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Track the adoption of Swift 6 strict concurrency checks for data race safety. How many packages are Ready for Swift 6?

Build Information

Failed to build recommender, reference master (20475a), with Swift 6.1 for Linux on 25 Apr 2025 18:13:03 UTC.

Build Command

bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1

Build Log

========================================
RunAll
========================================
Builder version: 4.61.0
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/mborsten/recommender.git
Reference: master
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/mborsten/recommender
 * branch            master     -> FETCH_HEAD
 * [new branch]      master     -> origin/master
HEAD is now at 20475ae Some cleanup
Cloned https://github.com/mborsten/recommender.git
Revision (git rev-parse @):
20475ae780d16d02254fe8442fa2f7bd6a4fd0a1
SUCCESS checkout https://github.com/mborsten/recommender.git at master
========================================
Build
========================================
Selected platform:         linux
Swift version:             6.1
Building package at path:  $PWD
https://github.com/mborsten/recommender.git
https://github.com/mborsten/recommender.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
error: Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu -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
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
Fetching https://github.com/vapor/vapor.git
Fetching https://github.com/vapor/fluent.git
[1/13407] Fetching fluent
[5498/87720] Fetching fluent, vapor
Fetched https://github.com/vapor/fluent.git from cache (0.54s)
[14863/74313] Fetching vapor
Fetched https://github.com/vapor/vapor.git from cache (1.70s)
Computing version for https://github.com/vapor/fluent.git
Computed https://github.com/vapor/fluent.git at 4.12.0 (2.24s)
Fetching https://github.com/vapor/fluent-kit.git
[1/13241] Fetching fluent-kit
Fetched https://github.com/vapor/fluent-kit.git from cache (0.86s)
Computing version for https://github.com/vapor/fluent-kit.git
Computed https://github.com/vapor/fluent-kit.git at 1.52.1 (1.74s)
Fetching https://github.com/vapor/sql-kit.git
Fetching https://github.com/apple/swift-log.git
Fetching https://github.com/apple/swift-nio.git
[1/3836] Fetching swift-log
[1728/9819] Fetching swift-log, sql-kit
[9820/85250] Fetching swift-log, sql-kit, swift-nio
Fetched https://github.com/vapor/sql-kit.git from cache (6.87s)
Fetched https://github.com/apple/swift-log.git from cache (6.89s)
Fetched https://github.com/apple/swift-nio.git from cache (7.02s)
Computing version for https://github.com/apple/swift-log.git
Computed https://github.com/apple/swift-log.git at 1.6.3 (7.93s)
Computing version for https://github.com/vapor/sql-kit.git
Computed https://github.com/vapor/sql-kit.git at 3.33.0 (4.56s)
Fetching https://github.com/apple/swift-collections.git
[1/16242] Fetching swift-collections
Fetched https://github.com/apple/swift-collections.git from cache (1.83s)
Computing version for https://github.com/apple/swift-nio.git
Computed https://github.com/apple/swift-nio.git at 2.82.0 (3.14s)
Fetching https://github.com/apple/swift-system.git
Fetching https://github.com/apple/swift-atomics.git
[1/1705] Fetching swift-atomics
[530/6058] Fetching swift-atomics, swift-system
Fetched https://github.com/apple/swift-atomics.git from cache (0.69s)
Fetched https://github.com/apple/swift-system.git from cache (0.70s)
Computing version for https://github.com/apple/swift-atomics.git
Computed https://github.com/apple/swift-atomics.git at 1.2.0 (1.60s)
Computing version for https://github.com/apple/swift-system.git
Computed https://github.com/apple/swift-system.git at 1.4.2 (0.83s)
Computing version for https://github.com/apple/swift-collections.git
Computed https://github.com/apple/swift-collections.git at 1.1.4 (1.14s)
Computing version for https://github.com/vapor/vapor.git
Computed https://github.com/vapor/vapor.git at 4.114.1 (1.92s)
Fetching https://github.com/vapor/multipart-kit.git
Fetching https://github.com/apple/swift-algorithms.git
Fetching https://github.com/apple/swift-distributed-tracing.git
Fetching https://github.com/vapor/websocket-kit.git
Fetching https://github.com/apple/swift-metrics.git
[1/2200] Fetching swift-metrics
[1365/5408] Fetching swift-metrics, multipart-kit
[3164/11311] Fetching swift-metrics, multipart-kit, swift-algorithms
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[4312/18814] Fetching swift-metrics, multipart-kit, swift-algorithms, swift-distributed-tracing, websocket-kit
Fetched https://github.com/apple/swift-metrics.git from cache (0.70s)
Fetched https://github.com/vapor/websocket-kit.git from cache (0.73s)
Fetching https://github.com/apple/swift-nio-extras.git
Fetched https://github.com/apple/swift-distributed-tracing.git from cache (0.95s)
Fetched https://github.com/apple/swift-algorithms.git from cache (0.96s)
Fetching https://github.com/apple/swift-nio-ssl.git
