Build Information
Failed to build swift-png, reference 4.5.1 (8a0bcd), with Swift 6.4 for Wasm on 21 Sep 2026 22:11:45 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/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:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/tayloraswift/swift-png.git
Reference: 4.5.1
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/tayloraswift/swift-png
* tag 4.5.1 -> FETCH_HEAD
HEAD is now at 8a0bcd4 Merge pull request #93 from tayloraswift/android
Cloned https://github.com/tayloraswift/swift-png.git
Revision (git rev-parse @):
8a0bcd4df5e4b307c804937776a56dd6ecdf6396
SUCCESS checkout https://github.com/tayloraswift/swift-png.git at 4.5.1
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.4
Building package at path: $PWD
https://github.com/tayloraswift/swift-png.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest swift build --swift-sdk swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm 2>&1
wasm-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:4328fdb43c680d205c1d6761b1e3267aa38277eefdda9ddfb17b6a0f1a77857a
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.4-latest
Fetching https://github.com/rarestype/h
Fetching https://github.com/ordo-one/dollup
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Fetched https://github.com/rarestype/h (0.53s)
Computing version for https://github.com/rarestype/h
Computed https://github.com/rarestype/h at 1.0.1 (0.77s)
Computing version for https://github.com/ordo-one/dollup
Computed https://github.com/ordo-one/dollup at 1.0.8 (0.16s)
Creating working copy for https://github.com/ordo-one/dollup
Working copy of https://github.com/ordo-one/dollup resolved at 1.0.8
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Working copy of https://github.com/rarestype/h resolved at 1.0.1
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Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 618]
[Planning deferred tasks]
[55 / 178] CRC
[104 / 182] Base16
[109 / 187] Base16
[117 / 190] CRC
[123 / 191] LZ77
[126 / 200] LZ77
[127 / 200] LZ77
[134 / 201] LZ77
[135 / 201] PNG
[138 / 202] BaseDigits
[141 / 203] BaseDigits
[147 / 205] PNG
[149 / 213] LZ77
[152 / 213] PNG
/host/spi-builder-workspace/Sources/PNG/System.swift:22:5: [1;33mwarning: [1;39munsupported or untested platform (please open an issue at https://github.com/tayloraswift/swift-png/issues)[0;0m
[0;36m20 |[0;0m #else
[0;36m21 |[0;0m #warning(
[0;36m22 |[0;0m [4;39m"""[0;0m
[0;36m|[0;0m `- [1;33mwarning: [1;39munsupported or untested platform (please open an issue at https://github.com/tayloraswift/swift-png/issues)[0;0m
[0;36m23 |[0;0m unsupported or untested platform (please open an issue at https://github.com/tayloraswift/swift-png/issues)
[0;36m24 |[0;0m """
[153 / 213] PNG
[153 / 213] LZ77
/host/spi-builder-workspace/Sources/PNG/System.swift:22:5: [1;33mwarning: [1;39munsupported or untested platform (please open an issue at https://github.com/tayloraswift/swift-png/issues)[0;0m
[0;36m20 |[0;0m #else
[0;36m21 |[0;0m #warning(
[0;36m22 |[0;0m [4;39m"""[0;0m
[0;36m|[0;0m `- [1;33mwarning: [1;39munsupported or untested platform (please open an issue at https://github.com/tayloraswift/swift-png/issues)[0;0m
[0;36m23 |[0;0m unsupported or untested platform (please open an issue at https://github.com/tayloraswift/swift-png/issues)
[0;36m24 |[0;0m """
[160 / 213] PNG
[161 / 213] iPhoneOptimized-product
[166 / 217] PNG
error: SwiftCompile normal wasm32 failed with a nonzero exit code. Command line: cd /host
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:9:39: [1;31merror: [1;39mincorrect argument label in call (have 'path:', expected 'stream:')[0;0m
