this derivation will be built:
  /nix/store/w18x4abp6r23isifl60gs4gkl87jn2zh-treefmt-check.drv
error: Cannot build '/nix/store/w18x4abp6r23isifl60gs4gkl87jn2zh-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/r172x8hdwsi43rzpwipi8nf12fz9rjh8-treefmt-check
       Last 25 log lines:
       >              ("rsa", "no Ed25519 public key"),
       >          ] {
       >              let err = invite(&paths, None, who, true, SystemTime::now()).unwrap_err();
       > -            assert!(matches!(&err, CmdError::BadInput(m) if m.contains(want)), "{who}: {err}");
       > +            assert!(
       > +                matches!(&err, CmdError::BadInput(m) if m.contains(want)),
       > +                "{who}: {err}"
       > +            );
       >          }
       >      }
       >
       > diff --git a/crates/tinc-tools/src/cmd/join/tests.rs b/crates/tinc-tools/src/cmd/join/tests.rs
       > index 03087db..084f6f0 100644
       > --- a/crates/tinc-tools/src/cmd/join/tests.rs
       > +++ b/crates/tinc-tools/src/cmd/join/tests.rs
       > @@ -496,7 +496,8 @@ fn invite_join_roundtrip_in_process() {
       >          .append_conf("Mode = switch\n");
       >      let inviter = inviter_cd.paths();
       >
       > -    let inv_result = invite::invite(inviter, Some("acme"), "bob", false, SystemTime::now()).unwrap();
       > +    let inv_result =
       > +        invite::invite(inviter, Some("acme"), "bob", false, SystemTime::now()).unwrap();
       >      let parsed = parse_url(&inv_result.url).unwrap();
       >
       >      // Load invitation key. Both the server stub and the joiner's
       For full logs, run:
         nix log /nix/store/w18x4abp6r23isifl60gs4gkl87jn2zh-treefmt-check.drv