Sep 14 13:13:27.558 INFO checking message_verifier-1.1.0 against try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0 for pr-53578-1
Sep 14 13:13:27.558 INFO running: cargo +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets
Sep 14 13:13:27.558 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-53578-1/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-4/try#87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0:/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 +87b8e7411c4f1267d0cac0d63fa9c21c943e2ea0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 13:13:27.729 INFO blam! 219f7677a31eef019d63061587dfa276e12214eff8401d270f3586c4254e0927
Sep 14 13:13:27.734 INFO running `"docker" "start" "-a" "219f7677a31eef019d63061587dfa276e12214eff8401d270f3586c4254e0927"`
Sep 14 13:13:28.663 INFO kablam! usermod: no changes
Sep 14 13:13:28.754 INFO kablam!     Checking error-chain v0.7.2
Sep 14 13:13:29.322 INFO kablam!     Checking message_verifier v1.1.0 (file:///source)
Sep 14 13:13:29.870 INFO kablam! warning: unused import: `std::str`
Sep 14 13:13:29.870 INFO kablam!    --> src/lib.rs:409:9
Sep 14 13:13:29.870 INFO kablam!     |
Sep 14 13:13:29.870 INFO kablam! 409 |     use std::str;
Sep 14 13:13:29.870 INFO kablam!     |         ^^^^^^^^
Sep 14 13:13:29.870 INFO kablam!     |
Sep 14 13:13:29.870 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 14 13:13:29.870 INFO kablam! 
Sep 14 13:13:30.576 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.89s
Sep 14 13:13:30.580 INFO kablam! su: No module specific data is present
Sep 14 13:13:31.185 INFO running `"docker" "rm" "-f" "219f7677a31eef019d63061587dfa276e12214eff8401d270f3586c4254e0927"`
Sep 14 13:13:31.287 INFO blam! 219f7677a31eef019d63061587dfa276e12214eff8401d270f3586c4254e0927