[INFO] updating cached repository https://github.com/chansuke/rust_chat
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 3b873d67f156172d75e7df27724d5f1853aca532
[INFO] checking chansuke/rust_chat against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchansuke%2Frust_chat" "/workspace/builds/worker-7/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/chansuke/rust_chat on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/chansuke/rust_chat
[INFO] finished tweaking git repo https://github.com/chansuke/rust_chat
[INFO] tweaked toml for git repo https://github.com/chansuke/rust_chat written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/chansuke/rust_chat already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating git repository `https://github.com/carllerche/mio`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 7587d232b0153a72499021a00742a1457f3a95d9806d7f40657d0df206d33bcf
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7587d232b0153a72499021a00742a1457f3a95d9806d7f40657d0df206d33bcf"`
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]     Checking sha1 v0.1.1
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]     Checking mio v0.7.0 (https://github.com/carllerche/mio#976f2354)
[INFO] [stderr]     Checking rust_chat v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0432]: unresolved import `mio::tcp`
[INFO] [stderr]   --> src/main.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | use mio::tcp::*;
[INFO] [stderr]    |          ^^^ could not find `tcp` in `mio`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]   --> src/main.rs:78:23
[INFO] [stderr]    |
[INFO] [stderr] 78 |             interest: EventSet::readable(),
[INFO] [stderr]    |                       ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:103:38
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 self.interest.remove(EventSet::writable());
[INFO] [stderr]     |                                      ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:104:38
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 self.interest.insert(EventSet::readable());
[INFO] [stderr]     |                                      ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:122:30
[INFO] [stderr]     |
[INFO] [stderr] 122 |         self.interest.remove(EventSet::writable());
[INFO] [stderr]     |                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:123:30
[INFO] [stderr]     |
[INFO] [stderr] 123 |         self.interest.insert(EventSet::readable());
[INFO] [stderr]     |                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:140:46
[INFO] [stderr]     |
[INFO] [stderr] 140 |                         self.interest.remove(EventSet::readable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:141:46
[INFO] [stderr]     |
[INFO] [stderr] 141 |                         self.interest.insert(EventSet::writable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:173:46
[INFO] [stderr]     |
[INFO] [stderr] 173 |                         self.interest.remove(EventSet::readable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:174:46
[INFO] [stderr]     |
[INFO] [stderr] 174 |                         self.interest.insert(EventSet::writable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:212:86
[INFO] [stderr]     |
[INFO] [stderr] 212 |                     event_loop.register(&self.clients[&new_token].socket, new_token, EventSet::readable(),
[INFO] [stderr]     |                                                                                      ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:213:41
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                       ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:213:59
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:219:43
[INFO] [stderr]     |
[INFO] [stderr] 219 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                       ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:219:61
[INFO] [stderr]     |
[INFO] [stderr] 219 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:228:35
[INFO] [stderr]     |
[INFO] [stderr] 228 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                       ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:228:53
[INFO] [stderr]     |
[INFO] [stderr] 228 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `TcpListener`
[INFO] [stderr]    --> src/main.rs:235:25
[INFO] [stderr]     |
[INFO] [stderr] 235 |     let server_socket = TcpListener::bind(&address).unwrap();
[INFO] [stderr]     |                         ^^^^^^^^^^^ use of undeclared type or module `TcpListener`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventLoop`
[INFO] [stderr]    --> src/main.rs:237:26
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut event_loop = EventLoop::new().unwrap();
[INFO] [stderr]     |                          ^^^^^^^^^ use of undeclared type or module `EventLoop`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:247:25
[INFO] [stderr]     |
[INFO] [stderr] 247 |                         EventSet::readable(),
[INFO] [stderr]     |                         ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |                         PollOpt::edge()).unwrap();
[INFO] [stderr]     |                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0432]: unresolved import `mio::tcp`
[INFO] [stderr]   --> src/main.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | use mio::tcp::*;
[INFO] [stderr]    |          ^^^ could not find `tcp` in `mio`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TcpStream` in this scope
[INFO] [stderr]   --> src/main.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |     socket: TcpStream,
[INFO] [stderr]    |             ^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 9  | use std::net::TcpStream;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EventSet` in this scope
[INFO] [stderr]   --> src/main.rs:66:15
[INFO] [stderr]    |
[INFO] [stderr] 66 |     interest: EventSet,
