these 2 derivations will be built:
  /nix/store/388ydgwkvk3686idddfxp3hhzpmafnzn-swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz.drv
  /nix/store/hbvimpi1n5ij4dwkwa7hgvsr6p7rargz-swamp-20260824.230503.0-sha.ad72897a.drv
building '/nix/store/a89wmyblr04vxjyfm8n4hyzbjccnj6dr-swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/a89wmyblr04vxjyfm8n4hyzbjccnj6dr-swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz.drv'
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> structuredAttrs is enabled
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> 
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> trying https://artifacts.swamp-club.com/swamp/20260824.230503.0-sha.ad72897a/binary/darwin/aarch64/swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz>   % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz>                                  Dload  Upload  Total   Spent   Left   Speed
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> 
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz>   0      0   0      0   0      0      0      0                              0
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz>  10 97.84M  10 10.22M   0      0  9.69M      0   00:10   00:01   00:09 10.19M
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz>  48 97.84M  48 47.78M   0      0 23.25M      0   00:04   00:02   00:02 23.85M
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz>  96 97.84M  96 94.07M   0      0 30.55M      0   00:03   00:03         31.07M
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> 100 97.84M 100 97.84M   0      0 31.37M      0   00:03   00:03         31.07M
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> 100 97.84M 100 97.84M   0      0 31.37M      0   00:03   00:03         31.07M
swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz> 100 97.84M 100 97.84M   0      0 31.37M      0   00:03   00:03         31.07M
building '/nix/store/hbvimpi1n5ij4dwkwa7hgvsr6p7rargz-swamp-20260824.230503.0-sha.ad72897a.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/hbvimpi1n5ij4dwkwa7hgvsr6p7rargz-swamp-20260824.230503.0-sha.ad72897a.drv'
swamp-20260824.230503.0-sha.ad72897a> Using versionCheckHook
swamp-20260824.230503.0-sha.ad72897a> Running phase: unpackPhase
swamp-20260824.230503.0-sha.ad72897a> unpacking source archive /nix/store/wk5xlgya8k9325cdlbj3g9z82nwhn5sj-swamp-20260824.230503.0-sha.ad72897a-binary-darwin-aarch64.tar.gz
swamp-20260824.230503.0-sha.ad72897a> source root is .
swamp-20260824.230503.0-sha.ad72897a> setting SOURCE_DATE_EPOCH to timestamp 1787632111 of file "./env-vars"
swamp-20260824.230503.0-sha.ad72897a> warning: file "./env-vars" may be generated; SOURCE_DATE_EPOCH may be non-deterministic
swamp-20260824.230503.0-sha.ad72897a> Running phase: patchPhase
swamp-20260824.230503.0-sha.ad72897a> Running phase: updateAutotoolsGnuConfigScriptsPhase
swamp-20260824.230503.0-sha.ad72897a> Running phase: configurePhase
swamp-20260824.230503.0-sha.ad72897a> no configure script, doing nothing
swamp-20260824.230503.0-sha.ad72897a> Running phase: buildPhase
swamp-20260824.230503.0-sha.ad72897a> no Makefile or custom buildPhase, doing nothing
swamp-20260824.230503.0-sha.ad72897a> Running phase: installPhase
swamp-20260824.230503.0-sha.ad72897a> Running phase: fixupPhase
swamp-20260824.230503.0-sha.ad72897a> checking for references to /nix/var/nix/builds/nix-12244-258368240/ in /nix/store/792rs72ny7y0b6ddv2bfkbvnmkvv2d34-swamp-20260824.230503.0-sha.ad72897a...
swamp-20260824.230503.0-sha.ad72897a> patching script interpreter paths in /nix/store/792rs72ny7y0b6ddv2bfkbvnmkvv2d34-swamp-20260824.230503.0-sha.ad72897a
swamp-20260824.230503.0-sha.ad72897a> Running phase: installCheckPhase
swamp-20260824.230503.0-sha.ad72897a> Executing versionCheckPhase
swamp-20260824.230503.0-sha.ad72897a> Successfully managed to find version 20260824.230503.0-sha.ad72897a in the output of the command /nix/store/792rs72ny7y0b6ddv2bfkbvnmkvv2d34-swamp-20260824.230503.0-sha.ad72897a/bin/swamp --version
swamp-20260824.230503.0-sha.ad72897a> swamp 20260824.230503.0-sha.ad72897a
swamp-20260824.230503.0-sha.ad72897a> Finished versionCheckPhase
swamp-20260824.230503.0-sha.ad72897a> no Makefile or custom installCheckPhase, doing nothing

post-build step Upload to niks3: ok
time=2026-08-25T04:28:49.087Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (0 already cached)"
time=2026-08-25T04:28:49.087Z level=INFO msg="Uploading 792rs72ny7y0b6ddv2bfkbvnmkvv2d34-swamp-20260824.230503.0-sha.ad72897a (298.1MB)"
time=2026-08-25T04:29:01.297Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-25T04:29:01.618Z level=INFO msg="Upload complete. (12.807s)"