Dec 04 07:04:11.367 INFO checking wilcoxky/rust-hw04 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 07:04:11.367 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 07:04:11.783 INFO [stdout] ba9314cb4aa69e74f439dc16d0e13cda2479d42bd71bbfe3ee61d0af28161d16
Dec 04 07:04:11.789 INFO running `"docker" "start" "-a" "ba9314cb4aa69e74f439dc16d0e13cda2479d42bd71bbfe3ee61d0af28161d16"`
Dec 04 07:04:13.118 INFO [stderr] usermod: no changes
Dec 04 07:04:13.195 INFO [stderr]     Checking libc v0.2.31
Dec 04 07:04:14.234 INFO [stderr]     Checking rand v0.3.16
Dec 04 07:04:15.471 INFO [stderr]     Checking hw04 v0.1.0 (/source)
Dec 04 07:04:15.924 INFO [stderr] warning: unused variable: `result`
Dec 04 07:04:15.924 INFO [stderr]   --> src/main.rs:27:13
Dec 04 07:04:15.924 INFO [stderr]    |
Dec 04 07:04:15.924 INFO [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
Dec 04 07:04:15.925 INFO [stderr]    |             ^^^^^^ help: consider using `_result` instead
Dec 04 07:04:15.925 INFO [stderr]    |
Dec 04 07:04:15.925 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:04:15.925 INFO [stderr] 
Dec 04 07:04:15.972 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:04:15.972 INFO [stderr]    --> src/rpn.rs:124:21
Dec 04 07:04:15.972 INFO [stderr]     |
Dec 04 07:04:15.972 INFO [stderr] 124 |                     self.push(n);
Dec 04 07:04:15.972 INFO [stderr]     |                     ^^^^^^^^^^^^^
Dec 04 07:04:15.972 INFO [stderr]     |
Dec 04 07:04:15.972 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 07:04:15.972 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:04:15.972 INFO [stderr] 
Dec 04 07:04:15.972 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:04:15.972 INFO [stderr]    --> src/rpn.rs:133:21
Dec 04 07:04:15.972 INFO [stderr]     |
Dec 04 07:04:15.972 INFO [stderr] 133 |                     self.push(first.unwrap());
Dec 04 07:04:15.972 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:04:15.972 INFO [stderr]     |
Dec 04 07:04:15.972 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:04:15.972 INFO [stderr] 
Dec 04 07:04:16.091 INFO [stderr] warning: unused variable: `result`
Dec 04 07:04:16.091 INFO [stderr]   --> src/main.rs:27:13
Dec 04 07:04:16.091 INFO [stderr]    |
Dec 04 07:04:16.091 INFO [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
Dec 04 07:04:16.091 INFO [stderr]    |             ^^^^^^ help: consider using `_result` instead
Dec 04 07:04:16.091 INFO [stderr]    |
Dec 04 07:04:16.091 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 07:04:16.091 INFO [stderr] 
Dec 04 07:04:16.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:04:16.138 INFO [stderr]    --> src/rpn.rs:124:21
Dec 04 07:04:16.138 INFO [stderr]     |
Dec 04 07:04:16.138 INFO [stderr] 124 |                     self.push(n);
Dec 04 07:04:16.138 INFO [stderr]     |                     ^^^^^^^^^^^^^
Dec 04 07:04:16.138 INFO [stderr]     |
Dec 04 07:04:16.138 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 07:04:16.138 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:04:16.138 INFO [stderr] 
Dec 04 07:04:16.138 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 07:04:16.138 INFO [stderr]    --> src/rpn.rs:133:21
Dec 04 07:04:16.138 INFO [stderr]     |
Dec 04 07:04:16.138 INFO [stderr] 133 |                     self.push(first.unwrap());
Dec 04 07:04:16.138 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 07:04:16.138 INFO [stderr]     |
Dec 04 07:04:16.138 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 07:04:16.138 INFO [stderr] 
Dec 04 07:04:16.186 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.03s
Dec 04 07:04:16.186 INFO [stderr] su: No module specific data is present
Dec 04 07:04:17.163 INFO running `"docker" "inspect" "ba9314cb4aa69e74f439dc16d0e13cda2479d42bd71bbfe3ee61d0af28161d16"`
Dec 04 07:04:17.489 INFO running `"docker" "rm" "-f" "ba9314cb4aa69e74f439dc16d0e13cda2479d42bd71bbfe3ee61d0af28161d16"`
Dec 04 07:04:17.811 INFO [stdout] ba9314cb4aa69e74f439dc16d0e13cda2479d42bd71bbfe3ee61d0af28161d16