this derivation will be built:
  /nix/store/r584mvsvlx385h7l4dcxb5avzhzw33z0-harmonia-clippy-3.3.0.drv
error: Cannot build '/nix/store/r584mvsvlx385h7l4dcxb5avzhzw33z0-harmonia-clippy-3.3.0.drv'.
       Reason: builder failed with exit code 101.
       Output paths:
         /nix/store/1xk4syaz2sw4x0r84c7fsngq1rvv4pbk-harmonia-clippy-3.3.0
       Last 25 log lines:
       >     Checking harmonia-store-db v3.3.0 (/private/var/tb/5/scratch/d23b610ca9586e1b/build/source/harmonia-store-db)
       >     Checking harmonia-store-aterm v0.0.0-alpha.0 (/private/var/tb/5/scratch/d23b610ca9586e1b/build/source/harmonia-store-aterm)
       >     Checking harmonia-store-build-result v3.3.0 (/private/var/tb/5/scratch/d23b610ca9586e1b/build/source/harmonia-store-build-result)
       >     Checking harmonia-store-gc v3.3.0 (/private/var/tb/5/scratch/d23b610ca9586e1b/build/source/harmonia-store-gc)
       >     Checking harmonia-cache v3.3.0 (/private/var/tb/5/scratch/d23b610ca9586e1b/build/source/harmonia-cache)
       >     Checking harmonia-protocol v3.3.0 (/private/var/tb/5/scratch/d23b610ca9586e1b/build/source/harmonia-protocol)
       > error: use of a fallible conversion when an infallible one could be used
       >    --> harmonia-protocol/src/store_impls.rs:569:22
       >     |
       > 569 |     #[nix(try_from = "u16")]
       >     |                      ^^^^^
       >     |
       >     = note: converting `u16` to `ActivityType` cannot fail
       >     = help: for further information visit https://rust-lang.github.io/rust-clippy/master/index.html#unnecessary_fallible_conversions
       >     = note: `-D clippy::unnecessary-fallible-conversions` implied by `-D warnings`
       >     = help: to override `-D warnings` add `#[allow(clippy::unnecessary_fallible_conversions)]`
       > help: use
       >     |
       > 569 -     #[nix(try_from = "u16")]
       > 569 +     #[nix(try_from = From::from)]
       >     |
       >
       > error: could not compile `harmonia-protocol` (lib) due to 1 previous error
       > warning: build failed, waiting for other jobs to finish...
       > error: could not compile `harmonia-protocol` (lib test) due to 1 previous error
       For full logs, run:
         nix log /nix/store/r584mvsvlx385h7l4dcxb5avzhzw33z0-harmonia-clippy-3.3.0.drv