Dec 11 19:32:42.747 INFO checking dmitryvm/websocket-server against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 19:32:42.747 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-4/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-4/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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 11 19:32:43.208 INFO [stdout] 4179dc7c94b3b26044ecb7317b6e9dc61037e9547f6922e2c2967d2cc827e0b6
Dec 11 19:32:43.212 INFO running `"docker" "start" "-a" "4179dc7c94b3b26044ecb7317b6e9dc61037e9547f6922e2c2967d2cc827e0b6"`
Dec 11 19:32:44.405 INFO [stderr] usermod: no changes
Dec 11 19:32:44.540 INFO [stderr]     Checking bytes v0.2.11
Dec 11 19:32:44.561 INFO [stderr]    Compiling http-muncher v0.2.5
Dec 11 19:32:44.561 INFO [stderr]     Checking nix v0.3.10
Dec 11 19:32:44.568 INFO [stderr]     Checking winapi v0.1.23
Dec 11 19:32:44.568 INFO [stderr]     Checking sha1 v0.1.1
Dec 11 19:32:48.482 INFO [stderr]     Checking mio v0.4.4
Dec 11 19:32:49.972 INFO [stderr]     Checking mudgate v0.1.0 (/source)
Dec 11 19:32:51.164 INFO [stderr] warning: unused import: `std::error::Error`
Dec 11 19:32:51.164 INFO [stderr]  --> src/frame.rs:3:5
Dec 11 19:32:51.164 INFO [stderr]   |
Dec 11 19:32:51.164 INFO [stderr] 3 | use std::error::Error;
Dec 11 19:32:51.168 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 11 19:32:51.168 INFO [stderr]   |
Dec 11 19:32:51.168 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 19:32:51.168 INFO [stderr] 
Dec 11 19:32:51.368 INFO [stderr] warning: unused import: `std::error::Error`
Dec 11 19:32:51.368 INFO [stderr]  --> src/frame.rs:3:5
Dec 11 19:32:51.368 INFO [stderr]   |
Dec 11 19:32:51.368 INFO [stderr] 3 | use std::error::Error;
Dec 11 19:32:51.368 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^
Dec 11 19:32:51.368 INFO [stderr]   |
Dec 11 19:32:51.368 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 19:32:51.368 INFO [stderr] 
Dec 11 19:32:51.520 INFO [stderr] warning: variable does not need to be mutable
Dec 11 19:32:51.520 INFO [stderr]    --> src/main.rs:209:17
Dec 11 19:32:51.520 INFO [stderr]     |
Dec 11 19:32:51.520 INFO [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
Dec 11 19:32:51.520 INFO [stderr]     |                 ----^^^^^^
Dec 11 19:32:51.520 INFO [stderr]     |                 |
Dec 11 19:32:51.520 INFO [stderr]     |                 help: remove this `mut`
Dec 11 19:32:51.520 INFO [stderr]     |
Dec 11 19:32:51.520 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 19:32:51.520 INFO [stderr] 
Dec 11 19:32:51.536 INFO [stderr] warning: method is never used: `get_opcode`
Dec 11 19:32:51.536 INFO [stderr]    --> src/frame.rs:139:5
Dec 11 19:32:51.536 INFO [stderr]     |
Dec 11 19:32:51.536 INFO [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
Dec 11 19:32:51.536 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:32:51.536 INFO [stderr]     |
Dec 11 19:32:51.536 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 19:32:51.536 INFO [stderr] 
Dec 11 19:32:51.536 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:32:51.536 INFO [stderr]    --> src/main.rs:234:5
Dec 11 19:32:51.536 INFO [stderr]     |
Dec 11 19:32:51.536 INFO [stderr] 234 |     event_loop.run(&mut server);
Dec 11 19:32:51.536 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:32:51.536 INFO [stderr]     |
Dec 11 19:32:51.536 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 19:32:51.536 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:32:51.536 INFO [stderr] 
Dec 11 19:32:51.700 INFO [stderr] warning: variable does not need to be mutable
Dec 11 19:32:51.700 INFO [stderr]    --> src/main.rs:209:17
Dec 11 19:32:51.700 INFO [stderr]     |
Dec 11 19:32:51.700 INFO [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
Dec 11 19:32:51.700 INFO [stderr]     |                 ----^^^^^^
Dec 11 19:32:51.700 INFO [stderr]     |                 |
Dec 11 19:32:51.700 INFO [stderr]     |                 help: remove this `mut`
Dec 11 19:32:51.700 INFO [stderr]     |
Dec 11 19:32:51.700 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Dec 11 19:32:51.700 INFO [stderr] 
Dec 11 19:32:51.732 INFO [stderr] warning: method is never used: `get_opcode`
Dec 11 19:32:51.732 INFO [stderr]    --> src/frame.rs:139:5
Dec 11 19:32:51.732 INFO [stderr]     |
Dec 11 19:32:51.732 INFO [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
Dec 11 19:32:51.732 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:32:51.732 INFO [stderr]     |
Dec 11 19:32:51.732 INFO [stderr]     = note: #[warn(dead_code)] on by default
Dec 11 19:32:51.732 INFO [stderr] 
Dec 11 19:32:51.736 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 11 19:32:51.736 INFO [stderr]    --> src/main.rs:234:5
Dec 11 19:32:51.736 INFO [stderr]     |
Dec 11 19:32:51.736 INFO [stderr] 234 |     event_loop.run(&mut server);
Dec 11 19:32:51.736 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 19:32:51.736 INFO [stderr]     |
Dec 11 19:32:51.736 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 11 19:32:51.736 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 11 19:32:51.736 INFO [stderr] 
Dec 11 19:32:51.784 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.34s
Dec 11 19:32:51.796 INFO [stderr] su: No module specific data is present
Dec 11 19:32:52.620 INFO running `"docker" "inspect" "4179dc7c94b3b26044ecb7317b6e9dc61037e9547f6922e2c2967d2cc827e0b6"`
Dec 11 19:32:52.966 INFO running `"docker" "rm" "-f" "4179dc7c94b3b26044ecb7317b6e9dc61037e9547f6922e2c2967d2cc827e0b6"`
Dec 11 19:32:53.273 INFO [stdout] 4179dc7c94b3b26044ecb7317b6e9dc61037e9547f6922e2c2967d2cc827e0b6