Oct 12 12:16:23.166 INFO checking thomwiggers/decoder against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 12:16:23.166 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-2/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-2/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 12 12:16:23.678 INFO blam! b70c73bfa12f74ff93915a73ad5061da7ff118587bbb43bcc7ca3394e007b186
Oct 12 12:16:23.679 INFO running `"docker" "start" "-a" "b70c73bfa12f74ff93915a73ad5061da7ff118587bbb43bcc7ca3394e007b186"`
Oct 12 12:16:25.157 INFO kablam! usermod: no changes
Oct 12 12:16:25.292 INFO kablam!     Checking zero_one v0.1.0 (/source/zero_one)
Oct 12 12:16:25.784 INFO kablam!     Checking bit_vector v0.1.0 (/source/bit_vector)
Oct 12 12:16:26.392 INFO kablam!     Checking matrix v0.1.0 (/source/matrix)
Oct 12 12:16:27.429 INFO kablam!     Checking decoder v0.1.0 (/source)
Oct 12 12:16:28.733 INFO kablam! warning: unused arithmetic operation which must be used
Oct 12 12:16:28.733 INFO kablam!    --> matrix/src/vector.rs:240:9
Oct 12 12:16:28.733 INFO kablam!     |
Oct 12 12:16:28.733 INFO kablam! 240 |         &Vector::from_vec(vec![0]) + &Vector::from_vec(vec![0, 1]);
Oct 12 12:16:28.733 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:16:28.733 INFO kablam!     |
Oct 12 12:16:28.733 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 12 12:16:28.733 INFO kablam! 
Oct 12 12:16:28.733 INFO kablam! warning: unused arithmetic operation which must be used
Oct 12 12:16:28.733 INFO kablam!    --> matrix/src/vector.rs:246:9
Oct 12 12:16:28.733 INFO kablam!     |
Oct 12 12:16:28.733 INFO kablam! 246 |         &Vector::from_vec(vec![0]) - &Vector::from_vec(vec![0, 1]);
Oct 12 12:16:28.733 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:16:28.733 INFO kablam! 
Oct 12 12:16:28.749 INFO kablam! warning: unused arithmetic operation which must be used
Oct 12 12:16:28.749 INFO kablam!    --> matrix/src/matrix.rs:471:9
Oct 12 12:16:28.749 INFO kablam!     |
Oct 12 12:16:28.749 INFO kablam! 471 |         m1 + m2;
Oct 12 12:16:28.749 INFO kablam!     |         ^^^^^^^
Oct 12 12:16:28.749 INFO kablam! 
Oct 12 12:16:28.749 INFO kablam! warning: unused arithmetic operation which must be used
Oct 12 12:16:28.749 INFO kablam!    --> matrix/src/matrix.rs:479:9
Oct 12 12:16:28.749 INFO kablam!     |
Oct 12 12:16:28.749 INFO kablam! 479 |         m1 + m2;
Oct 12 12:16:28.749 INFO kablam!     |         ^^^^^^^
Oct 12 12:16:28.749 INFO kablam! 
Oct 12 12:16:28.797 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.60s
Oct 12 12:16:28.802 INFO kablam! su: No module specific data is present
Oct 12 12:16:30.343 INFO running `"docker" "rm" "-f" "b70c73bfa12f74ff93915a73ad5061da7ff118587bbb43bcc7ca3394e007b186"`
Oct 12 12:16:30.632 INFO blam! b70c73bfa12f74ff93915a73ad5061da7ff118587bbb43bcc7ca3394e007b186