Using versionCheckHook
Running phase: unpackPhase
unpacking source archive /nix/store/cxq779p2qvh6qrbrvz7xhfhsyaz37wd8-swamp-20260827.012103.0-sha.89734f5f-binary-darwin-aarch64.tar.gz
source root is .
setting SOURCE_DATE_EPOCH to timestamp 1787794638 of file "./swamp"
Running phase: patchPhase
Running phase: updateAutotoolsGnuConfigScriptsPhase
Running phase: configurePhase
no configure script, doing nothing
Running phase: buildPhase
no Makefile or custom buildPhase, doing nothing
Running phase: installPhase
Running phase: fixupPhase
checking for references to /nix/var/nix/builds/nix-63289-3812655858/ in /nix/store/6mn90gyymagqq4cp8i8qpsqnshd03dcl-swamp-20260827.012103.0-sha.89734f5f...
patching script interpreter paths in /nix/store/6mn90gyymagqq4cp8i8qpsqnshd03dcl-swamp-20260827.012103.0-sha.89734f5f
Running phase: installCheckPhase
Executing versionCheckPhase
Successfully managed to find version 20260827.012103.0-sha.89734f5f in the output of the command /nix/store/6mn90gyymagqq4cp8i8qpsqnshd03dcl-swamp-20260827.012103.0-sha.89734f5f/bin/swamp --version
swamp 20260827.012103.0-sha.89734f5f
Finished versionCheckPhase
no Makefile or custom installCheckPhase, doing nothing