[INFO] cloning repository https://github.com/sarailQAQ/rudis
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sarailQAQ/rudis" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsarailQAQ%2Frudis", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsarailQAQ%2Frudis'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e2285c85cc260e5e5d4ce2f78b260e22ca9ab51f
[INFO] checking sarailQAQ/rudis against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FsarailQAQ%2Frudis" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/sarailQAQ/rudis
[INFO] removed 0 missing examples
[INFO] finished tweaking git repo https://github.com/sarailQAQ/rudis
[INFO] tweaked toml for git repo https://github.com/sarailQAQ/rudis written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/sarailQAQ/rudis on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/sarailQAQ/rudis 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-width v0.1.12
[INFO] [stderr]   Downloaded cc v1.0.96
[INFO] [stderr]   Downloaded libc v0.2.154
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] [stdout] 4ade5181962973a41e71c6caa55f4377191a4ae161b408674adadf49d5939e79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e9d09d4db1a5dee1d37f5cff88e339b1d56ca007f9b3f40b53807769ffc7af80
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[INFO] [stderr]    Compiling proc-macro2 v1.0.81
[INFO] [stderr]    Compiling libc v0.2.154
[INFO] [stderr]    Compiling autocfg v1.2.0
[INFO] [stderr]    Compiling syn v1.0.109
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[INFO] [stderr]    Compiling unicode-segmentation v1.11.0
[INFO] [stderr]     Checking tracing-core v0.1.32
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking bytes v1.6.0
[INFO] [stderr]     Checking overload v0.1.1
[INFO] [stderr]     Checking thread_local v1.1.8
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[INFO] [stderr]     Checking nu-ansi-term v0.46.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking tracing-log v0.2.0
[INFO] [stderr]    Compiling heck v0.3.3
[INFO] [stderr]     Checking parking_lot_core v0.9.10
[INFO] [stderr]     Checking num_cpus v1.16.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.8.11
[INFO] [stderr]     Checking signal-hook-registry v1.4.2
[INFO] [stderr]     Checking socket2 v0.5.7
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[INFO] [stderr]     Checking tracing-subscriber v0.3.18
[INFO] [stderr]     Checking parking_lot v0.12.2
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.60
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking atoi v2.0.0
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.18
[INFO] [stderr]    Compiling tokio-macros v2.2.0
[INFO] [stderr]    Compiling tracing-attributes v0.1.27
[INFO] [stderr]     Checking tokio v1.37.0
[INFO] [stderr]     Checking structopt v0.3.26
[INFO] [stderr]     Checking tracing v0.1.40
[INFO] [stderr]     Checking tokio-stream v0.1.15
[INFO] [stderr]     Checking rudis v0.0.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `buf`
[INFO] [stdout]  --> src/connection.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bytes::{BytesMut, buf, Buf};
[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 import: `ParseError`
[INFO] [stdout]  --> src/cmd/set.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::parse::{Parse, ParseError};
[INFO] [stdout]   |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::var`
[INFO] [stdout]  --> src/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::var;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpSocket`
[INFO] [stdout]  --> src/client.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::net::{TcpSocket, TcpStream, ToSocketAddrs};
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Utf8Error`
[INFO] [stdout]  --> src/parse.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::Utf8Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug` and `error`
[INFO] [stdout]  --> src/parse.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tracing::{debug, error};
[INFO] [stdout]   |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParseError` and `Parse`
[INFO] [stdout]  --> src/lib.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | use parse::{Parse, ParseError};
[INFO] [stdout]   |             ^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Result`
[INFO] [stdout]   --> src/db.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::Result;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Frame`
[INFO] [stdout]  --> src/server.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::{Command, Connection, Frame};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `buf`
[INFO] [stdout]  --> src/connection.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | use bytes::{BytesMut, buf, Buf};
[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 import: `ParseError`
[INFO] [stdout]  --> src/cmd/set.rs:6:27
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::parse::{Parse, ParseError};
[INFO] [stdout]   |                           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::env::var`
[INFO] [stdout]  --> src/client.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::var;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `TcpSocket`
[INFO] [stdout]  --> src/client.rs:5:18
[INFO] [stdout]   |
[INFO] [stdout] 5 | use tokio::net::{TcpSocket, TcpStream, ToSocketAddrs};
[INFO] [stdout]   |                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::str::Utf8Error`
[INFO] [stdout]  --> src/parse.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::str::Utf8Error;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug` and `error`
[INFO] [stdout]  --> src/parse.rs:4:15
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tracing::{debug, error};
[INFO] [stdout]   |               ^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ParseError` and `Parse`
[INFO] [stdout]  --> src/lib.rs:9:13
[INFO] [stdout]   |
[INFO] [stdout] 9 | use parse::{Parse, ParseError};
[INFO] [stdout]   |             ^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::Result`
[INFO] [stdout]   --> src/db.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use crate::Result;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Frame`
[INFO] [stdout]  --> src/server.rs:8:34
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::{Command, Connection, Frame};
[INFO] [stdout]   |                                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_stream::StreamExt`
[INFO] [stdout]  --> src/db.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio_stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio_stream::StreamExt`
[INFO] [stdout]  --> src/db.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio_stream::StreamExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shutdown`
[INFO] [stdout]   --> src/cmd/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         shutdown: &mut Shutdown,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_name` is never used
[INFO] [stdout]   --> src/cmd/mod.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Command {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub(crate) fn get_name(&self) -> &str {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `channel` and `message` are never read
[INFO] [stdout]  --> src/cmd/publish.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Publish {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 5 |     /// Name of the channel on which the message should be published.
