Build Information
Failed to build swift-nio-imap, reference main (0de989), with Swift 6.4 for Android on 23 Sep 2026 00:56:21 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/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-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1Build Log
========================================
RunAll
========================================
Builder version: 5.1.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/OlofT/swift-nio-imap.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/OlofT/swift-nio-imap
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 0de989f allow crosscompile
Cloned https://github.com/OlofT/swift-nio-imap.git
Revision (git rev-parse @):
0de989fc2543bda6508644092f91284b1a8e34f9
SUCCESS checkout https://github.com/OlofT/swift-nio-imap.git at main
========================================
Build
========================================
Selected platform: android
Swift version: 6.4
Building package at path: $PWD
https://github.com/OlofT/swift-nio-imap.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-54344844-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/saguaro1/spi-images:android-6.4-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.4-latest: Pulling from saguaro1/spi-images
Digest: sha256:abadcff584c273feba50641b454858d377ba30b35ea7287a94f45ebd8afd0ea0
Status: Image is up to date for registry.gitlab.com/saguaro1/spi-images:android-6.4-latest
Fetching https://github.com/apple/swift-se0270-range-set.git
Fetching https://github.com/apple/swift-log
Fetching https://github.com/apple/swift-nio
Fetching https://github.com/apple/swift-collections.git
Fetching https://github.com/apple/swift-nio-ssl
[1/8148] Fetching swift-log
[3016/8224] Fetching swift-log, swift-se0270-range-set
[4701/24289] Fetching swift-log, swift-se0270-range-set, swift-nio-ssl
Fetched https://github.com/apple/swift-se0270-range-set.git (0.50s)
[8630/24213] Fetching swift-log, swift-nio-ssl
Fetched https://github.com/apple/swift-log (0.55s)
[1286/16065] Fetching swift-nio-ssl
[3375/43727] Fetching swift-nio-ssl, swift-collections
[36813/129792] Fetching swift-nio-ssl, swift-collections, swift-nio
Fetched https://github.com/apple/swift-nio-ssl (1.21s)
[58646/113727] Fetching swift-collections, swift-nio
Fetched https://github.com/apple/swift-collections.git (3.25s)
Fetched https://github.com/apple/swift-nio (3.28s)
Computing version for https://github.com/apple/swift-se0270-range-set.git
Computed https://github.com/apple/swift-se0270-range-set.git at 1.0.1 (3.48s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.6.0 (0.32s)
Computing version for https://github.com/apple/swift-nio-ssl
Computed https://github.com/apple/swift-nio-ssl at 2.37.5 (0.24s)
Computing version for https://github.com/apple/swift-nio
Computed https://github.com/apple/swift-nio at 2.103.0 (0.34s)
Fetching https://github.com/apple/swift-atomics.git
Fetching https://github.com/apple/swift-system.git
[1/1875] Fetching swift-atomics
[1876/8791] Fetching swift-atomics, swift-system
Fetched https://github.com/apple/swift-atomics.git (0.64s)
Fetched https://github.com/apple/swift-system.git (0.64s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.3.1 (0.82s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.8.1 (0.22s)
Computing version for https://github.com/apple/swift-log
Computed https://github.com/apple/swift-log at 1.15.1 (0.20s)
Creating working copy for https://github.com/apple/swift-log
Working copy of https://github.com/apple/swift-log resolved at 1.15.1
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.6.0
Creating working copy for https://github.com/apple/swift-nio-ssl
Working copy of https://github.com/apple/swift-nio-ssl resolved at 2.37.5
Creating working copy for https://github.com/apple/swift-nio
Working copy of https://github.com/apple/swift-nio resolved at 2.103.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.8.1
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.3.1
Creating working copy for https://github.com/apple/swift-se0270-range-set.git
Working copy of https://github.com/apple/swift-se0270-range-set.git resolved at 1.0.1
Building for debugging...
[Computing dependencies]
[Pre-planning 1 / 1044]
[Planning deferred tasks]
[Starting]
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error: SwiftCompile normal aarch64 /host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile GrammarParser+Append.swift
error: SwiftCompile normal aarch64 /host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Body.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile GrammarParser+Body.swift
error: SwiftCompile normal aarch64 /host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Commands.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile GrammarParser+Commands.swift
error: SwiftCompile normal aarch64 /host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Date.swift failed with a nonzero exit code. Command line: cd /host
builtin-SwiftPerFileCompile GrammarParser+Date.swift
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m |- [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m|[0;0m `- [1;39mnote: [1;39madd an explicit type annotation to silence this warning[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Body.swift:24:5: [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m |- [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m|[0;0m `- [1;39mnote: [1;39madd an explicit type annotation to silence this warning[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Append.swift:24:5: [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m `- [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Commands.swift:24:5: [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m |- [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m|[0;0m `- [1;39mnote: [1;39madd an explicit type annotation to silence this warning[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Body.swift:24:5: [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m `- [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Date.swift:24:5: [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m |- [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m|[0;0m `- [1;39mnote: [1;39madd an explicit type annotation to silence this warning[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Commands.swift:24:5: [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m `- [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Entry.swift:24:5: [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m |- [1;33mwarning: [1;39mconstant 'badOS' inferred to have type 'Never', which is an enum with no cases[0;0m
[0;36m|[0;0m `- [1;39mnote: [1;39madd an explicit type annotation to silence this warning[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Date.swift:24:5: [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m22 |[0;0m import ucrt
[0;36m23 |[0;0m #else
[0;36m24 |[0;0m let badOS = { fatalError("unsupported OS") }()
[0;36m|[0;0m `- [1;31merror: [1;39minvalid redeclaration of 'badOS'[0;0m
[0;36m25 |[0;0m #endif
[0;36m26 |[0;0m
/host/spi-builder-workspace/Sources/NIOIMAPCore/Parser/Grammar/GrammarParser+Date.swift:82:13: [1;31merror: [1;39mcannot find 'isalnum' in scope[0;0m
[0;36m80 |[0;0m func parseDateMonth(buffer: inout ParseBuffer, tracker: StackTracker) throws -> Int {
[0;36m81 |[0;0m let parsed = try PL.parseOneOrMoreCharacters(buffer: &buffer, tracker: tracker) { char -> Bool in
[0;36m82 |[0;0m [4;39misalnum[0;0m(Int32(char)) != 0
[0;36m|[0;0m `- [1;31merror: [1;39mcannot find 'isalnum' in scope[0;0m
[0;36m83 |[0;0m }
[0;36m84 |[0;0m let string = try ParserLibrary.parseBufferAsUTF8(parsed)
Failed frontend command:
/root/.local/share/swiftly/toolchains/6.4.x-snapshot-2026-09-04/usr/bin/swift-frontend -frontend -c -filelist /host/spi-builder-workspace/.build/out/Intermediates.noindex/swift-nio-imap.build/Debug-android-aarch64/NIOIMAPCore-t.build/Objects-normal/aarch64/sources-1 -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/Tagged/TaggedExtension.swift -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/Tagged/TaggedExtensiontComp.swift -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/UID/IUID.swift -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/UID/MessageIdentifier.swift -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/UID/MessageIdentifierRange.swift -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/UID/MessageIdentifierSet.swift -primary-file /host/spi-builder-workspace/Sources/NIOIMAPCore/Grammar/UID/MessageIdentifierSetNonEmpty.swift -primary-file 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[847 / 899] NIOPosix
error: Build failed
BUILD FAILURE 6.4 android