Sep 21 07:05:15.822 INFO checking message_verifier-1.1.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 07:05:15.822 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 07:05:15.822 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-0/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 07:05:16.052 INFO blam! 7d64168888efb90393602b7860fe76a05e8cb1e38197b2d691bb67d45ee744a3
Sep 21 07:05:16.054 INFO running `"docker" "start" "-a" "7d64168888efb90393602b7860fe76a05e8cb1e38197b2d691bb67d45ee744a3"`
Sep 21 07:05:17.474 INFO kablam! usermod: no changes
Sep 21 07:05:17.630 INFO kablam!     Checking message_verifier v1.1.0 (/source)
Sep 21 07:05:18.292 INFO kablam! warning: unused import: `std::str`
Sep 21 07:05:18.292 INFO kablam!    --> src/lib.rs:409:9
Sep 21 07:05:18.292 INFO kablam!     |
Sep 21 07:05:18.292 INFO kablam! 409 |     use std::str;
Sep 21 07:05:18.292 INFO kablam!     |         ^^^^^^^^
Sep 21 07:05:18.292 INFO kablam!     |
Sep 21 07:05:18.292 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 21 07:05:18.292 INFO kablam! 
Sep 21 07:05:20.278 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
Sep 21 07:05:20.294 INFO kablam! su: No module specific data is present
Sep 21 07:05:21.567 INFO running `"docker" "rm" "-f" "7d64168888efb90393602b7860fe76a05e8cb1e38197b2d691bb67d45ee744a3"`
Sep 21 07:05:21.677 INFO blam! 7d64168888efb90393602b7860fe76a05e8cb1e38197b2d691bb67d45ee744a3