this derivation will be built:
  /nix/store/ky4bcxgri69qr95cmr0w0wj40xpf7sby-treefmt-535da87.drv
error: Cannot build '/nix/store/ky4bcxgri69qr95cmr0w0wj40xpf7sby-treefmt-535da87.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/wx1llk9db8dgw5s467y7p2z9zz7ijk0k-treefmt-535da87
       Last 25 log lines:
       > --- PASS: TestFilesystemReaderSubpaths (1.03s)
       > === RUN   TestGitReader
       > --- PASS: TestGitReader (2.13s)
       > === RUN   TestJujutsuReader
       > --- PASS: TestJujutsuReader (1.11s)
       > === RUN   TestJujutsuReaderUsesTreeRoot
       > --- PASS: TestJujutsuReaderUsesTreeRoot (0.06s)
       > === RUN   TestPathStreamReader
       > 2026/10/05 10:31:17 WARN  walk | test walker: Path /build/TestPathStreamReader4265242495/001/missing.txt was emitted by test walker but no file exists at that path
       > --- PASS: TestPathStreamReader (1.01s)
       > === RUN   TestPathStreamReaderSubpath
       > --- PASS: TestPathStreamReaderSubpath (1.01s)
       > === RUN   TestPathStreamReaderPassesPathFilters
       > --- PASS: TestPathStreamReaderPassesPathFilters (1.01s)
       > === RUN   TestPathStreamReaderDelimiters
       > --- PASS: TestPathStreamReaderDelimiters (1.01s)
       > === RUN   TestPathStreamReaderCloseUnblocks
       > --- PASS: TestPathStreamReaderCloseUnblocks (0.04s)
       > === RUN   TestPathStreamReaderCommandFailure
       > --- PASS: TestPathStreamReaderCommandFailure (1.01s)
       > PASS
       > coverage: 35.2% of statements
       > ok  	github.com/numtide/treefmt/v2/walk	12.478s	coverage: 35.2% of statements
       > 	github.com/numtide/treefmt/v2/walk/cache		coverage: 0.0% of statements
       > FAIL
       For full logs, run:
         nix log /nix/store/ky4bcxgri69qr95cmr0w0wj40xpf7sby-treefmt-535da87.drv