Sep 17 21:24:23.257 INFO checking message_verifier-1.1.0 against try#cfeeefe83c83bceb55d60d7e2be173db7597ed50 for pr-54033
Sep 17 21:24:23.257 INFO running: cargo +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets
Sep 17 21:24:23.257 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54033/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54033/worker-4/try#cfeeefe83c83bceb55d60d7e2be173db7597ed50:/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 +cfeeefe83c83bceb55d60d7e2be173db7597ed50-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 17 21:24:23.415 INFO blam! a6e7a44e7bcda491ae9ad0253289e2ff01dcbc5d14f7c231c36b82eedc7caa03
Sep 17 21:24:23.419 INFO running `"docker" "start" "-a" "a6e7a44e7bcda491ae9ad0253289e2ff01dcbc5d14f7c231c36b82eedc7caa03"`
Sep 17 21:24:24.134 INFO kablam! usermod: no changes
Sep 17 21:24:24.201 INFO kablam!     Checking message_verifier v1.1.0 (/source)
Sep 17 21:24:24.604 INFO kablam! warning: unused import: `std::str`
Sep 17 21:24:24.604 INFO kablam!    --> src/lib.rs:409:9
Sep 17 21:24:24.604 INFO kablam!     |
Sep 17 21:24:24.604 INFO kablam! 409 |     use std::str;
Sep 17 21:24:24.604 INFO kablam!     |         ^^^^^^^^
Sep 17 21:24:24.604 INFO kablam!     |
Sep 17 21:24:24.604 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 17 21:24:24.604 INFO kablam! 
Sep 17 21:24:25.475 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.31s
Sep 17 21:24:25.476 INFO kablam! su: No module specific data is present
Sep 17 21:24:26.227 INFO running `"docker" "rm" "-f" "a6e7a44e7bcda491ae9ad0253289e2ff01dcbc5d14f7c231c36b82eedc7caa03"`
Sep 17 21:24:26.318 INFO blam! a6e7a44e7bcda491ae9ad0253289e2ff01dcbc5d14f7c231c36b82eedc7caa03