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λ ~/rust/rustfmt/ master rustup run nightly cargo test
Compiling rustfmt-nightly v0.2.7 (file:///Users/opilar/rust/rustfmt)
warning: unused import: `Write`
--> tests/system.rs:19:47
|
19 | use std::io::{self, BufRead, BufReader, Read, Write};
| ^^^^^
|
= note: #[warn(unused_imports)] on by default
warning: unused imports: `Command`, `Stdio`
--> tests/system.rs:21:20
|
21 | use std::process::{Command, Stdio};
| ^^^^^^^ ^^^^^
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