this derivation will be built:
  /nix/store/xb3bdrm0p864qwcvlm7qypd37nzcw30v-nix-eval-jobs-functional-tests.drv
error: build of '/nix/store/xb3bdrm0p864qwcvlm7qypd37nzcw30v-nix-eval-jobs-functional-tests.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/xb3bdrm0p864qwcvlm7qypd37nzcw30v-nix-eval-jobs-functional-tests.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ydxskpd6lv8gk75yqq3ak6alcbzqv3ry-nix-eval-jobs-functional-tests
       Last 25 log lines:
       > E         waiting for another Nix process to finish fetching input 'git+file:///nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/flake?ref=refs/heads/master&rev=654d100861eb0d4244b7f5a1081565c738143af6'...
       > E         substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source': done
       > E         substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source': in final_awaiter
       > E         worker event loop worked goal 'substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source'' for 5.775ms
       > E         substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source': goal destroyed
       > E         substitution of input 'git+file:///nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/flake?ref=refs/heads/master&rev=654d100861eb0d4244b7f5a1081565c738143af6' failed: error: path '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source' is required, but there is no substituter that can build it
       > E         substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source': done
       > E         substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source': in final_awaiter
       > E         worker event loop worked goal 'substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source'' for 5.593ms
       > E         substitution of '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source': goal destroyed
       > E         substitution of input 'git+file:///nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/flake?ref=refs/heads/master&rev=654d100861eb0d4244b7f5a1081565c738143af6' failed: error: path '/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/store/ymfllf1cyi2lh9iflx6ckp9dvmlkrhv3-source' is required, but there is no substituter that can build it
       > E       assert 'waiting for... Nix process' not in 'executing N...cess 50048\n'
       > E         
       > E         'waiting for another Nix process' is contained here:
       > E           executing Nix database schema migration '20260309-drop-redundant-indexreferrer'...
       > E           evaluating file '«nix-internal»/derivation-internal.nix'
       > E           locking path "/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/home/.cache/nix/fetcher-locks/edda52db1b279b22dafb6a6cdedec2acbb28f6a696964798c93707cdaf9bba49"
       > E           lock acquired on "/nix/var/nix/builds/nix-49889-4089974294/pytest-of-_nixbld1/pytest-0/test_workers_do_not_race_flake0/home/.cache/nix/fetcher-locks/edda52db1b279b22daf...
       > E         
       > E         ...Full output truncated (603 lines hidden), use '-vv' to show
       >
       > tests-functional/test_eval.py:907: AssertionError
       > =========================== short test summary info ============================
       > FAILED tests-functional/test_eval.py::test_workers_do_not_race_flake_fetch - AssertionError: substitution of '/nix/var/nix/builds/nix-49889-4089974294/p...
       > ========================= 1 failed, 22 passed in 3.88s =========================
       For full logs, run:
         nix log /nix/store/xb3bdrm0p864qwcvlm7qypd37nzcw30v-nix-eval-jobs-functional-tests.drv
error: Cannot build '/nix/store/xb3bdrm0p864qwcvlm7qypd37nzcw30v-nix-eval-jobs-functional-tests.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/ydxskpd6lv8gk75yqq3ak6alcbzqv3ry-nix-eval-jobs-functional-tests