this derivation will be built:
  /nix/store/c2jbl10dssbb8zizh1nmjsya3hw0359m-swamp-20260828.231706.0-sha.ca29674e.drv
building '/nix/store/c2jbl10dssbb8zizh1nmjsya3hw0359m-swamp-20260828.231706.0-sha.ca29674e.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/c2jbl10dssbb8zizh1nmjsya3hw0359m-swamp-20260828.231706.0-sha.ca29674e.drv'
swamp-20260828.231706.0-sha.ca29674e> Using versionCheckHook
swamp-20260828.231706.0-sha.ca29674e> Running phase: unpackPhase
swamp-20260828.231706.0-sha.ca29674e> unpacking source archive /nix/store/8ndccyv8ixj85dvrfr14qjd6z4njkah5-swamp-20260828.231706.0-sha.ca29674e-binary-darwin-aarch64.tar.gz
swamp-20260828.231706.0-sha.ca29674e> source root is .
swamp-20260828.231706.0-sha.ca29674e> setting SOURCE_DATE_EPOCH to timestamp 1788010343 of file "./env-vars"
swamp-20260828.231706.0-sha.ca29674e> warning: file "./env-vars" may be generated; SOURCE_DATE_EPOCH may be non-deterministic
swamp-20260828.231706.0-sha.ca29674e> Running phase: patchPhase
swamp-20260828.231706.0-sha.ca29674e> Running phase: updateAutotoolsGnuConfigScriptsPhase
swamp-20260828.231706.0-sha.ca29674e> Running phase: configurePhase
swamp-20260828.231706.0-sha.ca29674e> no configure script, doing nothing
swamp-20260828.231706.0-sha.ca29674e> Running phase: buildPhase
swamp-20260828.231706.0-sha.ca29674e> no Makefile or custom buildPhase, doing nothing
swamp-20260828.231706.0-sha.ca29674e> Running phase: installPhase
swamp-20260828.231706.0-sha.ca29674e> Running phase: fixupPhase
swamp-20260828.231706.0-sha.ca29674e> checking for references to /nix/var/nix/builds/nix-82045-4172791309/ in /nix/store/k5x9dnwbgws8yi38fxxy65wn6bhqjvmv-swamp-20260828.231706.0-sha.ca29674e...
swamp-20260828.231706.0-sha.ca29674e> patching script interpreter paths in /nix/store/k5x9dnwbgws8yi38fxxy65wn6bhqjvmv-swamp-20260828.231706.0-sha.ca29674e
swamp-20260828.231706.0-sha.ca29674e> Running phase: installCheckPhase
swamp-20260828.231706.0-sha.ca29674e> Executing versionCheckPhase
swamp-20260828.231706.0-sha.ca29674e> Successfully managed to find version 20260828.231706.0-sha.ca29674e in the output of the command /nix/store/k5x9dnwbgws8yi38fxxy65wn6bhqjvmv-swamp-20260828.231706.0-sha.ca29674e/bin/swamp --version
swamp-20260828.231706.0-sha.ca29674e> swamp 20260828.231706.0-sha.ca29674e
swamp-20260828.231706.0-sha.ca29674e> Finished versionCheckPhase
swamp-20260828.231706.0-sha.ca29674e> no Makefile or custom installCheckPhase, doing nothing

post-build step Upload to niks3: ok
time=2026-08-29T13:32:34.544Z level=INFO msg="Uploading 0 paths to niks3.numtide.com (1 already cached)"
time=2026-08-29T13:32:35.216Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-29T13:32:35.732Z level=INFO msg="Upload complete. (1.264s)"