Swift Package IndexBuild Information
Failed to build FTAPIKit, reference 2.0.0 (1c9e9f), with Swift 6.1 for Linux on 31 Mar 2026 00:37:42 UTC.
Build Command
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1Build Log
========================================
RunAll
========================================
Builder version: 4.69.2
Interrupt handler set up.
========================================
Checkout
========================================
Clone URL: https://github.com/futuredapp/FTAPIKit.git
Reference: 2.0.0
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/futuredapp/FTAPIKit
* tag 2.0.0 -> FETCH_HEAD
HEAD is now at 1c9e9f1 Merge pull request #113 from futuredapp/feature/request-configuring
Cloned https://github.com/futuredapp/FTAPIKit.git
Revision (git rev-parse @):
1c9e9f1dda4a7b2f15dd606104f0d10413c962d3
SUCCESS checkout https://github.com/futuredapp/FTAPIKit.git at 2.0.0
========================================
Build
========================================
Selected platform: linux
Swift version: 6.1
Building package at path: $PWD
https://github.com/futuredapp/FTAPIKit.git
https://github.com/futuredapp/FTAPIKit.git
WARNING: environment variable SUPPRESS_SWIFT_6_FLAGS is not set
{
"dependencies" : [
],
"manifest_display_name" : "FTAPIKit",
"name" : "FTAPIKit",
"path" : "/host/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "15.0"
},
{
"name" : "macos",
"version" : "12.0"
},
{
"name" : "tvos",
"version" : "15.0"
},
{
"name" : "watchos",
"version" : "8.0"
}
],
"products" : [
{
"name" : "FTAPIKit",
"targets" : [
"FTAPIKit"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "FTAPIKitTests",
"module_type" : "SwiftTarget",
"name" : "FTAPIKitTests",
"path" : "Tests/FTAPIKitTests",
"sources" : [
"AsyncBuildRequestTests.swift",
"AsyncTests.swift",
"EndpointTypeTests.swift",
"ErrorHandlingTests.swift",
"Mockups/Endpoints.swift",
"Mockups/Errors.swift",
"Mockups/HTTPBinResponse.swift",
"Mockups/MockNetworkObserver.swift",
"Mockups/MockTokenManager.swift",
"Mockups/Models.swift",
"Mockups/Servers.swift",
"NetworkObserverTests.swift",
"RequestConfiguringTests.swift",
"URLQueryTests.swift"
],
"target_dependencies" : [
"FTAPIKit"
],
"type" : "test"
},
{
"c99name" : "FTAPIKit",
"module_type" : "SwiftTarget",
"name" : "FTAPIKit",
"path" : "Sources/FTAPIKit",
"product_memberships" : [
"FTAPIKit"
],
"sources" : [
"APIError+Standard.swift",
"APIError.swift",
"CharacterSet+URLQuery.swift",
"Coding.swift",
"Endpoint.swift",
"HTTPMethod.swift",
"MultipartBodyPart.swift",
"MultipartFormData.swift",
"NetworkObserver.swift",
"OutputStream+Write.swift",
"RequestConfiguring.swift",
"URL+MIME.swift",
"URL+Query.swift",
"URLQuery.swift",
"URLRequestBuilder.swift",
"URLServer+Async.swift",
"URLServer.swift"
],
"type" : "library"
}
],
"tools_version" : "6.1"
}
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/host -w "$PWD" -e JAVA_HOME="/root/.sdkman/candidates/java/current" -e SPI_BUILD="1" -e SPI_PROCESSING="1" registry.gitlab.com/swiftpackageindex/spi-images: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 swiftpackageindex/spi-images
Digest: sha256:108e10880bce35e9496fba26782956e40a8e91a2a227f9b90af7e4cd93d2c183
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
Building for debugging...
[0/2] Write sources
[1/2] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[3/18] Emitting module FTAPIKit
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[4/20] Compiling FTAPIKit URLServer+Async.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[5/20] Compiling FTAPIKit URLServer.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[6/20] Compiling FTAPIKit URLQuery.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[7/20] Compiling FTAPIKit URLRequestBuilder.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[8/20] Compiling FTAPIKit MultipartFormData.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[9/20] Compiling FTAPIKit NetworkObserver.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[10/20] Compiling FTAPIKit URL+MIME.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[11/20] Compiling FTAPIKit URL+Query.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[12/20] Compiling FTAPIKit HTTPMethod.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[13/20] Compiling FTAPIKit MultipartBodyPart.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[14/20] Compiling FTAPIKit APIError+Standard.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[15/20] Compiling FTAPIKit APIError.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[16/20] Compiling FTAPIKit CharacterSet+URLQuery.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[17/20] Compiling FTAPIKit Coding.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[18/20] Compiling FTAPIKit Endpoint.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[19/20] Compiling FTAPIKit OutputStream+Write.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[20/20] Compiling FTAPIKit RequestConfiguring.swift
<unknown>:0: warning: upcoming feature 'InferSendableFromCaptures' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'GlobalActorIsolatedTypesUsability' is already enabled as of Swift version 6
<unknown>:0: warning: upcoming feature 'DisableOutwardActorInference' is already enabled as of Swift version 6
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
Running build ...
bash -c docker run --pull=always --rm -v "checkouts-4606859-2":/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:basic-6.1-latest swift build --triple x86_64-unknown-linux-gnu 2>&1
basic-6.1-latest: Pulling from swiftpackageindex/spi-images
Digest: sha256:108e10880bce35e9496fba26782956e40a8e91a2a227f9b90af7e4cd93d2c183
Status: Image is up to date for registry.gitlab.com/swiftpackageindex/spi-images:basic-6.1-latest
[0/1] Planning build
Building for debugging...
[0/1] Write swift-version-24593BA9C3E375BF.txt
error: emit-module command failed with exit code 1 (use -v to see invocation)
[2/17] Emitting module FTAPIKit
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[3/19] Compiling FTAPIKit URLServer+Async.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[4/19] Compiling FTAPIKit URLServer.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[5/19] Compiling FTAPIKit OutputStream+Write.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[6/19] Compiling FTAPIKit RequestConfiguring.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[7/19] Compiling FTAPIKit URL+MIME.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[8/19] Compiling FTAPIKit URL+Query.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[9/19] Compiling FTAPIKit Coding.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[10/19] Compiling FTAPIKit Endpoint.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[11/19] Compiling FTAPIKit HTTPMethod.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[12/19] Compiling FTAPIKit MultipartBodyPart.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[13/19] Compiling FTAPIKit APIError+Standard.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[14/19] Compiling FTAPIKit APIError.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[15/19] Compiling FTAPIKit CharacterSet+URLQuery.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[16/19] Compiling FTAPIKit URLQuery.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[17/19] Compiling FTAPIKit URLRequestBuilder.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[18/19] Compiling FTAPIKit MultipartFormData.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
[19/19] Compiling FTAPIKit NetworkObserver.swift
/host/spi-builder-workspace/Sources/FTAPIKit/OutputStream+Write.swift:2:8: error: no such module 'os'
1 | import Foundation
2 | import os
| `- error: no such module 'os'
3 |
4 | extension Stream {
BUILD FAILURE 6.1 linux