Dec 12 00:58:46.513 INFO checking Pamplemousse/mathematical_expression_evaluation against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 00:58:46.513 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-3/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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 12 00:58:47.090 INFO [stdout] 150515dfa895184b64b4bb923e5d012b4cc1f9a5655579d8a6a96f5c8695d2fc
Dec 12 00:58:47.098 INFO running `"docker" "start" "-a" "150515dfa895184b64b4bb923e5d012b4cc1f9a5655579d8a6a96f5c8695d2fc"`
Dec 12 00:58:48.358 INFO [stderr] usermod: no changes
Dec 12 00:58:48.424 INFO [stderr]     Checking math_eval v0.1.0 (/source)
Dec 12 00:58:48.968 INFO [stderr] warning: unused import: `self::literal::digit::Digit`
Dec 12 00:58:48.968 INFO [stderr]  --> src/tokenizer/token/mod.rs:8:5
Dec 12 00:58:48.968 INFO [stderr]   |
Dec 12 00:58:48.968 INFO [stderr] 8 | use self::literal::digit::Digit;
Dec 12 00:58:48.968 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:58:48.968 INFO [stderr]   |
Dec 12 00:58:48.968 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:58:48.968 INFO [stderr] 
Dec 12 00:58:48.968 INFO [stderr] warning: unused import: `self::token::operator::Operator`
Dec 12 00:58:48.968 INFO [stderr]  --> src/tokenizer/mod.rs:5:5
Dec 12 00:58:48.968 INFO [stderr]   |
Dec 12 00:58:48.968 INFO [stderr] 5 | use self::token::operator::Operator;
Dec 12 00:58:48.968 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:58:48.968 INFO [stderr] 
Dec 12 00:58:49.119 INFO [stderr] warning: method is never used: `from`
Dec 12 00:58:49.119 INFO [stderr]   --> src/tokenizer/token/literal/mod.rs:14:5
Dec 12 00:58:49.119 INFO [stderr]    |
Dec 12 00:58:49.120 INFO [stderr] 14 |     pub fn from(string: String) -> Literal {
Dec 12 00:58:49.120 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:58:49.120 INFO [stderr]    |
Dec 12 00:58:49.120 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 12 00:58:49.120 INFO [stderr] 
Dec 12 00:58:49.268 INFO [stderr] warning: unused import: `self::literal::digit::Digit`
Dec 12 00:58:49.268 INFO [stderr]  --> src/tokenizer/token/mod.rs:8:5
Dec 12 00:58:49.268 INFO [stderr]   |
Dec 12 00:58:49.268 INFO [stderr] 8 | use self::literal::digit::Digit;
Dec 12 00:58:49.268 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:58:49.268 INFO [stderr]   |
Dec 12 00:58:49.268 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 12 00:58:49.268 INFO [stderr] 
Dec 12 00:58:49.268 INFO [stderr] warning: unused import: `self::token::operator::Operator`
Dec 12 00:58:49.268 INFO [stderr]  --> src/tokenizer/mod.rs:5:5
Dec 12 00:58:49.268 INFO [stderr]   |
Dec 12 00:58:49.268 INFO [stderr] 5 | use self::token::operator::Operator;
Dec 12 00:58:49.268 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 12 00:58:49.268 INFO [stderr] 
Dec 12 00:58:49.536 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.15s
Dec 12 00:58:49.545 INFO [stderr] su: No module specific data is present
Dec 12 00:58:50.280 INFO running `"docker" "inspect" "150515dfa895184b64b4bb923e5d012b4cc1f9a5655579d8a6a96f5c8695d2fc"`
Dec 12 00:58:50.590 INFO running `"docker" "rm" "-f" "150515dfa895184b64b4bb923e5d012b4cc1f9a5655579d8a6a96f5c8695d2fc"`
Dec 12 00:58:50.948 INFO [stdout] 150515dfa895184b64b4bb923e5d012b4cc1f9a5655579d8a6a96f5c8695d2fc