Sep 06 08:48:37.253 INFO checking circular-0.2.0 against master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6 for pr-53854
Sep 06 08:48:37.253 INFO running: cargo +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets
Sep 06 08:48:37.253 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-5/pr-53854/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53854/worker-5/master#1c2e17f4e3a2070a7f703f51e29c1c388ef703b6:/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 +1c2e17f4e3a2070a7f703f51e29c1c388ef703b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 06 08:48:37.469 INFO blam! 7c0f2bfea85b060955f5e7f7bb7b28a1679556bec34c40f1369241b8d767a49a
Sep 06 08:48:37.470 INFO running `"docker" "start" "-a" "7c0f2bfea85b060955f5e7f7bb7b28a1679556bec34c40f1369241b8d767a49a"`
Sep 06 08:48:38.330 INFO kablam! usermod: no changes
Sep 06 08:48:38.357 INFO kablam!     Checking circular v0.2.0 (file:///source)
Sep 06 08:48:38.834 INFO kablam! warning: unused import: `std::str`
Sep 06 08:48:38.834 INFO kablam!    --> src/lib.rs:387:7
Sep 06 08:48:38.834 INFO kablam!     |
Sep 06 08:48:38.834 INFO kablam! 387 |   use std::str;
Sep 06 08:48:38.834 INFO kablam!     |       ^^^^^^^^
Sep 06 08:48:38.834 INFO kablam!     |
Sep 06 08:48:38.838 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 06 08:48:38.838 INFO kablam! 
Sep 06 08:48:39.104 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
Sep 06 08:48:39.110 INFO kablam! su: No module specific data is present
Sep 06 08:48:40.048 INFO running `"docker" "rm" "-f" "7c0f2bfea85b060955f5e7f7bb7b28a1679556bec34c40f1369241b8d767a49a"`
Sep 06 08:48:40.166 INFO blam! 7c0f2bfea85b060955f5e7f7bb7b28a1679556bec34c40f1369241b8d767a49a