Build Information
Failed to build swift-cardano-uplc, reference main (707df7), with Swift 6.1 for macOS (SPM) on 2 May 2026 07:37:57 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/Kingpin-Apps/swift-cardano-uplc.git
Reference: main
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/Kingpin-Apps/swift-cardano-uplc
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at 707df7b bump: version 0.1.3 → 0.1.4
Cloned https://github.com/Kingpin-Apps/swift-cardano-uplc.git
Revision (git rev-parse @):
707df7b756bd4dc3fdfd265794ed1a990c67b58b
SPI manifest file found: $PWD/.spi.yml
SUCCESS checkout https://github.com/Kingpin-Apps/swift-cardano-uplc.git at main
========================================
Build
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Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/Kingpin-Apps/swift-cardano-uplc.git
https://github.com/Kingpin-Apps/swift-cardano-uplc.git
{
"dependencies" : [
{
"identity" : "swift-cardano-core",
"requirement" : {
"range" : [
{
"lower_bound" : "0.3.16",
"upper_bound" : "1.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/Kingpin-Apps/swift-cardano-core.git"
},
{
"identity" : "swift-blst",
"requirement" : {
"range" : [
{
"lower_bound" : "0.1.2",
"upper_bound" : "1.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/Kingpin-Apps/swift-blst.git"
},
{
"identity" : "swift-ncal",
"requirement" : {
"range" : [
{
"lower_bound" : "0.2.2",
"upper_bound" : "1.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/Kingpin-Apps/swift-ncal.git"
},
{
"identity" : "cryptoswift",
"requirement" : {
"range" : [
{
"lower_bound" : "1.9.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/krzyzanowskim/CryptoSwift.git"
},
{
"identity" : "swift-secp256k1",
"requirement" : {
"exact" : [
"0.22.0"
]
},
"type" : "sourceControl",
"url" : "https://github.com/21-DOT-DEV/swift-secp256k1"
},
{
"identity" : "bigint",
"requirement" : {
"range" : [
{
"lower_bound" : "5.3.0",
"upper_bound" : "6.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/attaswift/BigInt.git"
},
{
"identity" : "swift-log",
"requirement" : {
"range" : [
{
"lower_bound" : "1.12.0",
"upper_bound" : "2.0.0"
}
]
},
"type" : "sourceControl",
"url" : "https://github.com/apple/swift-log.git"
}
],
"manifest_display_name" : "swift-cardano-uplc",
"name" : "swift-cardano-uplc",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "macos",
"version" : "15.0"
},
{
"name" : "ios",
"version" : "17.0"
}
],
"products" : [
{
"name" : "SwiftCardanoUPLC",
"targets" : [
"SwiftCardanoUPLC"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "SwiftCardanoUPLCTests",
"module_type" : "SwiftTarget",
"name" : "SwiftCardanoUPLCTests",
"path" : "Tests/SwiftCardanoUPLCTests",
"resources" : [
{
"path" : "/Users/admin/builder/spi-builder-workspace/Tests/SwiftCardanoUPLCTests/Resources",
"rule" : {
"copy" : {
}
}
}
],
"sources" : [
"ConformanceTests/BuiltinConformanceTests.swift",
"ConformanceTests/PlutusConformanceTests.swift",
"IntegrationTests/CEKMachineEdgeCaseTests.swift",
"IntegrationTests/FlatEncodingTests.swift",
"TestHelpers.swift",
"UnitTests/ASTTests.swift",
"UnitTests/PhaseTwoUnresolvableInputTests.swift"
],
"target_dependencies" : [
"SwiftCardanoUPLC"
],
"type" : "test"
},
{
"c99name" : "SwiftCardanoUPLC",
"module_type" : "SwiftTarget",
"name" : "SwiftCardanoUPLC",
"path" : "Sources/SwiftCardanoUPLC",
"product_dependencies" : [
"SwiftCardanoCore",
"SwiftBLST",
"SwiftNcal",
"CryptoSwift",
"P256K",
"libsecp256k1",
"BigInt",
"Logging"
],
"product_memberships" : [
"SwiftCardanoUPLC"
],
"sources" : [
"AST/Constant.swift",
"AST/Name.swift",
"AST/Program.swift",
"AST/Term.swift",
"AST/UPLCType.swift",
"Builtins/BuiltinRuntime.swift",
"Builtins/DefaultFunction.swift",
