these 3 derivations will be built:
  /nix/store/nmyanigr83vcrgzvg2bp1havr0h5jiaa-start-postgres-server-test.drv
  /nix/store/bkh8q905nblvfvhmxn5vcwslhlhgbirj-postgres-15-check-harness.drv
  /nix/store/i1xaxlwh8mbjr2cjyih977mavc33vx91-run-check-harness-psql-15-slim.drv
error: Cannot build '/nix/store/i1xaxlwh8mbjr2cjyih977mavc33vx91-run-check-harness-psql-15-slim.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/g8324h7mw4ih3mzmarmdx4a6756krjni-run-check-harness-psql-15-slim
       Last 25 log lines:
       > test supautils_restrict_versions  ... ok           80 ms
       > test vault                        ... ok           28 ms
       > test wal2json                     ... ok           18 ms
       > test z_15_ext_interface           ... FAILED      629 ms
       > test z_15_intarray_ltree_query    ... ok           11 ms
       > test z_15_pg_stat_monitor         ... ok           11 ms
       > test z_15_pgjwt                   ... ok           19 ms
       > test z_15_pgvector                ... ok           35 ms
       > test z_15_plv8                    ... ok           48 ms
       > test z_15_roles                   ... ok           16 ms
       > test z_15_rum                     ... ok           19 ms
       > test z_15_timescale               ... ok           22 ms
       > test z_15_unhype_timescale_to_partman ... ok        12103 ms
       >
       > =======================
       >  4 of 73 tests failed.
       > =======================
       >
       > The differences that caused some tests to fail can be viewed in the
       > file "/nix/store/g8324h7mw4ih3mzmarmdx4a6756krjni-run-check-harness-psql-15-slim/regression_output/regression.diffs".  A copy of the test summary that you see
       > above is saved in the file "/nix/store/g8324h7mw4ih3mzmarmdx4a6756krjni-run-check-harness-psql-15-slim/regression_output/regression.out".
       >
       > 2026-10-26 12:45:09 [ERROR] pg_regress tests failed
       > 2026-10-26 12:45:09 [ERROR] An error occurred. Exit code: 1
       > 2026-10-26 12:45:09 [ERROR] Debug logs:
       For full logs, run:
         nix log /nix/store/i1xaxlwh8mbjr2cjyih977mavc33vx91-run-check-harness-psql-15-slim.drv