these 2 derivations will be built:
  /nix/store/igw1rk92ccxjbvxbmbkhwypks56c78qf-swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz.drv
  /nix/store/x6r9rq7pcf9ciwgha95xkqq0kry89ds9-swamp-20260830.034252.0-sha.43b19693.drv
building '/nix/store/65z6yz28z9vzgnigp1shxdkf941ib958-swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/65z6yz28z9vzgnigp1shxdkf941ib958-swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz.drv'
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> structuredAttrs is enabled
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> 
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> trying https://artifacts.swamp-club.com/swamp/20260830.034252.0-sha.43b19693/binary/darwin/aarch64/swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz>   % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz>                                  Dload  Upload  Total   Spent   Left   Speed
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> 
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz>   0      0   0      0   0      0      0      0                              0
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz>   7 98.11M   7  7.43M   0      0  7.07M      0   00:13   00:01   00:12  7.44M
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz>  97 98.11M  97 95.76M   0      0 46.69M      0   00:02   00:02         47.91M
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> 100 98.11M 100 98.11M   0      0 47.19M      0   00:02   00:02         47.91M
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> 100 98.11M 100 98.11M   0      0 47.19M      0   00:02   00:02         47.91M
swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz> 100 98.11M 100 98.11M   0      0 47.18M      0   00:02   00:02         47.91M
building '/nix/store/x6r9rq7pcf9ciwgha95xkqq0kry89ds9-swamp-20260830.034252.0-sha.43b19693.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/x6r9rq7pcf9ciwgha95xkqq0kry89ds9-swamp-20260830.034252.0-sha.43b19693.drv'
swamp-20260830.034252.0-sha.43b19693> Using versionCheckHook
swamp-20260830.034252.0-sha.43b19693> Running phase: unpackPhase
swamp-20260830.034252.0-sha.43b19693> unpacking source archive /nix/store/04vlinr7cgmcz8fk7j10jnb9z22c0w7y-swamp-20260830.034252.0-sha.43b19693-binary-darwin-aarch64.tar.gz
swamp-20260830.034252.0-sha.43b19693> source root is .
swamp-20260830.034252.0-sha.43b19693> setting SOURCE_DATE_EPOCH to timestamp 1788062497 of file "./swamp"
swamp-20260830.034252.0-sha.43b19693> Running phase: patchPhase
swamp-20260830.034252.0-sha.43b19693> Running phase: updateAutotoolsGnuConfigScriptsPhase
swamp-20260830.034252.0-sha.43b19693> Running phase: configurePhase
swamp-20260830.034252.0-sha.43b19693> no configure script, doing nothing
swamp-20260830.034252.0-sha.43b19693> Running phase: buildPhase
swamp-20260830.034252.0-sha.43b19693> no Makefile or custom buildPhase, doing nothing
swamp-20260830.034252.0-sha.43b19693> Running phase: installPhase
swamp-20260830.034252.0-sha.43b19693> Running phase: fixupPhase
swamp-20260830.034252.0-sha.43b19693> checking for references to /nix/var/nix/builds/nix-73858-958597591/ in /nix/store/kdc2ilxfx5r8kzmzbyigal0hwp7igvdx-swamp-20260830.034252.0-sha.43b19693...
swamp-20260830.034252.0-sha.43b19693> patching script interpreter paths in /nix/store/kdc2ilxfx5r8kzmzbyigal0hwp7igvdx-swamp-20260830.034252.0-sha.43b19693
swamp-20260830.034252.0-sha.43b19693> Running phase: installCheckPhase
swamp-20260830.034252.0-sha.43b19693> Executing versionCheckPhase
swamp-20260830.034252.0-sha.43b19693> Successfully managed to find version 20260830.034252.0-sha.43b19693 in the output of the command /nix/store/kdc2ilxfx5r8kzmzbyigal0hwp7igvdx-swamp-20260830.034252.0-sha.43b19693/bin/swamp --version
swamp-20260830.034252.0-sha.43b19693> swamp 20260830.034252.0-sha.43b19693
swamp-20260830.034252.0-sha.43b19693> Finished versionCheckPhase
swamp-20260830.034252.0-sha.43b19693> no Makefile or custom installCheckPhase, doing nothing

post-build step Upload to niks3: ok
time=2026-08-30T18:50:35.139Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (0 already cached)"
time=2026-08-30T18:50:35.139Z level=INFO msg="Uploading kdc2ilxfx5r8kzmzbyigal0hwp7igvdx-swamp-20260830.034252.0-sha.43b19693 (299.3MB)"
time=2026-08-30T18:51:00.336Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-30T18:51:00.811Z level=INFO msg="Upload complete. (26.256s)"