Sep 21 12:14:08.309 INFO checking circular-0.2.0 against try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6 for pr-54394
Sep 21 12:14:08.310 INFO running: cargo +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets
Sep 21 12:14:08.310 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-54394/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-54394/worker-3/try#f1a3f05968ed2a674e09b6efa4ad9df90816e2b6:/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 +f1a3f05968ed2a674e09b6efa4ad9df90816e2b6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "1536M" "crater"`
Sep 21 12:14:08.547 INFO blam! 6cf7f4c2c32fcf8274a519c7891dc10976f64ad0b796c4d5a986053014a299d4
Sep 21 12:14:08.549 INFO running `"docker" "start" "-a" "6cf7f4c2c32fcf8274a519c7891dc10976f64ad0b796c4d5a986053014a299d4"`
Sep 21 12:14:09.962 INFO kablam! usermod: no changes
Sep 21 12:14:10.010 INFO kablam!     Checking circular v0.2.0 (/source)
Sep 21 12:14:10.638 INFO kablam! warning: unused import: `std::str`
Sep 21 12:14:10.638 INFO kablam!    --> src/lib.rs:387:7
Sep 21 12:14:10.638 INFO kablam!     |
Sep 21 12:14:10.638 INFO kablam! 387 |   use std::str;
Sep 21 12:14:10.638 INFO kablam!     |       ^^^^^^^^
Sep 21 12:14:10.638 INFO kablam!     |
Sep 21 12:14:10.638 INFO kablam!     = note: #[warn(unused_imports)] on by default
Sep 21 12:14:10.638 INFO kablam! 
Sep 21 12:14:11.048 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
Sep 21 12:14:11.069 INFO kablam! su: No module specific data is present
Sep 21 12:14:12.155 INFO running `"docker" "rm" "-f" "6cf7f4c2c32fcf8274a519c7891dc10976f64ad0b796c4d5a986053014a299d4"`
Sep 21 12:14:12.282 INFO blam! 6cf7f4c2c32fcf8274a519c7891dc10976f64ad0b796c4d5a986053014a299d4