Sep 21 07:40:15.196 INFO checking libosu-0.0.7 against master#f7f4c500b46603386e940f116b469c7adc043a6d for pr-54394
Sep 21 07:40:15.196 INFO running: cargo +f7f4c500b46603386e940f116b469c7adc043a6d-alt check --frozen --all --all-targets
Sep 21 07:40:15.196 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-54394/master#f7f4c500b46603386e940f116b469c7adc043a6d:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-5/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 07:40:15.447 INFO blam! 3dc308b6dd2eb7de27f969830a4393947ab5fc1e6513d93a004329f63e6fec7e
Sep 21 07:40:15.449 INFO running `"docker" "start" "-a" "3dc308b6dd2eb7de27f969830a4393947ab5fc1e6513d93a004329f63e6fec7e"`
Sep 21 07:40:16.760 INFO kablam! usermod: no changes
Sep 21 07:40:16.978 INFO kablam!    Compiling num-rational v0.2.1
Sep 21 07:40:18.946 INFO kablam!     Checking libosu v0.0.7 (/source)
Sep 21 07:40:21.770 INFO kablam! warning: unused import: `Write`
Sep 21 07:40:21.770 INFO kablam!  --> tests/test_serde.rs:7:21
Sep 21 07:40:21.770 INFO kablam!   |
Sep 21 07:40:21.770 INFO kablam! 7 | use std::io::{Read, Write};
Sep 21 07:40:21.770 INFO kablam!   |                     ^^^^^
Sep 21 07:40:21.770 INFO kablam!   |
Sep 21 07:40:21.770 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 21 07:40:21.770 INFO kablam! 
Sep 21 07:40:21.852 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 5.06s
Sep 21 07:40:21.859 INFO kablam! su: No module specific data is present
Sep 21 07:40:22.806 INFO running `"docker" "rm" "-f" "3dc308b6dd2eb7de27f969830a4393947ab5fc1e6513d93a004329f63e6fec7e"`
Sep 21 07:40:22.917 INFO blam! 3dc308b6dd2eb7de27f969830a4393947ab5fc1e6513d93a004329f63e6fec7e