Swift Package IndexBuild Information
Failed to build swift-ico, reference v0.2.0 (033883), with Swift 6.1 for Wasm on 27 Mar 2026 08:35:43 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/stackotter/swift-ico.git
Reference: v0.2.0
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/stackotter/swift-ico
* tag v0.2.0 -> FETCH_HEAD
HEAD is now at 033883c Switch from lanczos to linear downscaling algorithm
Cloned https://github.com/stackotter/swift-ico.git
Revision (git rev-parse @):
033883c75b92af91c9b010b629ad6e0135aa3d64
SUCCESS checkout https://github.com/stackotter/swift-ico.git at v0.2.0
========================================
Build
========================================
Selected platform: wasm
Swift version: 6.1
Building package at path: $PWD
https://github.com/stackotter/swift-ico.git
https://github.com/stackotter/swift-ico.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
{
"identity" : "swift-image-formats",
"requirement" : {
"range" : [
{
"lower_bound" : "0.5.0",
"upper_bound" : "0.6.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/stackotter/swift-image-formats"
}
],
"manifest_display_name" : "swift-ico",
"name" : "swift-ico",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "10.15"
}
],
"products" : [
{
"name" : "Ico",
"targets" : [
"Ico"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "IcoTests",
"module_type" : "SwiftTarget",
"name" : "IcoTests",
"path" : "Tests/IcoTests",
"sources" : [
"IcoTests.swift"
],
"target_dependencies" : [
"Ico"
],
"type" : "test"
},
{
"c99name" : "Ico",
"module_type" : "SwiftTarget",
"name" : "Ico",
"path" : "Sources/Ico",
"product_dependencies" : [
"ImageFormats"
],
"product_memberships" : [
"Ico"
],
"sources" : [
"BGRA.swift",
"BitmapInfoHeader.swift",
"Encoder.swift",
"Ico.swift",
"IcoError.swift",
"Structures/IconDir.swift",
"Structures/IconDirEntry.swift"
],
"type" : "library"
}
],
"tools_version" : "5.10"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest swift build --swift-sdk wasm32-unknown-wasi -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
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:c3bd0c8eb125dea46564a1eb8b09ee779ba7ae350b1ee58b5e9d6ff6c39cef37
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
Fetching https://github.com/stackotter/swift-image-formats
[1/155] Fetching swift-image-formats
Fetched https://github.com/stackotter/swift-image-formats from cache (0.21s)
Computing version for https://github.com/stackotter/swift-image-formats
Computed https://github.com/stackotter/swift-image-formats at 0.5.0 (3.88s)
Fetching https://github.com/the-swift-collective/libpng
Fetching https://github.com/the-swift-collective/libwebp
Fetching https://github.com/stackotter/jpeg
[1/30] Fetching libpng
[27/84] Fetching libpng, libwebp
[37/3195] Fetching libpng, libwebp, jpeg
Fetched https://github.com/the-swift-collective/libpng from cache (5.22s)
Fetched https://github.com/the-swift-collective/libwebp from cache (5.21s)
Fetched https://github.com/stackotter/jpeg from cache (5.36s)
Computing version for https://github.com/the-swift-collective/libwebp
Computed https://github.com/the-swift-collective/libwebp at 1.4.1 (6.59s)
Computing version for https://github.com/stackotter/jpeg
Computed https://github.com/stackotter/jpeg at 1.0.2 (1.84s)
Computing version for https://github.com/the-swift-collective/libpng
Computed https://github.com/the-swift-collective/libpng at 1.6.45 (0.62s)
Fetching https://github.com/the-swift-collective/zlib.git
[1/48] Fetching zlib
Fetched https://github.com/the-swift-collective/zlib.git from cache (0.82s)
Computing version for https://github.com/the-swift-collective/zlib.git
Computed https://github.com/the-swift-collective/zlib.git at 1.3.2 (1.69s)
Creating working copy for https://github.com/stackotter/swift-image-formats
Working copy of https://github.com/stackotter/swift-image-formats resolved at 0.5.0
Creating working copy for https://github.com/stackotter/jpeg
Working copy of https://github.com/stackotter/jpeg resolved at 1.0.2
Creating working copy for https://github.com/the-swift-collective/libpng
Working copy of https://github.com/the-swift-collective/libpng resolved at 1.6.45
Creating working copy for https://github.com/the-swift-collective/libwebp
Working copy of https://github.com/the-swift-collective/libwebp resolved at 1.4.1
Creating working copy for https://github.com/the-swift-collective/zlib.git
Working copy of https://github.com/the-swift-collective/zlib.git resolved at 1.3.2
Building for debugging...