Fetching https://github.com/vapor/routing-kit.git
[1092/8870] Fetching multipart-kit, swift-nio-extras
[6783/29593] Fetching multipart-kit, swift-nio-extras, routing-kit
[13622/44386] Fetching multipart-kit, swift-nio-extras, routing-kit, swift-nio-ssl
Fetching https://github.com/apple/swift-nio-http2.git
Fetched https://github.com/apple/swift-nio-extras.git from cache (1.29s)
[18853/38724] Fetching multipart-kit, routing-kit, swift-nio-ssl
Fetching https://github.com/apple/swift-crypto.git
[20392/50216] Fetching multipart-kit, routing-kit, swift-nio-ssl, swift-nio-http2
[20852/64000] Fetching multipart-kit, routing-kit, swift-nio-ssl, swift-nio-http2, swift-crypto
Fetched https://github.com/vapor/routing-kit.git from cache (3.80s)
Fetching https://github.com/vapor/console-kit.git
Fetching https://github.com/apple/swift-service-context.git
Fetched https://github.com/apple/swift-nio-http2.git from cache (3.09s)
Fetching https://github.com/vapor/async-kit.git
Fetched https://github.com/vapor/multipart-kit.git from cache (5.14s)
Fetching https://github.com/swift-server/async-http-client.git
Fetched https://github.com/apple/swift-nio-ssl.git from cache (4.18s)
[1/5485] Fetching console-kit
Fetched https://github.com/apple/swift-crypto.git from cache (3.16s)
[5486/6544] Fetching console-kit, swift-service-context
[6471/8914] Fetching console-kit, swift-service-context, async-kit
Fetched https://github.com/vapor/console-kit.git from cache (0.68s)
[2837/3429] Fetching swift-service-context, async-kit
Fetched https://github.com/apple/swift-service-context.git from cache (0.57s)
Fetched https://github.com/vapor/async-kit.git from cache (0.45s)
[1/13783] Fetching async-http-client
Fetched https://github.com/swift-server/async-http-client.git from cache (2.84s)
Computing version for https://github.com/vapor/routing-kit.git
Computed https://github.com/vapor/routing-kit.git at 4.9.1 (9.18s)
Computing version for https://github.com/vapor/websocket-kit.git
Computed https://github.com/vapor/websocket-kit.git at 2.15.0 (0.80s)
Fetching https://github.com/apple/swift-nio-transport-services.git
[1/2619] Fetching swift-nio-transport-services
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Computing version for https://github.com/apple/swift-service-context.git
Computed https://github.com/apple/swift-service-context.git at 1.2.0 (1.22s)
Computing version for https://github.com/apple/swift-algorithms.git
Computed https://github.com/apple/swift-algorithms.git at 1.2.1 (0.89s)
Fetching https://github.com/apple/swift-numerics.git
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Computing version for https://github.com/apple/swift-metrics.git
Computed https://github.com/apple/swift-metrics.git at 2.6.1 (1.40s)
Computing version for https://github.com/apple/swift-nio-extras.git
Computed https://github.com/apple/swift-nio-extras.git at 1.26.0 (0.93s)
Fetching https://github.com/apple/swift-http-types.git
Fetching https://github.com/apple/swift-http-structured-headers.git
[1/904] Fetching swift-http-types
[905/2031] Fetching swift-http-types, swift-http-structured-headers
Fetched https://github.com/apple/swift-http-structured-headers.git from cache (1.16s)
Fetched https://github.com/apple/swift-http-types.git from cache (1.16s)
Computing version for https://github.com/apple/swift-http-structured-headers.git
Computed https://github.com/apple/swift-http-structured-headers.git at 1.2.2 (2.13s)
Computing version for https://github.com/apple/swift-http-types.git
Computed https://github.com/apple/swift-http-types.git at 1.4.0 (0.86s)
Computing version for https://github.com/apple/swift-numerics.git
Computed https://github.com/apple/swift-numerics.git at 1.0.3 (0.89s)
Computing version for https://github.com/apple/swift-distributed-tracing.git
Computed https://github.com/apple/swift-distributed-tracing.git at 1.2.0 (0.82s)
Computing version for https://github.com/swift-server/async-http-client.git
Computed https://github.com/swift-server/async-http-client.git at 1.25.2 (0.84s)
Computing version for https://github.com/vapor/console-kit.git
Computed https://github.com/vapor/console-kit.git at 4.15.2 (0.96s)
Computing version for https://github.com/vapor/async-kit.git
Computed https://github.com/vapor/async-kit.git at 1.20.0 (0.90s)
Computing version for https://github.com/apple/swift-nio-ssl.git
Computed https://github.com/apple/swift-nio-ssl.git at 2.30.0 (0.94s)
Computing version for https://github.com/apple/swift-nio-transport-services.git
Computed https://github.com/apple/swift-nio-transport-services.git at 1.24.0 (0.81s)
Computing version for https://github.com/apple/swift-nio-http2.git
Computed https://github.com/apple/swift-nio-http2.git at 1.36.0 (0.87s)
Computing version for https://github.com/vapor/multipart-kit.git
Computed https://github.com/vapor/multipart-kit.git at 4.7.1 (0.96s)
Computing version for https://github.com/apple/swift-crypto.git
Computed https://github.com/apple/swift-crypto.git at 3.12.3 (9.72s)
Fetching https://github.com/apple/swift-asn1.git
