this derivation will be built:
  /nix/store/kfbgyqg5wsm6x8m9ilk5ba1vxxqkwg29-swamp-20260830.034252.0-sha.43b19693.drv
building '/nix/store/kfbgyqg5wsm6x8m9ilk5ba1vxxqkwg29-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/4sg99r9yyz2alyixaci22qdxcvlgbr12-swamp-20260830.034252.0-sha.43b19693-binary-linux-x86_64.tar.gz
swamp-20260830.034252.0-sha.43b19693> source root is .
swamp-20260830.034252.0-sha.43b19693> setting SOURCE_DATE_EPOCH to timestamp 1788062547 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> shrinking RPATHs of ELF executables and libraries in /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693
swamp-20260830.034252.0-sha.43b19693> shrinking /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693/bin/swamp
swamp-20260830.034252.0-sha.43b19693> checking for references to /build/ in /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693...
swamp-20260830.034252.0-sha.43b19693> patching script interpreter paths in /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693
swamp-20260830.034252.0-sha.43b19693> wrapBuddy: wrapping paths: /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693
swamp-20260830.034252.0-sha.43b19693> Using interpreter: /nix/store/n51dhmdbik1kfrsm62j5knavmigwrl1a-glibc-2.42-84/lib/ld-linux-x86-64.so.2
swamp-20260830.034252.0-sha.43b19693> 64-bit stub: 407 bytes
swamp-20260830.034252.0-sha.43b19693> 32-bit stub: 441 bytes
swamp-20260830.034252.0-sha.43b19693> Patching: /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693/bin/swamp
swamp-20260830.034252.0-sha.43b19693>   ELF class: 64-bit
swamp-20260830.034252.0-sha.43b19693>   Original entry: 0x2271000 (file offset: 0x2270000)
swamp-20260830.034252.0-sha.43b19693>   Available space at entry: 50417312 bytes
swamp-20260830.034252.0-sha.43b19693>   Stub size: 407 bytes (padded to 416)
swamp-20260830.034252.0-sha.43b19693>   Wrote config to /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693/bin/.swamp.wrapbuddy
swamp-20260830.034252.0-sha.43b19693>   Overwrote 416 bytes at entry point
swamp-20260830.034252.0-sha.43b19693>   Converted PT_INTERP to PT_NULL
swamp-20260830.034252.0-sha.43b19693> Patched: /nix/store/86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693/bin/swamp
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/86hyldjnviba42wr1947qs5mq2ib41if-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=2026-08-31T10:32:34.825Z level=INFO msg="Uploading 1 paths to niks3.numtide.com (7 already cached)"
time=2026-08-31T10:32:34.825Z level=INFO msg="Uploading 86hyldjnviba42wr1947qs5mq2ib41if-swamp-20260830.034252.0-sha.43b19693 (350.9MB)"
time=2026-08-31T10:33:39.187Z level=INFO msg="Uploading 1 narinfos"
time=2026-08-31T10:33:39.570Z level=INFO msg="Upload complete. (1m5.738s)"