Sep 19 22:23:17.732 INFO checking message_verifier-1.1.0 against master#ff6422d7a392acfc8af28994d65af2bbaecea4f6 for pr-54346
Sep 19 22:23:17.732 INFO running: cargo +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets
Sep 19 22:23:17.732 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-54346/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54346/worker-2/master#ff6422d7a392acfc8af28994d65af2bbaecea4f6:/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 +ff6422d7a392acfc8af28994d65af2bbaecea4f6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 19 22:23:17.886 INFO blam! 3cf86d7341cfd9a68dec3a87e71866d767450ef0aff85a9d777cc0354dc60724
Sep 19 22:23:17.888 INFO running `"docker" "start" "-a" "3cf86d7341cfd9a68dec3a87e71866d767450ef0aff85a9d777cc0354dc60724"`
Sep 19 22:23:18.825 INFO kablam! usermod: no changes
Sep 19 22:23:18.880 INFO kablam!     Checking message_verifier v1.1.0 (/source)
Sep 19 22:23:19.360 INFO kablam! warning: unused import: `std::str`
Sep 19 22:23:19.360 INFO kablam!    --> src/lib.rs:409:9
Sep 19 22:23:19.360 INFO kablam!     |
Sep 19 22:23:19.360 INFO kablam! 409 |     use std::str;
Sep 19 22:23:19.360 INFO kablam!     |         ^^^^^^^^
Sep 19 22:23:19.360 INFO kablam!     |
Sep 19 22:23:19.360 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 19 22:23:19.360 INFO kablam! 
Sep 19 22:23:20.284 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.44s
Sep 19 22:23:20.288 INFO kablam! su: No module specific data is present
Sep 19 22:23:20.960 INFO running `"docker" "rm" "-f" "3cf86d7341cfd9a68dec3a87e71866d767450ef0aff85a9d777cc0354dc60724"`
Sep 19 22:23:21.029 INFO blam! 3cf86d7341cfd9a68dec3a87e71866d767450ef0aff85a9d777cc0354dc60724