Sep 04 11:03:06.852 INFO checking message_verifier-1.1.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 11:03:06.852 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 11:03:06.852 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-1/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 11:03:07.009 INFO blam! 7b6fb8528f386b4da5fc6936a530b7d61fde2f04a355f6c3b09bfa1fe39cc9d7
Sep 04 11:03:07.011 INFO running `"docker" "start" "-a" "7b6fb8528f386b4da5fc6936a530b7d61fde2f04a355f6c3b09bfa1fe39cc9d7"`
Sep 04 11:03:07.867 INFO kablam!     Checking message_verifier v1.1.0 (file:///source)
Sep 04 11:03:09.094 INFO kablam! warning: unused import: `std::str`
Sep 04 11:03:09.094 INFO kablam!    --> src/lib.rs:409:9
Sep 04 11:03:09.094 INFO kablam!     |
Sep 04 11:03:09.094 INFO kablam! 409 |     use std::str;
Sep 04 11:03:09.094 INFO kablam!     |         ^^^^^^^^
Sep 04 11:03:09.095 INFO kablam!     |
Sep 04 11:03:09.095 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 04 11:03:09.095 INFO kablam! 
Sep 04 11:03:11.631 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.82s
Sep 04 11:03:11.637 INFO kablam! su: No module specific data is present
Sep 04 11:03:12.194 INFO running `"docker" "rm" "-f" "7b6fb8528f386b4da5fc6936a530b7d61fde2f04a355f6c3b09bfa1fe39cc9d7"`
Sep 04 11:03:12.292 INFO blam! 7b6fb8528f386b4da5fc6936a530b7d61fde2f04a355f6c3b09bfa1fe39cc9d7