Sep 02 07:39:37.747 INFO checking message_verifier-1.1.0 against master#1114ab684fbad001c4e580326d8eb4d8c4e917d3 for pr-53851
Sep 02 07:39:37.747 INFO running: cargo +1114ab684fbad001c4e580326d8eb4d8c4e917d3-alt check --frozen --all --all-targets
Sep 02 07:39:37.747 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53851/master#1114ab684fbad001c4e580326d8eb4d8c4e917d3:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53851/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 02 07:39:37.925 INFO blam! 00bbe32ede8075da4d9f4dd54d8306edbd39629a32c2e1213cfbe9ec9e49360f
Sep 02 07:39:37.927 INFO running `"docker" "start" "-a" "00bbe32ede8075da4d9f4dd54d8306edbd39629a32c2e1213cfbe9ec9e49360f"`
Sep 02 07:39:38.822 INFO kablam!     Checking message_verifier v1.1.0 (file:///source)
Sep 02 07:39:39.748 INFO kablam! warning: unused import: `std::str`
Sep 02 07:39:39.748 INFO kablam!    --> src/lib.rs:409:9
Sep 02 07:39:39.748 INFO kablam!     |
Sep 02 07:39:39.748 INFO kablam! 409 |     use std::str;
Sep 02 07:39:39.748 INFO kablam!     |         ^^^^^^^^
Sep 02 07:39:39.748 INFO kablam!     |
Sep 02 07:39:39.748 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 02 07:39:39.748 INFO kablam! 
Sep 02 07:39:41.542 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.76s
Sep 02 07:39:41.549 INFO kablam! su: No module specific data is present
Sep 02 07:39:41.941 INFO running `"docker" "rm" "-f" "00bbe32ede8075da4d9f4dd54d8306edbd39629a32c2e1213cfbe9ec9e49360f"`
Sep 02 07:39:42.027 INFO blam! 00bbe32ede8075da4d9f4dd54d8306edbd39629a32c2e1213cfbe9ec9e49360f