[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 master#4eb62535fc12dd1a63fd43a4173e224e79313c4d for pr-158816
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTonyce%2Fmds" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/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-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Tonyce/mds on toolchain 4eb62535fc12dd1a63fd43a4173e224e79313c4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "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" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-macros v1.1.0
[INFO] [stderr]   Downloaded tokio-util v0.6.6
[INFO] [stderr]   Downloaded proc-macro2 v1.0.26
[INFO] [stderr]   Downloaded futures-sink v0.3.14
[INFO] [stderr]   Downloaded http-body v0.4.1
[INFO] [stderr]   Downloaded hermit-abi v0.1.18
[INFO] [stderr]   Downloaded instant v0.1.9
[INFO] [stderr]   Downloaded fixedbitset v0.2.0
[INFO] [stderr]   Downloaded tower-service v0.3.1
[INFO] [stderr]   Downloaded futures-io v0.3.14
[INFO] [stderr]   Downloaded proc-macro-nested v0.1.7
[INFO] [stderr]   Downloaded futures-task v0.3.14
[INFO] [stderr]   Downloaded futures-core v0.3.14
[INFO] [stderr]   Downloaded which v4.1.0
[INFO] [stderr]   Downloaded either v1.6.1
[INFO] [stderr]   Downloaded prost-derive v0.7.0
[INFO] [stderr]   Downloaded rand_hc v0.3.0
[INFO] [stderr]   Downloaded futures-macro v0.3.14
[INFO] [stderr]   Downloaded futures-executor v0.3.14
[INFO] [stderr]   Downloaded parking_lot_core v0.8.3
[INFO] [stderr]   Downloaded memchr v2.3.4
[INFO] [stderr]   Downloaded lock_api v0.4.3
[INFO] [stderr]   Downloaded miow v0.3.7
[INFO] [stderr]   Downloaded signal-hook-registry v1.3.0
[INFO] [stderr]   Downloaded redox_syscall v0.2.6
[INFO] [stderr]   Downloaded once_cell v1.7.2
[INFO] [stderr]   Downloaded rand_core v0.6.2
[INFO] [stderr]   Downloaded pin-project-lite v0.2.6
[INFO] [stderr]   Downloaded getrandom v0.2.2
[INFO] [stderr]   Downloaded rand_chacha v0.3.0
[INFO] [stderr]   Downloaded rustc-demangle v0.1.18
[INFO] [stderr]   Downloaded addr2line v0.14.1
[INFO] [stderr]   Downloaded futures-channel v0.3.14
[INFO] [stderr]   Downloaded parking_lot v0.11.1
[INFO] [stderr]   Downloaded bytes v1.0.1
[INFO] [stderr]   Downloaded pin-project-internal v1.0.7
[INFO] [stderr]   Downloaded tokio-stream v0.1.5
[INFO] [stderr]   Downloaded prost v0.7.0
[INFO] [stderr]   Downloaded anyhow v1.0.40
[INFO] [stderr]   Downloaded socket2 v0.4.0
[INFO] [stderr]   Downloaded httparse v1.4.0
[INFO] [stderr]   Downloaded serde_derive v1.0.125
[INFO] [stderr]   Downloaded prost-types v0.7.0
[INFO] [stderr]   Downloaded futures v0.3.14
[INFO] [stderr]   Downloaded heck v0.3.2
[INFO] [stderr]   Downloaded pin-project v1.0.7
[INFO] [stderr]   Downloaded serde v1.0.125
[INFO] [stderr]   Downloaded backtrace v0.3.56
[INFO] [stderr]   Downloaded tracing v0.1.25
[INFO] [stderr]   Downloaded mio v0.7.11
[INFO] [stderr]   Downloaded rand v0.8.3
[INFO] [stderr]   Downloaded itertools v0.9.0
[INFO] [stderr]   Downloaded http v0.2.4
[INFO] [stderr]   Downloaded ntapi v0.3.6
[INFO] [stderr]   Downloaded petgraph v0.5.1
[INFO] [stderr]   Downloaded hyper v0.14.5
[INFO] [stderr]   Downloaded h2 v0.3.2
[INFO] [stderr]   Downloaded futures-util v0.3.14
[INFO] [stderr]   Downloaded syn v1.0.69
[INFO] [stderr]   Downloaded object v0.23.0
[INFO] [stderr]   Downloaded tokio v1.5.0
[INFO] [stderr]   Downloaded libc v0.2.93
[INFO] [stderr]   Downloaded gimli v0.23.0
[INFO] [stderr]   Downloaded prost-build v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3d5ced03c013a94a2f102a4510f48a6e9184255caf5fd8244f58017bde7f5210" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d
[INFO] running `Command { std: "docker" "start" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d" "/opt/rustwide/cargo-home/bin/cargo" "+4eb62535fc12dd1a63fd43a4173e224e79313c4d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling libc v0.2.93
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[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]    Compiling log v0.4.14
[INFO] [stderr]     Checking futures-core v0.3.14
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking smallvec v1.6.1
[INFO] [stderr]     Checking futures-sink v0.3.14
[INFO] [stderr]    Compiling proc-macro-nested v0.1.7
[INFO] [stderr]    Compiling miniz_oxide v0.4.4
[INFO] [stderr]     Checking instant v0.1.9
[INFO] [stderr]     Checking lock_api v0.4.3
[INFO] [stderr]    Compiling tokio v1.5.0
[INFO] [stderr]     Checking slab v0.4.2
[INFO] [stderr]     Checking futures-io v0.3.14
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]     Checking futures-channel v0.3.14
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling anyhow v1.0.40
[INFO] [stderr]     Checking futures-task v0.3.14
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]     Checking itoa v0.4.7
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling object v0.23.0
[INFO] [stderr]    Compiling serde_derive v1.0.125
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]     Checking tracing-core v0.1.17
[INFO] [stderr]    Compiling serde v1.0.125
[INFO] [stderr]     Checking hashbrown v0.9.1
[INFO] [stderr]     Checking http v0.2.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling httparse v1.4.0
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]    Compiling itertools v0.9.0
[INFO] [stderr]     Checking tracing v0.1.25
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking parking_lot_core v0.8.3
[INFO] [stderr]     Checking mio v0.7.11
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking signal-hook-registry v1.3.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking try-lock v0.2.3
[INFO] [stderr]     Checking want v0.3.0
[INFO] [stderr]     Checking socket2 v0.4.0
[INFO] [stderr]     Checking httpdate v0.3.2
[INFO] [stderr]     Checking tower-service v0.3.1
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking addr2line v0.14.1
[INFO] [stderr]     Checking backtrace v0.3.56
[INFO] [stderr]     Checking http-body v0.4.1
[INFO] [stderr]    Compiling tokio-macros v1.1.0
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling pin-project-internal v1.0.7
[INFO] [stderr]    Compiling prost-derive v0.7.0
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking pin-project v1.0.7
[INFO] [stderr]     Checking prost v0.7.0
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking tokio-util v0.6.6
[INFO] [stderr]     Checking tokio-stream v0.1.5
[INFO] [stderr]     Checking h2 v0.3.2
[INFO] [stderr]     Checking hyper v0.14.5
[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: 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 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] [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 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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 27.41s
[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] running `Command { std: "docker" "inspect" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d", kill_on_drop: false }`
[INFO] [stdout] 06417550098b7481f8c08b9967fc87220798e8f63cf47322e7c81e3a677fd35d
