The Swift Package Index logo.Swift Package Index

Build Information

Failed to build u, reference 1.1.0 (991bc9), with Swift 6.1 for Wasm on 19 Mar 2026 04:42:49 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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

Build Log

========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/rarestype/u.git
Reference: 1.1.0
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/rarestype/u
 * tag               1.1.0      -> FETCH_HEAD
HEAD is now at 991bc9f Merge pull request #8 from rarestype/atomics
Cloned https://github.com/rarestype/u.git
Revision (git rev-parse @):
991bc9fbe56be39ecb96a239ddd866f96a41fa0a
SUCCESS checkout https://github.com/rarestype/u.git at 1.1.0
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.1
Building package at path:  $PWD
https://github.com/rarestype/u.git
https://github.com/rarestype/u.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
  "dependencies" : [
    {
      "identity" : "dollup",
      "requirement" : {
        "range" : [
          {
            "lower_bound" : "1.0.1",
            "upper_bound" : "2.0.0"
          }
        ]
      },
      "type" : "sourceControl",
      "url" : "https://github.com/ordo-one/dollup"
    }
  ],
  "manifest_display_name" : "u",
  "name" : "u",
  "path" : "/host/spi-builder-workspace",
  "platforms" : [
    {
      "name" : "macos",
      "version" : "15.0"
    },
    {
      "name" : "ios",
      "version" : "18.0"
    },
    {
      "name" : "tvos",
      "version" : "18.0"
    },
    {
      "name" : "watchos",
      "version" : "11.0"
    }
  ],
  "products" : [
    {
      "name" : "CasesByIntegerEncodingMacro",
      "targets" : [
        "CasesByIntegerEncodingMacro"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "ISO",
      "targets" : [
        "ISO"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "UnixCalendar",
      "targets" : [
        "UnixCalendar"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    },
    {
      "name" : "UnixTime",
      "targets" : [
        "UnixTime"
      ],
      "type" : {
        "library" : [
          "automatic"
        ]
      }
    }
  ],
  "targets" : [
    {
      "c99name" : "UnixTime",
      "module_type" : "SwiftTarget",
      "name" : "UnixTime",
      "path" : "Sources/UnixTime",
      "product_memberships" : [
        "UnixCalendar",
        "UnixTime"
      ],
      "sources" : [
        "Duration (ext).swift",
        "DurationFormat.Unit.swift",
        "DurationFormat.swift",
        "Durations/Days.swift",
        "Durations/Hours.swift",
        "Durations/Microseconds.swift",
        "Durations/Milliseconds.swift",
        "Durations/Minutes.swift",
        "Durations/Nanoseconds.swift",
        "Durations/Seconds.swift",
        "Instants/UnixAttosecond.swift",
        "Instants/UnixDate.swift",
        "Instants/UnixMillisecond.swift",
        "QuantizedDuration.swift",
        "UnixInstant.swift",
        "UnixInterval.swift"
      ],
      "type" : "library"
    },
    {
      "c99name" : "UnixCalendar",
      "module_type" : "SwiftTarget",
      "name" : "UnixCalendar",
      "path" : "Sources/UnixCalendar",
      "product_memberships" : [
        "UnixCalendar"
      ],
      "sources" : [
        "Range (ext).swift",
        "Timestamp.Components.swift",
        "Timestamp.Date.swift",
        "Timestamp.Month.swift",
        "Timestamp.Sanity.swift",
        "Timestamp.Time.swift",
        "Timestamp.Weekday.swift",
        "Timestamp.Year.swift",
        "Timestamp.swift",
        "UnixAttosecond (ext).swift",
        "UnixDate (ext).swift",
        "UnixMillisecond (ext).swift"
      ],
      "target_dependencies" : [
        "ISO",
        "UnixTime"
      ],
      "type" : "library"
    },
    {
      "c99name" : "ISO",
      "module_type" : "SwiftTarget",
      "name" : "ISO",
      "path" : "Sources/ISO",
      "product_memberships" : [
        "ISO",
        "UnixCalendar"
      ],
      "sources" : [
        "ISO.Country (gen).swift",
        "ISO.Locale.swift",
        "ISO.Macrolanguage (gen).swift",
        "ISO.swift"
      ],
      "target_dependencies" : [
        "CasesByIntegerEncodingMacro"
      ],
      "type" : "library"
    },
    {
      "c99name" : "CasesByIntegerEncodingMacro",
      "module_type" : "SwiftTarget",
      "name" : "CasesByIntegerEncodingMacro",
      "path" : "Macros/CasesByIntegerEncodingMacro",
      "product_memberships" : [
        "CasesByIntegerEncodingMacro",
        "ISO",
        "UnixCalendar"
      ],
      "sources" : [
        "GenerateCasesByIntegerEncoding.swift",
        "RawRepresentableByIntegerEncoding.swift"
      ],
      "type" : "library"
    }
  ],
  "tools_version" : "6.2"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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:a7b4552feb759c014e60bb7d16019351f72ce4b9f19dbbaa081e1f5551c90672
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-0":/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:a7b4552feb759c014e60bb7d16019351f72ce4b9f19dbbaa081e1f5551c90672
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:wasm-6.1-latest
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
error: 'spi-builder-workspace': package 'spi-builder-workspace' is using Swift tools version 6.2.0 but the installed version is 6.1.0
BUILD FAILURE 6.1 wasm