Dec 19 22:27:13.549 INFO checking Pamplemousse/mathematical_expression_evaluation against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 22:27:13.549 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Pamplemousse/mathematical_expression_evaluation:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 22:27:14.013 INFO [stdout] 3f30271a66652b3a0aee1eedd0951a93f11a4a8e025ea5d44b8714e255fc7dbd
Dec 19 22:27:14.016 INFO running `"docker" "start" "-a" "3f30271a66652b3a0aee1eedd0951a93f11a4a8e025ea5d44b8714e255fc7dbd"`
Dec 19 22:27:15.748 INFO [stderr]     Checking math_eval v0.1.0 (/opt/crater/workdir)
Dec 19 22:27:16.052 INFO [stderr] warning: unused import: `self::literal::digit::Digit`
Dec 19 22:27:16.052 INFO [stderr]  --> src/tokenizer/token/mod.rs:8:5
Dec 19 22:27:16.052 INFO [stderr]   |
Dec 19 22:27:16.052 INFO [stderr] 8 | use self::literal::digit::Digit;
Dec 19 22:27:16.052 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:27:16.052 INFO [stderr]   |
Dec 19 22:27:16.052 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 22:27:16.052 INFO [stderr] 
Dec 19 22:27:16.052 INFO [stderr] warning: unused import: `self::token::operator::Operator`
Dec 19 22:27:16.052 INFO [stderr]  --> src/tokenizer/mod.rs:5:5
Dec 19 22:27:16.052 INFO [stderr]   |
Dec 19 22:27:16.052 INFO [stderr] 5 | use self::token::operator::Operator;
Dec 19 22:27:16.052 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:27:16.052 INFO [stderr] 
Dec 19 22:27:16.064 INFO [stderr] warning: unused import: `self::literal::digit::Digit`
Dec 19 22:27:16.064 INFO [stderr]  --> src/tokenizer/token/mod.rs:8:5
Dec 19 22:27:16.064 INFO [stderr]   |
Dec 19 22:27:16.064 INFO [stderr] 8 | use self::literal::digit::Digit;
Dec 19 22:27:16.064 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:27:16.064 INFO [stderr]   |
Dec 19 22:27:16.064 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 22:27:16.064 INFO [stderr] 
Dec 19 22:27:16.064 INFO [stderr] warning: unused import: `self::token::operator::Operator`
Dec 19 22:27:16.064 INFO [stderr]  --> src/tokenizer/mod.rs:5:5
Dec 19 22:27:16.064 INFO [stderr]   |
Dec 19 22:27:16.064 INFO [stderr] 5 | use self::token::operator::Operator;
Dec 19 22:27:16.064 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:27:16.064 INFO [stderr] 
Dec 19 22:27:16.208 INFO [stderr] warning: method is never used: `from`
Dec 19 22:27:16.208 INFO [stderr]   --> src/tokenizer/token/literal/mod.rs:14:5
Dec 19 22:27:16.208 INFO [stderr]    |
Dec 19 22:27:16.208 INFO [stderr] 14 |     pub fn from(string: String) -> Literal {
Dec 19 22:27:16.208 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 22:27:16.208 INFO [stderr]    |
Dec 19 22:27:16.208 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 22:27:16.208 INFO [stderr] 
Dec 19 22:27:16.299 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.59s
Dec 19 22:27:17.110 INFO running `"docker" "inspect" "3f30271a66652b3a0aee1eedd0951a93f11a4a8e025ea5d44b8714e255fc7dbd"`
Dec 19 22:27:17.411 INFO running `"docker" "rm" "-f" "3f30271a66652b3a0aee1eedd0951a93f11a4a8e025ea5d44b8714e255fc7dbd"`
Dec 19 22:27:17.680 INFO [stdout] 3f30271a66652b3a0aee1eedd0951a93f11a4a8e025ea5d44b8714e255fc7dbd