Sep 04 00:29:08.730 INFO checking tk-bufstream-0.3.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 00:29:08.730 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 00:29:08.730 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-2/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 00:29:08.930 INFO blam! c39d36fdcaa75f8c2018af52bf4e1dd81ba5ce1aeb69ae68556df727b4b61e4b
Sep 04 00:29:08.932 INFO running `"docker" "start" "-a" "c39d36fdcaa75f8c2018af52bf4e1dd81ba5ce1aeb69ae68556df727b4b61e4b"`
Sep 04 00:29:09.797 INFO kablam!     Checking tk-bufstream v0.3.0 (file:///source)
Sep 04 00:29:12.908 INFO kablam! warning: unused import: `std::str`
Sep 04 00:29:12.908 INFO kablam!  --> examples/raw_echo.rs:8:5
Sep 04 00:29:12.908 INFO kablam!   |
Sep 04 00:29:12.908 INFO kablam! 8 | use std::str;
Sep 04 00:29:12.908 INFO kablam!   |     ^^^^^^^^
Sep 04 00:29:12.908 INFO kablam!   |
Sep 04 00:29:12.908 INFO kablam!   = note: #[warn(unused_imports)] on by default
Sep 04 00:29:12.908 INFO kablam! 
Sep 04 00:29:13.166 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.51s
Sep 04 00:29:13.177 INFO kablam! su: No module specific data is present
Sep 04 00:29:13.766 INFO running `"docker" "rm" "-f" "c39d36fdcaa75f8c2018af52bf4e1dd81ba5ce1aeb69ae68556df727b4b61e4b"`
Sep 04 00:29:13.908 INFO blam! c39d36fdcaa75f8c2018af52bf4e1dd81ba5ce1aeb69ae68556df727b4b61e4b