Nov 07 12:20:47.033 INFO checking matrixnum-0.1.0 against master#24e66c28980442a48d9458f1a4f9b76cc722dc8a for pr-55687
Nov 07 12:20:47.034 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55687/worker-7/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-55687/master#24e66c28980442a48d9458f1a4f9b76cc722dc8a:/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 +24e66c28980442a48d9458f1a4f9b76cc722dc8a-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"`
Nov 07 12:20:47.460 INFO blam! a2036dde084d271323519ca6dc38959f81bbb9efaaef8f5344a5e2261b527f45
Nov 07 12:20:47.462 INFO running `"docker" "start" "-a" "a2036dde084d271323519ca6dc38959f81bbb9efaaef8f5344a5e2261b527f45"`
Nov 07 12:20:48.613 INFO kablam! usermod: no changes
Nov 07 12:20:48.660 INFO kablam!     Checking matrixnum v0.1.0 (/source)
Nov 07 12:20:49.236 INFO kablam! warning: unused `#[macro_use]` import
Nov 07 12:20:49.237 INFO kablam!  --> src/lib.rs:1:1
Nov 07 12:20:49.237 INFO kablam!   |
Nov 07 12:20:49.237 INFO kablam! 1 | #[macro_use]
Nov 07 12:20:49.237 INFO kablam!   | ^^^^^^^^^^^^
Nov 07 12:20:49.237 INFO kablam!   |
Nov 07 12:20:49.237 INFO kablam!   = note: #[warn(unused_imports)] on by default
Nov 07 12:20:49.237 INFO kablam! 
Nov 07 12:20:49.528 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.89s
Nov 07 12:20:49.528 INFO kablam! su: No module specific data is present
Nov 07 12:20:49.797 INFO running `"docker" "rm" "-f" "a2036dde084d271323519ca6dc38959f81bbb9efaaef8f5344a5e2261b527f45"`
Nov 07 12:20:49.915 INFO blam! a2036dde084d271323519ca6dc38959f81bbb9efaaef8f5344a5e2261b527f45