[0;36m7 |[0;0m
[0;36m8 |[0;0m guard
[0;36m9 |[0;0m var image: PNG.Image = try .decompress(path: "\(path).png") else {
[0;36m|[0;0m `- [1;31merror: [1;39mincorrect argument label in call (have 'path:', expected 'stream:')[0;0m
[0;36m10 |[0;0m fatalError("failed to open file '\(path).png'")
[0;36m11 |[0;0m }
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:19:7: [1;31merror: [1;39mcannot infer key path type from context; consider explicitly specifying a root type[0;0m
[0;36m17 |[0;0m let rgba: [PNG.RGBA<UInt8>] = image.unpack(
[0;36m18 |[0;0m as: PNG.RGBA<UInt8>.self
[0;36m19 |[0;0m ).map([4;39m\[0;0m.straightened)
[0;36m|[0;0m `- [1;31merror: [1;39mcannot infer key path type from context; consider explicitly specifying a root type[0;0m
[0;36m20 |[0;0m
[0;36m21 |[0;0m // snippet.INSPECT_STORAGE
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:31:29: [1;31merror: [1;39mextra argument 'path' in call[0;0m
[0;36m29 |[0;0m )
[0;36m30 |[0;0m
[0;36m31 |[0;0m try standard.compress(path: "\(path)-rgb8.png")
[0;36m|[0;0m `- [1;31merror: [1;39mextra argument 'path' in call[0;0m
[0;36m32 |[0;0m
[0;36m33 |[0;0m // snippet.REENCODE_BGR
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:31:23: [1;31merror: [1;39mmissing argument for parameter 'stream' in call[0;0m
[0;36m29 |[0;0m )
[0;36m30 |[0;0m
[0;36m31 |[0;0m try standard.compress(path: "\(path)-rgb8.png")
[0;36m|[0;0m `- [1;31merror: [1;39mmissing argument for parameter 'stream' in call[0;0m
[0;36m32 |[0;0m
[0;36m33 |[0;0m // snippet.REENCODE_BGR
/host/spi-builder-workspace/Sources/PNG/PNG.Image.swift:522:17: [1;39mnote: [1;39m'compress(stream:level:hint:)' declared here[0;0m
[0;36m520 |[0;0m /// it to `1`. Likewise, setting it to a value greater than `2147483647`
[0;36m521 |[0;0m /// (2<sup>31</sup> – 1) is the same as setting it to `2147483647`.
[0;36m522 |[0;0m public func compress<Destination>(
[0;36m|[0;0m `- [1;39mnote: [1;39m'compress(stream:level:hint:)' declared here[0;0m
[0;36m523 |[0;0m stream: inout Destination,
[0;36m524 |[0;0m level: Int = 9,
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:31:14: [1;31merror: [1;39mgeneric parameter 'Destination' could not be inferred[0;0m
[0;36m29 |[0;0m )
[0;36m30 |[0;0m
[0;36m31 |[0;0m try standard.compress(path: "\(path)-rgb8.png")
[0;36m|[0;0m `- [1;31merror: [1;39mgeneric parameter 'Destination' could not be inferred[0;0m
[0;36m32 |[0;0m
[0;36m33 |[0;0m // snippet.REENCODE_BGR
/host/spi-builder-workspace/Sources/PNG/PNG.Image.swift:522:17: [1;39mnote: [1;39min call to function 'compress(stream:level:hint:)'[0;0m
[0;36m520 |[0;0m /// it to `1`. Likewise, setting it to a value greater than `2147483647`
[0;36m521 |[0;0m /// (2<sup>31</sup> – 1) is the same as setting it to `2147483647`.
[0;36m522 |[0;0m public func compress<Destination>(
[0;36m|[0;0m `- [1;39mnote: [1;39min call to function 'compress(stream:level:hint:)'[0;0m
[0;36m523 |[0;0m stream: inout Destination,
[0;36m524 |[0;0m level: Int = 9,
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:40:11: [1;31merror: [1;39mgeneric parameter 'Destination' could not be inferred[0;0m
[0;36m38 |[0;0m )
[0;36m39 |[0;0m
[0;36m40 |[0;0m try apple.compress(path: "\(path)-bgr8.png")
[0;36m|[0;0m `- [1;31merror: [1;39mgeneric parameter 'Destination' could not be inferred[0;0m
[0;36m41 |[0;0m
/host/spi-builder-workspace/Sources/PNG/PNG.Image.swift:522:17: [1;39mnote: [1;39min call to function 'compress(stream:level:hint:)'[0;0m
[0;36m520 |[0;0m /// it to `1`. Likewise, setting it to a value greater than `2147483647`
[0;36m521 |[0;0m /// (2<sup>31</sup> – 1) is the same as setting it to `2147483647`.
