Dec 04 10:31:06.467 INFO checking seeba8/rustsweeper against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 10:31:06.467 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-6/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/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 +1df97983eb2057dc6a8f7eb364e263b51ae23230-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 10:31:06.617 INFO [stdout] 5b807cb2f026ba43ea082c9173a13cf44002cf42f2dbc1885a509934df27e0ed
Dec 04 10:31:06.619 INFO running `"docker" "start" "-a" "5b807cb2f026ba43ea082c9173a13cf44002cf42f2dbc1885a509934df27e0ed"`
Dec 04 10:31:07.011 INFO [stderr] usermod: no changes
Dec 04 10:31:07.047 INFO [stderr]     Checking rand v0.3.22
Dec 04 10:31:07.259 INFO [stderr]     Checking rustsweeper v0.1.0 (/source)
Dec 04 10:31:07.435 INFO [stderr] warning: unused import: `std::fmt`
Dec 04 10:31:07.435 INFO [stderr]  --> src/main.rs:4:5
Dec 04 10:31:07.435 INFO [stderr]   |
Dec 04 10:31:07.435 INFO [stderr] 4 | use std::fmt;
Dec 04 10:31:07.435 INFO [stderr]   |     ^^^^^^^^
Dec 04 10:31:07.435 INFO [stderr]   |
Dec 04 10:31:07.435 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 10:31:07.435 INFO [stderr] 
Dec 04 10:31:07.463 INFO [stderr] warning: unused import: `std::fmt`
Dec 04 10:31:07.463 INFO [stderr]  --> src/main.rs:4:5
Dec 04 10:31:07.463 INFO [stderr]   |
Dec 04 10:31:07.463 INFO [stderr] 4 | use std::fmt;
Dec 04 10:31:07.463 INFO [stderr]   |     ^^^^^^^^
Dec 04 10:31:07.463 INFO [stderr]   |
Dec 04 10:31:07.463 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 10:31:07.463 INFO [stderr] 
Dec 04 10:31:07.535 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:31:07.535 INFO [stderr]   --> src/main.rs:61:13
Dec 04 10:31:07.535 INFO [stderr]    |
Dec 04 10:31:07.535 INFO [stderr] 61 |         let mut state = [[FieldState::None; 9]; 9];
Dec 04 10:31:07.535 INFO [stderr]    |             ----^^^^^
Dec 04 10:31:07.535 INFO [stderr]    |             |
Dec 04 10:31:07.535 INFO [stderr]    |             help: remove this `mut`
Dec 04 10:31:07.535 INFO [stderr]    |
Dec 04 10:31:07.535 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 10:31:07.535 INFO [stderr] 
Dec 04 10:31:07.571 INFO [stderr] warning: variable does not need to be mutable
Dec 04 10:31:07.571 INFO [stderr]   --> src/main.rs:61:13
Dec 04 10:31:07.571 INFO [stderr]    |
Dec 04 10:31:07.571 INFO [stderr] 61 |         let mut state = [[FieldState::None; 9]; 9];
Dec 04 10:31:07.571 INFO [stderr]    |             ----^^^^^
Dec 04 10:31:07.571 INFO [stderr]    |             |
Dec 04 10:31:07.571 INFO [stderr]    |             help: remove this `mut`
Dec 04 10:31:07.571 INFO [stderr]    |
Dec 04 10:31:07.571 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 04 10:31:07.571 INFO [stderr] 
Dec 04 10:31:07.596 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Dec 04 10:31:07.596 INFO [stderr] su: No module specific data is present
Dec 04 10:31:08.116 INFO running `"docker" "inspect" "5b807cb2f026ba43ea082c9173a13cf44002cf42f2dbc1885a509934df27e0ed"`
Dec 04 10:31:08.469 INFO running `"docker" "rm" "-f" "5b807cb2f026ba43ea082c9173a13cf44002cf42f2dbc1885a509934df27e0ed"`
Dec 04 10:31:08.803 INFO [stdout] 5b807cb2f026ba43ea082c9173a13cf44002cf42f2dbc1885a509934df27e0ed