these 3 derivations will be built:
  /nix/store/pwl8ni6cf8ag4kr2m7iylksdzwxhqn34-treefmt.toml.drv
  /nix/store/qlidyflzkca7k2yfd7wqnmrcl1p7ql23-treefmt.drv
  /nix/store/q9g61lwgpwqrh00v883z5036i152kz65-treefmt-check.drv
error: Cannot build '/nix/store/q9g61lwgpwqrh00v883z5036i152kz65-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/zwqgy85fclgsl21sif193b9dcbm0d7bi-treefmt-check
       Last 19 log lines:
       > tribuchet: building on jamie
       > treefmt v2.5.0traversed 45 files
       > emitted 18 files for processing
       > formatted 18 files (1 changed) in 219ms
       >  M mpd/tests.py
       > diff --git a/mpd/tests.py b/mpd/tests.py
       > index 36c4193..adbe45c 100755
       > --- a/mpd/tests.py
       > +++ b/mpd/tests.py
       > @@ -46,8 +46,7 @@ class TestMPDClient(unittest.TestCase):
       >          self.socket_mock = self.socket_patch.start()
       >          self.socket_mock.getaddrinfo.return_value = [range(5)]
       >
       > -        self.socket_mock.socket.side_effect = (
       > -            lambda *a, **kw:
       > +        self.socket_mock.socket.side_effect = lambda *a, **kw: (
       >              # Create a new socket.socket() mock with default attributes,
       >              # each time we are calling it back (otherwise, it keeps set
       >              # attributes across calls).
       For full logs, run:
         nix log /nix/store/q9g61lwgpwqrh00v883z5036i152kz65-treefmt-check.drv