these 4 derivations will be built:
  /nix/store/ld8y9lkqhj5d7c23mcw481591hc0l57l-python3.14-types-icalendar-6.3.2.20260223.drv
  /nix/store/wv3laq0h6sp9pknz8kvi42i06lj6akd8-treefmt.toml.drv
  /nix/store/h9ql5xzcrdrd64p8xlw9d9b9i21d9niy-treefmt.drv
  /nix/store/rda3g6rad6d79iy2131r82pph4fbb8wj-treefmt-check.drv
these 6 paths will be fetched (981.6 KiB download, 5.3 MiB unpacked):
  /nix/store/4scbf19ncrgmgnpri1amsx599h4rfz2g-python3.14-icalendar-7.2.2
  /nix/store/z2d1n3xg2s8divw2i7bkhizr5p23ribw-python3.14-types-beautifulsoup4-4.12.0.20250516
  /nix/store/rp475fqq1q7w0vgc0brjjfxmmrrz2wwn-python3.14-types-html5lib-1.1.11.20260518
  /nix/store/8x0niklkwglvsc5nsvsh1mlqx0zxdwmj-python3.14-types-python-dateutil-2.9.0.20251115
  /nix/store/il6sdm1wlad8glcmai5lnm4r0xvnks0n-python3.14-types-pytz-2026.1.1.20260304
  /nix/store/a6jxnxm5mns4fz0smjgcgagwksxqb8c1-python3.14-types-webencodings-0.5.0.20260408
error: build of '/nix/store/rda3g6rad6d79iy2131r82pph4fbb8wj-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/rda3g6rad6d79iy2131r82pph4fbb8wj-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/mj0hfwyq2f3ihnjg60ikr7ljqwn3ymss-treefmt-check
       Last 25 log lines:
       >
       > CPY001 Missing copyright notice at top of file
       > --> calendar-cli/tests/test_cache.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> calendar-cli/tests/test_cli.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> calendar-cli/tests/test_import.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> calendar-cli/tests/test_invite.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> calendar-cli/tests/test_reply.py:1:1
       >
       > CPY001 Missing copyright notice at top of file
       > --> calendar-cli/tests/test_store.py:1:1
       >
       > Found 23 errors.
       >
       > traversed 188 files
       > emitted 166 files for processing
       > formatted 81 files (8 changed) in 4.493s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/rda3g6rad6d79iy2131r82pph4fbb8wj-treefmt-check.drv
error: Cannot build '/nix/store/rda3g6rad6d79iy2131r82pph4fbb8wj-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/mj0hfwyq2f3ihnjg60ikr7ljqwn3ymss-treefmt-check