Oct 27 17:27:17.658 INFO checking rbtree-0.1.5 against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 17:27:17.659 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-4/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +19f01b935b91481fd445b16b533d2f87661bf12e-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 27 17:27:17.871 INFO blam! 1dea985f82a81afda0046bbbb330c086ba96b3bc47f0299e817dd0e4710edfcc
Oct 27 17:27:17.873 INFO running `"docker" "start" "-a" "1dea985f82a81afda0046bbbb330c086ba96b3bc47f0299e817dd0e4710edfcc"`
Oct 27 17:27:18.780 INFO kablam! usermod: no changes
Oct 27 17:27:18.867 INFO kablam!     Checking rbtree v0.1.5 (/source)
Oct 27 17:27:19.556 INFO kablam! warning: unused import: `super::RBTree`
Oct 27 17:27:19.557 INFO kablam!     --> src/lib.rs:1404:9
Oct 27 17:27:19.557 INFO kablam!      |
Oct 27 17:27:19.557 INFO kablam! 1404 |     use super::RBTree;
Oct 27 17:27:19.557 INFO kablam!      |         ^^^^^^^^^^^^^
Oct 27 17:27:19.557 INFO kablam!      |
Oct 27 17:27:19.557 INFO kablam!      = note: #[warn(unused_imports)] on by default
Oct 27 17:27:19.557 INFO kablam! 
Oct 27 17:27:21.147 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 2.33s
Oct 27 17:27:21.152 INFO kablam! su: No module specific data is present
Oct 27 17:27:21.599 INFO running `"docker" "rm" "-f" "1dea985f82a81afda0046bbbb330c086ba96b3bc47f0299e817dd0e4710edfcc"`
Oct 27 17:27:21.693 INFO blam! 1dea985f82a81afda0046bbbb330c086ba96b3bc47f0299e817dd0e4710edfcc