in crates/lsp-client/src/msg.rs [108:113]
fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
match ErrorCode::try_from_i32(self.code) {
Ok(code) => write!(f, "{:?} [{}]: {}", code, self.code, self.message),
Err(_) => write!(f, "Unknown error code [{}]: {}", self.code, self.message),
}
}