Dec 04 08:13:07.424 INFO checking travisbhartwell/rbasic against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 08:13:07.425 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-1/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 08:13:07.905 INFO [stdout] 5dfbd9b858073a1a73bfaa956f0721fc598fde03b68a7cea7c98e8a7f129b734
Dec 04 08:13:07.912 INFO running `"docker" "start" "-a" "5dfbd9b858073a1a73bfaa956f0721fc598fde03b68a7cea7c98e8a7f129b734"`
Dec 04 08:13:09.619 INFO [stderr] usermod: no changes
Dec 04 08:13:09.691 INFO [stderr]     Checking rbasic v0.1.0 (/source)
Dec 04 08:13:10.771 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:10.772 INFO [stderr]    --> src/evaluator.rs:209:21
Dec 04 08:13:10.772 INFO [stderr]     |
Dec 04 08:13:10.772 INFO [stderr] 209 | fn parse_expression(mut token_iter: &mut Peekable<Iter<lexer::TokenAndPos>>)
Dec 04 08:13:10.772 INFO [stderr]     |                     ----^^^^^^^^^^
Dec 04 08:13:10.772 INFO [stderr]     |                     |
Dec 04 08:13:10.772 INFO [stderr]     |                     help: remove this `mut`
Dec 04 08:13:10.772 INFO [stderr]     |
Dec 04 08:13:10.772 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 08:13:10.772 INFO [stderr] 
Dec 04 08:13:10.780 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:10.781 INFO [stderr]    --> src/evaluator.rs:271:34
Dec 04 08:13:10.781 INFO [stderr]     |
Dec 04 08:13:10.781 INFO [stderr] 271 | fn parse_and_eval_expression<'a>(mut token_iter: &mut Peekable<Iter<'a, lexer::TokenAndPos>>,
Dec 04 08:13:10.781 INFO [stderr]     |                                  ----^^^^^^^^^^
Dec 04 08:13:10.781 INFO [stderr]     |                                  |
Dec 04 08:13:10.781 INFO [stderr]     |                                  help: remove this `mut`
Dec 04 08:13:10.781 INFO [stderr] 
Dec 04 08:13:10.803 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:10.803 INFO [stderr]    --> src/evaluator.rs:209:21
Dec 04 08:13:10.803 INFO [stderr]     |
Dec 04 08:13:10.803 INFO [stderr] 209 | fn parse_expression(mut token_iter: &mut Peekable<Iter<lexer::TokenAndPos>>)
Dec 04 08:13:10.803 INFO [stderr]     |                     ----^^^^^^^^^^
Dec 04 08:13:10.803 INFO [stderr]     |                     |
Dec 04 08:13:10.803 INFO [stderr]     |                     help: remove this `mut`
Dec 04 08:13:10.803 INFO [stderr]     |
Dec 04 08:13:10.803 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 08:13:10.803 INFO [stderr] 
Dec 04 08:13:10.803 INFO [stderr] warning: variable does not need to be mutable
Dec 04 08:13:10.803 INFO [stderr]    --> src/evaluator.rs:271:34
Dec 04 08:13:10.803 INFO [stderr]     |
Dec 04 08:13:10.803 INFO [stderr] 271 | fn parse_and_eval_expression<'a>(mut token_iter: &mut Peekable<Iter<'a, lexer::TokenAndPos>>,
Dec 04 08:13:10.803 INFO [stderr]     |                                  ----^^^^^^^^^^
Dec 04 08:13:10.803 INFO [stderr]     |                                  |
Dec 04 08:13:10.803 INFO [stderr]     |                                  help: remove this `mut`
Dec 04 08:13:10.803 INFO [stderr] 
Dec 04 08:13:11.795 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.16s
Dec 04 08:13:11.795 INFO [stderr] su: No module specific data is present
Dec 04 08:13:12.788 INFO running `"docker" "inspect" "5dfbd9b858073a1a73bfaa956f0721fc598fde03b68a7cea7c98e8a7f129b734"`
Dec 04 08:13:13.135 INFO running `"docker" "rm" "-f" "5dfbd9b858073a1a73bfaa956f0721fc598fde03b68a7cea7c98e8a7f129b734"`
Dec 04 08:13:13.436 INFO [stdout] 5dfbd9b858073a1a73bfaa956f0721fc598fde03b68a7cea7c98e8a7f129b734