[1/1573] Fetching swift-asn1
Fetched https://github.com/apple/swift-asn1.git from cache (0.52s)
Computing version for https://github.com/apple/swift-asn1.git
Computed https://github.com/apple/swift-asn1.git at 1.3.2 (2.80s)
Creating working copy for https://github.com/apple/swift-log.git
Working copy of https://github.com/apple/swift-log.git resolved at 1.6.3
Creating working copy for https://github.com/apple/swift-distributed-tracing.git
Working copy of https://github.com/apple/swift-distributed-tracing.git resolved at 1.2.0
Creating working copy for https://github.com/apple/swift-system.git
Working copy of https://github.com/apple/swift-system.git resolved at 1.4.2
Creating working copy for https://github.com/vapor/fluent.git
Working copy of https://github.com/vapor/fluent.git resolved at 4.12.0
Creating working copy for https://github.com/apple/swift-nio-ssl.git
Working copy of https://github.com/apple/swift-nio-ssl.git resolved at 2.30.0
Creating working copy for https://github.com/vapor/multipart-kit.git
Working copy of https://github.com/vapor/multipart-kit.git resolved at 4.7.1
Creating working copy for https://github.com/apple/swift-metrics.git
Working copy of https://github.com/apple/swift-metrics.git resolved at 2.6.1
Creating working copy for https://github.com/apple/swift-nio-extras.git
Working copy of https://github.com/apple/swift-nio-extras.git resolved at 1.26.0
Creating working copy for https://github.com/vapor/fluent-kit.git
Working copy of https://github.com/vapor/fluent-kit.git resolved at 1.52.1
Creating working copy for https://github.com/apple/swift-http-structured-headers.git
Working copy of https://github.com/apple/swift-http-structured-headers.git resolved at 1.2.2
Creating working copy for https://github.com/vapor/async-kit.git
Working copy of https://github.com/vapor/async-kit.git resolved at 1.20.0
Creating working copy for https://github.com/apple/swift-asn1.git
Working copy of https://github.com/apple/swift-asn1.git resolved at 1.3.2
Creating working copy for https://github.com/apple/swift-nio-transport-services.git
Working copy of https://github.com/apple/swift-nio-transport-services.git resolved at 1.24.0
Creating working copy for https://github.com/vapor/sql-kit.git
Working copy of https://github.com/vapor/sql-kit.git resolved at 3.33.0
Creating working copy for https://github.com/apple/swift-atomics.git
Working copy of https://github.com/apple/swift-atomics.git resolved at 1.2.0
Creating working copy for https://github.com/apple/swift-collections.git
Working copy of https://github.com/apple/swift-collections.git resolved at 1.1.4
Creating working copy for https://github.com/swift-server/async-http-client.git
Working copy of https://github.com/swift-server/async-http-client.git resolved at 1.25.2
Creating working copy for https://github.com/vapor/vapor.git
Working copy of https://github.com/vapor/vapor.git resolved at 4.114.1
Creating working copy for https://github.com/vapor/console-kit.git
Working copy of https://github.com/vapor/console-kit.git resolved at 4.15.2
Creating working copy for https://github.com/apple/swift-crypto.git
Working copy of https://github.com/apple/swift-crypto.git resolved at 3.12.3
Creating working copy for https://github.com/apple/swift-numerics.git
Working copy of https://github.com/apple/swift-numerics.git resolved at 1.0.3
Creating working copy for https://github.com/vapor/websocket-kit.git
Working copy of https://github.com/vapor/websocket-kit.git resolved at 2.15.0
Creating working copy for https://github.com/apple/swift-service-context.git
Working copy of https://github.com/apple/swift-service-context.git resolved at 1.2.0
Creating working copy for https://github.com/apple/swift-algorithms.git
Working copy of https://github.com/apple/swift-algorithms.git resolved at 1.2.1
Creating working copy for https://github.com/apple/swift-http-types.git
Working copy of https://github.com/apple/swift-http-types.git resolved at 1.4.0
Creating working copy for https://github.com/apple/swift-nio.git
Working copy of https://github.com/apple/swift-nio.git resolved at 2.82.0
Creating working copy for https://github.com/vapor/routing-kit.git
Working copy of https://github.com/vapor/routing-kit.git resolved at 4.9.1
Creating working copy for https://github.com/apple/swift-nio-http2.git
Working copy of https://github.com/apple/swift-nio-http2.git resolved at 1.36.0
error: 'spi-builder-workspace': Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4609320-2":/host -w "$PWD" registry.gitlab.com/finestructure/spi-images:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from finestructure/spi-images
Digest: sha256:3bdcac04179f4ed3e5b8e9dbd6e74bbf5ebc0f4fde48bbaad7d1e5c757e65bcb
Status: Image is up to date for registry.gitlab.com/finestructure/spi-images:basic-6.1-latest
error: 'spi-builder-workspace': Source files for target RecommenderTests should be located under 'Tests/RecommenderTests', or a custom sources path can be set with the 'path' property in Package.swift
BUILD FAILURE 6.1 linux