these 2 derivations will be built:
  /nix/store/6nnbpp9przf0l47hpbc9ifyhjs90qlmm-swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz.drv
  /nix/store/z9jgf3djxcrh0x7vl30m3ilk9dmpdn7i-swamp-20260824.153711.0-sha.14dc4881.drv
building '/nix/store/dp3wz7ik0d5j1zlr000gbh0f9k9d0hsw-swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/dp3wz7ik0d5j1zlr000gbh0f9k9d0hsw-swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz.drv'
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> structuredAttrs is enabled
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> 
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> trying https://artifacts.swamp-club.com/swamp/20260824.153711.0-sha.14dc4881/binary/darwin/aarch64/swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz>   % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz>                                  Dload  Upload  Total   Spent   Left   Speed
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> 
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz>   0      0   0      0   0      0      0      0                              0
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz>   5 97.84M   5  5.05M   0      0  4.76M      0   00:20   00:01   00:19  5.06M
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz>  86 97.84M  86 84.23M   0      0 40.88M      0   00:02   00:02         42.15M
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> 100 97.84M 100 97.84M   0      0 43.60M      0   00:02   00:02         42.15M
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> 100 97.84M 100 97.84M   0      0 43.60M      0   00:02   00:02         42.15M
swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz> 100 97.84M 100 97.84M   0      0 43.60M      0   00:02   00:02         42.15M
building '/nix/store/z9jgf3djxcrh0x7vl30m3ilk9dmpdn7i-swamp-20260824.153711.0-sha.14dc4881.drv' on 'ssh-ng://customer@mac02.m.ntd.one'
building '/nix/store/z9jgf3djxcrh0x7vl30m3ilk9dmpdn7i-swamp-20260824.153711.0-sha.14dc4881.drv'
swamp-20260824.153711.0-sha.14dc4881> Using versionCheckHook
swamp-20260824.153711.0-sha.14dc4881> Running phase: unpackPhase
swamp-20260824.153711.0-sha.14dc4881> unpacking source archive /nix/store/9cxry0kph2vl64mywdy32w7jpd8phwzl-swamp-20260824.153711.0-sha.14dc4881-binary-darwin-aarch64.tar.gz
swamp-20260824.153711.0-sha.14dc4881> source root is .
swamp-20260824.153711.0-sha.14dc4881> setting SOURCE_DATE_EPOCH to timestamp 1787596142 of file "./env-vars"
swamp-20260824.153711.0-sha.14dc4881> warning: file "./env-vars" may be generated; SOURCE_DATE_EPOCH may be non-deterministic
swamp-20260824.153711.0-sha.14dc4881> Running phase: patchPhase
swamp-20260824.153711.0-sha.14dc4881> Running phase: updateAutotoolsGnuConfigScriptsPhase
swamp-20260824.153711.0-sha.14dc4881> Running phase: configurePhase
swamp-20260824.153711.0-sha.14dc4881> no configure script, doing nothing
swamp-20260824.153711.0-sha.14dc4881> Running phase: buildPhase
swamp-20260824.153711.0-sha.14dc4881> no Makefile or custom buildPhase, doing nothing
swamp-20260824.153711.0-sha.14dc4881> Running phase: installPhase
swamp-20260824.153711.0-sha.14dc4881> Running phase: fixupPhase
swamp-20260824.153711.0-sha.14dc4881> checking for references to /nix/var/nix/builds/nix-94992-4116062781/ in /nix/store/5sh330n0dgh009v99703mwxmbgkwnx1m-swamp-20260824.153711.0-sha.14dc4881...
swamp-20260824.153711.0-sha.14dc4881> /nix/store/cv1d7p48379km6a85h4zp6kr86brh32q-audit-tmpdir.sh: line 39: 99055 Done                       find "$dir" -type f -not -path '*/.build-id/*' -print0
swamp-20260824.153711.0-sha.14dc4881>      99056 Segmentation fault: 11     | while IFS= read -r -d '' file; do
swamp-20260824.153711.0-sha.14dc4881>     if isELF "$file"; then
swamp-20260824.153711.0-sha.14dc4881>         printf '%s\0' "$file" 1>&3;
swamp-20260824.153711.0-sha.14dc4881>     else
swamp-20260824.153711.0-sha.14dc4881>         if isScript "$file"; then
swamp-20260824.153711.0-sha.14dc4881>             filename=${file##*/}; dir=${file%/*}; if [ -e "$dir/.$filename-wrapped" ]; then
swamp-20260824.153711.0-sha.14dc4881>                 printf '%s\0' "$file" 1>&4;
swamp-20260824.153711.0-sha.14dc4881>             fi;
swamp-20260824.153711.0-sha.14dc4881>         fi;
swamp-20260824.153711.0-sha.14dc4881>     fi;
swamp-20260824.153711.0-sha.14dc4881> done
swamp-20260824.153711.0-sha.14dc4881> patching script interpreter paths in /nix/store/5sh330n0dgh009v99703mwxmbgkwnx1m-swamp-20260824.153711.0-sha.14dc4881
swamp-20260824.153711.0-sha.14dc4881> Running phase: installCheckPhase
swamp-20260824.153711.0-sha.14dc4881> Executing versionCheckPhase
swamp-20260824.153711.0-sha.14dc4881> Successfully managed to find version 20260824.153711.0-sha.14dc4881 in the output of the command /nix/store/5sh330n0dgh009v99703mwxmbgkwnx1m-swamp-20260824.153711.0-sha.14dc4881/bin/swamp --version
swamp-20260824.153711.0-sha.14dc4881> swamp 20260824.153711.0-sha.14dc4881
swamp-20260824.153711.0-sha.14dc4881> Finished versionCheckPhase
swamp-20260824.153711.0-sha.14dc4881> no Makefile or custom installCheckPhase, doing nothing

post-build step Upload to niks3: ok
time=2026-08-24T18:29:20.976Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (0 already cached)"
time=2026-08-24T18:29:20.976Z level=INFO msg="Uploading 5sh330n0dgh009v99703mwxmbgkwnx1m-swamp-20260824.153711.0-sha.14dc4881 (298.0MB)"
time=2026-08-24T18:29:37.452Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-24T18:29:37.799Z level=INFO msg="Upload complete. (17.178s)"