Sep 10 14:41:09.621 INFO checking message_verifier-1.1.0 against try#3a2610c2a16575649896925631bf8cec4f4b1961 for pr-54090
Sep 10 14:41:09.621 INFO running: cargo +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets
Sep 10 14:41:09.621 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54090/try#3a2610c2a16575649896925631bf8cec4f4b1961:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-5/try#3a2610c2a16575649896925631bf8cec4f4b1961:/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 +3a2610c2a16575649896925631bf8cec4f4b1961-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 14:41:09.837 INFO blam! 574b7aaf6434b86d4f32daf2d8745e2791400eb929b3fd5707e9ba82a4610474
Sep 10 14:41:09.839 INFO running `"docker" "start" "-a" "574b7aaf6434b86d4f32daf2d8745e2791400eb929b3fd5707e9ba82a4610474"`
Sep 10 14:41:10.524 INFO kablam! usermod: no changes
Sep 10 14:41:10.608 INFO kablam!     Checking message_verifier v1.1.0 (file:///source)
Sep 10 14:41:10.982 INFO kablam! warning: unused import: `std::str`
Sep 10 14:41:10.982 INFO kablam!    --> src/lib.rs:409:9
Sep 10 14:41:10.982 INFO kablam!     |
Sep 10 14:41:10.982 INFO kablam! 409 |     use std::str;
Sep 10 14:41:10.982 INFO kablam!     |         ^^^^^^^^
Sep 10 14:41:10.982 INFO kablam!     |
Sep 10 14:41:10.982 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 10 14:41:10.982 INFO kablam! 
Sep 10 14:41:11.837 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.30s
Sep 10 14:41:11.841 INFO kablam! su: No module specific data is present
Sep 10 14:41:12.430 INFO running `"docker" "rm" "-f" "574b7aaf6434b86d4f32daf2d8745e2791400eb929b3fd5707e9ba82a4610474"`
Sep 10 14:41:12.488 INFO blam! 574b7aaf6434b86d4f32daf2d8745e2791400eb929b3fd5707e9ba82a4610474