Sep 20 04:46:54.094 INFO checking currency-0.4.0 against master#1e21c9a297a9fe668d62887a3a6a4add8e717b17 for pr-54352
Sep 20 04:46:54.094 INFO running: cargo +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets
Sep 20 04:46:54.094 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-4/pr-54352/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54352/worker-4/master#1e21c9a297a9fe668d62887a3a6a4add8e717b17:/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 +1e21c9a297a9fe668d62887a3a6a4add8e717b17-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 20 04:46:54.303 INFO blam! 76aade6fac69d890b824967bbafa7e5db68bfe13bcd24ccdf6265f6be268ba37
Sep 20 04:46:54.305 INFO running `"docker" "start" "-a" "76aade6fac69d890b824967bbafa7e5db68bfe13bcd24ccdf6265f6be268ba37"`
Sep 20 04:46:56.131 INFO kablam! usermod: no changes
Sep 20 04:46:56.254 INFO kablam!     Checking currency v0.4.0 (/source)
Sep 20 04:46:57.492 INFO kablam! warning: unused import: `std::str::FromStr`
Sep 20 04:46:57.492 INFO kablam!    --> src/lib.rs:752:13
Sep 20 04:46:57.492 INFO kablam!     |
Sep 20 04:46:57.492 INFO kablam! 752 |         use std::str::FromStr;
Sep 20 04:46:57.492 INFO kablam!     |             ^^^^^^^^^^^^^^^^^
Sep 20 04:46:57.492 INFO kablam!     |
Sep 20 04:46:57.492 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 20 04:46:57.492 INFO kablam! 
Sep 20 04:46:57.679 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.52s
Sep 20 04:46:57.681 INFO kablam! su: No module specific data is present
Sep 20 04:46:59.513 INFO running `"docker" "rm" "-f" "76aade6fac69d890b824967bbafa7e5db68bfe13bcd24ccdf6265f6be268ba37"`
Sep 20 04:46:59.588 INFO blam! 76aade6fac69d890b824967bbafa7e5db68bfe13bcd24ccdf6265f6be268ba37