Sep 10 11:18:13.388 INFO checking rowcol-0.3.3 against master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1 for pr-54090
Sep 10 11:18:13.388 INFO running: cargo +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets
Sep 10 11:18:13.388 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-54090/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54090/worker-0/master#f50b7758f4dc85dc1c5e38258adaa94213ac6ed1:/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 +f50b7758f4dc85dc1c5e38258adaa94213ac6ed1-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-m" "2G" "crater"`
Sep 10 11:18:13.631 INFO blam! f061aa9492970fad45b7d951a70aba3f2cb9b7b1b14df9397381c31eef6ba74d
Sep 10 11:18:13.634 INFO running `"docker" "start" "-a" "f061aa9492970fad45b7d951a70aba3f2cb9b7b1b14df9397381c31eef6ba74d"`
Sep 10 11:18:14.954 INFO kablam! usermod: no changes
Sep 10 11:18:15.046 INFO kablam!     Checking rowcol v0.3.3 (file:///source)
Sep 10 11:18:15.838 INFO kablam! warning: unused `#[macro_use]` import
Sep 10 11:18:15.838 INFO kablam!   --> src/lib.rs:41:1
Sep 10 11:18:15.838 INFO kablam!    |
Sep 10 11:18:15.838 INFO kablam! 41 | #[macro_use] extern crate approx;
Sep 10 11:18:15.838 INFO kablam!    | ^^^^^^^^^^^^
Sep 10 11:18:15.839 INFO kablam!    |
Sep 10 11:18:15.839 INFO kablam!    = note: #[warn(unused_imports)] on by default
Sep 10 11:18:15.839 INFO kablam! 
Sep 10 11:18:19.306 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 4.33s
Sep 10 11:18:19.310 INFO kablam! su: No module specific data is present
Sep 10 11:18:20.582 INFO running `"docker" "rm" "-f" "f061aa9492970fad45b7d951a70aba3f2cb9b7b1b14df9397381c31eef6ba74d"`
Sep 10 11:18:20.704 INFO blam! f061aa9492970fad45b7d951a70aba3f2cb9b7b1b14df9397381c31eef6ba74d