Oct 31 21:01:33.925 INFO checking sinitcin/poll_engine against try#d7816399d50d407bbce1efe9dbadf8faaaf568fc for pr-55538
Oct 31 21:01:33.925 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-55538/worker-3/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-55538/try#d7816399d50d407bbce1efe9dbadf8faaaf568fc:/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 +d7816399d50d407bbce1efe9dbadf8faaaf568fc-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 31 21:01:34.522 INFO blam! 97358167a71a564e0ba11d18b69ce78561daece93e7a84c0a05c8a7384cb3956
Oct 31 21:01:34.525 INFO running `"docker" "start" "-a" "97358167a71a564e0ba11d18b69ce78561daece93e7a84c0a05c8a7384cb3956"`
Oct 31 21:01:36.415 INFO kablam! usermod: no changes
Oct 31 21:01:36.565 INFO kablam!     Checking serial-core v0.4.0
Oct 31 21:01:36.565 INFO kablam!     Checking termios v0.2.2
Oct 31 21:01:36.572 INFO kablam!     Checking ioctl-rs v0.1.6
Oct 31 21:01:36.576 INFO kablam!     Checking uuid v0.5.1
Oct 31 21:01:37.901 INFO kablam!     Checking serial-unix v0.4.0
Oct 31 21:01:38.537 INFO kablam!     Checking serial v0.4.0
Oct 31 21:01:38.927 INFO kablam!     Checking channel v0.1.0 (/source)
Oct 31 21:01:39.773 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.33s
Oct 31 21:01:39.778 INFO kablam! su: No module specific data is present
Oct 31 21:01:40.764 INFO running `"docker" "rm" "-f" "97358167a71a564e0ba11d18b69ce78561daece93e7a84c0a05c8a7384cb3956"`
Oct 31 21:01:41.004 INFO blam! 97358167a71a564e0ba11d18b69ce78561daece93e7a84c0a05c8a7384cb3956