Dec 18 06:01:33.194 INFO checking Pamplemousse/mathematical_expression_evaluation against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 06:01:33.194 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 06:01:33.684 INFO [stdout] 3bca84d0edc00ff64fa79c87e9048052d20c30afc81ee016c567dc4af2f697f0
Dec 18 06:01:33.688 INFO running `"docker" "start" "-a" "3bca84d0edc00ff64fa79c87e9048052d20c30afc81ee016c567dc4af2f697f0"`
Dec 18 06:01:34.556 INFO [stderr]     Checking math_eval v0.1.0 (/opt/crater/workdir)
Dec 18 06:01:34.772 INFO [stderr] warning: unused import: `self::literal::digit::Digit`
Dec 18 06:01:34.772 INFO [stderr]  --> src/tokenizer/token/mod.rs:8:5
Dec 18 06:01:34.772 INFO [stderr]   |
Dec 18 06:01:34.772 INFO [stderr] 8 | use self::literal::digit::Digit;
Dec 18 06:01:34.772 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:01:34.772 INFO [stderr]   |
Dec 18 06:01:34.772 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:01:34.772 INFO [stderr] 
Dec 18 06:01:34.772 INFO [stderr] warning: unused import: `self::token::operator::Operator`
Dec 18 06:01:34.772 INFO [stderr]  --> src/tokenizer/mod.rs:5:5
Dec 18 06:01:34.772 INFO [stderr]   |
Dec 18 06:01:34.772 INFO [stderr] 5 | use self::token::operator::Operator;
Dec 18 06:01:34.773 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:01:34.773 INFO [stderr] 
Dec 18 06:01:34.776 INFO [stderr] warning: unused import: `self::literal::digit::Digit`
Dec 18 06:01:34.776 INFO [stderr]  --> src/tokenizer/token/mod.rs:8:5
Dec 18 06:01:34.776 INFO [stderr]   |
Dec 18 06:01:34.776 INFO [stderr] 8 | use self::literal::digit::Digit;
Dec 18 06:01:34.776 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:01:34.776 INFO [stderr]   |
Dec 18 06:01:34.776 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 06:01:34.776 INFO [stderr] 
Dec 18 06:01:34.776 INFO [stderr] warning: unused import: `self::token::operator::Operator`
Dec 18 06:01:34.776 INFO [stderr]  --> src/tokenizer/mod.rs:5:5
Dec 18 06:01:34.776 INFO [stderr]   |
Dec 18 06:01:34.776 INFO [stderr] 5 | use self::token::operator::Operator;
Dec 18 06:01:34.776 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:01:34.776 INFO [stderr] 
Dec 18 06:01:34.878 INFO [stderr] warning: method is never used: `from`
Dec 18 06:01:34.878 INFO [stderr]   --> src/tokenizer/token/literal/mod.rs:14:5
Dec 18 06:01:34.878 INFO [stderr]    |
Dec 18 06:01:34.878 INFO [stderr] 14 |     pub fn from(string: String) -> Literal {
Dec 18 06:01:34.878 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 06:01:34.878 INFO [stderr]    |
Dec 18 06:01:34.878 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 06:01:34.878 INFO [stderr] 
Dec 18 06:01:35.035 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
Dec 18 06:01:35.406 INFO running `"docker" "inspect" "3bca84d0edc00ff64fa79c87e9048052d20c30afc81ee016c567dc4af2f697f0"`
Dec 18 06:01:35.498 INFO running `"docker" "rm" "-f" "3bca84d0edc00ff64fa79c87e9048052d20c30afc81ee016c567dc4af2f697f0"`
Dec 18 06:01:35.581 INFO [stdout] 3bca84d0edc00ff64fa79c87e9048052d20c30afc81ee016c567dc4af2f697f0