Build Information
Failed to build MailCore2, reference master (e512ab), with Swift 6.1 for macOS (SPM) on 9 Oct 2026 09:05:04 UTC.
Build Command
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64Build Log
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RunAll
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Builder version: 5.1.1
Interrupt handler set up.
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Checkout
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Clone URL: https://github.com/MailCore/mailcore2.git
Reference: master
Initialized empty Git repository in /Users/admin/builder/spi-builder-workspace/.git/
From https://github.com/MailCore/mailcore2
* branch master -> FETCH_HEAD
* [new branch] master -> origin/master
HEAD is now at e512ab5 Simplify ActiveSync public API
Submodule path 'deps/ctemplate': checked out 'd004783679560176f501998fd620f50acfc233f0'
Submodule path 'deps/libetpan': checked out '6dc099a813344ee9c48009d70a78016ae838afcc'
Submodule path 'deps/tidy-html5': checked out '10c3674befa76f0f8c56e2944959a0ba9e1ef638'
Submodule 'deps/ctemplate' (https://github.com/dinhviethoa/ctemplate) registered for path 'deps/ctemplate'
Submodule 'deps/libetpan' (https://github.com/dinhviethoa/libetpan.git) registered for path 'deps/libetpan'
Submodule 'deps/tidy-html5' (https://github.com/dinhvh/tidy-html5.git) registered for path 'deps/tidy-html5'
Cloning into '/Users/admin/builder/spi-builder-workspace/deps/ctemplate'...
Cloning into '/Users/admin/builder/spi-builder-workspace/deps/libetpan'...
Cloning into '/Users/admin/builder/spi-builder-workspace/deps/tidy-html5'...
Cloned https://github.com/MailCore/mailcore2.git
Revision (git rev-parse @):
e512ab51f43c5f682c8ce7ede5c4bdfd89194677
SUCCESS checkout https://github.com/MailCore/mailcore2.git at master
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Build
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Selected platform: macosSpm
Swift version: 6.1
Building package at path: $PWD
https://github.com/MailCore/mailcore2.git
https://github.com/MailCore/mailcore2.git
{
"dependencies" : [
],
"manifest_display_name" : "MailCore2",
"name" : "MailCore2",
"path" : "/Users/admin/builder/spi-builder-workspace",
"platforms" : [
{
"name" : "ios",
"version" : "9.0"
},
{
"name" : "macos",
"version" : "10.10"
}
],
"products" : [
{
"name" : "MailCore2",
"targets" : [
"MailCore2"
],
"type" : {
"library" : [
"automatic"
]
}
}
],
"targets" : [
{
"c99name" : "MailCore2",
"module_type" : "BinaryTarget",
"name" : "MailCore2",
"path" : "remote/archive/MailCore2-2020-09-24.xcframework.zip",
"product_memberships" : [
"MailCore2"
],
"sources" : [
],
"type" : "binary"
}
],
"tools_version" : "5.3"
}
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64 -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
Downloading binary artifact https://github.com/mattmaddux/mailcore2/raw/master/bin/MailCore2-2020-09-24.xcframework.zip
[16375/13860999] Downloading https://github.com/mattmaddux/mailcore2/raw/master/bin/MailCore2-2020-09-24.xcframework.zip
Downloaded https://github.com/mattmaddux/mailcore2/raw/master/bin/MailCore2-2020-09-24.xcframework.zip (1.34s)
error: The package does not contain a buildable target.
Add at least one `.target` or `.executableTarget` to your `Package.swift`.
Running build ...
env DEVELOPER_DIR=/Applications/Xcode-16.3.0.app xcrun swift build --arch arm64
error: The package does not contain a buildable target.
Add at least one `.target` or `.executableTarget` to your `Package.swift`.
BUILD FAILURE 6.1 macosSpm