Dec 11 07:00:26.111 INFO checking underflowed/text-adventure-game-in-rust against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 07:00:26.111 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-1/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/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 07:00:26.576 INFO [stdout] 2addf945fdda6586d7f98d0f4ff171d21f639b681a383fb81335302db0bef82e
Dec 11 07:00:26.584 INFO running `"docker" "start" "-a" "2addf945fdda6586d7f98d0f4ff171d21f639b681a383fb81335302db0bef82e"`
Dec 11 07:00:27.467 INFO [stderr] usermod: no changes
Dec 11 07:00:27.508 INFO [stderr]     Checking text_adventure v0.1.0 (/source)
Dec 11 07:00:27.737 INFO [stderr] warning: method is never used: `to_string`
Dec 11 07:00:27.737 INFO [stderr]   --> src/main.rs:43:5
Dec 11 07:00:27.737 INFO [stderr]    |
Dec 11 07:00:27.737 INFO [stderr] 43 |     fn to_string(&self) -> &str {
Dec 11 07:00:27.737 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:00:27.737 INFO [stderr]    |
Dec 11 07:00:27.737 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 07:00:27.737 INFO [stderr] 
Dec 11 07:00:27.737 INFO [stderr] warning: variant is never constructed: `MoveUp`
Dec 11 07:00:27.737 INFO [stderr]   --> src/main.rs:58:5
Dec 11 07:00:27.737 INFO [stderr]    |
Dec 11 07:00:27.737 INFO [stderr] 58 |     MoveUp,
Dec 11 07:00:27.737 INFO [stderr]    |     ^^^^^^
Dec 11 07:00:27.737 INFO [stderr] 
Dec 11 07:00:27.737 INFO [stderr] warning: variant is never constructed: `MoveDown`
Dec 11 07:00:27.737 INFO [stderr]   --> src/main.rs:60:5
Dec 11 07:00:27.737 INFO [stderr]    |
Dec 11 07:00:27.737 INFO [stderr] 60 |     MoveDown,
Dec 11 07:00:27.737 INFO [stderr]    |     ^^^^^^^^
Dec 11 07:00:27.737 INFO [stderr] 
Dec 11 07:00:27.741 INFO [stderr] warning: method is never used: `to_string`
Dec 11 07:00:27.741 INFO [stderr]   --> src/main.rs:43:5
Dec 11 07:00:27.741 INFO [stderr]    |
Dec 11 07:00:27.741 INFO [stderr] 43 |     fn to_string(&self) -> &str {
Dec 11 07:00:27.741 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 07:00:27.741 INFO [stderr]    |
Dec 11 07:00:27.741 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 07:00:27.741 INFO [stderr] 
Dec 11 07:00:27.741 INFO [stderr] warning: variant is never constructed: `MoveUp`
Dec 11 07:00:27.741 INFO [stderr]   --> src/main.rs:58:5
Dec 11 07:00:27.741 INFO [stderr]    |
Dec 11 07:00:27.741 INFO [stderr] 58 |     MoveUp,
Dec 11 07:00:27.741 INFO [stderr]    |     ^^^^^^
Dec 11 07:00:27.741 INFO [stderr] 
Dec 11 07:00:27.741 INFO [stderr] warning: variant is never constructed: `MoveDown`
Dec 11 07:00:27.741 INFO [stderr]   --> src/main.rs:60:5
Dec 11 07:00:27.741 INFO [stderr]    |
Dec 11 07:00:27.741 INFO [stderr] 60 |     MoveDown,
Dec 11 07:00:27.741 INFO [stderr]    |     ^^^^^^^^
Dec 11 07:00:27.741 INFO [stderr] 
Dec 11 07:00:27.789 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.29s
Dec 11 07:00:27.796 INFO [stderr] su: No module specific data is present
Dec 11 07:00:28.106 INFO running `"docker" "inspect" "2addf945fdda6586d7f98d0f4ff171d21f639b681a383fb81335302db0bef82e"`
Dec 11 07:00:28.288 INFO running `"docker" "rm" "-f" "2addf945fdda6586d7f98d0f4ff171d21f639b681a383fb81335302db0bef82e"`
Dec 11 07:00:28.395 INFO [stdout] 2addf945fdda6586d7f98d0f4ff171d21f639b681a383fb81335302db0bef82e