Swift Package Index

Build Information

Failed to build SwiftTiktoken, reference 0.0.1 (e088d5), with Swift 6.2 for Wasm on 4 Feb 2026 07:19:48 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.68.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/DePasqualeOrg/swift-tiktoken.git
Reference: 0.0.1
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/DePasqualeOrg/swift-tiktoken
 * tag               0.0.1      -> FETCH_HEAD
HEAD is now at e088d53 Initial commit
Cloned https://github.com/DePasqualeOrg/swift-tiktoken.git
Revision (git rev-parse @):
e088d534d80dd1875ca3edfd69a16a6c25ab84c4
SUCCESS checkout https://github.com/DePasqualeOrg/swift-tiktoken.git at 0.0.1
========================================
Build
========================================
Selected platform:         wasm
Swift version:             6.2
Building package at path:  $PWD
https://github.com/DePasqualeOrg/swift-tiktoken.git
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-1":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest swift build --swift-sdk wasm32-unknown-wasip1 2>&1
wasm-6.2-latest: Pulling from finestructure/spi-images
Digest: sha256:c50555b47c4db0b0576f9f25702fbe2fdff28194c4a4f4c23a7dce4b3504c85e
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:wasm-6.2-latest
warning: multiple Swift SDKs match target triple `wasm32-unknown-wasip1` and host triple x86_64-unknown-linux-gnu, selected one at /root/.swiftpm/swift-sdks/swift-6.2-RELEASE_wasm.artifactbundle/swift-6.2-RELEASE_wasm/wasm32-unknown-wasip1/swift-sdk.json
Building for debugging...
[0/7] Write sources
[2/7] Write swift-version-24593BA9C3E375BF.txt
[4/12] Compiling SwiftTiktoken TiktokenError.swift
[5/12] Compiling SwiftTiktoken EncodingLoader.swift
/host/spi-builder-workspace/Sources/SwiftTiktoken/EncodingLoader.swift:121:42: error: type 'URLSession' (aka 'AnyObject') has no member 'shared'
119 |
120 |     // Download the data
121 |     let (data, _) = try await URLSession.shared.data(from: url)
    |                                          `- error: type 'URLSession' (aka 'AnyObject') has no member 'shared'
122 |
123 |     // Verify hash if available
[6/12] Compiling SwiftTiktoken CoreBPE.swift
[7/12] Emitting module SwiftTiktoken
[8/12] Compiling SwiftTiktoken BytePairEncoding.swift
/host/spi-builder-workspace/Sources/SwiftTiktoken/BytePairEncoding.swift:56:7: warning: variable 'partStart' was never mutated; consider changing to 'let' constant
 54 |   // - partPrev: index of the previous active part (-1 = start of list)
 55 |   let n = piece.count
 56 |   var partStart = ContiguousArray<Int>(unsafeUninitializedCapacity: n + 1) { buffer, count in
    |       `- warning: variable 'partStart' was never mutated; consider changing to 'let' constant
 57 |     for i in 0 ... n {
 58 |       buffer[i] = i
BUILD FAILURE 6.2 wasm