Dec 17 22:36:56.128 INFO checking jakegornall/guessing_game against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 17 22:36:56.128 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/jakegornall/guessing_game:/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 22:36:56.372 INFO [stdout] 1a84d6c7785ca8faf196f41265f4edf3000b454692170ae354fa554056225689
Dec 17 22:36:56.374 INFO running `"docker" "start" "-a" "1a84d6c7785ca8faf196f41265f4edf3000b454692170ae354fa554056225689"`
Dec 17 22:36:57.171 INFO [stderr]     Checking guessing_game v0.1.0 (/opt/crater/workdir)
Dec 17 22:36:57.482 INFO [stderr] warning: unused variable: `play_again`
Dec 17 22:36:57.482 INFO [stderr]   --> src/main.rs:27:13
Dec 17 22:36:57.482 INFO [stderr]    |
Dec 17 22:36:57.482 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 17 22:36:57.482 INFO [stderr]    |             ^^^^^^^^^^ help: consider using `_play_again` instead
Dec 17 22:36:57.482 INFO [stderr]    |
Dec 17 22:36:57.482 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:36:57.482 INFO [stderr] 
Dec 17 22:36:57.482 INFO [stderr] warning: value assigned to `result` is never read
Dec 17 22:36:57.482 INFO [stderr]   --> src/main.rs:28:13
Dec 17 22:36:57.482 INFO [stderr]    |
Dec 17 22:36:57.482 INFO [stderr] 28 |     let mut result = false;
Dec 17 22:36:57.482 INFO [stderr]    |             ^^^^^^
Dec 17 22:36:57.482 INFO [stderr]    |
Dec 17 22:36:57.482 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 17 22:36:57.482 INFO [stderr] 
Dec 17 22:36:57.482 INFO [stderr] warning: value assigned to `new_score` is never read
Dec 17 22:36:57.482 INFO [stderr]   --> src/main.rs:63:13
Dec 17 22:36:57.482 INFO [stderr]    |
Dec 17 22:36:57.482 INFO [stderr] 63 |     let mut new_score = 0;
Dec 17 22:36:57.482 INFO [stderr]    |             ^^^^^^^^^
Dec 17 22:36:57.482 INFO [stderr] 
Dec 17 22:36:57.496 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:36:57.496 INFO [stderr]   --> src/main.rs:27:9
Dec 17 22:36:57.496 INFO [stderr]    |
Dec 17 22:36:57.496 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 17 22:36:57.496 INFO [stderr]    |         ----^^^^^^^^^^
Dec 17 22:36:57.496 INFO [stderr]    |         |
Dec 17 22:36:57.496 INFO [stderr]    |         help: remove this `mut`
Dec 17 22:36:57.496 INFO [stderr]    |
Dec 17 22:36:57.496 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 22:36:57.497 INFO [stderr] 
Dec 17 22:36:57.503 INFO [stderr] warning: unused variable: `play_again`
Dec 17 22:36:57.503 INFO [stderr]   --> src/main.rs:27:13
Dec 17 22:36:57.503 INFO [stderr]    |
Dec 17 22:36:57.503 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 17 22:36:57.503 INFO [stderr]    |             ^^^^^^^^^^ help: consider using `_play_again` instead
Dec 17 22:36:57.503 INFO [stderr]    |
Dec 17 22:36:57.503 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 17 22:36:57.503 INFO [stderr] 
Dec 17 22:36:57.503 INFO [stderr] warning: value assigned to `result` is never read
Dec 17 22:36:57.503 INFO [stderr]   --> src/main.rs:28:13
Dec 17 22:36:57.504 INFO [stderr]    |
Dec 17 22:36:57.504 INFO [stderr] 28 |     let mut result = false;
Dec 17 22:36:57.504 INFO [stderr]    |             ^^^^^^
Dec 17 22:36:57.504 INFO [stderr]    |
Dec 17 22:36:57.505 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 17 22:36:57.505 INFO [stderr] 
Dec 17 22:36:57.505 INFO [stderr] warning: value assigned to `new_score` is never read
Dec 17 22:36:57.505 INFO [stderr]   --> src/main.rs:63:13
Dec 17 22:36:57.505 INFO [stderr]    |
Dec 17 22:36:57.506 INFO [stderr] 63 |     let mut new_score = 0;
Dec 17 22:36:57.506 INFO [stderr]    |             ^^^^^^^^^
Dec 17 22:36:57.506 INFO [stderr] 
Dec 17 22:36:57.515 INFO [stderr] warning: variable does not need to be mutable
Dec 17 22:36:57.515 INFO [stderr]   --> src/main.rs:27:9
Dec 17 22:36:57.515 INFO [stderr]    |
Dec 17 22:36:57.515 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 17 22:36:57.515 INFO [stderr]    |         ----^^^^^^^^^^
Dec 17 22:36:57.516 INFO [stderr]    |         |
Dec 17 22:36:57.516 INFO [stderr]    |         help: remove this `mut`
Dec 17 22:36:57.516 INFO [stderr]    |
Dec 17 22:36:57.516 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 22:36:57.516 INFO [stderr] 
Dec 17 22:36:57.553 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.40s
Dec 17 22:36:58.048 INFO running `"docker" "inspect" "1a84d6c7785ca8faf196f41265f4edf3000b454692170ae354fa554056225689"`
Dec 17 22:36:58.162 INFO running `"docker" "rm" "-f" "1a84d6c7785ca8faf196f41265f4edf3000b454692170ae354fa554056225689"`
Dec 17 22:36:58.299 INFO [stdout] 1a84d6c7785ca8faf196f41265f4edf3000b454692170ae354fa554056225689