[INFO] cloning repository https://github.com/Tonyce/mds
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Tonyce/mds" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyce%2Fmds", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyce%2Fmds'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 275e23c2a1045b26405b5e4c5e41966c54e1fb4f
[INFO] checking Tonyce/mds against try#b1f2594eac607c1f051534800237eeedb5590a49 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyce%2Fmds" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Tonyce/mds
[INFO] finished tweaking git repo https://github.com/Tonyce/mds
[INFO] tweaked toml for git repo https://github.com/Tonyce/mds written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tonyce/mds on toolchain b1f2594eac607c1f051534800237eeedb5590a49
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Tonyce/mds 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" "+b1f2594eac607c1f051534800237eeedb5590a49" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 75981b2a5b3a709e298937df481718507734d8b2938eb748e17f2d5cc2472d7c
[INFO] running `Command { std: "docker" "start" "-a" "75981b2a5b3a709e298937df481718507734d8b2938eb748e17f2d5cc2472d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75981b2a5b3a709e298937df481718507734d8b2938eb748e17f2d5cc2472d7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75981b2a5b3a709e298937df481718507734d8b2938eb748e17f2d5cc2472d7c", kill_on_drop: false }`
[INFO] [stdout] 75981b2a5b3a709e298937df481718507734d8b2938eb748e17f2d5cc2472d7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+b1f2594eac607c1f051534800237eeedb5590a49" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc7fb440cc5422c7d182fa80bae46ed7c4b04d78f5065f948ccceab7257bc06b
[INFO] running `Command { std: "docker" "start" "-a" "dc7fb440cc5422c7d182fa80bae46ed7c4b04d78f5065f948ccceab7257bc06b", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.69
[INFO] [stderr]     Checking pin-project-lite v0.2.6
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]     Checking bytes v1.0.1
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[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling object v0.23.0
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[INFO] [stderr]     Checking mds v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `make_service_fn` and `service_fn`
[INFO] [stdout]  --> src/http/server.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hyper::service::{make_service_fn, service_fn};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Client`, `HeaderMap`, and `Version`
[INFO] [stdout]  --> src/http/server.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | use hyper::{Body, Client, HeaderMap, Request, Response, Server, Version};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]  --> src/http/server.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::Infallible`
[INFO] [stdout]  --> src/http/server.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::convert::Infallible;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> src/http/server.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tx`
[INFO] [stdout]  --> src/tcp/peer.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::state::{Rx, Shared, Tx};
[INFO] [stdout]   |                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buf`
[INFO] [stdout]  --> src/tcp/protocol.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bytes::{Buf, BufMut, BytesMut};
[INFO] [stdout]   |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::SinkExt`
[INFO] [stdout]  --> src/tcp/protocol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::SinkExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error::Error`, `fmt`, and `fs`
[INFO] [stdout]  --> src/tcp/protocol.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{error::Error, fmt, fs, io, usize};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt`
[INFO] [stdout]  --> src/tcp/protocol.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::UnixListener`
[INFO] [stdout]  --> src/tcp/protocol.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::net::UnixListener;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::signal`
[INFO] [stdout]  --> src/tcp/protocol.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::signal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_stream::StreamExt`
[INFO] [stdout]  --> src/tcp/protocol.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio_stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `make_service_fn` and `service_fn`
[INFO] [stdout]  --> src/http/server.rs:6:22
[INFO] [stdout]   |
[INFO] [stdout] 6 | use hyper::service::{make_service_fn, service_fn};
[INFO] [stdout]   |                      ^^^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Client`, `HeaderMap`, and `Version`
[INFO] [stdout]  --> src/http/server.rs:7:19
[INFO] [stdout]   |
[INFO] [stdout] 7 | use hyper::{Body, Client, HeaderMap, Request, Response, Server, Version};
[INFO] [stdout]   |                   ^^^^^^  ^^^^^^^^^                             ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Serialize`
[INFO] [stdout]  --> src/http/server.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 | use serde::{Deserialize, Serialize};
[INFO] [stdout]   |                          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::Infallible`
[INFO] [stdout]  --> src/http/server.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::convert::Infallible;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::sync::Mutex`
[INFO] [stdout]   --> src/http/server.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use tokio::sync::Mutex;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Tx`
[INFO] [stdout]  --> src/tcp/peer.rs:1:32
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::state::{Rx, Shared, Tx};
[INFO] [stdout]   |                                ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Buf`
[INFO] [stdout]  --> src/tcp/protocol.rs:2:13
[INFO] [stdout]   |
