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Build Information

Failed to build SwiftMCP, reference main (fcbe9f), with Swift 6.1 for Android on 10 Oct 2026 02:33:11 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 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:         android
Swift version:             6.1
Building package at path:  $PWD
https://github.com/Cocoanetics/SwiftMCP.git
https://github.com/Cocoanetics/SwiftMCP.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344847-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 -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
android-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:396310cef4466ceb116ed5462b0b92d4deb353c0dad749b406b7fd226f6db9af
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.1-latest
Fetching https://github.com/apple/swift-crypto.git
Fetching https://github.com/swift-server/swift-service-lifecycle.git
Fetching https://github.com/apple/swift-certificates.git
Fetching https://github.com/Cocoanetics/JSONFoundation.git
Fetching https://github.com/Cocoanetics/SwiftCross.git
[1/120] Fetching swiftcross
[89/752] Fetching swiftcross, jsonfoundation
[165/19372] Fetching swiftcross, jsonfoundation, swift-crypto
[318/22239] Fetching swiftcross, jsonfoundation, swift-crypto, swift-service-lifecycle
[814/29848] Fetching swiftcross, jsonfoundation, swift-crypto, swift-service-lifecycle, swift-certificates
Fetched https://github.com/Cocoanetics/SwiftCross.git from cache (0.41s)
Fetching https://github.com/swiftlang/swift-docc-plugin.git
[1111/29728] Fetching jsonfoundation, swift-crypto, swift-service-lifecycle, swift-certificates
Fetched https://github.com/Cocoanetics/JSONFoundation.git from cache (0.56s)
Fetched https://github.com/swift-server/swift-service-lifecycle.git from cache (0.56s)
Fetched https://github.com/apple/swift-certificates.git from cache (0.56s)
Fetching https://github.com/apple/swift-http-types.git
Fetching https://github.com/apple/swift-nio.git
[2049/18620] Fetching swift-crypto
[4656/20965] Fetching swift-crypto, swift-docc-plugin
Fetched https://github.com/swiftlang/swift-docc-plugin.git from cache (0.49s)
Fetching https://github.com/apple/swift-argument-parser.git
[16200/18620] Fetching swift-crypto
[17504/20559] Fetching swift-crypto, swift-http-types
Fetching https://github.com/swiftlang/swift-syntax.git
Fetched https://github.com/apple/swift-crypto.git from cache (1.25s)
Fetching https://github.com/apple/swift-log.git
[1/86362] Fetching swift-nio
[2/105458] Fetching swift-nio, swift-argument-parser
[15595/113715] Fetching swift-nio, swift-argument-parser, swift-log
Fetched https://github.com/apple/swift-log.git from cache (0.50s)
[40687/105458] Fetching swift-nio, swift-argument-parser
Fetched https://github.com/apple/swift-argument-parser.git from cache (0.89s)
[24182/86362] Fetching swift-nio
[59591/166773] Fetching swift-nio, swift-syntax
Fetching https://github.com/apple/swift-nio-extras.git
Fetched https://github.com/apple/swift-http-types.git from cache (4.42s)
Fetched https://github.com/apple/swift-nio.git from cache (4.46s)
Fetched https://github.com/swiftlang/swift-syntax.git from cache (3.88s)
[1/6702] Fetching swift-nio-extras
Fetched https://github.com/apple/swift-nio-extras.git from cache (0.59s)
Computing version for https://github.com/Cocoanetics/SwiftCross.git
Computed https://github.com/Cocoanetics/SwiftCross.git at 1.2.0 (5.79s)
Computing version for https://github.com/Cocoanetics/JSONFoundation.git
Computed https://github.com/Cocoanetics/JSONFoundation.git at 3.2.1 (0.98s)
Fetching https://github.com/swiftlang/swift-subprocess.git
[1/4942] Fetching swift-subprocess
Fetched https://github.com/swiftlang/swift-subprocess.git from cache (0.61s)
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-54344847-0":/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:android-6.1-latest swift build --swift-sdk aarch64-unknown-linux-android24 2>&1
android-6.1-latest: Pulling from saguaro1/spi-images
Digest: sha256:396310cef4466ceb116ed5462b0b92d4deb353c0dad749b406b7fd226f6db9af
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.1-latest
Updating https://github.com/swift-server/swift-service-lifecycle.git
Updating https://github.com/Cocoanetics/SwiftCross.git
Updating https://github.com/Cocoanetics/JSONFoundation.git
Updating https://github.com/swiftlang/swift-syntax.git
Updating https://github.com/apple/swift-crypto.git
Updating https://github.com/apple/swift-certificates.git
Updated https://github.com/swift-server/swift-service-lifecycle.git (0.24s)
Updating https://github.com/swiftlang/swift-docc-plugin.git
Updated https://github.com/swiftlang/swift-docc-plugin.git (0.24s)
Updating https://github.com/apple/swift-nio-extras.git
Updated https://github.com/apple/swift-certificates.git (0.49s)
Updated https://github.com/Cocoanetics/JSONFoundation.git (0.49s)
Updated https://github.com/swiftlang/swift-syntax.git (0.49s)
Updated https://github.com/Cocoanetics/SwiftCross.git (0.49s)
Updated https://github.com/apple/swift-crypto.git (0.49s)
Updating https://github.com/apple/swift-nio.git
Updating https://github.com/apple/swift-log.git
Updating https://github.com/apple/swift-argument-parser.git
Updated https://github.com/apple/swift-log.git (0.24s)
Updated https://github.com/apple/swift-nio-extras.git (0.27s)
Updated https://github.com/apple/swift-argument-parser.git (0.27s)
Updated https://github.com/apple/swift-nio.git (0.36s)
Updating https://github.com/apple/swift-http-types.git
Updated https://github.com/apple/swift-http-types.git (0.21s)
Computing version for https://github.com/Cocoanetics/SwiftCross.git
Computed https://github.com/Cocoanetics/SwiftCross.git at 1.2.0 (1.29s)
Computing version for https://github.com/Cocoanetics/JSONFoundation.git
Computed https://github.com/Cocoanetics/JSONFoundation.git at 3.2.1 (0.99s)
Updating https://github.com/swiftlang/swift-subprocess.git
Updated https://github.com/swiftlang/swift-subprocess.git (0.31s)
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 android