[INFO] [stdout] 6 |     channel: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     message: Bytes,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Publish` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `channels` is never read
[INFO] [stdout]   --> src/cmd/subscribe.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Subscribe {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     channels: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Subscribe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `channels` is never read
[INFO] [stdout]   --> src/cmd/subscribe.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Unsubscribe {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 19 |     channels: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Unsubscribe` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_name` is never used
[INFO] [stdout]   --> src/cmd/unknown.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Unknown {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub(crate) fn get_name(&self) -> &str {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `client` and `subscribed_channels` are never read
[INFO] [stdout]   --> src/client.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Subscriber {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 34 |     /// The subscribed client.
[INFO] [stdout] 35 |     client: Client,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     subscribed_channels: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pub_sub` is never read
[INFO] [stdout]   --> src/db.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub_sub: HashMap<String, broadcast::Sender<Bytes>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `shutdown`
[INFO] [stdout]   --> src/cmd/mod.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 57 |         shutdown: &mut Shutdown,
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_shutdown`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_name` is never used
[INFO] [stdout]   --> src/cmd/mod.rs:73:19
[INFO] [stdout]    |
[INFO] [stdout] 35 | impl Command {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 73 |     pub(crate) fn get_name(&self) -> &str {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `channel` and `message` are never read
[INFO] [stdout]  --> src/cmd/publish.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Publish {
[INFO] [stdout]   |            ------- fields in this struct
[INFO] [stdout] 5 |     /// Name of the channel on which the message should be published.
[INFO] [stdout] 6 |     channel: String,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 9 |     message: Bytes,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Publish` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `channels` is never read
[INFO] [stdout]   --> src/cmd/subscribe.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | pub struct Subscribe {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 10 |     channels: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Subscribe` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `channels` is never read
[INFO] [stdout]   --> src/cmd/subscribe.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 18 | pub struct Unsubscribe {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 19 |     channels: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Unsubscribe` has derived impls for the traits `Debug` and `Clone`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_name` is never used
[INFO] [stdout]   --> src/cmd/unknown.rs:17:19
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Unknown {
[INFO] [stdout]    | ------------ method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 17 |     pub(crate) fn get_name(&self) -> &str {
[INFO] [stdout]    |                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `client` and `subscribed_channels` are never read
[INFO] [stdout]   --> src/client.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 33 | pub struct Subscriber {
[INFO] [stdout]    |            ---------- fields in this struct
[INFO] [stdout] 34 |     /// The subscribed client.
[INFO] [stdout] 35 |     client: Client,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 38 |     subscribed_channels: Vec<String>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `pub_sub` is never read
[INFO] [stdout]   --> src/db.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 34 | struct State {
[INFO] [stdout]    |        ----- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 37 |     pub_sub: HashMap<String, broadcast::Sender<Bytes>>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `State` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `manager`
[INFO] [stdout]   --> src/bin/client.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let manager = tokio::spawn(async move {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/echo-server-copy.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let (mut socket, _) = listener.accept().await?;
[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: `socket`
[INFO] [stdout]  --> src/bin/echo-server-copy.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let (mut socket, _) = listener.accept().await?;
[INFO] [stdout]   |              ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/bin/echo-server-copy.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let (mut socket, _) = listener.accept().await?;
[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: `socket`
[INFO] [stdout]  --> src/bin/echo-server-copy.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |         let (mut socket, _) = listener.accept().await?;
[INFO] [stdout]   |              ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_socket`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `manager`
[INFO] [stdout]   --> src/bin/client.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let manager = tokio::spawn(async move {
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_manager`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 17.42s
[INFO] running `Command { std: "docker" "inspect" "e9d09d4db1a5dee1d37f5cff88e339b1d56ca007f9b3f40b53807769ffc7af80", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e9d09d4db1a5dee1d37f5cff88e339b1d56ca007f9b3f40b53807769ffc7af80", kill_on_drop: false }`
[INFO] [stdout] e9d09d4db1a5dee1d37f5cff88e339b1d56ca007f9b3f40b53807769ffc7af80