[INFO] [stdout] 2 | use bytes::{Buf, BufMut, BytesMut};
[INFO] [stdout]   |             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::SinkExt`
[INFO] [stdout]  --> src/tcp/protocol.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use futures::SinkExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `error::Error`, `fmt`, and `fs`
[INFO] [stdout]  --> src/tcp/protocol.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::{error::Error, fmt, fs, io, usize};
[INFO] [stdout]   |           ^^^^^^^^^^^^  ^^^  ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt`
[INFO] [stdout]  --> src/tcp/protocol.rs:6:17
[INFO] [stdout]   |
[INFO] [stdout] 6 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                 ^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::UnixListener`
[INFO] [stdout]  --> src/tcp/protocol.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::net::UnixListener;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::signal`
[INFO] [stdout]  --> src/tcp/protocol.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::signal;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_stream::StreamExt`
[INFO] [stdout]  --> src/tcp/protocol.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio_stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp/server.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut transport = Framed::new(stream, Protocol);
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp/server.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut state = state.write().await;
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp/server.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut transport = Framed::new(stream, Protocol);
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/tcp/server.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut state = state.write().await;
[INFO] [stdout]    |             ----^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prost::Message`
[INFO] [stdout]  --> src/tcp/protocol.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use prost::Message;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/http/server.rs:40:24
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn call(&mut self, mut req: Request<Body>) -> Self::Future {
[INFO] [stdout]    |                        ----^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req_version`
[INFO] [stdout]   --> src/http/server.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let req_version = req.version();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_req_version`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prost::Message`
[INFO] [stdout]  --> src/tcp/protocol.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use prost::Message;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/tcp/server.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut state = state.write().await;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/tcp/server.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 Some(Err(e)) => {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/http/server.rs:40:24
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn call(&mut self, mut req: Request<Body>) -> Self::Future {
[INFO] [stdout]    |                        ----^^^
[INFO] [stdout]    |                        |
[INFO] [stdout]    |                        help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `req_version`
[INFO] [stdout]   --> src/http/server.rs:41:13
[INFO] [stdout]    |
[INFO] [stdout] 41 |         let req_version = req.version();
[INFO] [stdout]    |             ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_req_version`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]   --> src/http/server.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct ReqBody {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReqBody` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `counter` is never read
[INFO] [stdout]   --> src/state.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Shared {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 12 |     pub peers: HashMap<SocketAddr, Tx>,
[INFO] [stdout] 13 |     pub counter: usize,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tcp/protocol.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Protocol {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/tcp/server.rs:68:13
[INFO] [stdout]    |
[INFO] [stdout] 68 |         let mut state = state.write().await;
[INFO] [stdout]    |             ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/tcp/server.rs:91:26
[INFO] [stdout]    |
[INFO] [stdout] 91 |                 Some(Err(e)) => {
[INFO] [stdout]    |                          ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `msg` is never read
[INFO] [stdout]   --> src/http/server.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | struct ReqBody {
[INFO] [stdout]    |        ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 24 |     msg: String,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ReqBody` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `counter` is never read
[INFO] [stdout]   --> src/state.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub struct Shared {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 12 |     pub peers: HashMap<SocketAddr, Tx>,
[INFO] [stdout] 13 |     pub counter: usize,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/tcp/protocol.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Protocol {
[INFO] [stdout]    | ------------- associated function in this implementation
[INFO] [stdout] 15 |     fn new() -> Self {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 25.90s
[INFO] running `Command { std: "docker" "inspect" "dc7fb440cc5422c7d182fa80bae46ed7c4b04d78f5065f948ccceab7257bc06b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc7fb440cc5422c7d182fa80bae46ed7c4b04d78f5065f948ccceab7257bc06b", kill_on_drop: false }`
[INFO] [stdout] dc7fb440cc5422c7d182fa80bae46ed7c4b04d78f5065f948ccceab7257bc06b
