Dec 04 08:39:29.505 INFO checking thomwiggers/decoder against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 04 08:39:29.505 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-2/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-2/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 08:39:30.043 INFO [stdout] f2d22799a29ffb152604eb2f6909711f1a303bc98e721e02ecaa90c8a183544d
Dec 04 08:39:30.051 INFO running `"docker" "start" "-a" "f2d22799a29ffb152604eb2f6909711f1a303bc98e721e02ecaa90c8a183544d"`
Dec 04 08:39:31.331 INFO [stderr] usermod: no changes
Dec 04 08:39:31.447 INFO [stderr]     Checking zero_one v0.1.0 (/source/zero_one)
Dec 04 08:39:31.723 INFO [stderr]     Checking bit_vector v0.1.0 (/source/bit_vector)
Dec 04 08:39:32.327 INFO [stderr]     Checking matrix v0.1.0 (/source/matrix)
Dec 04 08:39:33.448 INFO [stderr]     Checking decoder v0.1.0 (/source)
Dec 04 08:39:34.479 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 04 08:39:34.479 INFO [stderr]    --> matrix/src/vector.rs:240:9
Dec 04 08:39:34.479 INFO [stderr]     |
Dec 04 08:39:34.479 INFO [stderr] 240 |         &Vector::from_vec(vec![0]) + &Vector::from_vec(vec![0, 1]);
Dec 04 08:39:34.479 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:39:34.479 INFO [stderr]     |
Dec 04 08:39:34.479 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 08:39:34.479 INFO [stderr] 
Dec 04 08:39:34.479 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 04 08:39:34.479 INFO [stderr]    --> matrix/src/vector.rs:246:9
Dec 04 08:39:34.479 INFO [stderr]     |
Dec 04 08:39:34.479 INFO [stderr] 246 |         &Vector::from_vec(vec![0]) - &Vector::from_vec(vec![0, 1]);
Dec 04 08:39:34.479 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 08:39:34.479 INFO [stderr] 
Dec 04 08:39:34.483 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 04 08:39:34.483 INFO [stderr]    --> matrix/src/matrix.rs:471:9
Dec 04 08:39:34.483 INFO [stderr]     |
Dec 04 08:39:34.483 INFO [stderr] 471 |         m1 + m2;
Dec 04 08:39:34.483 INFO [stderr]     |         ^^^^^^^
Dec 04 08:39:34.483 INFO [stderr] 
Dec 04 08:39:34.483 INFO [stderr] warning: unused arithmetic operation that must be used
Dec 04 08:39:34.483 INFO [stderr]    --> matrix/src/matrix.rs:479:9
Dec 04 08:39:34.483 INFO [stderr]     |
Dec 04 08:39:34.483 INFO [stderr] 479 |         m1 + m2;
Dec 04 08:39:34.483 INFO [stderr]     |         ^^^^^^^
Dec 04 08:39:34.483 INFO [stderr] 
Dec 04 08:39:34.514 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.14s
Dec 04 08:39:34.519 INFO [stderr] su: No module specific data is present
Dec 04 08:39:35.251 INFO running `"docker" "inspect" "f2d22799a29ffb152604eb2f6909711f1a303bc98e721e02ecaa90c8a183544d"`
Dec 04 08:39:35.432 INFO running `"docker" "rm" "-f" "f2d22799a29ffb152604eb2f6909711f1a303bc98e721e02ecaa90c8a183544d"`
Dec 04 08:39:35.669 INFO [stdout] f2d22799a29ffb152604eb2f6909711f1a303bc98e721e02ecaa90c8a183544d