[INFO] updating cached repository dmitryvm/websocket-server
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/dmitryvm/websocket-server
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/dmitryvm/websocket-server" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/dmitryvm/websocket-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/dmitryvm/websocket-server'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/dmitryvm/websocket-server" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/dmitryvm/websocket-server"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/dmitryvm/websocket-server'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5fda1e9e9a03494a4e2296c3462d51a4481118b9
[INFO] sha for GitHub repo dmitryvm/websocket-server: 5fda1e9e9a03494a4e2296c3462d51a4481118b9
[INFO] validating manifest of dmitryvm/websocket-server on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of dmitryvm/websocket-server on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing dmitryvm/websocket-server
[INFO] finished frobbing dmitryvm/websocket-server
[INFO] frobbed toml for dmitryvm/websocket-server written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/dmitryvm/websocket-server/Cargo.toml
[INFO] started frobbing dmitryvm/websocket-server
[INFO] finished frobbing dmitryvm/websocket-server
[INFO] frobbed toml for dmitryvm/websocket-server written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/dmitryvm/websocket-server/Cargo.toml
[INFO] crate dmitryvm/websocket-server already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking dmitryvm/websocket-server against try#f45cc3094ee337acd688771b9234318046b0572d for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-1/try#f45cc3094ee337acd688771b9234318046b0572d:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/dmitryvm/websocket-server:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 89d9222e185a2cc5ce59a559dea9a7c1757147bf489e21cdf7218d74819a580b
[INFO] running `"docker" "start" "-a" "89d9222e185a2cc5ce59a559dea9a7c1757147bf489e21cdf7218d74819a580b"`
[INFO] [stderr]     Checking bytes v0.2.11
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]     Checking nix v0.3.10
[INFO] [stderr]     Checking winapi v0.1.23
[INFO] [stderr]     Checking mio v0.4.4
[INFO] [stderr]     Checking mudgate v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/frame.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/frame.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:201:25
[INFO] [stderr]     |
[INFO] [stderr] 201 |                     let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_opcode`
[INFO] [stderr]    --> src/frame.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 234 |     event_loop.run(&mut server);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:201:25
[INFO] [stderr]     |
[INFO] [stderr] 201 |                     let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stderr]     |                         ----^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_mut)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/main.rs:209:17
[INFO] [stderr]     |
[INFO] [stderr] 209 |             let mut client = self.clients.get_mut(&token).unwrap();
[INFO] [stderr]     |                 ----^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_opcode`
[INFO] [stderr]    --> src/frame.rs:139:5
[INFO] [stderr]     |
[INFO] [stderr] 139 |     pub fn get_opcode(&self) -> OpCode {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/main.rs:234:5
[INFO] [stderr]     |
[INFO] [stderr] 234 |     event_loop.run(&mut server);
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.74s
[INFO] running `"docker" "inspect" "89d9222e185a2cc5ce59a559dea9a7c1757147bf489e21cdf7218d74819a580b"`
[INFO] running `"docker" "rm" "-f" "89d9222e185a2cc5ce59a559dea9a7c1757147bf489e21cdf7218d74819a580b"`
[INFO] [stdout] 89d9222e185a2cc5ce59a559dea9a7c1757147bf489e21cdf7218d74819a580b