Dec 17 12:49:19.709 INFO checking underflowed/text-adventure-game-in-rust against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 12:49:19.709 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/underflowed/text-adventure-game-in-rust:/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 17 12:49:20.173 INFO [stdout] 758545bd4562ff4344847b0f0a5f7e7ea41c205b6b75cfe55596bd07e1999d66
Dec 17 12:49:20.173 INFO running `"docker" "start" "-a" "758545bd4562ff4344847b0f0a5f7e7ea41c205b6b75cfe55596bd07e1999d66"`
Dec 17 12:49:21.583 INFO [stderr]     Checking text_adventure v0.1.0 (/opt/crater/workdir)
Dec 17 12:49:21.804 INFO [stderr] warning: method is never used: `to_string`
Dec 17 12:49:21.804 INFO [stderr]   --> src/main.rs:43:5
Dec 17 12:49:21.804 INFO [stderr]    |
Dec 17 12:49:21.804 INFO [stderr] 43 |     fn to_string(&self) -> &str {
Dec 17 12:49:21.804 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:49:21.804 INFO [stderr]    |
Dec 17 12:49:21.804 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 12:49:21.804 INFO [stderr] 
Dec 17 12:49:21.804 INFO [stderr] warning: variant is never constructed: `MoveUp`
Dec 17 12:49:21.804 INFO [stderr]   --> src/main.rs:58:5
Dec 17 12:49:21.804 INFO [stderr]    |
Dec 17 12:49:21.804 INFO [stderr] 58 |     MoveUp,
Dec 17 12:49:21.804 INFO [stderr]    |     ^^^^^^
Dec 17 12:49:21.804 INFO [stderr] 
Dec 17 12:49:21.804 INFO [stderr] warning: variant is never constructed: `MoveDown`
Dec 17 12:49:21.804 INFO [stderr]   --> src/main.rs:60:5
Dec 17 12:49:21.804 INFO [stderr]    |
Dec 17 12:49:21.804 INFO [stderr] 60 |     MoveDown,
Dec 17 12:49:21.804 INFO [stderr]    |     ^^^^^^^^
Dec 17 12:49:21.804 INFO [stderr] 
Dec 17 12:49:21.956 INFO [stderr] warning: method is never used: `to_string`
Dec 17 12:49:21.956 INFO [stderr]   --> src/main.rs:43:5
Dec 17 12:49:21.956 INFO [stderr]    |
Dec 17 12:49:21.956 INFO [stderr] 43 |     fn to_string(&self) -> &str {
Dec 17 12:49:21.956 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 12:49:21.956 INFO [stderr]    |
Dec 17 12:49:21.956 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 17 12:49:21.956 INFO [stderr] 
Dec 17 12:49:21.956 INFO [stderr] warning: variant is never constructed: `MoveUp`
Dec 17 12:49:21.956 INFO [stderr]   --> src/main.rs:58:5
Dec 17 12:49:21.956 INFO [stderr]    |
Dec 17 12:49:21.956 INFO [stderr] 58 |     MoveUp,
Dec 17 12:49:21.956 INFO [stderr]    |     ^^^^^^
Dec 17 12:49:21.956 INFO [stderr] 
Dec 17 12:49:21.956 INFO [stderr] warning: variant is never constructed: `MoveDown`
Dec 17 12:49:21.956 INFO [stderr]   --> src/main.rs:60:5
Dec 17 12:49:21.956 INFO [stderr]    |
Dec 17 12:49:21.956 INFO [stderr] 60 |     MoveDown,
Dec 17 12:49:21.956 INFO [stderr]    |     ^^^^^^^^
Dec 17 12:49:21.956 INFO [stderr] 
Dec 17 12:49:22.012 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.47s
Dec 17 12:49:22.706 INFO running `"docker" "inspect" "758545bd4562ff4344847b0f0a5f7e7ea41c205b6b75cfe55596bd07e1999d66"`
Dec 17 12:49:22.934 INFO running `"docker" "rm" "-f" "758545bd4562ff4344847b0f0a5f7e7ea41c205b6b75cfe55596bd07e1999d66"`
Dec 17 12:49:23.192 INFO [stdout] 758545bd4562ff4344847b0f0a5f7e7ea41c205b6b75cfe55596bd07e1999d66