these 2 derivations will be built:
  /nix/store/zziwc92bpdl2m1mw7ps7yx2yb2xkqdib-swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz.drv
  /nix/store/xs7nsx8zg5500akylcaxnzqnqz155gcf-swamp-20260901.013347.0-sha.58c65184.drv
building '/nix/store/qpa9kv227960c2d4622icnq2l4qrcgzd-swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz.drv'
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> structuredAttrs is enabled
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> 
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> trying https://artifacts.swamp-club.com/swamp/20260901.013347.0-sha.58c65184/binary/linux/x86_64/swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz>   % Total    % Received % Xferd  Average Speed  Time    Time    Time   Current
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz>                                  Dload  Upload  Total   Spent   Left   Speed
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> 
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz>   0      0   0      0   0      0      0      0                              0
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz>  14 112.0M  14 15.96M   0      0 13.50M      0   00:08   00:01   00:07 15.33M
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz>  94 112.0M  94 105.6M   0      0 48.33M      0   00:02   00:02         51.69M
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> 100 112.0M 100 112.0M   0      0 48.78M      0   00:02   00:02         51.69M
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> 100 112.0M 100 112.0M   0      0 48.70M      0   00:02   00:02         51.69M
swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz> 100 112.0M 100 112.0M   0      0 48.70M      0   00:02   00:02         51.69M
building '/nix/store/xs7nsx8zg5500akylcaxnzqnqz155gcf-swamp-20260901.013347.0-sha.58c65184.drv'
swamp-20260901.013347.0-sha.58c65184> Using versionCheckHook
swamp-20260901.013347.0-sha.58c65184> Running phase: unpackPhase
swamp-20260901.013347.0-sha.58c65184> unpacking source archive /nix/store/f244sy67brw7hli5sig6l3f2b5nyp1rp-swamp-20260901.013347.0-sha.58c65184-binary-linux-x86_64.tar.gz
swamp-20260901.013347.0-sha.58c65184> source root is .
swamp-20260901.013347.0-sha.58c65184> setting SOURCE_DATE_EPOCH to timestamp 1788227618 of file "./swamp"
swamp-20260901.013347.0-sha.58c65184> Running phase: patchPhase
swamp-20260901.013347.0-sha.58c65184> Running phase: updateAutotoolsGnuConfigScriptsPhase
swamp-20260901.013347.0-sha.58c65184> Running phase: configurePhase
swamp-20260901.013347.0-sha.58c65184> no configure script, doing nothing
swamp-20260901.013347.0-sha.58c65184> Running phase: buildPhase
swamp-20260901.013347.0-sha.58c65184> no Makefile or custom buildPhase, doing nothing
swamp-20260901.013347.0-sha.58c65184> Running phase: installPhase
swamp-20260901.013347.0-sha.58c65184> Running phase: fixupPhase
swamp-20260901.013347.0-sha.58c65184> shrinking RPATHs of ELF executables and libraries in /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184
swamp-20260901.013347.0-sha.58c65184> shrinking /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184/bin/swamp
swamp-20260901.013347.0-sha.58c65184> checking for references to /build/ in /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184...
swamp-20260901.013347.0-sha.58c65184> patching script interpreter paths in /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184
swamp-20260901.013347.0-sha.58c65184> wrapBuddy: wrapping paths: /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184
swamp-20260901.013347.0-sha.58c65184> Using interpreter: /nix/store/0d8g8n0a11v6f5m2h416ajyxmnkwc3md-glibc-2.42-67/lib/ld-linux-x86-64.so.2
swamp-20260901.013347.0-sha.58c65184> 64-bit stub: 407 bytes
swamp-20260901.013347.0-sha.58c65184> 32-bit stub: 441 bytes
swamp-20260901.013347.0-sha.58c65184> Patching: /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184/bin/swamp
swamp-20260901.013347.0-sha.58c65184>   ELF class: 64-bit
swamp-20260901.013347.0-sha.58c65184>   Original entry: 0x2271000 (file offset: 0x2270000)
swamp-20260901.013347.0-sha.58c65184>   Available space at entry: 50417312 bytes
swamp-20260901.013347.0-sha.58c65184>   Stub size: 407 bytes (padded to 416)
swamp-20260901.013347.0-sha.58c65184>   Wrote config to /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184/bin/.swamp.wrapbuddy
swamp-20260901.013347.0-sha.58c65184>   Overwrote 416 bytes at entry point
swamp-20260901.013347.0-sha.58c65184>   Converted PT_INTERP to PT_NULL
swamp-20260901.013347.0-sha.58c65184> Patched: /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184/bin/swamp
swamp-20260901.013347.0-sha.58c65184> Running phase: installCheckPhase
swamp-20260901.013347.0-sha.58c65184> Executing versionCheckPhase
swamp-20260901.013347.0-sha.58c65184> Successfully managed to find version 20260901.013347.0-sha.58c65184 in the output of the command /nix/store/f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184/bin/swamp --version
swamp-20260901.013347.0-sha.58c65184> swamp 20260901.013347.0-sha.58c65184
swamp-20260901.013347.0-sha.58c65184> Finished versionCheckPhase
swamp-20260901.013347.0-sha.58c65184> no Makefile or custom installCheckPhase, doing nothing

post-build step Upload to niks3: ok
time=2026-09-01T09:30:36.153Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (7 already cached)"
time=2026-09-01T09:30:36.153Z level=INFO msg="Uploading f795ykysnzg1iz4w0ppcikd9di2k0qlv-swamp-20260901.013347.0-sha.58c65184 (350.9MB)"
time=2026-09-01T09:30:47.724Z level=INFO msg="Uploading 1 narinfos"
time=2026-09-01T09:30:48.113Z level=INFO msg="Upload complete. (12.43s)"