Dec 19 07:25:02.977 INFO checking tera3939/rustcp_client against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 07:25:02.977 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/tera3939/rustcp_client:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 07:25:03.418 INFO [stdout] 14de0886d207c5ed328e02f8c6c70d6237f66f337271d796533176167d659428
Dec 19 07:25:03.420 INFO running `"docker" "start" "-a" "14de0886d207c5ed328e02f8c6c70d6237f66f337271d796533176167d659428"`
Dec 19 07:25:05.108 INFO [stderr]     Checking rustcp_client v0.1.0 (/opt/crater/workdir)
Dec 19 07:25:05.277 INFO [stderr] warning: unused variable: `buffer`
Dec 19 07:25:05.277 INFO [stderr]   --> src/main.rs:12:13
Dec 19 07:25:05.277 INFO [stderr]    |
Dec 19 07:25:05.277 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 19 07:25:05.277 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 19 07:25:05.277 INFO [stderr]    |
Dec 19 07:25:05.281 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 07:25:05.281 INFO [stderr] 
Dec 19 07:25:05.284 INFO [stderr] warning: variable does not need to be mutable
Dec 19 07:25:05.284 INFO [stderr]   --> src/main.rs:12:9
Dec 19 07:25:05.284 INFO [stderr]    |
Dec 19 07:25:05.284 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 19 07:25:05.284 INFO [stderr]    |         ----^^^^^^
Dec 19 07:25:05.284 INFO [stderr]    |         |
Dec 19 07:25:05.284 INFO [stderr]    |         help: remove this `mut`
Dec 19 07:25:05.284 INFO [stderr]    |
Dec 19 07:25:05.284 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 07:25:05.284 INFO [stderr] 
Dec 19 07:25:05.300 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:25:05.300 INFO [stderr]   --> src/main.rs:18:21
Dec 19 07:25:05.300 INFO [stderr]    |
Dec 19 07:25:05.300 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Dec 19 07:25:05.300 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:25:05.300 INFO [stderr]    |
Dec 19 07:25:05.300 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:25:05.300 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:25:05.300 INFO [stderr] 
Dec 19 07:25:05.413 INFO [stderr] warning: unused variable: `buffer`
Dec 19 07:25:05.413 INFO [stderr]   --> src/main.rs:12:13
Dec 19 07:25:05.413 INFO [stderr]    |
Dec 19 07:25:05.413 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 19 07:25:05.413 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Dec 19 07:25:05.413 INFO [stderr]    |
Dec 19 07:25:05.416 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 07:25:05.416 INFO [stderr] 
Dec 19 07:25:05.436 INFO [stderr] warning: variable does not need to be mutable
Dec 19 07:25:05.436 INFO [stderr]   --> src/main.rs:12:9
Dec 19 07:25:05.436 INFO [stderr]    |
Dec 19 07:25:05.436 INFO [stderr] 12 |     let mut buffer = String::new();
Dec 19 07:25:05.436 INFO [stderr]    |         ----^^^^^^
Dec 19 07:25:05.436 INFO [stderr]    |         |
Dec 19 07:25:05.436 INFO [stderr]    |         help: remove this `mut`
Dec 19 07:25:05.436 INFO [stderr]    |
Dec 19 07:25:05.436 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 07:25:05.436 INFO [stderr] 
Dec 19 07:25:05.452 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 07:25:05.452 INFO [stderr]   --> src/main.rs:18:21
Dec 19 07:25:05.452 INFO [stderr]    |
Dec 19 07:25:05.452 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Dec 19 07:25:05.452 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 07:25:05.452 INFO [stderr]    |
Dec 19 07:25:05.452 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 19 07:25:05.452 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 07:25:05.452 INFO [stderr] 
Dec 19 07:25:05.480 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.44s
Dec 19 07:25:06.070 INFO running `"docker" "inspect" "14de0886d207c5ed328e02f8c6c70d6237f66f337271d796533176167d659428"`
Dec 19 07:25:06.348 INFO running `"docker" "rm" "-f" "14de0886d207c5ed328e02f8c6c70d6237f66f337271d796533176167d659428"`
Dec 19 07:25:06.682 INFO [stdout] 14de0886d207c5ed328e02f8c6c70d6237f66f337271d796533176167d659428