Dec 19 05:32:09.337 INFO checking wilcoxky/rust-hw04 against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 05:32:09.337 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/wilcoxky/rust-hw04:/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 05:32:09.818 INFO [stdout] 8e3121e29aa24c81714508e1a95ed0bca4b444293a208df82494b0a2bdc6704e
Dec 19 05:32:09.820 INFO running `"docker" "start" "-a" "8e3121e29aa24c81714508e1a95ed0bca4b444293a208df82494b0a2bdc6704e"`
Dec 19 05:32:11.528 INFO [stderr]     Checking hw04 v0.1.0 (/opt/crater/workdir)
Dec 19 05:32:11.863 INFO [stderr] warning: unused variable: `result`
Dec 19 05:32:11.863 INFO [stderr]   --> src/main.rs:27:13
Dec 19 05:32:11.863 INFO [stderr]    |
Dec 19 05:32:11.863 INFO [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
Dec 19 05:32:11.863 INFO [stderr]    |             ^^^^^^ help: consider using `_result` instead
Dec 19 05:32:11.863 INFO [stderr]    |
Dec 19 05:32:11.863 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 05:32:11.863 INFO [stderr] 
Dec 19 05:32:11.880 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:32:11.880 INFO [stderr]    --> src/rpn.rs:124:21
Dec 19 05:32:11.880 INFO [stderr]     |
Dec 19 05:32:11.880 INFO [stderr] 124 |                     self.push(n);
Dec 19 05:32:11.880 INFO [stderr]     |                     ^^^^^^^^^^^^^
Dec 19 05:32:11.880 INFO [stderr]     |
Dec 19 05:32:11.880 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 05:32:11.880 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:32:11.880 INFO [stderr] 
Dec 19 05:32:11.880 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:32:11.880 INFO [stderr]    --> src/rpn.rs:133:21
Dec 19 05:32:11.880 INFO [stderr]     |
Dec 19 05:32:11.880 INFO [stderr] 133 |                     self.push(first.unwrap());
Dec 19 05:32:11.880 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:32:11.880 INFO [stderr]     |
Dec 19 05:32:11.880 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:32:11.880 INFO [stderr] 
Dec 19 05:32:11.952 INFO [stderr] warning: unused variable: `result`
Dec 19 05:32:11.952 INFO [stderr]   --> src/main.rs:27:13
Dec 19 05:32:11.952 INFO [stderr]    |
Dec 19 05:32:11.952 INFO [stderr] 27 |         let result = evaluate_line(&mut stack, &buffer);
Dec 19 05:32:11.952 INFO [stderr]    |             ^^^^^^ help: consider using `_result` instead
Dec 19 05:32:11.952 INFO [stderr]    |
Dec 19 05:32:11.952 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 19 05:32:11.952 INFO [stderr] 
Dec 19 05:32:12.019 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:32:12.019 INFO [stderr]    --> src/rpn.rs:124:21
Dec 19 05:32:12.019 INFO [stderr]     |
Dec 19 05:32:12.019 INFO [stderr] 124 |                     self.push(n);
Dec 19 05:32:12.019 INFO [stderr]     |                     ^^^^^^^^^^^^^
Dec 19 05:32:12.019 INFO [stderr]     |
Dec 19 05:32:12.019 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 05:32:12.019 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:32:12.019 INFO [stderr] 
Dec 19 05:32:12.019 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 05:32:12.019 INFO [stderr]    --> src/rpn.rs:133:21
Dec 19 05:32:12.019 INFO [stderr]     |
Dec 19 05:32:12.019 INFO [stderr] 133 |                     self.push(first.unwrap());
Dec 19 05:32:12.019 INFO [stderr]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 05:32:12.019 INFO [stderr]     |
Dec 19 05:32:12.019 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 05:32:12.020 INFO [stderr] 
Dec 19 05:32:12.103 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
Dec 19 05:32:13.144 INFO running `"docker" "inspect" "8e3121e29aa24c81714508e1a95ed0bca4b444293a208df82494b0a2bdc6704e"`
Dec 19 05:32:13.522 INFO running `"docker" "rm" "-f" "8e3121e29aa24c81714508e1a95ed0bca4b444293a208df82494b0a2bdc6704e"`
Dec 19 05:32:13.860 INFO [stdout] 8e3121e29aa24c81714508e1a95ed0bca4b444293a208df82494b0a2bdc6704e