Dec 04 08:51:29.805 INFO checking tera3939/rustcp_client against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 08:51:29.805 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 04 08:51:30.050 INFO [stdout] 7dda4945c6add89ec03e82e0d413379bd889b24323563b2b83213a7fe875ffda
Dec 04 08:51:30.052 INFO running `"docker" "start" "-a" "7dda4945c6add89ec03e82e0d413379bd889b24323563b2b83213a7fe875ffda"`
Dec 04 08:51:30.482 INFO [stderr] usermod: no changes
Dec 04 08:51:30.519 INFO [stderr]     Checking rustcp_client v0.1.0 (/source)
Dec 04 08:51:30.705 INFO [stderr] warning: unused variable: `buffer`
Dec 04 08:51:30.705 INFO [stderr]   --> src/main.rs:12:13
Dec 04 08:51:30.705 INFO [stderr]    |
Dec 04 08:51:30.705 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 04 08:51:30.705 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 04 08:51:30.705 INFO [stderr]    |
Dec 04 08:51:30.705 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 08:51:30.705 INFO [stderr] 
Dec 04 08:51:30.705 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:51:30.705 INFO [stderr]   --> src/main.rs:12:9
Dec 04 08:51:30.705 INFO [stderr]    |
Dec 04 08:51:30.705 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 04 08:51:30.705 INFO [stderr]    |         ----^^^^^^
Dec 04 08:51:30.705 INFO [stderr]    |         |
Dec 04 08:51:30.705 INFO [stderr]    |         help: remove this `mut`
Dec 04 08:51:30.705 INFO [stderr]    |
Dec 04 08:51:30.705 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 08:51:30.705 INFO [stderr] 
Dec 04 08:51:30.710 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:51:30.710 INFO [stderr]   --> src/main.rs:18:21
Dec 04 08:51:30.710 INFO [stderr]    |
Dec 04 08:51:30.710 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Dec 04 08:51:30.710 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:51:30.710 INFO [stderr]    |
Dec 04 08:51:30.713 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 08:51:30.713 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:51:30.713 INFO [stderr] 
Dec 04 08:51:30.723 INFO [stderr] warning: unused variable: `buffer`
Dec 04 08:51:30.723 INFO [stderr]   --> src/main.rs:12:13
Dec 04 08:51:30.723 INFO [stderr]    |
Dec 04 08:51:30.723 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 04 08:51:30.723 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 04 08:51:30.723 INFO [stderr]    |
Dec 04 08:51:30.723 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 08:51:30.723 INFO [stderr] 
Dec 04 08:51:30.735 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:51:30.735 INFO [stderr]   --> src/main.rs:12:9
Dec 04 08:51:30.735 INFO [stderr]    |
Dec 04 08:51:30.735 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 04 08:51:30.735 INFO [stderr]    |         ----^^^^^^
Dec 04 08:51:30.735 INFO [stderr]    |         |
Dec 04 08:51:30.735 INFO [stderr]    |         help: remove this `mut`
Dec 04 08:51:30.735 INFO [stderr]    |
Dec 04 08:51:30.735 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 08:51:30.735 INFO [stderr] 
Dec 04 08:51:30.738 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 08:51:30.738 INFO [stderr]   --> src/main.rs:18:21
Dec 04 08:51:30.738 INFO [stderr]    |
Dec 04 08:51:30.738 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Dec 04 08:51:30.738 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:51:30.738 INFO [stderr]    |
Dec 04 08:51:30.738 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 04 08:51:30.738 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 08:51:30.738 INFO [stderr] 
Dec 04 08:51:30.757 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
Dec 04 08:51:30.758 INFO [stderr] su: No module specific data is present
Dec 04 08:51:31.265 INFO running `"docker" "inspect" "7dda4945c6add89ec03e82e0d413379bd889b24323563b2b83213a7fe875ffda"`
Dec 04 08:51:31.366 INFO running `"docker" "rm" "-f" "7dda4945c6add89ec03e82e0d413379bd889b24323563b2b83213a7fe875ffda"`
Dec 04 08:51:31.550 INFO [stdout] 7dda4945c6add89ec03e82e0d413379bd889b24323563b2b83213a7fe875ffda