this derivation will be built:
  /nix/store/64i11nc91j7cd8m41qijdvlpkax70h5h-treefmt-check.drv
building '/nix/store/64i11nc91j7cd8m41qijdvlpkax70h5h-treefmt-check.drv'
treefmt-check> tribuchet: building on jamie
treefmt-check> treefmt v2.5.0traversed 317 files
treefmt-check> emitted 248 files for processing
treefmt-check> formatted 248 files (1 changed) in 298ms
treefmt-check>  M harmonia-store-ref-scan/src/lib.rs
treefmt-check> diff --git a/harmonia-store-ref-scan/src/lib.rs b/harmonia-store-ref-scan/src/lib.rs
treefmt-check> index 7400ea8..f5e1336 100644
treefmt-check> --- a/harmonia-store-ref-scan/src/lib.rs
treefmt-check> +++ b/harmonia-store-ref-scan/src/lib.rs
treefmt-check> @@ -344,8 +344,7 @@ mod boundary_tests {
treefmt-check>      /// leaves j==0, which the old guard mistook for a fully-valid window.
treefmt-check>      #[test]
treefmt-check>      fn invalid_byte_before_boundary_straddling_hash() {
treefmt-check> -        let sp =
treefmt-check> -            StorePath::from_base_path("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-input").unwrap();
treefmt-check> +        let sp = StorePath::from_base_path("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-input").unwrap();
treefmt-check>          let mut cands = BTreeSet::new();
treefmt-check>          cands.insert(sp.clone());
treefmt-check>          let hash = b"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
error: Cannot build '/nix/store/64i11nc91j7cd8m41qijdvlpkax70h5h-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/90sxskb7dzinmr2k8fk3gn6732k4qq68-treefmt-check
       Last 19 log lines:
       > tribuchet: building on jamie
       > treefmt v2.5.0traversed 317 files
       > emitted 248 files for processing
       > formatted 248 files (1 changed) in 298ms
       >  M harmonia-store-ref-scan/src/lib.rs
       > diff --git a/harmonia-store-ref-scan/src/lib.rs b/harmonia-store-ref-scan/src/lib.rs
       > index 7400ea8..f5e1336 100644
       > --- a/harmonia-store-ref-scan/src/lib.rs
       > +++ b/harmonia-store-ref-scan/src/lib.rs
       > @@ -344,8 +344,7 @@ mod boundary_tests {
       >      /// leaves j==0, which the old guard mistook for a fully-valid window.
       >      #[test]
       >      fn invalid_byte_before_boundary_straddling_hash() {
       > -        let sp =
       > -            StorePath::from_base_path("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-input").unwrap();
       > +        let sp = StorePath::from_base_path("aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa-input").unwrap();
       >          let mut cands = BTreeSet::new();
       >          cands.insert(sp.clone());
       >          let hash = b"aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa";
       For full logs, run:
         nix log /nix/store/64i11nc91j7cd8m41qijdvlpkax70h5h-treefmt-check.drv