: cannot find 'os_unfair_lock_unlock' in scope
28 | public static func resetIdCounter() {
29 | os_unfair_lock_lock(&counterLock)
30 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
31 | _nodeIdCounter = 0
32 | }
[30/30] Compiling SwiftDagre GraphUtil.swift
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:17:38: error: cannot find 'os_unfair_lock' in scope
15 | private static var _nodeIdCounter = 0
16 | /// Lock for thread-safe counter access (os_unfair_lock for macOS 10.12+ compatibility)
17 | private static var counterLock = os_unfair_lock()
| `- error: cannot find 'os_unfair_lock' in scope
18 |
19 | /// Generates a unique node ID with a given prefix
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:21:9: error: cannot find 'os_unfair_lock_lock' in scope
19 | /// Generates a unique node ID with a given prefix
20 | public static func uniqueId(_ prefix: String = "_") -> String {
21 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
22 | defer { os_unfair_lock_unlock(&counterLock) }
23 | _nodeIdCounter += 1
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:22:17: error: cannot find 'os_unfair_lock_unlock' in scope
20 | public static func uniqueId(_ prefix: String = "_") -> String {
21 | os_unfair_lock_lock(&counterLock)
22 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
23 | _nodeIdCounter += 1
24 | return "\(prefix)\(_nodeIdCounter)"
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:29:9: error: cannot find 'os_unfair_lock_lock' in scope
27 | /// Resets the unique ID counter (for testing)
28 | public static func resetIdCounter() {
29 | os_unfair_lock_lock(&counterLock)
| `- error: cannot find 'os_unfair_lock_lock' in scope
30 | defer { os_unfair_lock_unlock(&counterLock) }
31 | _nodeIdCounter = 0
/host/spi-builder-workspace/Sources/SwiftDagre/Util/GraphUtil.swift:30:17: error: cannot find 'os_unfair_lock_unlock' in scope
28 | public static func resetIdCounter() {
29 | os_unfair_lock_lock(&counterLock)
30 | defer { os_unfair_lock_unlock(&counterLock) }
| `- error: cannot find 'os_unfair_lock_unlock' in scope
31 | _nodeIdCounter = 0
32 | }
BUILD FAILURE 6.2 linux