Dec 04 08:13:07.190 INFO checking travisbhartwell/rbasic against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 08:13:07.191 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/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 08:13:07.774 INFO [stdout] e9ea253037c3ac3de5fa872134ac6a21923c5d47a219bc31fab2c8b74c2119c3
Dec 04 08:13:07.775 INFO running `"docker" "start" "-a" "e9ea253037c3ac3de5fa872134ac6a21923c5d47a219bc31fab2c8b74c2119c3"`
Dec 04 08:13:09.123 INFO [stderr] usermod: no changes
Dec 04 08:13:09.199 INFO [stderr]     Checking rbasic v0.1.0 (/source)
Dec 04 08:13:09.775 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:09.775 INFO [stderr]    --> src/evaluator.rs:209:21
Dec 04 08:13:09.775 INFO [stderr]     |
Dec 04 08:13:09.775 INFO [stderr] 209 | fn parse_expression(mut token_iter: &mut Peekable<Iter<lexer::TokenAndPos>>)
Dec 04 08:13:09.775 INFO [stderr]     |                     ----^^^^^^^^^^
Dec 04 08:13:09.775 INFO [stderr]     |                     |
Dec 04 08:13:09.775 INFO [stderr]     |                     help: remove this `mut`
Dec 04 08:13:09.775 INFO [stderr]     |
Dec 04 08:13:09.775 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 08:13:09.775 INFO [stderr] 
Dec 04 08:13:09.783 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:09.783 INFO [stderr]    --> src/evaluator.rs:271:34
Dec 04 08:13:09.783 INFO [stderr]     |
Dec 04 08:13:09.783 INFO [stderr] 271 | fn parse_and_eval_expression<'a>(mut token_iter: &mut Peekable<Iter<'a, lexer::TokenAndPos>>,
Dec 04 08:13:09.783 INFO [stderr]     |                                  ----^^^^^^^^^^
Dec 04 08:13:09.783 INFO [stderr]     |                                  |
Dec 04 08:13:09.783 INFO [stderr]     |                                  help: remove this `mut`
Dec 04 08:13:09.783 INFO [stderr] 
Dec 04 08:13:09.915 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:09.915 INFO [stderr]    --> src/evaluator.rs:209:21
Dec 04 08:13:09.915 INFO [stderr]     |
Dec 04 08:13:09.915 INFO [stderr] 209 | fn parse_expression(mut token_iter: &mut Peekable<Iter<lexer::TokenAndPos>>)
Dec 04 08:13:09.915 INFO [stderr]     |                     ----^^^^^^^^^^
Dec 04 08:13:09.915 INFO [stderr]     |                     |
Dec 04 08:13:09.915 INFO [stderr]     |                     help: remove this `mut`
Dec 04 08:13:09.915 INFO [stderr]     |
Dec 04 08:13:09.915 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 08:13:09.915 INFO [stderr] 
Dec 04 08:13:09.919 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:09.919 INFO [stderr]    --> src/evaluator.rs:271:34
Dec 04 08:13:09.919 INFO [stderr]     |
Dec 04 08:13:09.919 INFO [stderr] 271 | fn parse_and_eval_expression<'a>(mut token_iter: &mut Peekable<Iter<'a, lexer::TokenAndPos>>,
Dec 04 08:13:09.919 INFO [stderr]     |                                  ----^^^^^^^^^^
Dec 04 08:13:09.919 INFO [stderr]     |                                  |
Dec 04 08:13:09.919 INFO [stderr]     |                                  help: remove this `mut`
Dec 04 08:13:09.919 INFO [stderr] 
Dec 04 08:13:10.901 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.75s
Dec 04 08:13:10.902 INFO [stderr] su: No module specific data is present
Dec 04 08:13:12.406 INFO running `"docker" "inspect" "e9ea253037c3ac3de5fa872134ac6a21923c5d47a219bc31fab2c8b74c2119c3"`
Dec 04 08:13:12.747 INFO running `"docker" "rm" "-f" "e9ea253037c3ac3de5fa872134ac6a21923c5d47a219bc31fab2c8b74c2119c3"`
Dec 04 08:13:13.035 INFO [stdout] e9ea253037c3ac3de5fa872134ac6a21923c5d47a219bc31fab2c8b74c2119c3