Sep 14 18:28:31.549 INFO checking circular-0.2.0 against master#90d36fb5905bbe5004f5b465ea14b53d10dae260 for pr-53578-1
Sep 14 18:28:31.549 INFO running: cargo +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets
Sep 14 18:28:31.549 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-1/pr-53578-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53578-1/worker-1/master#90d36fb5905bbe5004f5b465ea14b53d10dae260:/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 +90d36fb5905bbe5004f5b465ea14b53d10dae260-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 14 18:28:31.688 INFO blam! 18c6493457041a15ac4e6ff7b657212f293681fb8b57ef487d1a7e03a06a9687
Sep 14 18:28:31.694 INFO running `"docker" "start" "-a" "18c6493457041a15ac4e6ff7b657212f293681fb8b57ef487d1a7e03a06a9687"`
Sep 14 18:28:32.577 INFO kablam! usermod: no changes
Sep 14 18:28:32.602 INFO kablam!     Checking circular v0.2.0 (file:///source)
Sep 14 18:28:32.886 INFO kablam! warning: unused import: `std::str`
Sep 14 18:28:32.886 INFO kablam!    --> src/lib.rs:387:7
Sep 14 18:28:32.886 INFO kablam!     |
Sep 14 18:28:32.886 INFO kablam! 387 |   use std::str;
Sep 14 18:28:32.886 INFO kablam!     |       ^^^^^^^^
Sep 14 18:28:32.886 INFO kablam!     |
Sep 14 18:28:32.886 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 14 18:28:32.886 INFO kablam! 
Sep 14 18:28:33.150 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.56s
Sep 14 18:28:33.152 INFO kablam! su: No module specific data is present
Sep 14 18:28:33.811 INFO running `"docker" "rm" "-f" "18c6493457041a15ac4e6ff7b657212f293681fb8b57ef487d1a7e03a06a9687"`
Sep 14 18:28:34.167 INFO blam! 18c6493457041a15ac4e6ff7b657212f293681fb8b57ef487d1a7e03a06a9687