[INFO] [stderr]    |               ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TcpStream` in this scope
[INFO] [stderr]   --> src/main.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn new(socket: TcpStream) -> WebSocketClient {
[INFO] [stderr]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 9  | use std::net::TcpStream;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TcpListener` in this scope
[INFO] [stderr]    --> src/main.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |     socket: TcpListener,
[INFO] [stderr]     |             ^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 9   | use std::net::TcpListener;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Handler` in this scope
[INFO] [stderr]    --> src/main.rs:191:6
[INFO] [stderr]     |
[INFO] [stderr] 191 | impl Handler for WebSocketServer {
[INFO] [stderr]     |      ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stderr]    --> src/main.rs:195:42
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn ready(&mut self, event_loop: &mut EventLoop<WebSocketServer>, token: Token, events: EventSet) {
[INFO] [stderr]     |                                          ^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EventSet` in this scope
[INFO] [stderr]    --> src/main.rs:195:92
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn ready(&mut self, event_loop: &mut EventLoop<WebSocketServer>, token: Token, events: EventSet) {
[INFO] [stderr]     |                                                                                            ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:89:30
[INFO] [stderr]    |
[INFO] [stderr] 89 |             FRAME_LEN_U16 => try!(output.write_u16::<BigEndian>(self.payload.len() as u16)),
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:90:30
[INFO] [stderr]    |
[INFO] [stderr] 90 |             FRAME_LEN_U64 => try!(output.write_u64::<BigEndian>(self.payload.len() as u64)),
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         try!(output.write(&self.payload));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:99:19
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let buf = try!(input.read_u16::<BigEndian>());
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:102:19
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let len = try!(Self::read_length(header.payload_length, input));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:104:24
[INFO] [stderr]     |
[INFO] [stderr] 104 |             let mask = try!(Self::read_mask(input));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:109:27
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut payload = try!(Self::read_payload(len, input));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 163 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/frame.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 28 previous errors; 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0412, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]   --> src/main.rs:78:23
[INFO] [stderr]    |
[INFO] [stderr] 78 |             interest: EventSet::readable(),
[INFO] [stderr]    |                       ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:103:38
[INFO] [stderr]     |
[INFO] [stderr] 103 |                 self.interest.remove(EventSet::writable());
[INFO] [stderr]     |                                      ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:104:38
[INFO] [stderr]     |
[INFO] [stderr] 104 |                 self.interest.insert(EventSet::readable());
[INFO] [stderr]     |                                      ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:122:30
[INFO] [stderr]     |
[INFO] [stderr] 122 |         self.interest.remove(EventSet::writable());
[INFO] [stderr]     |                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:123:30
[INFO] [stderr]     |
[INFO] [stderr] 123 |         self.interest.insert(EventSet::readable());
[INFO] [stderr]     |                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:140:46
[INFO] [stderr]     |
[INFO] [stderr] 140 |                         self.interest.remove(EventSet::readable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:141:46
[INFO] [stderr]     |
[INFO] [stderr] 141 |                         self.interest.insert(EventSet::writable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:173:46
[INFO] [stderr]     |
[INFO] [stderr] 173 |                         self.interest.remove(EventSet::readable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:174:46
[INFO] [stderr]     |
[INFO] [stderr] 174 |                         self.interest.insert(EventSet::writable());
[INFO] [stderr]     |                                              ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:212:86
[INFO] [stderr]     |
[INFO] [stderr] 212 |                     event_loop.register(&self.clients[&new_token].socket, new_token, EventSet::readable(),
[INFO] [stderr]     |                                                                                      ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:213:41
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                       ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:213:59
[INFO] [stderr]     |
[INFO] [stderr] 213 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:219:43
[INFO] [stderr]     |
[INFO] [stderr] 219 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                       ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:219:61
[INFO] [stderr]     |
[INFO] [stderr] 219 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:228:35
[INFO] [stderr]     |
[INFO] [stderr] 228 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                       ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:228:53
[INFO] [stderr]     |
[INFO] [stderr] 228 | ...                   PollOpt::edge() | PollOpt::oneshot()).unwrap();
[INFO] [stderr]     |                                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `TcpListener`
