this derivation will be built:
  /nix/store/36v94skxzsv41yidxf845xv81pmpai6x-treefmt-check.drv
error: Cannot build '/nix/store/36v94skxzsv41yidxf845xv81pmpai6x-treefmt-check.drv'.
       Reason: builder failed with exit code 1.
       Output paths:
         /nix/store/5r7a00mvx19f4j35dqhpjv8rz8x0xyhj-treefmt-check
       Last 25 log lines:
       >     │   ╰────────────'
       > 428 │     │ ╭         /// alice and bob each dial only relay: alice over IPv4, bob over IPv6,
       >     │     ╰──────────'
       > 429 │       │ ╭       /// so the edges advertise alice at `127.0.0.1` and bob at `::1`. IPv4
       >     │       ╰────────'
       > 430 │         │ ╭     /// UDP between them is dropped first, so they confirm each other over
       >     │         ╰──────'
       > 431 │           │ ╭   /// IPv6 and each learns the other's `::1` source. Then IPv6 UDP between
       >     │           ╰────'
       > 432 │             │ ╭ /// them dies and IPv4 opens: bob must find alice's IPv4 edge address
       >     │             ╰──'
       > 433 │ ╭             │ /// again instead of probing only the dead `::1` one.
       >     │ │             ╰'
       > 434 │ │               #[test]
       >     │ │               -------
       >     │ ╰──────────────^
       >
       > Error: 1 error(s) found in code.
       > Help: Scan succeeded and found error level diagnostics in the codebase.
       >
       >
       > traversed 771 files
       > emitted 314 files for processing
       > formatted 28 files (0 changed) in 1.882s
       > Error: failed to finalise formatting: formatting failures detected
       For full logs, run:
         nix log /nix/store/36v94skxzsv41yidxf845xv81pmpai6x-treefmt-check.drv