Sep 04 21:33:26.786 INFO checking circular-0.2.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 21:33:26.786 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 21:33:26.786 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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=500" "-e" "CMD=cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 21:33:27.037 INFO blam! d5c383f6902c186b8b0e301035e0cad36e78647f31a7c525d7eb126fbdd113e1
Sep 04 21:33:27.040 INFO running `"docker" "start" "-a" "d5c383f6902c186b8b0e301035e0cad36e78647f31a7c525d7eb126fbdd113e1"`
Sep 04 21:33:27.975 INFO kablam!     Checking circular v0.2.0 (file:///source)
Sep 04 21:33:29.172 INFO kablam! warning: unused import: `std::str`
Sep 04 21:33:29.172 INFO kablam!    --> src/lib.rs:387:7
Sep 04 21:33:29.172 INFO kablam!     |
Sep 04 21:33:29.172 INFO kablam! 387 |   use std::str;
Sep 04 21:33:29.172 INFO kablam!     |       ^^^^^^^^
Sep 04 21:33:29.172 INFO kablam!     |
Sep 04 21:33:29.172 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 04 21:33:29.172 INFO kablam! 
Sep 04 21:33:29.803 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.85s
Sep 04 21:33:29.810 INFO kablam! su: No module specific data is present
Sep 04 21:33:30.374 INFO running `"docker" "rm" "-f" "d5c383f6902c186b8b0e301035e0cad36e78647f31a7c525d7eb126fbdd113e1"`
Sep 04 21:33:30.533 INFO blam! d5c383f6902c186b8b0e301035e0cad36e78647f31a7c525d7eb126fbdd113e1