[INFO] [stderr]    --> src/main.rs:235:25
[INFO] [stderr]     |
[INFO] [stderr] 235 |     let server_socket = TcpListener::bind(&address).unwrap();
[INFO] [stderr]     |                         ^^^^^^^^^^^ use of undeclared type or module `TcpListener`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventLoop`
[INFO] [stderr]    --> src/main.rs:237:26
[INFO] [stderr]     |
[INFO] [stderr] 237 |     let mut event_loop = EventLoop::new().unwrap();
[INFO] [stderr]     |                          ^^^^^^^^^ use of undeclared type or module `EventLoop`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `EventSet`
[INFO] [stderr]    --> src/main.rs:247:25
[INFO] [stderr]     |
[INFO] [stderr] 247 |                         EventSet::readable(),
[INFO] [stderr]     |                         ^^^^^^^^ use of undeclared type or module `EventSet`
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: use of undeclared type or module `PollOpt`
[INFO] [stderr]    --> src/main.rs:248:25
[INFO] [stderr]     |
[INFO] [stderr] 248 |                         PollOpt::edge()).unwrap();
[INFO] [stderr]     |                         ^^^^^^^ use of undeclared type or module `PollOpt`
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TcpStream` in this scope
[INFO] [stderr]   --> src/main.rs:64:13
[INFO] [stderr]    |
[INFO] [stderr] 64 |     socket: TcpStream,
[INFO] [stderr]    |             ^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 9  | use std::net::TcpStream;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EventSet` in this scope
[INFO] [stderr]   --> src/main.rs:66:15
[INFO] [stderr]    |
[INFO] [stderr] 66 |     interest: EventSet,
[INFO] [stderr]    |               ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TcpStream` in this scope
[INFO] [stderr]   --> src/main.rs:72:20
[INFO] [stderr]    |
[INFO] [stderr] 72 |     fn new(socket: TcpStream) -> WebSocketClient {
[INFO] [stderr]    |                    ^^^^^^^^^ not found in this scope
[INFO] [stderr]    |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]    |
[INFO] [stderr] 9  | use std::net::TcpStream;
[INFO] [stderr]    |
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `TcpListener` in this scope
[INFO] [stderr]    --> src/main.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |     socket: TcpListener,
[INFO] [stderr]     |             ^^^^^^^^^^^ not found in this scope
[INFO] [stderr]     |
[INFO] [stderr] help: possible candidate is found in another module, you can import it into scope
[INFO] [stderr]     |
[INFO] [stderr] 9   | use std::net::TcpListener;
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] error[E0405]: cannot find trait `Handler` in this scope
[INFO] [stderr]    --> src/main.rs:191:6
[INFO] [stderr]     |
[INFO] [stderr] 191 | impl Handler for WebSocketServer {
[INFO] [stderr]     |      ^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EventLoop` in this scope
[INFO] [stderr]    --> src/main.rs:195:42
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn ready(&mut self, event_loop: &mut EventLoop<WebSocketServer>, token: Token, events: EventSet) {
[INFO] [stderr]     |                                          ^^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `EventSet` in this scope
[INFO] [stderr]    --> src/main.rs:195:92
[INFO] [stderr]     |
[INFO] [stderr] 195 |     fn ready(&mut self, event_loop: &mut EventLoop<WebSocketServer>, token: Token, events: EventSet) {
[INFO] [stderr]     |                                                                                            ^^^^^^^^ not found in this scope
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `rust_chat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:86:9
[INFO] [stderr]    |
[INFO] [stderr] 86 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]    |         ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:89:30
[INFO] [stderr]    |
[INFO] [stderr] 89 |             FRAME_LEN_U16 => try!(output.write_u16::<BigEndian>(self.payload.len() as u16)),
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:90:30
[INFO] [stderr]    |
[INFO] [stderr] 90 |             FRAME_LEN_U64 => try!(output.write_u64::<BigEndian>(self.payload.len() as u64)),
[INFO] [stderr]    |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:94:9
[INFO] [stderr]    |
[INFO] [stderr] 94 |         try!(output.write(&self.payload));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/frame.rs:99:19
[INFO] [stderr]    |
[INFO] [stderr] 99 |         let buf = try!(input.read_u16::<BigEndian>());
[INFO] [stderr]    |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:102:19
[INFO] [stderr]     |
[INFO] [stderr] 102 |         let len = try!(Self::read_length(header.payload_length, input));
[INFO] [stderr]     |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:104:24
[INFO] [stderr]     |
[INFO] [stderr] 104 |             let mask = try!(Self::read_mask(input));
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:109:27
[INFO] [stderr]     |
[INFO] [stderr] 109 |         let mut payload = try!(Self::read_payload(len, input));
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:156:9
[INFO] [stderr]     |
[INFO] [stderr] 156 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/frame.rs:163:9
[INFO] [stderr]     |
[INFO] [stderr] 163 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::error::Error`
[INFO] [stderr]  --> src/frame.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::error::Error;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 28 previous errors; 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0405, E0412, E0432, E0433.
[INFO] [stderr] For more information about an error, try `rustc --explain E0405`.
[INFO] [stderr] error: could not compile `rust_chat`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "7587d232b0153a72499021a00742a1457f3a95d9806d7f40657d0df206d33bcf"`
[INFO] running `"docker" "rm" "-f" "7587d232b0153a72499021a00742a1457f3a95d9806d7f40657d0df206d33bcf"`
[INFO] [stdout] 7587d232b0153a72499021a00742a1457f3a95d9806d7f40657d0df206d33bcf