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Build Information

Failed to build SwiftMCP, reference main (fcbe9f), with Swift 6.1 for Wasm on 10 Oct 2026 02:35:09 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 5.1.1
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Cocoanetics/SwiftMCP.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/Cocoanetics/SwiftMCP
 * branch            main       -> FETCH_HEAD
 * [new branch]      main       -> origin/main
HEAD is now at fcbe9f4 Allow swift-syntax 604 (#203)
Cloned https://github.com/Cocoanetics/SwiftMCP.git
Revision (git rev-parse @):
fcbe9f43a0e87a1cfcea5cb8edd0e38a48afbc2f
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Cocoanetics/SwiftMCP.git at main
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Cocoanetics/SwiftMCP.git
https://github.com/Cocoanetics/SwiftMCP.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:wasm-6.1-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 saguaro1/spi-images
Digest: sha256:005e294ea72e7f7733559677ac003354f37dc6afb35c5bbab6bc9a95fc174f44
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
Fetching https://github.com/swift-server/swift-service-lifecycle.git
Fetching https://github.com/Cocoanetics/JSONFoundation.git
Fetching https://github.com/apple/swift-crypto.git
Fetching https://github.com/swiftlang/swift-syntax.git
Fetching https://github.com/apple/swift-certificates.git
[1/632] Fetching jsonfoundation
[633/3499] Fetching jsonfoundation, swift-service-lifecycle
[949/22119] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto
[1007/29728] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-certificates
Fetching https://github.com/Cocoanetics/SwiftCross.git
Fetched https://github.com/apple/swift-certificates.git from cache (0.99s)
Fetching https://github.com/swiftlang/swift-docc-plugin.git
[5548/22119] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto
[5922/22239] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swiftcross
Fetched https://github.com/Cocoanetics/SwiftCross.git from cache (0.48s)
Fetching https://github.com/apple/swift-nio-extras.git
[6665/22119] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto
[7038/24464] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-docc-plugin
[8390/104875] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-docc-plugin, swift-syntax
Fetched https://github.com/swiftlang/swift-docc-plugin.git from cache (0.66s)
[12743/102530] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax
Fetching https://github.com/apple/swift-http-types.git
[14352/109232] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-nio-extras
[35866/111171] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-nio-extras, swift-http-types
Fetched https://github.com/apple/swift-nio-extras.git from cache (0.88s)
[31254/104469] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-http-types
Fetching https://github.com/apple/swift-nio.git
Fetched https://github.com/apple/swift-http-types.git from cache (0.56s)
Fetching https://github.com/apple/swift-argument-parser.git
[34181/102530] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax
[49460/121626] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-argument-parser
[73733/207988] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-argument-parser, swift-nio
Fetched https://github.com/apple/swift-argument-parser.git from cache (1.65s)
[106371/188892] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-nio
Fetching https://github.com/apple/swift-log.git
[157803/197149] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-nio, swift-log
Fetched https://github.com/apple/swift-log.git from cache (1.18s)
[165575/188892] Fetching jsonfoundation, swift-service-lifecycle, swift-crypto, swift-syntax, swift-nio
Fetched https://github.com/swift-server/swift-service-lifecycle.git from cache (12.73s)
Fetched https://github.com/Cocoanetics/JSONFoundation.git from cache (12.74s)
Fetched https://github.com/apple/swift-crypto.git from cache (12.79s)
Fetched https://github.com/swiftlang/swift-syntax.git from cache (12.83s)
Fetched https://github.com/apple/swift-nio.git from cache (10.85s)
Computing version for https://github.com/Cocoanetics/SwiftCross.git
Computed https://github.com/Cocoanetics/SwiftCross.git at 1.2.0 (13.41s)
Computing version for https://github.com/Cocoanetics/JSONFoundation.git
Computed https://github.com/Cocoanetics/JSONFoundation.git at 3.2.1 (1.83s)
Fetching https://github.com/swiftlang/swift-subprocess.git
[1/4942] Fetching swift-subprocess
Fetched https://github.com/swiftlang/swift-subprocess.git from cache (0.85s)
Computing version for https://github.com/swiftlang/swift-subprocess.git
Computed https://github.com/Cocoanetics/SwiftCross.git at 1.2.0 (0.00s)
error: Dependencies could not be resolved because 'swift-subprocess' >= 0.5.0 contains incompatible tools version (6.2.0) and root depends on 'jsonfoundation' 3.1.0..<4.0.0.
