Dec 19 17:52:45.760 INFO checking dmitryvm/websocket-server against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:52:45.760 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/dmitryvm/websocket-server:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 17:52:46.318 INFO [stdout] cc0a7d92426952b4e0697704ca84044f4ccba4be79e7c6f87866438920ce52ca
Dec 19 17:52:46.322 INFO running `"docker" "start" "-a" "cc0a7d92426952b4e0697704ca84044f4ccba4be79e7c6f87866438920ce52ca"`
Dec 19 17:52:47.324 INFO [stderr]     Checking bytes v0.2.11
Dec 19 17:52:47.324 INFO [stderr]    Compiling http-muncher v0.2.5
Dec 19 17:52:47.324 INFO [stderr]     Checking nix v0.3.10
Dec 19 17:52:47.324 INFO [stderr]     Checking winapi v0.1.23
Dec 19 17:52:47.324 INFO [stderr]     Checking sha1 v0.1.1
Dec 19 17:52:49.885 INFO [stderr]     Checking mio v0.4.4
Dec 19 17:52:50.956 INFO [stderr]     Checking mudgate v0.1.0 (/opt/crater/workdir)
Dec 19 17:52:51.364 INFO [stderr] warning: unused import: `std::error::Error`
Dec 19 17:52:51.364 INFO [stderr]  --> src/frame.rs:3:5
Dec 19 17:52:51.364 INFO [stderr]   |
Dec 19 17:52:51.364 INFO [stderr] 3 | use std::error::Error;
Dec 19 17:52:51.364 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 19 17:52:51.364 INFO [stderr]   |
Dec 19 17:52:51.364 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 17:52:51.364 INFO [stderr] 
Dec 19 17:52:51.396 INFO [stderr] warning: unused import: `std::error::Error`
Dec 19 17:52:51.396 INFO [stderr]  --> src/frame.rs:3:5
Dec 19 17:52:51.396 INFO [stderr]   |
Dec 19 17:52:51.397 INFO [stderr] 3 | use std::error::Error;
Dec 19 17:52:51.397 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 19 17:52:51.397 INFO [stderr]   |
Dec 19 17:52:51.397 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 17:52:51.398 INFO [stderr] 
Dec 19 17:52:51.724 INFO [stderr] warning: variable does not need to be mutable
Dec 19 17:52:51.724 INFO [stderr]    --> src/main.rs:209:17
Dec 19 17:52:51.724 INFO [stderr]     |
Dec 19 17:52:51.724 INFO [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
Dec 19 17:52:51.724 INFO [stderr]     |                 ----^^^^^^
Dec 19 17:52:51.724 INFO [stderr]     |                 |
Dec 19 17:52:51.724 INFO [stderr]     |                 help: remove this `mut`
Dec 19 17:52:51.724 INFO [stderr]     |
Dec 19 17:52:51.736 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 17:52:51.736 INFO [stderr] 
Dec 19 17:52:51.752 INFO [stderr] warning: method is never used: `get_opcode`
Dec 19 17:52:51.752 INFO [stderr]    --> src/frame.rs:139:5
Dec 19 17:52:51.752 INFO [stderr]     |
Dec 19 17:52:51.752 INFO [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
Dec 19 17:52:51.752 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:52:51.752 INFO [stderr]     |
Dec 19 17:52:51.752 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 17:52:51.752 INFO [stderr] 
Dec 19 17:52:51.754 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:52:51.754 INFO [stderr]    --> src/main.rs:234:5
Dec 19 17:52:51.754 INFO [stderr]     |
Dec 19 17:52:51.754 INFO [stderr] 234 |     event_loop.run(&mut server);
Dec 19 17:52:51.754 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:52:51.754 INFO [stderr]     |
Dec 19 17:52:51.754 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 17:52:51.754 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:52:51.754 INFO [stderr] 
Dec 19 17:52:51.770 INFO [stderr] warning: variable does not need to be mutable
Dec 19 17:52:51.770 INFO [stderr]    --> src/main.rs:209:17
Dec 19 17:52:51.770 INFO [stderr]     |
Dec 19 17:52:51.770 INFO [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
Dec 19 17:52:51.770 INFO [stderr]     |                 ----^^^^^^
Dec 19 17:52:51.770 INFO [stderr]     |                 |
Dec 19 17:52:51.770 INFO [stderr]     |                 help: remove this `mut`
Dec 19 17:52:51.770 INFO [stderr]     |
Dec 19 17:52:51.770 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 19 17:52:51.770 INFO [stderr] 
Dec 19 17:52:51.787 INFO [stderr] warning: method is never used: `get_opcode`
Dec 19 17:52:51.787 INFO [stderr]    --> src/frame.rs:139:5
Dec 19 17:52:51.787 INFO [stderr]     |
Dec 19 17:52:51.787 INFO [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
Dec 19 17:52:51.787 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:52:51.787 INFO [stderr]     |
Dec 19 17:52:51.792 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 19 17:52:51.792 INFO [stderr] 
Dec 19 17:52:51.792 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 19 17:52:51.792 INFO [stderr]    --> src/main.rs:234:5
Dec 19 17:52:51.792 INFO [stderr]     |
Dec 19 17:52:51.792 INFO [stderr] 234 |     event_loop.run(&mut server);
Dec 19 17:52:51.792 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 17:52:51.792 INFO [stderr]     |
Dec 19 17:52:51.792 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 19 17:52:51.792 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 19 17:52:51.792 INFO [stderr] 
Dec 19 17:52:51.827 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.55s
Dec 19 17:52:53.118 INFO running `"docker" "inspect" "cc0a7d92426952b4e0697704ca84044f4ccba4be79e7c6f87866438920ce52ca"`
Dec 19 17:52:53.510 INFO running `"docker" "rm" "-f" "cc0a7d92426952b4e0697704ca84044f4ccba4be79e7c6f87866438920ce52ca"`
Dec 19 17:52:53.820 INFO [stdout] cc0a7d92426952b4e0697704ca84044f4ccba4be79e7c6f87866438920ce52ca