these 4 derivations will be built:
  /nix/store/jyxlsa3b6x36924c3glk8sx7d3wrk50r-python3.14-types-icalendar-6.3.2.20260223.drv
  /nix/store/y9mqp15ydycsc8jhb2lvw4jw1gm96wg9-treefmt.toml.drv
  /nix/store/m0p70fxqq81g09zfamjqzlglhc1c19ib-treefmt.drv
  /nix/store/mjl1rd338s5py04nwvzimn1dckp36hjk-treefmt-check.drv
these 17 paths will be fetched (3.5 MiB download, 20.6 MiB unpacked):
  /nix/store/mc2ifxz3zl7777sx7gvaky8q2w9dlc14-prettier-3.8.3
  /nix/store/sdh1n4jl3a14nqibi72xdlwfip6kghjl-python-metadata-check-hook.sh
  /nix/store/dszlgxvrcqbi9gqv2agjhj8dfc5sz92h-python3-3.14.6-env
  /nix/store/lfym45gm9blyr4vk5ifbb6p3jmns7yxc-python3.14-beautifulsoup4-4.15.0
  /nix/store/542y62d4329p74iyjxcrvlnwr5i6x2aj-python3.14-icalendar-7.2.0
  /nix/store/w31kw0im6d4lmn12llsp80rqh4k97gn7-python3.14-pexpect-4.9.0
  /nix/store/6pz3qf9xpwc68849005slsx3waphib1b-python3.14-ptyprocess-0.7.0
  /nix/store/abk9lg378m6xryk3cj21avrww5cxbv1m-python3.14-python-dateutil-2.9.0.post0
  /nix/store/dcm56c4jpy6q4d5h6k2c3v3y21amlbr7-python3.14-six-1.17.0
  /nix/store/x2zc2mb9l3gw2r1v1r1vxqk3m6jzcsgg-python3.14-soupsieve-2.8.4
  /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
  /nix/store/zqnli24s1idrygb85w3vhvrh76j8x8kq-python3.14-tzdata-2026.3
  /nix/store/1nyz5ncnnx962ygs7ycsgxfd8m1izcnf-python3.14-websockets-16.1
error: build of '/nix/store/mjl1rd338s5py04nwvzimn1dckp36hjk-treefmt-check.drv' on 'ssh-ng://customer@mac02' failed: Cannot build '/nix/store/mjl1rd338s5py04nwvzimn1dckp36hjk-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/iap4v843gqwjvm79bm7v45ghjjfll4kq-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 182 files
       > emitted 162 files for processing
       > formatted 77 files (8 changed) in 4.215s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/mjl1rd338s5py04nwvzimn1dckp36hjk-treefmt-check.drv
error: Cannot build '/nix/store/mjl1rd338s5py04nwvzimn1dckp36hjk-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/iap4v843gqwjvm79bm7v45ghjjfll4kq-treefmt-check