Nov 29 16:49:06.757 INFO checking tera3939/rustcp_client against master#a49316ddc99d9d595193557fc899f6c52e4d9af9 for pr-56323
Nov 29 16:49:06.757 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-1/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56323/master#a49316ddc99d9d595193557fc899f6c52e4d9af9:/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 +a49316ddc99d9d595193557fc899f6c52e4d9af9-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"`
Nov 29 16:49:07.162 INFO [stdout] b03dc8e404486a64619b528157cd51391cab637dee0b121ed5519228ca91f7f3
Nov 29 16:49:07.169 INFO running `"docker" "start" "-a" "b03dc8e404486a64619b528157cd51391cab637dee0b121ed5519228ca91f7f3"`
Nov 29 16:49:08.528 INFO [stderr] usermod: no changes
Nov 29 16:49:08.562 INFO [stderr]     Checking rustcp_client v0.1.0 (/source)
Nov 29 16:49:08.766 INFO [stderr] warning: unused variable: `buffer`
Nov 29 16:49:08.766 INFO [stderr]   --> src/main.rs:12:13
Nov 29 16:49:08.766 INFO [stderr]    |
Nov 29 16:49:08.766 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:08.766 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Nov 29 16:49:08.766 INFO [stderr]    |
Nov 29 16:49:08.766 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 16:49:08.766 INFO [stderr] 
Nov 29 16:49:08.766 INFO [stderr] warning: variable does not need to be mutable
Nov 29 16:49:08.766 INFO [stderr]   --> src/main.rs:12:9
Nov 29 16:49:08.766 INFO [stderr]    |
Nov 29 16:49:08.766 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:08.766 INFO [stderr]    |         ----^^^^^^
Nov 29 16:49:08.766 INFO [stderr]    |         |
Nov 29 16:49:08.766 INFO [stderr]    |         help: remove this `mut`
Nov 29 16:49:08.766 INFO [stderr]    |
Nov 29 16:49:08.766 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 16:49:08.766 INFO [stderr] 
Nov 29 16:49:08.784 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 16:49:08.784 INFO [stderr]   --> src/main.rs:18:21
Nov 29 16:49:08.784 INFO [stderr]    |
Nov 29 16:49:08.784 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Nov 29 16:49:08.784 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:49:08.784 INFO [stderr]    |
Nov 29 16:49:08.784 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 16:49:08.784 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 16:49:08.784 INFO [stderr] 
Nov 29 16:49:08.792 INFO [stderr] warning: unused variable: `buffer`
Nov 29 16:49:08.792 INFO [stderr]   --> src/main.rs:12:13
Nov 29 16:49:08.792 INFO [stderr]    |
Nov 29 16:49:08.792 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:08.792 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Nov 29 16:49:08.792 INFO [stderr]    |
Nov 29 16:49:08.792 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 29 16:49:08.792 INFO [stderr] 
Nov 29 16:49:08.804 INFO [stderr] warning: variable does not need to be mutable
Nov 29 16:49:08.804 INFO [stderr]   --> src/main.rs:12:9
Nov 29 16:49:08.804 INFO [stderr]    |
Nov 29 16:49:08.804 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 29 16:49:08.804 INFO [stderr]    |         ----^^^^^^
Nov 29 16:49:08.804 INFO [stderr]    |         |
Nov 29 16:49:08.804 INFO [stderr]    |         help: remove this `mut`
Nov 29 16:49:08.804 INFO [stderr]    |
Nov 29 16:49:08.804 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 29 16:49:08.804 INFO [stderr] 
Nov 29 16:49:08.808 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 29 16:49:08.808 INFO [stderr]   --> src/main.rs:18:21
Nov 29 16:49:08.808 INFO [stderr]    |
Nov 29 16:49:08.808 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Nov 29 16:49:08.808 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 29 16:49:08.808 INFO [stderr]    |
Nov 29 16:49:08.808 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 29 16:49:08.808 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 29 16:49:08.808 INFO [stderr] 
Nov 29 16:49:08.840 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.28s
Nov 29 16:49:08.840 INFO [stderr] su: No module specific data is present
Nov 29 16:49:09.400 INFO running `"docker" "inspect" "b03dc8e404486a64619b528157cd51391cab637dee0b121ed5519228ca91f7f3"`
Nov 29 16:49:09.583 INFO running `"docker" "rm" "-f" "b03dc8e404486a64619b528157cd51391cab637dee0b121ed5519228ca91f7f3"`
Nov 29 16:49:09.878 INFO [stdout] b03dc8e404486a64619b528157cd51391cab637dee0b121ed5519228ca91f7f3