Sep 14 13:13:27.583 INFO checking message_verifier-1.1.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 13:13:27.583 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 13:13:27.583 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-0/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 13:13:27.774 INFO blam! b1b00bedcfb43717d330bd07b49fc296fd3d40fd450c249694ae08d3f7cfe955
Sep 14 13:13:27.780 INFO running `"docker" "start" "-a" "b1b00bedcfb43717d330bd07b49fc296fd3d40fd450c249694ae08d3f7cfe955"`
Sep 14 13:13:28.402 INFO kablam! usermod: no changes
Sep 14 13:13:28.461 INFO kablam!     Checking message_verifier v1.1.0 (file:///source)
Sep 14 13:13:29.011 INFO kablam! warning: unused import: `std::str`
Sep 14 13:13:29.011 INFO kablam!    --> src/lib.rs:409:9
Sep 14 13:13:29.011 INFO kablam!     |
Sep 14 13:13:29.011 INFO kablam! 409 |     use std::str;
Sep 14 13:13:29.011 INFO kablam!     |         ^^^^^^^^
Sep 14 13:13:29.011 INFO kablam!     |
Sep 14 13:13:29.011 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 14 13:13:29.011 INFO kablam! 
Sep 14 13:13:29.987 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
Sep 14 13:13:29.995 INFO kablam! su: No module specific data is present
Sep 14 13:13:30.637 INFO running `"docker" "rm" "-f" "b1b00bedcfb43717d330bd07b49fc296fd3d40fd450c249694ae08d3f7cfe955"`
Sep 14 13:13:30.708 INFO blam! b1b00bedcfb43717d330bd07b49fc296fd3d40fd450c249694ae08d3f7cfe955