Dec 04 19:42:56.276 INFO checking dmitryvm/websocket-server against master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc for pr-56481
Dec 04 19:42:56.276 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/master#c8ae2de8363be088604ffa2ccba84ff7ad7250bc:/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 +c8ae2de8363be088604ffa2ccba84ff7ad7250bc-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"`
Dec 04 19:42:56.788 INFO [stdout] 9661445ab6ff42555d8828c18a8beda74834179f5b5242808b2f44ba8f247bc4
Dec 04 19:42:56.791 INFO running `"docker" "start" "-a" "9661445ab6ff42555d8828c18a8beda74834179f5b5242808b2f44ba8f247bc4"`
Dec 04 19:42:57.830 INFO [stderr] usermod: no changes
Dec 04 19:42:57.931 INFO [stderr]     Checking bytes v0.2.11
Dec 04 19:42:57.931 INFO [stderr]    Compiling http-muncher v0.2.5
Dec 04 19:42:57.931 INFO [stderr]     Checking winapi v0.1.23
Dec 04 19:42:57.931 INFO [stderr]     Checking nix v0.3.10
Dec 04 19:43:01.311 INFO [stderr]     Checking mio v0.4.4
Dec 04 19:43:02.559 INFO [stderr]     Checking mudgate v0.1.0 (/source)
Dec 04 19:43:03.585 INFO [stderr] warning: unused import: `std::error::Error`
Dec 04 19:43:03.585 INFO [stderr]  --> src/frame.rs:3:5
Dec 04 19:43:03.585 INFO [stderr]   |
Dec 04 19:43:03.586 INFO [stderr] 3 | use std::error::Error;
Dec 04 19:43:03.586 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 19:43:03.586 INFO [stderr]   |
Dec 04 19:43:03.587 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 19:43:03.587 INFO [stderr] 
Dec 04 19:43:03.851 INFO [stderr] warning: unused import: `std::error::Error`
Dec 04 19:43:03.851 INFO [stderr]  --> src/frame.rs:3:5
Dec 04 19:43:03.852 INFO [stderr]   |
Dec 04 19:43:03.852 INFO [stderr] 3 | use std::error::Error;
Dec 04 19:43:03.852 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 04 19:43:03.853 INFO [stderr]   |
Dec 04 19:43:03.853 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 04 19:43:03.853 INFO [stderr] 
Dec 04 19:43:03.907 INFO [stderr] warning: variable does not need to be mutable
Dec 04 19:43:03.907 INFO [stderr]    --> src/main.rs:209:17
Dec 04 19:43:03.908 INFO [stderr]     |
Dec 04 19:43:03.908 INFO [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
Dec 04 19:43:03.908 INFO [stderr]     |                 ----^^^^^^
Dec 04 19:43:03.909 INFO [stderr]     |                 |
Dec 04 19:43:03.909 INFO [stderr]     |                 help: remove this `mut`
Dec 04 19:43:03.909 INFO [stderr]     |
Dec 04 19:43:03.909 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 19:43:03.910 INFO [stderr] 
Dec 04 19:43:03.959 INFO [stderr] warning: method is never used: `get_opcode`
Dec 04 19:43:03.959 INFO [stderr]    --> src/frame.rs:139:5
Dec 04 19:43:03.959 INFO [stderr]     |
Dec 04 19:43:03.959 INFO [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
Dec 04 19:43:03.959 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:43:03.959 INFO [stderr]     |
Dec 04 19:43:03.959 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 19:43:03.959 INFO [stderr] 
Dec 04 19:43:03.959 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:43:03.960 INFO [stderr]    --> src/main.rs:234:5
Dec 04 19:43:03.960 INFO [stderr]     |
Dec 04 19:43:03.960 INFO [stderr] 234 |     event_loop.run(&mut server);
Dec 04 19:43:03.960 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:43:03.960 INFO [stderr]     |
Dec 04 19:43:03.960 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 19:43:03.960 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:43:03.960 INFO [stderr] 
Dec 04 19:43:04.099 INFO [stderr] warning: variable does not need to be mutable
Dec 04 19:43:04.099 INFO [stderr]    --> src/main.rs:209:17
Dec 04 19:43:04.099 INFO [stderr]     |
Dec 04 19:43:04.099 INFO [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
Dec 04 19:43:04.099 INFO [stderr]     |                 ----^^^^^^
Dec 04 19:43:04.099 INFO [stderr]     |                 |
Dec 04 19:43:04.099 INFO [stderr]     |                 help: remove this `mut`
Dec 04 19:43:04.099 INFO [stderr]     |
Dec 04 19:43:04.099 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 04 19:43:04.099 INFO [stderr] 
Dec 04 19:43:04.121 INFO [stderr] warning: method is never used: `get_opcode`
Dec 04 19:43:04.121 INFO [stderr]    --> src/frame.rs:139:5
Dec 04 19:43:04.121 INFO [stderr]     |
Dec 04 19:43:04.121 INFO [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
Dec 04 19:43:04.121 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:43:04.121 INFO [stderr]     |
Dec 04 19:43:04.121 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 04 19:43:04.121 INFO [stderr] 
Dec 04 19:43:04.123 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 04 19:43:04.123 INFO [stderr]    --> src/main.rs:234:5
Dec 04 19:43:04.123 INFO [stderr]     |
Dec 04 19:43:04.123 INFO [stderr] 234 |     event_loop.run(&mut server);
Dec 04 19:43:04.123 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 04 19:43:04.123 INFO [stderr]     |
Dec 04 19:43:04.123 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 04 19:43:04.123 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 04 19:43:04.123 INFO [stderr] 
Dec 04 19:43:04.139 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.28s
Dec 04 19:43:04.141 INFO [stderr] su: No module specific data is present
Dec 04 19:43:05.165 INFO running `"docker" "inspect" "9661445ab6ff42555d8828c18a8beda74834179f5b5242808b2f44ba8f247bc4"`
Dec 04 19:43:05.497 INFO running `"docker" "rm" "-f" "9661445ab6ff42555d8828c18a8beda74834179f5b5242808b2f44ba8f247bc4"`
Dec 04 19:43:05.851 INFO [stdout] 9661445ab6ff42555d8828c18a8beda74834179f5b5242808b2f44ba8f247bc4