t_wの輪郭
RSS
Box
Rust
Error
Box<Error>
2022/2/24 7:15:00
Result<(), Box<Error>>
Box<Error>
Result
Rust
error[E0782]: trait objects must include the dyn keyword
Result<(), Box<Error>>
2022/2/24 7:35:00
error[E0782]: trait objects must include the dyn keyword