these 2 derivations will be built:
  /nix/store/cclr4cdffnz8f8gb17an1y7qpcd7p80h-niks3-tests-1.15.0.drv
  /nix/store/minpswj0hpafrpgcgd673hzjrfrdkz0x-niks3-go-unit-tests.drv
error: Cannot build '/nix/store/minpswj0hpafrpgcgd673hzjrfrdkz0x-niks3-go-unit-tests.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/j0j9p7wwmq1dh4h5nfcgsml4d18mfk7f-niks3-go-unit-tests
       Last 25 log lines:
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=9 backoff=1ms status=502 url=http://127.0.0.1:33995
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=10 backoff=1ms status=502 url=http://127.0.0.1:33995
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=11 backoff=1ms status=502 url=http://127.0.0.1:33995
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=12 backoff=1ms status=502 url=http://127.0.0.1:33995
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=13 backoff=1ms status=502 url=http://127.0.0.1:33995
       > --- PASS: TestStreamPushRequestLine (0.79s)
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=14 backoff=1ms status=502 url=http://127.0.0.1:33995
       > --- PASS: TestRegisterUploadedObjectReusesConnections (0.78s)
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=15 backoff=1ms status=502 url=http://127.0.0.1:33995
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=16 backoff=1ms status=502 url=http://127.0.0.1:33995
       > 2026/10/11 05:55:00 WARN Request returned retryable status, retrying attempt=17 backoff=1ms status=502 url=http://127.0.0.1:33995
       > --- PASS: TestRetryTimeoutOutlastsMaxRetries (0.79s)
       > --- PASS: TestDumpPathWriterError (0.37s)
       > 2026/10/11 05:55:00 INFO Uploading abc-hello (1.0GB)
       > 2026/10/11 05:55:01 WARN Request failed, retrying attempt=1 backoff=100ms error="Put \"http://127.0.0.1:38411/part/2\": uploading part 1: server returned 404: no such upload\n" url=http://127.0.0.1:38411/part/2
       > 2026/10/11 05:55:01 WARN Request failed, retrying attempt=1 backoff=100ms error="Put \"http://127.0.0.1:38411/part/3\": uploading part 1: server returned 404: no such upload\n" url=http://127.0.0.1:38411/part/3
       > 2026/10/11 05:55:01 ERROR Failed to close zstd encoder error="io: read/write on closed pipe"
       > --- PASS: TestDumpPathMatchesNix (0.84s)
       > --- PASS: TestRateLimiterFeedback_400DoesNotCountAsSuccess (1.23s)
       > --- PASS: TestSupersededNARStillUploadsListing (0.42s)
       >     --- PASS: TestSupersededNARStillUploadsListing/small_NAR (0.35s)
       >     --- PASS: TestSupersededNARStillUploadsListing/listing_upload_fails (0.35s)
       >     --- PASS: TestSupersededNARStillUploadsListing/dump_cut_short (0.90s)
       > --- PASS: TestUploadMultipart_PartsInParallel (1.38s)
       > FAIL
       For full logs, run:
         nix log /nix/store/minpswj0hpafrpgcgd673hzjrfrdkz0x-niks3-go-unit-tests.drv