Oct 13 04:23:29.345 INFO checking Hevienz/mio_test against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 04:23:29.345 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/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 13 04:23:29.711 INFO blam! b5c48400b40ec3bf9f204411096620863099506edaa81df1ff2682757e16e158
Oct 13 04:23:29.717 INFO running `"docker" "start" "-a" "b5c48400b40ec3bf9f204411096620863099506edaa81df1ff2682757e16e158"`
Oct 13 04:23:31.429 INFO kablam! usermod: no changes
Oct 13 04:23:31.522 INFO kablam!     Checking mio_test v0.1.0 (/source)
Oct 13 04:23:32.758 INFO kablam! warning: unused import: `Event`
Oct 13 04:23:32.758 INFO kablam!  --> src/main.rs:2:40
Oct 13 04:23:32.758 INFO kablam!   |
Oct 13 04:23:32.758 INFO kablam! 2 | use mio::{Token, Poll, Ready, PollOpt, Event, Events};
Oct 13 04:23:32.759 INFO kablam!   |                                        ^^^^^
Oct 13 04:23:32.759 INFO kablam!   |
Oct 13 04:23:32.759 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 04:23:32.759 INFO kablam! 
Oct 13 04:23:32.759 INFO kablam! warning: unused import: `TcpStream`
Oct 13 04:23:32.759 INFO kablam!  --> src/main.rs:3:29
Oct 13 04:23:32.759 INFO kablam!   |
Oct 13 04:23:32.759 INFO kablam! 3 | use mio::net::{TcpListener, TcpStream};
Oct 13 04:23:32.759 INFO kablam!   |                             ^^^^^^^^^
Oct 13 04:23:32.759 INFO kablam! 
Oct 13 04:23:32.788 INFO kablam! warning: unused import: `Event`
Oct 13 04:23:32.788 INFO kablam!  --> src/main.rs:2:40
Oct 13 04:23:32.788 INFO kablam!   |
Oct 13 04:23:32.788 INFO kablam! 2 | use mio::{Token, Poll, Ready, PollOpt, Event, Events};
Oct 13 04:23:32.788 INFO kablam!   |                                        ^^^^^
Oct 13 04:23:32.788 INFO kablam!   |
Oct 13 04:23:32.788 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 13 04:23:32.788 INFO kablam! 
Oct 13 04:23:32.788 INFO kablam! warning: unused import: `TcpStream`
Oct 13 04:23:32.788 INFO kablam!  --> src/main.rs:3:29
Oct 13 04:23:32.788 INFO kablam!   |
Oct 13 04:23:32.788 INFO kablam! 3 | use mio::net::{TcpListener, TcpStream};
Oct 13 04:23:32.788 INFO kablam!   |                             ^^^^^^^^^
Oct 13 04:23:32.788 INFO kablam! 
Oct 13 04:23:32.868 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 04:23:32.868 INFO kablam!   --> src/main.rs:98:5
Oct 13 04:23:32.868 INFO kablam!    |
Oct 13 04:23:32.868 INFO kablam! 98 |     run();
Oct 13 04:23:32.868 INFO kablam!    |     ^^^^^^
Oct 13 04:23:32.868 INFO kablam!    |
Oct 13 04:23:32.868 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 04:23:32.868 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 04:23:32.868 INFO kablam! 
Oct 13 04:23:32.900 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 04:23:32.900 INFO kablam!   --> src/main.rs:98:5
Oct 13 04:23:32.900 INFO kablam!    |
Oct 13 04:23:32.900 INFO kablam! 98 |     run();
Oct 13 04:23:32.900 INFO kablam!    |     ^^^^^^
Oct 13 04:23:32.901 INFO kablam!    |
Oct 13 04:23:32.904 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 13 04:23:32.904 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 04:23:32.904 INFO kablam! 
Oct 13 04:23:32.933 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 1.47s
Oct 13 04:23:32.936 INFO kablam! su: No module specific data is present
Oct 13 04:23:33.942 INFO running `"docker" "rm" "-f" "b5c48400b40ec3bf9f204411096620863099506edaa81df1ff2682757e16e158"`
Oct 13 04:23:34.247 INFO blam! b5c48400b40ec3bf9f204411096620863099506edaa81df1ff2682757e16e158