Dec 11 08:04:34.961 INFO checking tera3939/rustcp_client against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 08:04:34.961 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 11 08:04:35.469 INFO [stdout] ef7d15e17d4b91fe350e39274b280b5e6217ca9b3777b708c4222ddc31ecae42
Dec 11 08:04:35.471 INFO running `"docker" "start" "-a" "ef7d15e17d4b91fe350e39274b280b5e6217ca9b3777b708c4222ddc31ecae42"`
Dec 11 08:04:36.964 INFO [stderr] usermod: no changes
Dec 11 08:04:37.020 INFO [stderr]     Checking rustcp_client v0.1.0 (/source)
Dec 11 08:04:37.380 INFO [stderr] warning: unused variable: `buffer`
Dec 11 08:04:37.380 INFO [stderr]   --> src/main.rs:12:13
Dec 11 08:04:37.380 INFO [stderr]    |
Dec 11 08:04:37.380 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 11 08:04:37.380 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 11 08:04:37.380 INFO [stderr]    |
Dec 11 08:04:37.380 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 08:04:37.380 INFO [stderr] 
Dec 11 08:04:37.387 INFO [stderr] warning: variable does not need to be mutable
Dec 11 08:04:37.387 INFO [stderr]   --> src/main.rs:12:9
Dec 11 08:04:37.387 INFO [stderr]    |
Dec 11 08:04:37.387 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 11 08:04:37.387 INFO [stderr]    |         ----^^^^^^
Dec 11 08:04:37.387 INFO [stderr]    |         |
Dec 11 08:04:37.387 INFO [stderr]    |         help: remove this `mut`
Dec 11 08:04:37.387 INFO [stderr]    |
Dec 11 08:04:37.387 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 08:04:37.387 INFO [stderr] 
Dec 11 08:04:37.407 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 08:04:37.407 INFO [stderr]   --> src/main.rs:18:21
Dec 11 08:04:37.407 INFO [stderr]    |
Dec 11 08:04:37.407 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Dec 11 08:04:37.407 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:37.412 INFO [stderr]    |
Dec 11 08:04:37.412 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 08:04:37.412 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 08:04:37.412 INFO [stderr] 
Dec 11 08:04:37.446 INFO [stderr] warning: unused variable: `buffer`
Dec 11 08:04:37.446 INFO [stderr]   --> src/main.rs:12:13
Dec 11 08:04:37.446 INFO [stderr]    |
Dec 11 08:04:37.446 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 11 08:04:37.446 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 11 08:04:37.446 INFO [stderr]    |
Dec 11 08:04:37.446 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 08:04:37.447 INFO [stderr] 
Dec 11 08:04:37.455 INFO [stderr] warning: variable does not need to be mutable
Dec 11 08:04:37.455 INFO [stderr]   --> src/main.rs:12:9
Dec 11 08:04:37.455 INFO [stderr]    |
Dec 11 08:04:37.455 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 11 08:04:37.455 INFO [stderr]    |         ----^^^^^^
Dec 11 08:04:37.455 INFO [stderr]    |         |
Dec 11 08:04:37.455 INFO [stderr]    |         help: remove this `mut`
Dec 11 08:04:37.455 INFO [stderr]    |
Dec 11 08:04:37.455 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 08:04:37.455 INFO [stderr] 
Dec 11 08:04:37.485 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 08:04:37.485 INFO [stderr]   --> src/main.rs:18:21
Dec 11 08:04:37.485 INFO [stderr]    |
Dec 11 08:04:37.485 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Dec 11 08:04:37.485 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 08:04:37.485 INFO [stderr]    |
Dec 11 08:04:37.485 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 11 08:04:37.485 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 08:04:37.485 INFO [stderr] 
Dec 11 08:04:37.516 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
Dec 11 08:04:37.522 INFO [stderr] su: No module specific data is present
Dec 11 08:04:38.654 INFO running `"docker" "inspect" "ef7d15e17d4b91fe350e39274b280b5e6217ca9b3777b708c4222ddc31ecae42"`
Dec 11 08:04:39.060 INFO running `"docker" "rm" "-f" "ef7d15e17d4b91fe350e39274b280b5e6217ca9b3777b708c4222ddc31ecae42"`
Dec 11 08:04:39.428 INFO [stdout] ef7d15e17d4b91fe350e39274b280b5e6217ca9b3777b708c4222ddc31ecae42