Nov 27 18:58:43.723 INFO checking tera3939/rustcp_client against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 27 18:58:43.725 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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 27 18:58:44.149 INFO [stdout] 1f700560ef76f0adc1eb0db2f5ce1cb38c5191fe4568895ae51624a7f5f21ec5
Nov 27 18:58:44.154 INFO running `"docker" "start" "-a" "1f700560ef76f0adc1eb0db2f5ce1cb38c5191fe4568895ae51624a7f5f21ec5"`
Nov 27 18:58:45.256 INFO [stderr] usermod: no changes
Nov 27 18:58:45.311 INFO [stderr]     Checking rustcp_client v0.1.0 (/source)
Nov 27 18:58:45.624 INFO [stderr] warning: unused variable: `buffer`
Nov 27 18:58:45.624 INFO [stderr]   --> src/main.rs:12:13
Nov 27 18:58:45.632 INFO [stderr]    |
Nov 27 18:58:45.632 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 27 18:58:45.632 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Nov 27 18:58:45.632 INFO [stderr]    |
Nov 27 18:58:45.632 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 18:58:45.632 INFO [stderr] 
Nov 27 18:58:45.648 INFO [stderr] warning: variable does not need to be mutable
Nov 27 18:58:45.648 INFO [stderr]   --> src/main.rs:12:9
Nov 27 18:58:45.648 INFO [stderr]    |
Nov 27 18:58:45.648 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 27 18:58:45.648 INFO [stderr]    |         ----^^^^^^
Nov 27 18:58:45.648 INFO [stderr]    |         |
Nov 27 18:58:45.648 INFO [stderr]    |         help: remove this `mut`
Nov 27 18:58:45.648 INFO [stderr]    |
Nov 27 18:58:45.649 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 18:58:45.649 INFO [stderr] 
Nov 27 18:58:45.680 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:58:45.681 INFO [stderr]   --> src/main.rs:18:21
Nov 27 18:58:45.681 INFO [stderr]    |
Nov 27 18:58:45.681 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Nov 27 18:58:45.681 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 18:58:45.681 INFO [stderr]    |
Nov 27 18:58:45.681 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 18:58:45.681 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:58:45.681 INFO [stderr] 
Nov 27 18:58:45.774 INFO [stderr] warning: unused variable: `buffer`
Nov 27 18:58:45.774 INFO [stderr]   --> src/main.rs:12:13
Nov 27 18:58:45.774 INFO [stderr]    |
Nov 27 18:58:45.774 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 27 18:58:45.774 INFO [stderr]    |             ^^^^^^ help: consider using `_buffer` instead
Nov 27 18:58:45.774 INFO [stderr]    |
Nov 27 18:58:45.774 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 27 18:58:45.775 INFO [stderr] 
Nov 27 18:58:45.784 INFO [stderr] warning: variable does not need to be mutable
Nov 27 18:58:45.784 INFO [stderr]   --> src/main.rs:12:9
Nov 27 18:58:45.784 INFO [stderr]    |
Nov 27 18:58:45.784 INFO [stderr] 12 |     let mut buffer = String::new();
Nov 27 18:58:45.784 INFO [stderr]    |         ----^^^^^^
Nov 27 18:58:45.784 INFO [stderr]    |         |
Nov 27 18:58:45.784 INFO [stderr]    |         help: remove this `mut`
Nov 27 18:58:45.784 INFO [stderr]    |
Nov 27 18:58:45.784 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Nov 27 18:58:45.784 INFO [stderr] 
Nov 27 18:58:45.804 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 27 18:58:45.804 INFO [stderr]   --> src/main.rs:18:21
Nov 27 18:58:45.804 INFO [stderr]    |
Nov 27 18:58:45.804 INFO [stderr] 18 |                     stream.write(buffer.as_bytes());
Nov 27 18:58:45.804 INFO [stderr]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 27 18:58:45.804 INFO [stderr]    |
Nov 27 18:58:45.804 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 27 18:58:45.804 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 27 18:58:45.804 INFO [stderr] 
Nov 27 18:58:45.817 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.53s
Nov 27 18:58:45.836 INFO [stderr] su: No module specific data is present
Nov 27 18:58:46.348 INFO running `"docker" "inspect" "1f700560ef76f0adc1eb0db2f5ce1cb38c5191fe4568895ae51624a7f5f21ec5"`
Nov 27 18:58:46.602 INFO running `"docker" "rm" "-f" "1f700560ef76f0adc1eb0db2f5ce1cb38c5191fe4568895ae51624a7f5f21ec5"`
Nov 27 18:58:46.899 INFO [stdout] 1f700560ef76f0adc1eb0db2f5ce1cb38c5191fe4568895ae51624a7f5f21ec5