Installation failure (Homebrew, Crystal 1.8.1)

[benjamineskola]

$ brew install geolessel/homebrew-repo/trello-cli
==> Downloading https://formulae.brew.sh/api/formula.jws.json
#=#=#
==> Fetching geolessel/repo/trello-cli
==> Downloading https://github.com/geolessel/trello-cli/archive/v0.3.0.tar.gz
Already downloaded: /Users/ben/Library/Caches/Homebrew/downloads/2b727c2610b6a674f06340c6cd06de54e31cb7c1849654a2a6a8a8b3cd67e0c6--trello-cli-0.3.0.tar.gz
==> Installing trello-cli from geolessel/repo
==> make
Last 15 lines from /Users/ben/Library/Logs/Homebrew/trello-cli/01.make:
Writing shard.lock
crystal build --release --stats --progress --time src/trello.cr -o bin/trello
Parse:                             00:00:00.000267709 (   0.77MB)
Showing last frame. Use --error-trace for full trace.

In src/app.cr:2:1

 2 | require "logger"
     ^
Error: can't find file 'logger'

If you're trying to require a shard:
- Did you remember to run `shards install`?
- Did you make sure you're running the compiler in the same directory as your shard.yml?
make: *** [make] Error 1el)

If reporting this issue please do so at (not Homebrew/brew or Homebrew/homebrew-core):
  https://github.com/geolessel/homebrew-repo/issues

$ crystal --version
Crystal 1.8.1 (2023-04-20)

LLVM: 15.0.7
Default target: aarch64-apple-darwin22.4.0
$

If I clone the repo and run make manually it works fine, so I'm not sure what's up with the homebrew formula — perhaps something weird with paths?