Sep 01 14:09:05.976 INFO checking message_verifier-1.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53831
Sep 01 14:09:05.976 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 01 14:09:05.976 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/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=500" "-e" "CMD=cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 14:09:06.121 INFO blam! bd91724cf5753e0cdc9336ea7de9457c87621d5029ef4694a151b7d5a55e0e01
Sep 01 14:09:06.123 INFO running `"docker" "start" "-a" "bd91724cf5753e0cdc9336ea7de9457c87621d5029ef4694a151b7d5a55e0e01"`
Sep 01 14:09:06.839 INFO kablam!     Checking message_verifier v1.1.0 (file:///source)
Sep 01 14:09:07.974 INFO kablam! warning: unused import: `std::str`
Sep 01 14:09:07.974 INFO kablam!    --> src/lib.rs:409:9
Sep 01 14:09:07.974 INFO kablam!     |
Sep 01 14:09:07.974 INFO kablam! 409 |     use std::str;
Sep 01 14:09:07.974 INFO kablam!     |         ^^^^^^^^
Sep 01 14:09:07.974 INFO kablam!     |
Sep 01 14:09:07.974 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 01 14:09:07.974 INFO kablam! 
Sep 01 14:09:10.318 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.55s
Sep 01 14:09:10.323 INFO kablam! su: No module specific data is present
Sep 01 14:09:10.803 INFO running `"docker" "rm" "-f" "bd91724cf5753e0cdc9336ea7de9457c87621d5029ef4694a151b7d5a55e0e01"`
Sep 01 14:09:10.934 INFO blam! bd91724cf5753e0cdc9336ea7de9457c87621d5029ef4694a151b7d5a55e0e01