"Builtins/RIPEMD160.swift",
"DeBruijn/DeBruijnConverter.swift",
"Flat/BitReader.swift",
"Flat/BitWriter.swift",
"Flat/FlatDecoder.swift",
"Flat/FlatEncoder.swift",
"Machine/CEKMachine.swift",
"Machine/Context.swift",
"Machine/CostModel.swift",
"Machine/Environment.swift",
"Machine/EvalResult.swift",
"Machine/MachineError.swift",
"Machine/Value.swift",
"Parser/UPLCParser.swift",
"Pretty/PrettyPrinter.swift",
"TX/PhaseTwo.swift",
"TX/ScriptContext.swift"
],
"type" : "library"
}
],
"tools_version" : "6.0"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -Xswiftc -Xfrontend -Xswiftc -stats-output-dir -Xswiftc -Xfrontend -Xswiftc .stats
Fetching https://github.com/apple/swift-log.git from cache
Fetching https://github.com/Kingpin-Apps/swift-ncal.git
Fetching https://github.com/Kingpin-Apps/swift-cardano-core.git
Fetching https://github.com/krzyzanowskim/CryptoSwift.git
Fetching https://github.com/attaswift/BigInt.git
Fetching https://github.com/21-DOT-DEV/swift-secp256k1
Fetching https://github.com/Kingpin-Apps/swift-blst.git
[1/97] Fetching swift-blst
[34/590] Fetching swift-blst, swift-ncal
[153/4338] Fetching swift-blst, swift-ncal, swift-cardano-core
[154/9216] Fetching swift-blst, swift-ncal, swift-cardano-core, bigint
[325/22603] Fetching swift-blst, swift-ncal, swift-cardano-core, bigint, cryptoswift
Fetched https://github.com/apple/swift-log.git from cache (1.01s)
[10547/33301] Fetching swift-blst, swift-ncal, swift-cardano-core, bigint, cryptoswift, swift-secp256k1
Fetched https://github.com/krzyzanowskim/CryptoSwift.git from cache (12.57s)
Fetched https://github.com/Kingpin-Apps/swift-blst.git from cache (12.57s)
Fetched https://github.com/21-DOT-DEV/swift-secp256k1 from cache (12.57s)
Fetched https://github.com/attaswift/BigInt.git from cache (12.58s)
Fetched https://github.com/Kingpin-Apps/swift-ncal.git from cache (12.58s)
Fetched https://github.com/Kingpin-Apps/swift-cardano-core.git from cache (12.58s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.12.0 (13.18s)
Computing version for https://github.com/21-DOT-DEV/swift-secp256k1
Computed https://github.com/21-DOT-DEV/swift-secp256k1 at 0.22.0 (0.61s)
Computing version for https://github.com/Kingpin-Apps/swift-ncal.git
error: Dependencies could not be resolved because 'swift-ncal' >= 0.2.1 contains incompatible tools version (6.2.0) and root depends on 'swift-ncal' 0.2.2..<1.0.0.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
Updating https://github.com/apple/swift-log.git
Updating https://github.com/Kingpin-Apps/swift-cardano-core.git
Updating https://github.com/attaswift/BigInt.git
Updating https://github.com/Kingpin-Apps/swift-ncal.git
Updating https://github.com/krzyzanowskim/CryptoSwift.git
Updating https://github.com/Kingpin-Apps/swift-blst.git
Updating https://github.com/21-DOT-DEV/swift-secp256k1
Updated https://github.com/Kingpin-Apps/swift-ncal.git (0.44s)
Updated https://github.com/Kingpin-Apps/swift-cardano-core.git (0.46s)
Updated https://github.com/apple/swift-log.git (0.57s)
Updated https://github.com/Kingpin-Apps/swift-blst.git (0.60s)
Updated https://github.com/attaswift/BigInt.git (0.60s)
Updated https://github.com/21-DOT-DEV/swift-secp256k1 (0.60s)
Updated https://github.com/krzyzanowskim/CryptoSwift.git (0.60s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.12.0 (0.69s)
Computing version for https://github.com/21-DOT-DEV/swift-secp256k1
Computed https://github.com/21-DOT-DEV/swift-secp256k1 at 0.22.0 (0.03s)
Computing version for https://github.com/Kingpin-Apps/swift-ncal.git
error: Dependencies could not be resolved because 'swift-ncal' >= 0.2.1 contains incompatible tools version (6.2.0) and root depends on 'swift-ncal' 0.2.2..<1.0.0.
BUILD FAILURE 6.1 macosSpm