[INFO] cloning repository https://github.com/ProtoByter/pepechat
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ProtoByter/pepechat" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtoByter%2Fpepechat", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtoByter%2Fpepechat'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b1f67e41a6cb2be2c2b55ab2152284d949664ac9
[INFO] checking ProtoByter/pepechat against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FProtoByter%2Fpepechat" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ProtoByter/pepechat
[INFO] finished tweaking git repo https://github.com/ProtoByter/pepechat
[INFO] tweaked toml for git repo https://github.com/ProtoByter/pepechat written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ProtoByter/pepechat on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ProtoByter/pepechat already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 068e930496ab405e832d3a01e95e9a13cc638be7c3e4108c77c0a3fdd829cbd0
[INFO] running `Command { std: "docker" "start" "-a" "068e930496ab405e832d3a01e95e9a13cc638be7c3e4108c77c0a3fdd829cbd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "068e930496ab405e832d3a01e95e9a13cc638be7c3e4108c77c0a3fdd829cbd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "068e930496ab405e832d3a01e95e9a13cc638be7c3e4108c77c0a3fdd829cbd0", kill_on_drop: false }`
[INFO] [stdout] 068e930496ab405e832d3a01e95e9a13cc638be7c3e4108c77c0a3fdd829cbd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid -Dunmustuse_in_always_ok" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7a106546633d51d18f3079765c444541aa8eb6aecc07f8c2f0bb68fcc9edbc78
[INFO] running `Command { std: "docker" "start" "-a" "7a106546633d51d18f3079765c444541aa8eb6aecc07f8c2f0bb68fcc9edbc78", kill_on_drop: false }`
[INFO] [stderr] warning: virtual workspace defaulting to `resolver = "1"` despite one or more workspace members being on edition 2021 which implies `resolver = "2"`
[INFO] [stderr]   |
[INFO] [stderr]   = note: to keep the current resolver, specify `workspace.resolver = "1"` in the workspace root's manifest
[INFO] [stderr]   = note: to use the edition 2021 resolver, specify `workspace.resolver = "2"` in the workspace root's manifest
[INFO] [stderr]   = note: for more details see https://doc.rust-lang.org/cargo/reference/resolver.html#resolver-versions
[INFO] [stderr]    Compiling libc v0.2.120
[INFO] [stderr]    Compiling syn v1.0.88
[INFO] [stderr]    Compiling async-trait v0.1.52
[INFO] [stderr]     Checking pin-project-lite v0.2.8
[INFO] [stderr]     Checking tracker v0.1.0 (/opt/rustwide/workdir/pepechat-tracker/tracker)
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]     Checking socket2 v0.4.4
[INFO] [stderr]     Checking mio v0.8.1
[INFO] [stderr]     Checking tokio v1.17.0
[INFO] [stderr]     Checking pepechat v0.1.0 (/opt/rustwide/workdir/pepechat)
[INFO] [stderr]     Checking test-connector v0.1.0 (/opt/rustwide/workdir/pepechat-test/test-connector)
[INFO] [stderr]     Checking tracker-connector v0.1.0 (/opt/rustwide/workdir/pepechat-tracker/tracker-connector)
[INFO] [stderr]     Checking pepeclient v0.1.0 (/opt/rustwide/workdir/pepeclient)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut listener = TcpSocket::new_v4().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:50:38
[INFO] [stdout]    |
[INFO] [stdout] 50 |     async fn send_message(&mut self, message: Message) -> Result<(), TestConnectorError> {
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let port = (hooks.get_int)("What port should I listen on?".parse().unwrap());
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:23:43
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let other_ip = (hooks.get_string)("What IP is the other peer listening on?".parse().unwrap());
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             self.disconnect();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `disconnect` that must be used
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             self.disconnect();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let _ = self.disconnect();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         listener.bind(SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), self.port as u16));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let _ = listener.bind(SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), self.port as u16));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-connector` (lib test) due to 2 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:40:13
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let mut listener = TcpSocket::new_v4().unwrap();
[INFO] [stdout]    |             ----^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `message`
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:50:38
[INFO] [stdout]    |
[INFO] [stdout] 50 |     async fn send_message(&mut self, message: Message) -> Result<(), TestConnectorError> {
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_message`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:22:36
[INFO] [stdout]    |
[INFO] [stdout] 22 |         let port = (hooks.get_int)("What port should I listen on?".parse().unwrap());
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<String, Infallible>
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:23:43
[INFO] [stdout]    |
[INFO] [stdout] 23 |         let other_ip = (hooks.get_string)("What IP is the other peer listening on?".parse().unwrap());
[INFO] [stdout]    |                                           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused pinned boxed `Future` trait object that must be used
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             self.disconnect();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `disconnect` that must be used
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 |             self.disconnect();
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 36 |             let _ = self.disconnect();
[INFO] [stdout]    |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> pepechat-test/test-connector/src/lib.rs:41:9
[INFO] [stdout]    |
[INFO] [stdout] 41 |         listener.bind(SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), self.port as u16));
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let _ = listener.bind(SocketAddr::new(IpAddr::V4(Ipv4Addr::new(127, 0, 0, 1)), self.port as u16));
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `test-connector` (lib) due to 2 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7a106546633d51d18f3079765c444541aa8eb6aecc07f8c2f0bb68fcc9edbc78", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a106546633d51d18f3079765c444541aa8eb6aecc07f8c2f0bb68fcc9edbc78", kill_on_drop: false }`
[INFO] [stdout] 7a106546633d51d18f3079765c444541aa8eb6aecc07f8c2f0bb68fcc9edbc78