Build Information
Failed to build Idioms, reference 2.1.0 (6b1f04), with Swift 6.3 for Wasm on 12 Apr 2026 00:46:57 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:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1Build Log
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RunAll
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Builder version: 4.70.0
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/hectr/swift-idioms.git
Reference: 2.1.0
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/hectr/swift-idioms
* tag 2.1.0 -> FETCH_HEAD
HEAD is now at 6b1f044 Release. 2.1.0
Cloned https://github.com/hectr/swift-idioms.git
Revision (git rev-parse @):
6b1f0449fbc1d2e3062a65f2ed73229367ab8c52
SUCCESS checkout https://github.com/hectr/swift-idioms.git at 2.1.0
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Build
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Selected platform: wasm
Swift version: 6.3
Building package at path: $PWD
https://github.com/hectr/swift-idioms.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest swift build --swift-sdk swift-6.3-RELEASE_wasm 2>&1
wasm-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:d69f4e7582c319245442d62a08b2d7c7fd5a0c0c69f5d2ef11d1530cd8d3329b
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.3-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
[3/22] Compiling Idioms Array+appending.swift
[4/22] Compiling Idioms Array+prepending.swift
[5/22] Compiling Idioms Array+removing.swift
[6/24] Compiling Idioms Vector+Sequence.swift
[7/24] Compiling Idioms Vector.swift
[8/24] Compiling Idioms String+removing.swift
[9/24] Compiling Idioms StringProtocol+Subscript.swift
[10/24] Compiling Idioms OptionSet+toArray.swift
[11/24] Compiling Idioms RandomAccessMutableCollection.swift
[12/24] Compiling Idioms RegularExpressionMatchOperator.swift
error: emit-module command failed with exit code 1 (use -v to see invocation)
[13/24] Emitting module Idioms
/host/spi-builder-workspace/Sources/Idioms/IterableRandomAccessCollection.swift:64:11: error: cannot find type 'DispatchData' in scope
62 |
63 | extension KeyValuePairs: IterableRandomAccessCollection {}
64 | extension DispatchData: IterableRandomAccessCollection {}
| `- error: cannot find type 'DispatchData' in scope
65 | extension Repeated: IterableRandomAccessCollection {}
66 | extension Unicode.Scalar.UTF16View: IterableRandomAccessCollection {}
[14/24] Compiling Idioms String+Prepending.swift
[15/24] Compiling Idioms String+Word.swift
[16/24] Compiling Idioms Dictionary+deepMerging.swift
[17/24] Compiling Idioms ForLoop.swift
[18/24] Compiling Idioms Int+Times.swift
[19/24] Compiling Idioms Array+toOptionSet.swift
/host/spi-builder-workspace/Sources/Idioms/CharacterSet+characters.swift:30:20: error: cannot find type 'UTF32Char' in scope
28 | let p0 = UInt32(plane) << 16
29 | let p1 = (UInt32(plane) + 1) << 16
30 | for c: UTF32Char in p0..<p1 {
| `- error: cannot find type 'UTF32Char' in scope
31 | guard let scalar = UnicodeScalar(c) else { continue }
32 | guard contains(scalar) else { continue }
[20/24] Compiling Idioms Bool+ControlFlow.swift
/host/spi-builder-workspace/Sources/Idioms/CharacterSet+characters.swift:30:20: error: cannot find type 'UTF32Char' in scope
28 | let p0 = UInt32(plane) << 16
29 | let p1 = (UInt32(plane) + 1) << 16
30 | for c: UTF32Char in p0..<p1 {
| `- error: cannot find type 'UTF32Char' in scope
31 | guard let scalar = UnicodeScalar(c) else { continue }
32 | guard contains(scalar) else { continue }
[21/24] Compiling Idioms CharacterSet+characters.swift
/host/spi-builder-workspace/Sources/Idioms/CharacterSet+characters.swift:30:20: error: cannot find type 'UTF32Char' in scope
28 | let p0 = UInt32(plane) << 16
29 | let p1 = (UInt32(plane) + 1) << 16
30 | for c: UTF32Char in p0..<p1 {
| `- error: cannot find type 'UTF32Char' in scope
31 | guard let scalar = UnicodeScalar(c) else { continue }
32 | guard contains(scalar) else { continue }
[22/24] Compiling Idioms IterableRandomAccessCollection.swift
/host/spi-builder-workspace/Sources/Idioms/IterableRandomAccessCollection.swift:64:11: error: cannot find type 'DispatchData' in scope
62 |
63 | extension KeyValuePairs: IterableRandomAccessCollection {}
64 | extension DispatchData: IterableRandomAccessCollection {}
| `- error: cannot find type 'DispatchData' in scope
65 | extension Repeated: IterableRandomAccessCollection {}
66 | extension Unicode.Scalar.UTF16View: IterableRandomAccessCollection {}
[23/24] Compiling Idioms Matrix2D+Sequence.swift
/host/spi-builder-workspace/Sources/Idioms/IterableRandomAccessCollection.swift:64:11: error: cannot find type 'DispatchData' in scope
62 |
63 | extension KeyValuePairs: IterableRandomAccessCollection {}
64 | extension DispatchData: IterableRandomAccessCollection {}
| `- error: cannot find type 'DispatchData' in scope
65 | extension Repeated: IterableRandomAccessCollection {}
66 | extension Unicode.Scalar.UTF16View: IterableRandomAccessCollection {}
[24/24] Compiling Idioms Matrix2D.swift
/host/spi-builder-workspace/Sources/Idioms/IterableRandomAccessCollection.swift:64:11: error: cannot find type 'DispatchData' in scope
62 |
63 | extension KeyValuePairs: IterableRandomAccessCollection {}
64 | extension DispatchData: IterableRandomAccessCollection {}
| `- error: cannot find type 'DispatchData' in scope
65 | extension Repeated: IterableRandomAccessCollection {}
66 | extension Unicode.Scalar.UTF16View: IterableRandomAccessCollection {}
BUILD FAILURE 6.3 wasm