Question about elixirc's static code analysis

FWIW,

$ elixirc --version
Erlang/OTP 28 [erts-16.0.1] [source] [64-bit] [smp:10:10] [ds:10:10:10] [async-threads:1] [jit] [dtrace]

Elixir 1.18.4 (compiled with Erlang/OTP 27)