Oct 12 10:31:13.011 INFO checking xoac/u8-selector against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 10:31:13.013 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-4/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-4/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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 12 10:31:13.465 INFO blam! 052a08f0b1f1edbf719382976dea7f738feca0e037e08ae1f28178f2ef71693d
Oct 12 10:31:13.466 INFO running `"docker" "start" "-a" "052a08f0b1f1edbf719382976dea7f738feca0e037e08ae1f28178f2ef71693d"`
Oct 12 10:31:15.384 INFO kablam! usermod: no changes
Oct 12 10:31:15.596 INFO kablam!    Compiling nix v0.10.0
Oct 12 10:31:15.596 INFO kablam!     Checking void v1.0.2
Oct 12 10:31:15.600 INFO kablam!    Compiling regex v1.0.0
Oct 12 10:31:15.600 INFO kablam!     Checking utf8-ranges v1.0.0
Oct 12 10:31:15.600 INFO kablam!     Checking quick-error v1.2.2
Oct 12 10:31:15.600 INFO kablam!     Checking termcolor v0.3.6
Oct 12 10:31:15.600 INFO kablam!    Compiling libudev-sys v0.1.4
Oct 12 10:31:15.612 INFO kablam!     Checking crossbeam-utils v0.3.2
Oct 12 10:31:16.236 INFO kablam!     Checking log v0.4.2
Oct 12 10:31:16.413 INFO kablam!     Checking net2 v0.2.32
Oct 12 10:31:16.586 INFO kablam!     Checking memchr v2.0.1
Oct 12 10:31:18.248 INFO kablam!     Checking atty v0.2.10
Oct 12 10:31:18.248 INFO kablam!     Checking regex-syntax v0.6.1
Oct 12 10:31:18.248 INFO kablam!     Checking humantime v1.1.1
Oct 12 10:31:18.484 INFO kablam!     Checking unreachable v1.0.0
Oct 12 10:31:18.677 INFO kablam!     Checking aho-corasick v0.6.4
Oct 12 10:31:18.776 INFO kablam!     Checking crossbeam-epoch v0.4.3
Oct 12 10:31:19.422 INFO kablam!     Checking tokio-timer v0.2.4
Oct 12 10:31:19.661 INFO kablam!     Checking tokio-io v0.1.7
Oct 12 10:31:19.701 INFO kablam!     Checking mio v0.6.14
Oct 12 10:31:19.737 INFO kablam!     Checking thread_local v0.3.5
Oct 12 10:31:22.949 INFO kablam!     Checking crossbeam-deque v0.3.1
Oct 12 10:31:24.857 INFO kablam!     Checking tokio-threadpool v0.1.4
Oct 12 10:31:25.822 INFO kablam!     Checking libudev v0.2.0
Oct 12 10:31:26.679 INFO kablam!     Checking tokio-codec v0.1.0
Oct 12 10:31:28.557 INFO kablam!     Checking tokio-reactor v0.1.2
Oct 12 10:31:30.194 INFO kablam!     Checking tokio-fs v0.1.1
Oct 12 10:31:30.858 INFO kablam!     Checking tokio-udp v0.1.1
Oct 12 10:31:30.858 INFO kablam!     Checking tokio-tcp v0.1.0
Oct 12 10:31:32.441 INFO kablam!     Checking tokio v0.1.7
Oct 12 10:31:39.832 INFO kablam!     Checking serialport v2.3.0
Oct 12 10:31:40.648 INFO kablam!     Checking env_logger v0.5.10
Oct 12 10:31:40.817 INFO kablam!     Checking mio-serial v0.8.0
Oct 12 10:31:41.304 INFO kablam!     Checking tokio-serial v0.8.0
Oct 12 10:31:41.524 INFO kablam!     Checking pretty_env_logger v0.2.3
Oct 12 10:31:42.012 INFO kablam!     Checking u8-selector v0.1.0 (/source)
Oct 12 10:31:43.277 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 27.86s
Oct 12 10:31:43.284 INFO kablam! su: No module specific data is present
Oct 12 10:31:44.809 INFO running `"docker" "rm" "-f" "052a08f0b1f1edbf719382976dea7f738feca0e037e08ae1f28178f2ef71693d"`
Oct 12 10:31:45.061 INFO blam! 052a08f0b1f1edbf719382976dea7f738feca0e037e08ae1f28178f2ef71693d