Dec 04 16:56:21.004 INFO checking jakegornall/guessing_game against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 16:56:21.004 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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 04 16:56:21.246 INFO [stdout] 6cf93fb7dd1d16d67295667981264eb98ee8c5a5b241e3ddfd72be731f90dae6
Dec 04 16:56:21.259 INFO running `"docker" "start" "-a" "6cf93fb7dd1d16d67295667981264eb98ee8c5a5b241e3ddfd72be731f90dae6"`
Dec 04 16:56:21.843 INFO [stderr] usermod: no changes
Dec 04 16:56:21.888 INFO [stderr]     Checking guessing_game v0.1.0 (/source)
Dec 04 16:56:22.231 INFO [stderr] warning: unused variable: `play_again`
Dec 04 16:56:22.231 INFO [stderr]   --> src/main.rs:27:13
Dec 04 16:56:22.231 INFO [stderr]    |
Dec 04 16:56:22.232 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 04 16:56:22.232 INFO [stderr]    |             ^^^^^^^^^^ help: consider using `_play_again` instead
Dec 04 16:56:22.232 INFO [stderr]    |
Dec 04 16:56:22.232 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 16:56:22.232 INFO [stderr] 
Dec 04 16:56:22.232 INFO [stderr] warning: value assigned to `result` is never read
Dec 04 16:56:22.232 INFO [stderr]   --> src/main.rs:28:13
Dec 04 16:56:22.232 INFO [stderr]    |
Dec 04 16:56:22.232 INFO [stderr] 28 |     let mut result = false;
Dec 04 16:56:22.232 INFO [stderr]    |             ^^^^^^
Dec 04 16:56:22.232 INFO [stderr]    |
Dec 04 16:56:22.232 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 04 16:56:22.232 INFO [stderr] 
Dec 04 16:56:22.232 INFO [stderr] warning: value assigned to `new_score` is never read
Dec 04 16:56:22.232 INFO [stderr]   --> src/main.rs:63:13
Dec 04 16:56:22.232 INFO [stderr]    |
Dec 04 16:56:22.232 INFO [stderr] 63 |     let mut new_score = 0;
Dec 04 16:56:22.232 INFO [stderr]    |             ^^^^^^^^^
Dec 04 16:56:22.232 INFO [stderr] 
Dec 04 16:56:22.239 INFO [stderr] warning: variable does not need to be mutable
Dec 04 16:56:22.239 INFO [stderr]   --> src/main.rs:27:9
Dec 04 16:56:22.239 INFO [stderr]    |
Dec 04 16:56:22.239 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 04 16:56:22.239 INFO [stderr]    |         ----^^^^^^^^^^
Dec 04 16:56:22.239 INFO [stderr]    |         |
Dec 04 16:56:22.239 INFO [stderr]    |         help: remove this `mut`
Dec 04 16:56:22.239 INFO [stderr]    |
Dec 04 16:56:22.239 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 16:56:22.239 INFO [stderr] 
Dec 04 16:56:22.267 INFO [stderr] warning: unused variable: `play_again`
Dec 04 16:56:22.267 INFO [stderr]   --> src/main.rs:27:13
Dec 04 16:56:22.267 INFO [stderr]    |
Dec 04 16:56:22.267 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 04 16:56:22.267 INFO [stderr]    |             ^^^^^^^^^^ help: consider using `_play_again` instead
Dec 04 16:56:22.267 INFO [stderr]    |
Dec 04 16:56:22.267 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Dec 04 16:56:22.267 INFO [stderr] 
Dec 04 16:56:22.267 INFO [stderr] warning: value assigned to `result` is never read
Dec 04 16:56:22.267 INFO [stderr]   --> src/main.rs:28:13
Dec 04 16:56:22.267 INFO [stderr]    |
Dec 04 16:56:22.267 INFO [stderr] 28 |     let mut result = false;
Dec 04 16:56:22.267 INFO [stderr]    |             ^^^^^^
Dec 04 16:56:22.267 INFO [stderr]    |
Dec 04 16:56:22.267 INFO [stderr]    = note: #[warn(unused_assignments)] on by default
Dec 04 16:56:22.267 INFO [stderr] 
Dec 04 16:56:22.267 INFO [stderr] warning: value assigned to `new_score` is never read
Dec 04 16:56:22.267 INFO [stderr]   --> src/main.rs:63:13
Dec 04 16:56:22.267 INFO [stderr]    |
Dec 04 16:56:22.267 INFO [stderr] 63 |     let mut new_score = 0;
Dec 04 16:56:22.267 INFO [stderr]    |             ^^^^^^^^^
Dec 04 16:56:22.267 INFO [stderr] 
Dec 04 16:56:22.276 INFO [stderr] warning: variable does not need to be mutable
Dec 04 16:56:22.276 INFO [stderr]   --> src/main.rs:27:9
Dec 04 16:56:22.276 INFO [stderr]    |
Dec 04 16:56:22.276 INFO [stderr] 27 |     let mut play_again = String::new();
Dec 04 16:56:22.276 INFO [stderr]    |         ----^^^^^^^^^^
Dec 04 16:56:22.276 INFO [stderr]    |         |
Dec 04 16:56:22.276 INFO [stderr]    |         help: remove this `mut`
Dec 04 16:56:22.276 INFO [stderr]    |
Dec 04 16:56:22.276 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 16:56:22.276 INFO [stderr] 
Dec 04 16:56:22.297 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.42s
Dec 04 16:56:22.303 INFO [stderr] su: No module specific data is present
Dec 04 16:56:22.699 INFO running `"docker" "inspect" "6cf93fb7dd1d16d67295667981264eb98ee8c5a5b241e3ddfd72be731f90dae6"`
Dec 04 16:56:22.951 INFO running `"docker" "rm" "-f" "6cf93fb7dd1d16d67295667981264eb98ee8c5a5b241e3ddfd72be731f90dae6"`
Dec 04 16:56:23.259 INFO [stdout] 6cf93fb7dd1d16d67295667981264eb98ee8c5a5b241e3ddfd72be731f90dae6