this derivation will be built:
  /nix/store/dnjkyffdjh8wg2x47a1ffysc620di2c4-treefmt-check.drv
building '/nix/store/dnjkyffdjh8wg2x47a1ffysc620di2c4-treefmt-check.drv'
treefmt-check> treefmt v2.5.0traversed 157 files
treefmt-check> emitted 93 files for processing
treefmt-check> formatted 93 files (1 changed) in 2.821s
treefmt-check>  M packages/harvest-invoicer/src/harvest_invoicer/app.py
treefmt-check> diff --git a/packages/harvest-invoicer/src/harvest_invoicer/app.py b/packages/harvest-invoicer/src/harvest_invoicer/app.py
treefmt-check> index 7f9216b..9f1c37c 100644
treefmt-check> --- a/packages/harvest-invoicer/src/harvest_invoicer/app.py
treefmt-check> +++ b/packages/harvest-invoicer/src/harvest_invoicer/app.py
treefmt-check> @@ -376,9 +376,7 @@ def create_app(
treefmt-check>          except ValueError:
treefmt-check>              return _respond("Select a valid import range first.", error=True)
treefmt-check>          if pe < ps:
treefmt-check> -            return _respond(
treefmt-check> -                "Import end must not be before import start.", error=True
treefmt-check> -            )
treefmt-check> +            return _respond("Import end must not be before import start.", error=True)
treefmt-check>          if fetch_callback is None:
treefmt-check>              return _respond("Re-fetching is not available in this session.", error=True)
treefmt-check>  
error: Cannot build '/nix/store/dnjkyffdjh8wg2x47a1ffysc620di2c4-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/kdph4di83hr8jf3s5n29jvvm7w5xfxys-treefmt-check
       Last 19 log lines:
       > treefmt v2.5.0traversed 157 files
       > emitted 93 files for processing
       > formatted 93 files (1 changed) in 2.821s
       >  M packages/harvest-invoicer/src/harvest_invoicer/app.py
       > diff --git a/packages/harvest-invoicer/src/harvest_invoicer/app.py b/packages/harvest-invoicer/src/harvest_invoicer/app.py
       > index 7f9216b..9f1c37c 100644
       > --- a/packages/harvest-invoicer/src/harvest_invoicer/app.py
       > +++ b/packages/harvest-invoicer/src/harvest_invoicer/app.py
       > @@ -376,9 +376,7 @@ def create_app(
       >          except ValueError:
       >              return _respond("Select a valid import range first.", error=True)
       >          if pe < ps:
       > -            return _respond(
       > -                "Import end must not be before import start.", error=True
       > -            )
       > +            return _respond("Import end must not be before import start.", error=True)
       >          if fetch_callback is None:
       >              return _respond("Re-fetching is not available in this session.", error=True)
       >  
       For full logs, run:
         nix log /nix/store/dnjkyffdjh8wg2x47a1ffysc620di2c4-treefmt-check.drv