[Parity] swift-build crashes with large packages (many targets) #9270
Description
Is it reproducible with SwiftPM command-line tools: swift build, swift test, swift package etc?
- Confirmed reproduction steps with SwiftPM CLI. The description text must include reproduction steps with either of command-line SwiftPM commands,
swift build,swift test,swift packageetc.
Description
https://github.com/teco-project/teco.git
MacOS
The following package does not build using the 'swifbuild' backend but does with 'native'
swift build `--buildsystem=swiftbuild` fails to build package
info: Target 'CNIOLinux' in project 'swift-nio' (no dependencies)
info: Target 'CNIODarwin' in project 'swift-nio' (no dependencies)
info: Target '_NIOBase64' in project 'swift-nio' (no dependencies)
info: Target 'NIOConcurrencyHelpers' in project 'swift-nio'
info: ➜ Explicit dependency on target 'CNIOAtomics' in project 'swift-nio'
info: Target 'CNIOAtomics' in project 'swift-nio' (no dependencies)
info: Target 'Crypto-product' in project 'swift-crypto'
info: ➜ Explicit dependency on target 'Crypto' in project 'swift-crypto'
info: Target 'Crypto' in project 'swift-crypto' (no dependencies)
info: Target 'INIParser' in project 'teco-core' (no dependencies)
info: Gather provisioning inputs
info: Create build description
[swift-build-2025-10-21-150645.ips.txt](https://github.com/user-attachments/files/23030085/swift-build-2025-10-21-150645.ips.txt)
Note: No error message simply exits, due to crash.
Expected behavior
Builds
Actual behavior
Fails to build
Steps to reproduce
git clone https://github.com/teco-project/teco.git
swift build --build-system=swiftbuild
Swift Package Manager version/commit hash
No response
Swift & OS version (output of swift --version ; uname -a)
No response