Dec 11 16:40:55.630 INFO checking jakegornall/guessing_game against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 16:40:55.630 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 16:40:55.809 INFO [stdout] 77d1663a17635d6f267d3b655fd65b0a219c2e86382ae7a384414c0f66d47223
Dec 11 16:40:55.813 INFO running `"docker" "start" "-a" "77d1663a17635d6f267d3b655fd65b0a219c2e86382ae7a384414c0f66d47223"`
Dec 11 16:40:56.514 INFO [stderr] usermod: no changes
Dec 11 16:40:56.547 INFO [stderr]     Checking guessing_game v0.1.0 (/source)
Dec 11 16:40:56.891 INFO [stderr] warning: unused variable: `play_again`
Dec 11 16:40:56.891 INFO [stderr]   --> src/main.rs:27:13
Dec 11 16:40:56.891 INFO [stderr]    |
Dec 11 16:40:56.891 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 11 16:40:56.891 INFO [stderr]    |             ^^^^^^^^^^ help: consider using `_play_again` instead
Dec 11 16:40:56.891 INFO [stderr]    |
Dec 11 16:40:56.891 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:40:56.891 INFO [stderr] 
Dec 11 16:40:56.891 INFO [stderr] warning: value assigned to `result` is never read
Dec 11 16:40:56.891 INFO [stderr]   --> src/main.rs:28:13
Dec 11 16:40:56.891 INFO [stderr]    |
Dec 11 16:40:56.891 INFO [stderr] 28 |     let mut result = false;
Dec 11 16:40:56.891 INFO [stderr]    |             ^^^^^^
Dec 11 16:40:56.891 INFO [stderr]    |
Dec 11 16:40:56.891 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 16:40:56.891 INFO [stderr] 
Dec 11 16:40:56.891 INFO [stderr] warning: value assigned to `new_score` is never read
Dec 11 16:40:56.891 INFO [stderr]   --> src/main.rs:63:13
Dec 11 16:40:56.891 INFO [stderr]    |
Dec 11 16:40:56.891 INFO [stderr] 63 |     let mut new_score = 0;
Dec 11 16:40:56.891 INFO [stderr]    |             ^^^^^^^^^
Dec 11 16:40:56.891 INFO [stderr] 
Dec 11 16:40:56.903 INFO [stderr] warning: variable does not need to be mutable
Dec 11 16:40:56.903 INFO [stderr]   --> src/main.rs:27:9
Dec 11 16:40:56.903 INFO [stderr]    |
Dec 11 16:40:56.903 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 11 16:40:56.903 INFO [stderr]    |         ----^^^^^^^^^^
Dec 11 16:40:56.903 INFO [stderr]    |         |
Dec 11 16:40:56.903 INFO [stderr]    |         help: remove this `mut`
Dec 11 16:40:56.903 INFO [stderr]    |
Dec 11 16:40:56.903 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 16:40:56.903 INFO [stderr] 
Dec 11 16:40:56.940 INFO [stderr] warning: unused variable: `play_again`
Dec 11 16:40:56.940 INFO [stderr]   --> src/main.rs:27:13
Dec 11 16:40:56.940 INFO [stderr]    |
Dec 11 16:40:56.940 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 11 16:40:56.940 INFO [stderr]    |             ^^^^^^^^^^ help: consider using `_play_again` instead
Dec 11 16:40:56.940 INFO [stderr]    |
Dec 11 16:40:56.940 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 11 16:40:56.940 INFO [stderr] 
Dec 11 16:40:56.940 INFO [stderr] warning: value assigned to `result` is never read
Dec 11 16:40:56.940 INFO [stderr]   --> src/main.rs:28:13
Dec 11 16:40:56.940 INFO [stderr]    |
Dec 11 16:40:56.940 INFO [stderr] 28 |     let mut result = false;
Dec 11 16:40:56.940 INFO [stderr]    |             ^^^^^^
Dec 11 16:40:56.940 INFO [stderr]    |
Dec 11 16:40:56.940 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 11 16:40:56.940 INFO [stderr] 
Dec 11 16:40:56.940 INFO [stderr] warning: value assigned to `new_score` is never read
Dec 11 16:40:56.940 INFO [stderr]   --> src/main.rs:63:13
Dec 11 16:40:56.940 INFO [stderr]    |
Dec 11 16:40:56.940 INFO [stderr] 63 |     let mut new_score = 0;
Dec 11 16:40:56.940 INFO [stderr]    |             ^^^^^^^^^
Dec 11 16:40:56.940 INFO [stderr] 
Dec 11 16:40:56.957 INFO [stderr] warning: variable does not need to be mutable
Dec 11 16:40:56.957 INFO [stderr]   --> src/main.rs:27:9
Dec 11 16:40:56.957 INFO [stderr]    |
Dec 11 16:40:56.957 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 11 16:40:56.957 INFO [stderr]    |         ----^^^^^^^^^^
Dec 11 16:40:56.957 INFO [stderr]    |         |
Dec 11 16:40:56.957 INFO [stderr]    |         help: remove this `mut`
Dec 11 16:40:56.957 INFO [stderr]    |
Dec 11 16:40:56.957 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 11 16:40:56.957 INFO [stderr] 
Dec 11 16:40:56.986 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Dec 11 16:40:56.986 INFO [stderr] su: No module specific data is present
Dec 11 16:40:57.308 INFO running `"docker" "inspect" "77d1663a17635d6f267d3b655fd65b0a219c2e86382ae7a384414c0f66d47223"`
Dec 11 16:40:57.422 INFO running `"docker" "rm" "-f" "77d1663a17635d6f267d3b655fd65b0a219c2e86382ae7a384414c0f66d47223"`
Dec 11 16:40:57.526 INFO [stdout] 77d1663a17635d6f267d3b655fd65b0a219c2e86382ae7a384414c0f66d47223