Swift Package IndexBuild Information
Failed to build SwiftRegressor, reference main (eb24da), with Swift 6.3 for Android on 12 Apr 2026 16:23:03 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/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:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.70.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/openalloc/SwiftRegressor.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/openalloc/SwiftRegressor
* branch main -> FETCH_HEAD
* [new branch] main -> origin/main
HEAD is now at eb24dad Simplify See Also section of README
Cloned https://github.com/openalloc/SwiftRegressor.git
Revision (git rev-parse @):
eb24dad82dea5d2cc198abdc63079dcba7b3b8ef
SUCCESS checkout https://github.com/openalloc/SwiftRegressor.git at main
========================================
Build
========================================
Selected platform: android
Swift version: 6.3
Building package at path: $PWD
https://github.com/openalloc/SwiftRegressor.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-0":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest swift build --swift-sdk aarch64-unknown-linux-android28 2>&1
android-6.3-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:9008270ea37a55e78725e6225015adb5eff8582da520c5232bf0499f32c36dc4
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:android-6.3-latest
Fetching https://github.com/apple/swift-numerics
[1/6416] Fetching swift-numerics
Fetched https://github.com/apple/swift-numerics from cache (1.41s)
Computing version for https://github.com/apple/swift-numerics
Computed https://github.com/apple/swift-numerics at 1.1.1 (2.33s)
Creating working copy for https://github.com/apple/swift-numerics
Working copy of https://github.com/apple/swift-numerics resolved at 1.1.1
Building for debugging...
[0/6] Write sources
[4/6] Compiling _NumericsShims _NumericsShims.c
[5/6] Write swift-version--4F562202D5529B1.txt
[7/17] Compiling RealModule RealFunctions.swift
[8/18] Compiling RealModule ElementaryFunctions.swift
[9/18] Compiling RealModule Float+Real.swift
[10/18] Compiling RealModule AugmentedArithmetic.swift
[11/18] Compiling RealModule Double+Real.swift
[12/18] Emitting module RealModule
[13/18] Compiling RealModule AlgebraicField.swift
[14/18] Compiling RealModule ApproximateEquality.swift
[15/18] Compiling RealModule Real.swift
[16/18] Compiling RealModule Float80+Real.swift
[17/18] Compiling RealModule Float16+Real.swift
[18/18] Compiling RealModule RelaxedArithmetic.swift
[20/30] Compiling ComplexModule Complex+Numeric.swift
[21/30] Compiling ComplexModule Polar.swift
[22/31] Compiling ComplexModule Complex+StringConvertible.swift
[23/31] Compiling ComplexModule Complex.swift
[24/31] Compiling ComplexModule Scale.swift
[25/31] Compiling ComplexModule Complex+Hashable.swift
[26/31] Compiling ComplexModule Complex+IntegerLiteral.swift
[27/31] Compiling ComplexModule Complex+AdditiveArithmetic.swift
[28/31] Compiling ComplexModule Complex+AlgebraicField.swift
[29/31] Emitting module ComplexModule
[30/31] Compiling ComplexModule Complex+Codable.swift
[31/31] Compiling ComplexModule Complex+ElementaryFunctions.swift
[33/34] Compiling Numerics Numerics.swift
[34/34] Emitting module Numerics
error: emit-module command failed with exit code 1 (use -v to see invocation)
[36/38] Compiling Regressor BaseRegressor.swift
[37/38] Emitting module Regressor
/host/spi-builder-workspace/Sources/LinearRegressor.swift:46:63: error: cannot convert value of type 'Double' to expected argument type 'T'
44 | }
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
| `- error: cannot convert value of type 'Double' to expected argument type 'T'
47 | y: sqrt(summedSquareError.y / (count - 1)))
48 |
/host/spi-builder-workspace/Sources/LinearRegressor.swift:47:63: error: cannot convert value of type 'Double' to expected argument type 'T'
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
47 | y: sqrt(summedSquareError.y / (count - 1)))
| `- error: cannot convert value of type 'Double' to expected argument type 'T'
48 |
49 | /// Pearson's Correlation (r)
/host/spi-builder-workspace/Sources/LinearRegressor.swift:46:88: error: cannot convert value of type 'T' to expected argument type 'Double'
44 | }
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
| `- error: cannot convert value of type 'T' to expected argument type 'Double'
47 | y: sqrt(summedSquareError.y / (count - 1)))
48 |
/host/spi-builder-workspace/Sources/LinearRegressor.swift:47:88: error: cannot convert value of type 'T' to expected argument type 'Double'
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
47 | y: sqrt(summedSquareError.y / (count - 1)))
| `- error: cannot convert value of type 'T' to expected argument type 'Double'
48 |
49 | /// Pearson's Correlation (r)
[38/38] Compiling Regressor LinearRegressor.swift
/host/spi-builder-workspace/Sources/LinearRegressor.swift:46:63: error: cannot convert value of type 'Double' to expected argument type 'T'
44 | }
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
| `- error: cannot convert value of type 'Double' to expected argument type 'T'
47 | y: sqrt(summedSquareError.y / (count - 1)))
48 |
/host/spi-builder-workspace/Sources/LinearRegressor.swift:47:63: error: cannot convert value of type 'Double' to expected argument type 'T'
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
47 | y: sqrt(summedSquareError.y / (count - 1)))
| `- error: cannot convert value of type 'Double' to expected argument type 'T'
48 |
49 | /// Pearson's Correlation (r)
/host/spi-builder-workspace/Sources/LinearRegressor.swift:46:88: error: cannot convert value of type 'T' to expected argument type 'Double'
44 | }
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
| `- error: cannot convert value of type 'T' to expected argument type 'Double'
47 | y: sqrt(summedSquareError.y / (count - 1)))
48 |
/host/spi-builder-workspace/Sources/LinearRegressor.swift:47:88: error: cannot convert value of type 'T' to expected argument type 'Double'
45 |
46 | public lazy var sampleStandardDeviation: Point = .init(x: sqrt(summedSquareError.x / (count - 1)),
47 | y: sqrt(summedSquareError.y / (count - 1)))
| `- error: cannot convert value of type 'T' to expected argument type 'Double'
48 |
49 | /// Pearson's Correlation (r)
BUILD FAILURE 6.3 android