Sep 21 11:37:31.382 INFO checking currency-0.4.0 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 11:37:31.382 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 11:37:31.382 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-4/master#f7f4c500b46603386e940f116b469c7adc043a6d:/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 +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 11:37:31.563 INFO blam! d60d01a723527fa74329a86feab50d8f9aa7189b94c23840920ca0f2f8d3f3c2
Sep 21 11:37:31.565 INFO running `"docker" "start" "-a" "d60d01a723527fa74329a86feab50d8f9aa7189b94c23840920ca0f2f8d3f3c2"`
Sep 21 11:37:32.532 INFO kablam! usermod: no changes
Sep 21 11:37:32.603 INFO kablam!     Checking currency v0.4.0 (/source)
Sep 21 11:37:33.846 INFO kablam! warning: unused import: `std::str::FromStr`
Sep 21 11:37:33.846 INFO kablam!    --> src/lib.rs:752:13
Sep 21 11:37:33.846 INFO kablam!     |
Sep 21 11:37:33.846 INFO kablam! 752 |         use std::str::FromStr;
Sep 21 11:37:33.846 INFO kablam!     |             ^^^^^^^^^^^^^^^^^
Sep 21 11:37:33.846 INFO kablam!     |
Sep 21 11:37:33.846 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 21 11:37:33.846 INFO kablam! 
Sep 21 11:37:34.090 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.54s
Sep 21 11:37:34.093 INFO kablam! su: No module specific data is present
Sep 21 11:37:34.845 INFO running `"docker" "rm" "-f" "d60d01a723527fa74329a86feab50d8f9aa7189b94c23840920ca0f2f8d3f3c2"`
Sep 21 11:37:34.925 INFO blam! d60d01a723527fa74329a86feab50d8f9aa7189b94c23840920ca0f2f8d3f3c2