Dec 11 07:21:51.526 INFO checking travisbhartwell/rbasic against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 07:21:51.526 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 07:21:52.040 INFO [stdout] f4264bac66fdb3163f3d0ca12f8db480de47ec1d3a992867e3703a1860f9ac87
Dec 11 07:21:52.048 INFO running `"docker" "start" "-a" "f4264bac66fdb3163f3d0ca12f8db480de47ec1d3a992867e3703a1860f9ac87"`
Dec 11 07:21:53.796 INFO [stderr] usermod: no changes
Dec 11 07:21:53.852 INFO [stderr]     Checking rbasic v0.1.0 (/source)
Dec 11 07:21:54.568 INFO [stderr] warning: variable does not need to be mutable
Dec 11 07:21:54.568 INFO [stderr]    --> src/evaluator.rs:209:21
Dec 11 07:21:54.568 INFO [stderr]     |
Dec 11 07:21:54.568 INFO [stderr] 209 | fn parse_expression(mut token_iter: &mut Peekable<Iter<lexer::TokenAndPos>>)
Dec 11 07:21:54.568 INFO [stderr]     |                     ----^^^^^^^^^^
Dec 11 07:21:54.568 INFO [stderr]     |                     |
Dec 11 07:21:54.568 INFO [stderr]     |                     help: remove this `mut`
Dec 11 07:21:54.568 INFO [stderr]     |
Dec 11 07:21:54.568 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 07:21:54.568 INFO [stderr] 
Dec 11 07:21:54.568 INFO [stderr] warning: variable does not need to be mutable
Dec 11 07:21:54.568 INFO [stderr]    --> src/evaluator.rs:271:34
Dec 11 07:21:54.568 INFO [stderr]     |
Dec 11 07:21:54.568 INFO [stderr] 271 | fn parse_and_eval_expression<'a>(mut token_iter: &mut Peekable<Iter<'a, lexer::TokenAndPos>>,
Dec 11 07:21:54.568 INFO [stderr]     |                                  ----^^^^^^^^^^
Dec 11 07:21:54.568 INFO [stderr]     |                                  |
Dec 11 07:21:54.568 INFO [stderr]     |                                  help: remove this `mut`
Dec 11 07:21:54.568 INFO [stderr] 
Dec 11 07:21:54.740 INFO [stderr] warning: variable does not need to be mutable
Dec 11 07:21:54.740 INFO [stderr]    --> src/evaluator.rs:209:21
Dec 11 07:21:54.740 INFO [stderr]     |
Dec 11 07:21:54.740 INFO [stderr] 209 | fn parse_expression(mut token_iter: &mut Peekable<Iter<lexer::TokenAndPos>>)
Dec 11 07:21:54.740 INFO [stderr]     |                     ----^^^^^^^^^^
Dec 11 07:21:54.740 INFO [stderr]     |                     |
Dec 11 07:21:54.740 INFO [stderr]     |                     help: remove this `mut`
Dec 11 07:21:54.740 INFO [stderr]     |
Dec 11 07:21:54.740 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 07:21:54.740 INFO [stderr] 
Dec 11 07:21:54.764 INFO [stderr] warning: variable does not need to be mutable
Dec 11 07:21:54.764 INFO [stderr]    --> src/evaluator.rs:271:34
Dec 11 07:21:54.764 INFO [stderr]     |
Dec 11 07:21:54.764 INFO [stderr] 271 | fn parse_and_eval_expression<'a>(mut token_iter: &mut Peekable<Iter<'a, lexer::TokenAndPos>>,
Dec 11 07:21:54.764 INFO [stderr]     |                                  ----^^^^^^^^^^
Dec 11 07:21:54.764 INFO [stderr]     |                                  |
Dec 11 07:21:54.764 INFO [stderr]     |                                  help: remove this `mut`
Dec 11 07:21:54.764 INFO [stderr] 
Dec 11 07:21:55.816 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.00s
Dec 11 07:21:55.820 INFO [stderr] su: No module specific data is present
Dec 11 07:21:56.634 INFO running `"docker" "inspect" "f4264bac66fdb3163f3d0ca12f8db480de47ec1d3a992867e3703a1860f9ac87"`
Dec 11 07:21:56.994 INFO running `"docker" "rm" "-f" "f4264bac66fdb3163f3d0ca12f8db480de47ec1d3a992867e3703a1860f9ac87"`
Dec 11 07:21:57.408 INFO [stdout] f4264bac66fdb3163f3d0ca12f8db480de47ec1d3a992867e3703a1860f9ac87