[0;36m522 |[0;0m public func compress<Destination>(
[0;36m|[0;0m `- [1;39mnote: [1;39min call to function 'compress(stream:level:hint:)'[0;0m
[0;36m523 |[0;0m stream: inout Destination,
[0;36m524 |[0;0m level: Int = 9,
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:40:26: [1;31merror: [1;39mextra argument 'path' in call[0;0m
[0;36m38 |[0;0m )
[0;36m39 |[0;0m
[0;36m40 |[0;0m try apple.compress(path: "\(path)-bgr8.png")
[0;36m|[0;0m `- [1;31merror: [1;39mextra argument 'path' in call[0;0m
[0;36m41 |[0;0m
/host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift:40:20: [1;31merror: [1;39mmissing argument for parameter 'stream' in call[0;0m
[0;36m38 |[0;0m )
[0;36m39 |[0;0m
[0;36m40 |[0;0m try apple.compress(path: "\(path)-bgr8.png")
[0;36m|[0;0m `- [1;31merror: [1;39mmissing argument for parameter 'stream' in call[0;0m
[0;36m41 |[0;0m
/host/spi-builder-workspace/Sources/PNG/PNG.Image.swift:522:17: [1;39mnote: [1;39m'compress(stream:level:hint:)' declared here[0;0m
[0;36m520 |[0;0m /// it to `1`. Likewise, setting it to a value greater than `2147483647`
[0;36m521 |[0;0m /// (2<sup>31</sup> – 1) is the same as setting it to `2147483647`.
[0;36m522 |[0;0m public func compress<Destination>(
[0;36m|[0;0m `- [1;39mnote: [1;39m'compress(stream:level:hint:)' declared here[0;0m
[0;36m523 |[0;0m stream: inout Destination,
[0;36m524 |[0;0m level: Int = 9,
Failed frontend command:
/usr/bin/swift-frontend -frontend -emit-module -experimental-skip-non-inlinable-function-bodies-without-types /host/spi-builder-workspace/Snippets/PNG/iPhoneOptimized.swift -target wasm32-unknown-wasip1 -disable-objc-interop -sdk /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -sysroot /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/WASI.sdk -I /host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32 -module-cache-path /host/spi-builder-workspace/.build/out/ModuleCache.noindex -color-diagnostics -Xcc -fcolor-diagnostics -enable-testing -g -debug-info-format\=dwarf -dwarf-version\=4 -swift-version 5 -Onone -D SWIFT_PACKAGE -D DEBUG -D Xcode -serialize-debugging-options -enable-experimental-feature DebugDescriptionMacro -empty-abi-descriptor -external-plugin-path /usr/lib/swift/host/plugins/testing\#/usr/bin/swift-plugin-server -validate-clang-modules-once -clang-build-session-file /host/spi-builder-workspace/.build/out/ModuleCache.noindex/Session.modulevalidation -Xcc -working-directory -Xcc /host -resource-dir /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static -use-static-resource-dir -enable-anonymous-context-mangled-names -file-compilation-dir /host -Xcc -resource-dir -Xcc /root/.swiftpm/swift-sdks/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm.artifactbundle/swift-6.4.x-DEVELOPMENT-SNAPSHOT-2026-09-04-a_wasm/wasm32-unknown-wasip1/swift.xctoolchain/usr/lib/swift_static/clang -Xcc -D_LIBCPP_HARDENING_MODE\=_LIBCPP_HARDENING_MODE_DEBUG -Xcc -fmodules-prune-interval\=86400 -Xcc -fmodules-prune-after\=345600 -Xcc -I/host/spi-builder-workspace/.build/out/Products/Debug-webassembly-wasm32/include -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/DerivedSources-normal/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/DerivedSources/wasm32 -Xcc -I/host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/DerivedSources -Xcc -DSWIFT_PACKAGE -Xcc -DDEBUG\=1 -no-auto-bridging-header-chaining -module-name iPhoneOptimized -const-gather-protocols-file /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/Objects-normal/wasm32/iPhoneOptimized_const_extract_protocols.json -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 -emit-module-doc-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/Objects-normal/wasm32/Modules/iPhoneOptimized.swiftdoc -emit-module-source-info-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/Objects-normal/wasm32/Modules/iPhoneOptimized.swiftsourceinfo -serialize-diagnostics-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/Objects-normal/wasm32/iPhoneOptimized-primary-emit-module.dia -emit-dependencies-path /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/Objects-normal/wasm32/iPhoneOptimized-primary-emit-module.d -o /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-png.build/Debug-webassembly-wasm32/iPhoneOptimized-p.build/Objects-normal/wasm32/Modules/iPhoneOptimized.swiftmodule
error: Build failed
BUILD FAILURE 6.4 wasm