'jsonfoundation' >= 3.1.0 practically depends on 'swift-subprocess' 0.5.0..<2.0.0 because 'jsonfoundation' 3.2.0 depends on 'swift-subprocess' 0.5.0..<1.0.0 and 'jsonfoundation' 3.2.1 depends on 'swift-subprocess' 0.5.0..<2.0.0.
'jsonfoundation' {3.1.0..<3.2.0, 3.2.2..<4.0.0} practically depends on 'swift-subprocess' 0.5.0..<1.0.0 because no versions of 'jsonfoundation' match the requirement {3.1.1..<3.2.0, 3.2.2..<4.0.0} and 'jsonfoundation' 3.1.0 depends on 'swift-subprocess' 0.5.0..<1.0.0.
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344843-1":/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-6.1-latest swift build --swift-sdk wasm32-unknown-wasi 2>&1
wasm-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:005e294ea72e7f7733559677ac003354f37dc6afb35c5bbab6bc9a95fc174f44
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:wasm-6.1-latest
Updating https://github.com/swiftlang/swift-syntax.git
Updating https://github.com/apple/swift-certificates.git
Updating https://github.com/apple/swift-crypto.git
Updating https://github.com/Cocoanetics/JSONFoundation.git
Updating https://github.com/swift-server/swift-service-lifecycle.git
Updated https://github.com/swift-server/swift-service-lifecycle.git (0.33s)
Updating https://github.com/swiftlang/swift-docc-plugin.git
Updated https://github.com/Cocoanetics/JSONFoundation.git (0.43s)
Updated https://github.com/apple/swift-crypto.git (0.45s)
Updated https://github.com/apple/swift-certificates.git (0.46s)
Updating https://github.com/apple/swift-http-types.git
Updating https://github.com/apple/swift-nio-extras.git
Updating https://github.com/Cocoanetics/SwiftCross.git
Updated https://github.com/swiftlang/swift-syntax.git (0.70s)
Updated https://github.com/swiftlang/swift-docc-plugin.git (0.43s)
Updating https://github.com/apple/swift-log.git
Updating https://github.com/apple/swift-nio.git
Updated https://github.com/apple/swift-http-types.git (0.33s)
Updated https://github.com/apple/swift-nio-extras.git (0.32s)
Updated https://github.com/Cocoanetics/SwiftCross.git (0.29s)
Updating https://github.com/apple/swift-argument-parser.git
Updated https://github.com/apple/swift-log.git (0.47s)
Updated https://github.com/apple/swift-nio.git (0.46s)
Updated https://github.com/apple/swift-argument-parser.git (0.31s)
Computing version for https://github.com/Cocoanetics/SwiftCross.git
Computed https://github.com/Cocoanetics/SwiftCross.git at 1.2.0 (1.93s)
Computing version for https://github.com/Cocoanetics/JSONFoundation.git
Computed https://github.com/Cocoanetics/JSONFoundation.git at 3.2.1 (1.76s)
Updating https://github.com/swiftlang/swift-subprocess.git
Updated https://github.com/swiftlang/swift-subprocess.git (0.32s)
Computing version for https://github.com/swiftlang/swift-subprocess.git
Computed https://github.com/Cocoanetics/SwiftCross.git at 1.2.0 (0.00s)
error: Dependencies could not be resolved because 'swift-subprocess' >= 0.5.0 contains incompatible tools version (6.2.0) and root depends on 'jsonfoundation' 3.1.0..<4.0.0.
'jsonfoundation' >= 3.1.0 practically depends on 'swift-subprocess' 0.5.0..<2.0.0 because 'jsonfoundation' 3.2.0 depends on 'swift-subprocess' 0.5.0..<1.0.0 and 'jsonfoundation' 3.2.1 depends on 'swift-subprocess' 0.5.0..<2.0.0.
'jsonfoundation' {3.1.0..<3.2.0, 3.2.2..<4.0.0} practically depends on 'swift-subprocess' 0.5.0..<1.0.0 because no versions of 'jsonfoundation' match the requirement {3.1.1..<3.2.0, 3.2.2..<4.0.0} and 'jsonfoundation' 3.1.0 depends on 'swift-subprocess' 0.5.0..<1.0.0.
BUILD FAILURE 6.1 wasm