[INFO] updating cached repository https://github.com/glasses-n-contacts/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] 0fca64e1c6464c28e216859ca78b24a855bb4621
[INFO] testing glasses-n-contacts/rust-chat against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fglasses-n-contacts%2Frust-chat" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/glasses-n-contacts/rust-chat on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/glasses-n-contacts/rust-chat
[INFO] finished tweaking git repo https://github.com/glasses-n-contacts/rust-chat
[INFO] tweaked toml for git repo https://github.com/glasses-n-contacts/rust-chat written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/glasses-n-contacts/rust-chat already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stdout] 8a47b0898b643b01f2e28b4e833285d81c2951616581a71a84787d3017efbe55
[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" "8a47b0898b643b01f2e28b4e833285d81c2951616581a71a84787d3017efbe55"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling winapi-build v0.1.1
[INFO] [stderr]    Compiling libc v0.2.41
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling winapi v0.2.8
[INFO] [stderr]    Compiling gcc v0.3.54
[INFO] [stderr]    Compiling slab v0.1.3
[INFO] [stderr]    Compiling bytes v0.3.0
[INFO] [stderr]    Compiling byteorder v1.2.3
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling ws2_32-sys v0.2.1
[INFO] [stderr]    Compiling kernel32-sys v0.2.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling sha1 v0.1.1
[INFO] [stderr]    Compiling net2 v0.2.32
[INFO] [stderr]    Compiling time v0.1.40
[INFO] [stderr]    Compiling nix v0.5.1
[INFO] [stderr]    Compiling http-muncher v0.2.5
[INFO] [stderr]    Compiling miow v0.1.5
[INFO] [stderr]    Compiling mio v0.5.1
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket_client/frame.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let buf = try!(input.read_u16::<BigEndian>());
[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/socket_client/frame.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         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/socket_client/frame.rs:92:24
[INFO] [stderr]    |
[INFO] [stderr] 92 |             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/socket_client/frame.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |         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/socket_client/frame.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             PAYLOAD_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/socket_client/frame.rs:181:32
[INFO] [stderr]     |
[INFO] [stderr] 181 |             PAYLOAD_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/socket_client/frame.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         try!(output.write(&self.payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/socket_server.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/socket_client/frame.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |             body.write(status_code);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             client.socket.shutdown(Shutdown::Both);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             event_loop.deregister(&client.socket);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.79s
[INFO] running `"docker" "inspect" "8a47b0898b643b01f2e28b4e833285d81c2951616581a71a84787d3017efbe55"`
[INFO] running `"docker" "rm" "-f" "8a47b0898b643b01f2e28b4e833285d81c2951616581a71a84787d3017efbe55"`
[INFO] [stdout] 8a47b0898b643b01f2e28b4e833285d81c2951616581a71a84787d3017efbe55
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8fff3bf54b2735a08131cdd8abcef4b2ae043ed3a42f6f8236b5ffd6d368ca44
[INFO] running `"docker" "start" "-a" "8fff3bf54b2735a08131cdd8abcef4b2ae043ed3a42f6f8236b5ffd6d368ca44"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling chat v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket_client/frame.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let buf = try!(input.read_u16::<BigEndian>());
[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/socket_client/frame.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         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/socket_client/frame.rs:92:24
[INFO] [stderr]    |
[INFO] [stderr] 92 |             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/socket_client/frame.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |         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/socket_client/frame.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             PAYLOAD_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/socket_client/frame.rs:181:32
[INFO] [stderr]     |
[INFO] [stderr] 181 |             PAYLOAD_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/socket_client/frame.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         try!(output.write(&self.payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/socket_server.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/socket_client/frame.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |             body.write(status_code);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             client.socket.shutdown(Shutdown::Both);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             event_loop.deregister(&client.socket);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket_client/frame.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let buf = try!(input.read_u16::<BigEndian>());
[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/socket_client/frame.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         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/socket_client/frame.rs:92:24
[INFO] [stderr]    |
