Sep 06 03:12:45.894 INFO checking nqueens-0.1.2 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 03:12:45.894 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 03:12:45.894 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-2/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "CMD=cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 03:12:46.066 INFO blam! 331ec332a4caf1ab5b1387b3bb3743564521360304fd1703c26a270148e929d2
Sep 06 03:12:46.066 INFO running `"docker" "start" "-a" "331ec332a4caf1ab5b1387b3bb3743564521360304fd1703c26a270148e929d2"`
Sep 06 03:12:47.094 INFO kablam! usermod: no changes
Sep 06 03:12:47.250 INFO kablam!     Checking pretty_assertions v0.3.4
Sep 06 03:12:47.250 INFO kablam!     Checking nqueens v0.1.2 (file:///source)
Sep 06 03:12:48.146 INFO kablam! warning: unused `#[macro_use]` import
Sep 06 03:12:48.146 INFO kablam!  --> src/lib.rs:2:1
Sep 06 03:12:48.146 INFO kablam!   |
Sep 06 03:12:48.146 INFO kablam! 2 | #[macro_use]
Sep 06 03:12:48.146 INFO kablam!   | ^^^^^^^^^^^^
Sep 06 03:12:48.146 INFO kablam!   |
Sep 06 03:12:48.146 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 06 03:12:48.146 INFO kablam! 
Sep 06 03:12:48.568 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Sep 06 03:12:48.574 INFO kablam! su: No module specific data is present
Sep 06 03:12:49.166 INFO running `"docker" "rm" "-f" "331ec332a4caf1ab5b1387b3bb3743564521360304fd1703c26a270148e929d2"`
Sep 06 03:12:49.254 INFO blam! 331ec332a4caf1ab5b1387b3bb3743564521360304fd1703c26a270148e929d2