Dec 04 07:27:01.532 INFO checking vti/rust-test against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 07:27:01.532 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-4/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/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 07:27:02.063 INFO [stdout] f0e03974ec7f980f157e603f7c6bab517f74533b0708bbb77693f95390340f58
Dec 04 07:27:02.065 INFO running `"docker" "start" "-a" "f0e03974ec7f980f157e603f7c6bab517f74533b0708bbb77693f95390340f58"`
Dec 04 07:27:03.735 INFO [stderr] usermod: no changes
Dec 04 07:27:03.779 INFO [stderr]     Checking rust-test v0.1.0 (/source)
Dec 04 07:27:04.047 INFO [stderr] warning: value assigned to `a` is never read
Dec 04 07:27:04.047 INFO [stderr]  --> src/main.rs:7:5
Dec 04 07:27:04.047 INFO [stderr]   |
Dec 04 07:27:04.047 INFO [stderr] 7 |     a = a + b;
Dec 04 07:27:04.047 INFO [stderr]   |     ^
Dec 04 07:27:04.047 INFO [stderr]   |
Dec 04 07:27:04.047 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 04 07:27:04.047 INFO [stderr] 
Dec 04 07:27:04.047 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:27:04.047 INFO [stderr]  --> src/main.rs:5:9
Dec 04 07:27:04.047 INFO [stderr]   |
Dec 04 07:27:04.047 INFO [stderr] 5 |     let mut b = 0;
Dec 04 07:27:04.047 INFO [stderr]   |         ----^
Dec 04 07:27:04.047 INFO [stderr]   |         |
Dec 04 07:27:04.047 INFO [stderr]   |         help: remove this `mut`
Dec 04 07:27:04.047 INFO [stderr]   |
Dec 04 07:27:04.047 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 04 07:27:04.047 INFO [stderr] 
Dec 04 07:27:04.087 INFO [stderr] warning: value assigned to `a` is never read
Dec 04 07:27:04.087 INFO [stderr]  --> src/main.rs:7:5
Dec 04 07:27:04.087 INFO [stderr]   |
Dec 04 07:27:04.087 INFO [stderr] 7 |     a = a + b;
Dec 04 07:27:04.087 INFO [stderr]   |     ^
Dec 04 07:27:04.087 INFO [stderr]   |
Dec 04 07:27:04.087 INFO [stderr]   = note: #[warn(unused_assignments)] on by default
Dec 04 07:27:04.087 INFO [stderr] 
Dec 04 07:27:04.087 INFO [stderr] warning: variable does not need to be mutable
Dec 04 07:27:04.087 INFO [stderr]  --> src/main.rs:5:9
Dec 04 07:27:04.087 INFO [stderr]   |
Dec 04 07:27:04.087 INFO [stderr] 5 |     let mut b = 0;
Dec 04 07:27:04.087 INFO [stderr]   |         ----^
Dec 04 07:27:04.087 INFO [stderr]   |         |
Dec 04 07:27:04.087 INFO [stderr]   |         help: remove this `mut`
Dec 04 07:27:04.087 INFO [stderr]   |
Dec 04 07:27:04.087 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Dec 04 07:27:04.087 INFO [stderr] 
Dec 04 07:27:04.088 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
Dec 04 07:27:04.090 INFO [stderr] su: No module specific data is present
Dec 04 07:27:04.484 INFO running `"docker" "inspect" "f0e03974ec7f980f157e603f7c6bab517f74533b0708bbb77693f95390340f58"`
Dec 04 07:27:04.699 INFO running `"docker" "rm" "-f" "f0e03974ec7f980f157e603f7c6bab517f74533b0708bbb77693f95390340f58"`
Dec 04 07:27:04.899 INFO [stdout] f0e03974ec7f980f157e603f7c6bab517f74533b0708bbb77693f95390340f58