[INFO] [stderr] 92 |             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/socket_client/frame.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |         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/socket_client/frame.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             PAYLOAD_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/socket_client/frame.rs:181:32
[INFO] [stderr]     |
[INFO] [stderr] 181 |             PAYLOAD_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/socket_client/frame.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         try!(output.write(&self.payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/socket_server.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/socket_client/frame.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |             body.write(status_code);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             client.socket.shutdown(Shutdown::Both);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             event_loop.deregister(&client.socket);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.11s
[INFO] running `"docker" "inspect" "8fff3bf54b2735a08131cdd8abcef4b2ae043ed3a42f6f8236b5ffd6d368ca44"`
[INFO] running `"docker" "rm" "-f" "8fff3bf54b2735a08131cdd8abcef4b2ae043ed3a42f6f8236b5ffd6d368ca44"`
[INFO] [stdout] 8fff3bf54b2735a08131cdd8abcef4b2ae043ed3a42f6f8236b5ffd6d368ca44
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=warn" "-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" "+beta-2020-06-03" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 637995669e0836b06b46af95a386da81f34479365dc75ff5146e83bc2758b116
[INFO] running `"docker" "start" "-a" "637995669e0836b06b46af95a386da81f34479365dc75ff5146e83bc2758b116"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket_client/frame.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let buf = try!(input.read_u16::<BigEndian>());
[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/socket_client/frame.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         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/socket_client/frame.rs:92:24
[INFO] [stderr]    |
[INFO] [stderr] 92 |             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/socket_client/frame.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |         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/socket_client/frame.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             PAYLOAD_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/socket_client/frame.rs:181:32
[INFO] [stderr]     |
[INFO] [stderr] 181 |             PAYLOAD_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/socket_client/frame.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         try!(output.write(&self.payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/socket_server.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/socket_client/frame.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |             body.write(status_code);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             client.socket.shutdown(Shutdown::Both);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             event_loop.deregister(&client.socket);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/socket_client/frame.rs:87:19
[INFO] [stderr]    |
[INFO] [stderr] 87 |         let buf = try!(input.read_u16::<BigEndian>());
[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/socket_client/frame.rs:90:19
[INFO] [stderr]    |
[INFO] [stderr] 90 |         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/socket_client/frame.rs:92:24
[INFO] [stderr]    |
[INFO] [stderr] 92 |             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/socket_client/frame.rs:97:27
[INFO] [stderr]    |
[INFO] [stderr] 97 |         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/socket_client/frame.rs:142:9
[INFO] [stderr]     |
[INFO] [stderr] 142 |         try!(input.read(&mut buf));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:149:9
[INFO] [stderr]     |
[INFO] [stderr] 149 |         try!(input.read(&mut payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:176:9
[INFO] [stderr]     |
[INFO] [stderr] 176 |         try!(output.write_u16::<BigEndian>(hdr));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/socket_client/frame.rs:180:32
[INFO] [stderr]     |
[INFO] [stderr] 180 |             PAYLOAD_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/socket_client/frame.rs:181:32
[INFO] [stderr]     |
[INFO] [stderr] 181 |             PAYLOAD_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/socket_client/frame.rs:185:9
[INFO] [stderr]     |
[INFO] [stderr] 185 |         try!(output.write(&self.payload));
[INFO] [stderr]     |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/socket_server.rs:43:25
[INFO] [stderr]    |
[INFO] [stderr] 43 |                     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: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/socket_client/frame.rs:202:13
[INFO] [stderr]     |
[INFO] [stderr] 202 |             body.write(status_code);
[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: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |             client.socket.shutdown(Shutdown::Both);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/socket_server.rs:66:13
[INFO] [stderr]    |
[INFO] [stderr] 66 |             event_loop.deregister(&client.socket);
[INFO] [stderr]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: 14 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.13s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chat-7ec509780eb3515a
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/chat-fa7d2e6a65c5a567
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests chat
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "637995669e0836b06b46af95a386da81f34479365dc75ff5146e83bc2758b116"`
[INFO] running `"docker" "rm" "-f" "637995669e0836b06b46af95a386da81f34479365dc75ff5146e83bc2758b116"`
[INFO] [stdout] 637995669e0836b06b46af95a386da81f34479365dc75ff5146e83bc2758b116