[0/183] Write sources
[5/183] Compiling sharpyuv_csp.c
[6/183] Compiling sharpyuv_sse2.c
[6/183] Compiling sharpyuv_dsp.c
[8/183] Compiling sharpyuv_cpu.c
[8/183] Compiling sharpyuv_neon.c
[10/183] Compiling sharpyuv_gamma.c
[11/183] Compiling wicdec.c
[12/183] Compiling sharpyuv.c
[12/183] Compiling tiffdec.c
[14/183] Compiling pngdec.c
[15/183] Compiling webpdec.c
[16/183] Compiling metadata.c
[17/183] Compiling pnmdec.c
[18/183] Compiling jpegdec.c
[19/183] Compiling image_dec.c
[20/183] Compiling imageio_util.c
[21/183] Compiling ZLibC uncompr.c
[22/183] Compiling image_enc.c
[23/183] Compiling ZLibC inftrees.c
[24/183] Compiling ZLibC inffast.c
[25/183] Compiling ZLibC zutil.c
[26/183] Compiling ZLibC trees.c
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzread.c:22:15: error: call to undeclared function 'read'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
22 | ret = read(state->fd, buf + *have, get);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzread.c:22:15: note: did you mean 'fread'?
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/stdio.h:102:8: note: 'fread' declared here
102 | size_t fread(void *__restrict, size_t, size_t, FILE *__restrict);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzread.c:600:11: error: call to undeclared function 'close'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
600 | ret = close(state->fd);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzread.c:600:11: note: did you mean 'fclose'?
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/stdio.h:85:5: note: 'fclose' declared here
85 | int fclose(FILE *);
| ^
2 errors generated.
[27/183] Compiling ZLibC gzread.c
[27/183] Compiling ZLibC deflate.c
[27/183] Compiling ZLibC gzclose.c
[27/183] Compiling ZLibC gzlib.c
[27/183] Compiling ZLibC inflate.c
[27/183] Compiling ZLibC infback.c
[27/183] Compiling ZLibC gzwrite.c
[27/183] Write swift-version-24593BA9C3E375BF.txt
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-3":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:c3bd0c8eb125dea46564a1eb8b09ee779ba7ae350b1ee58b5e9d6ff6c39cef37
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
[0/1] Planning build
Building for debugging...
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzwrite.c:78:20: error: call to undeclared function 'write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
78 | writ = write(state->fd, strm->next_in, put);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzwrite.c:78:20: note: did you mean 'fwrite'?
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/stdio.h:103:8: note: 'fwrite' declared here
103 | size_t fwrite(const void *__restrict, size_t, size_t, FILE *__restrict);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzwrite.c:108:24: error: call to undeclared function 'write'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
108 | writ = write(state->fd, state->x.next, put);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzwrite.c:627:9: error: call to undeclared function 'close'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
627 | if (close(state->fd) == -1)
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzwrite.c:627:9: note: did you mean 'fclose'?
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/stdio.h:85:5: note: 'fclose' declared here
85 | int fclose(FILE *);
| ^
3 errors generated.
[0/156] Compiling ZLibC gzwrite.c
[0/156] Compiling ZLibC infback.c
[0/156] Compiling ZLibC gzclose.c
[0/156] Compiling ZLibC inflate.c
[0/156] Compiling ZLibC deflate.c
[0/156] Compiling ZLibC gzread.c
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:245:9: error: call to undeclared function 'lseek'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
245 | LSEEK(state->fd, 0, SEEK_END); /* so gzoffset() is correct */
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:15:17: note: expanded from macro 'LSEEK'
15 | # define LSEEK lseek
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:245:9: note: did you mean 'fseek'?
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:15:17: note: expanded from macro 'LSEEK'
15 | # define LSEEK lseek
| ^
/root/.swiftpm/swift-sdks/swift-wasm-6.1-RELEASE-wasm32-unknown-wasi.artifactbundle/6.1-RELEASE-wasm32-unknown-wasi/wasm32-unknown-wasi/WASI.sdk/include/wasm32-wasi/stdio.h:95:5: note: 'fseek' declared here
95 | int fseek(FILE *, long, int);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:251:24: error: call to undeclared function 'lseek'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
251 | state->start = LSEEK(state->fd, 0, SEEK_CUR);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:15:17: note: expanded from macro 'LSEEK'
15 | # define LSEEK lseek
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:335:9: error: call to undeclared function 'lseek'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
335 | if (LSEEK(state->fd, state->start, SEEK_SET) == -1)
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:15:17: note: expanded from macro 'LSEEK'
15 | # define LSEEK lseek
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:372:15: error: call to undeclared function 'lseek'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
372 | ret = LSEEK(state->fd, offset - (z_off64_t)state->x.have, SEEK_CUR);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:15:17: note: expanded from macro 'LSEEK'
15 | # define LSEEK lseek
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:458:14: error: call to undeclared function 'lseek'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
458 | offset = LSEEK(state->fd, 0, SEEK_CUR);
| ^
/host/spi-builder-workspace/.build/checkouts/zlib/zlib/gzlib.c:15:17: note: expanded from macro 'LSEEK'
15 | # define LSEEK lseek
| ^
5 errors generated.
[0/156] Compiling ZLibC gzlib.c
[0/156] Write swift-version-24593BA9C3E375BF.txt
BUILD FAILURE 6.1 wasm