[INFO] cloning repository https://github.com/yinho999/my-redis-tokio [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/yinho999/my-redis-tokio" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyinho999%2Fmy-redis-tokio", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyinho999%2Fmy-redis-tokio'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 25a41f1f13ae8a645c23e9ea2a5cc46d9e6b2d06 [INFO] checking yinho999/my-redis-tokio against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fyinho999%2Fmy-redis-tokio" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'... [INFO] [stderr] done. 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2d28193f24dc800d61fdd2118e3ba65b77d903cdea5e1712bdafb2233f397656 [INFO] running `Command { std: "docker" "start" "-a" "2d28193f24dc800d61fdd2118e3ba65b77d903cdea5e1712bdafb2233f397656", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "2d28193f24dc800d61fdd2118e3ba65b77d903cdea5e1712bdafb2233f397656", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "2d28193f24dc800d61fdd2118e3ba65b77d903cdea5e1712bdafb2233f397656", kill_on_drop: false }` [INFO] [stdout] 2d28193f24dc800d61fdd2118e3ba65b77d903cdea5e1712bdafb2233f397656 [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" 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[stdout] warning: unused import: `BytesMut` [INFO] [stdout] --> src/connection_vec_u8.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use bytes::{BufMut, BytesMut}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BytesMut` [INFO] [stdout] --> src/connection_vec_u8.rs:2:21 [INFO] [stdout] | [INFO] [stdout] 2 | use bytes::{BufMut, BytesMut}; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Connection` is never constructed [INFO] [stdout] --> src/connection_bytes.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Connection { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Connection` is never constructed [INFO] [stdout] --> src/connection_bytes.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 9 | pub struct Connection { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `read_frame`, `parse_frame`, `write_frame`, and `write_decimal` are never used [INFO] [stdout] --> src/connection_bytes.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Connection { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 16 | pub fn new(stream: TcpStream) -> Connection { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub async fn read_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn parse_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | async fn write_frame(&mut self, frame: &Frame) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | async fn write_decimal(&mut self, val: u64) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `read_frame`, `parse_frame`, `write_frame`, and `write_decimal` are never used [INFO] [stdout] --> src/connection_bytes.rs:16:12 [INFO] [stdout] | [INFO] [stdout] 15 | impl Connection { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 16 | pub fn new(stream: TcpStream) -> Connection { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 22 | pub async fn read_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 40 | fn parse_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 72 | async fn write_frame(&mut self, frame: &Frame) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 111 | async fn write_decimal(&mut self, val: u64) -> Result<()> { [INFO] [stdout] | ^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Connection` is never constructed [INFO] [stdout] --> src/connection_vec_u8.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Connection { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Connection` is never constructed [INFO] [stdout] --> src/connection_vec_u8.rs:8:12 [INFO] [stdout] | [INFO] [stdout] 8 | pub struct Connection { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `read_frame`, and `parse_frame` are never used [INFO] [stdout] --> src/connection_vec_u8.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Connection { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 15 | pub fn new(stream: TcpStream) -> Connection { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub async fn read_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn parse_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `read_frame`, and `parse_frame` are never used [INFO] [stdout] --> src/connection_vec_u8.rs:15:12 [INFO] [stdout] | [INFO] [stdout] 14 | impl Connection { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 15 | pub fn new(stream: TcpStream) -> Connection { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 23 | pub async fn read_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 53 | fn parse_frame(&mut self) -> Result> { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 5 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> src/bin/echo-server-split.rs:2:17 [INFO] [stdout] | [INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `race` is never used [INFO] [stdout] --> src/bin/select-borrow.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | async fn race( [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-loop-modifying-a-branch.rs:15:10 [INFO] [stdout] | [INFO] [stdout] 15 | let (mut tx, mut rx) = tokio::sync::mpsc::channel(128); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-loop-modifying-a-branch.rs:15:10 [INFO] [stdout] | [INFO] [stdout] 15 | let (mut tx, mut rx) = tokio::sync::mpsc::channel(128); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `connection` [INFO] [stdout] --> src/bin/select-syntax-server.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-syntax-server.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-pattern-matching.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | let (mut tx1, mut rx1): (tokio::sync::mpsc::Sender>, tokio::sync::mpsc::Receiver>) = mpsc::channel(128); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-pattern-matching.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | let (mut tx2, mut rx2): (tokio::sync::mpsc::Sender>, tokio::sync::mpsc::Receiver>) = mpsc::channel(128); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/server.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 38 | / loop { [INFO] [stdout] 39 | | // The first item contains the socket and address of the new connection. [INFO] [stdout] 40 | | // The second item contains the IP and port of the new connection. [INFO] [stdout] 41 | | let (socket, _) = listener.accept().await?; [INFO] [stdout] ... | [INFO] [stdout] 53 | | }); [INFO] [stdout] 54 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 55 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-loop-resume.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | let (mut tx, mut rx) = tokio::sync::mpsc::channel(128); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-pattern-matching.rs:5:10 [INFO] [stdout] | [INFO] [stdout] 5 | let (mut tx1, mut rx1): (tokio::sync::mpsc::Sender>, tokio::sync::mpsc::Receiver>) = mpsc::channel(128); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-pattern-matching.rs:6:10 [INFO] [stdout] | [INFO] [stdout] 6 | let (mut tx2, mut rx2): (tokio::sync::mpsc::Sender>, tokio::sync::mpsc::Receiver>) = mpsc::channel(128); [INFO] [stdout] | ----^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/select-syntax-server.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 23 | / loop { [INFO] [stdout] 24 | | let (socket, _) = listener.accept().await?; [INFO] [stdout] 25 | | tokio::spawn(async move { process(socket).await }); [INFO] [stdout] 26 | | } [INFO] [stdout] | |_____________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 29 | Ok::<_, io::Error>(()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `ShardedDb` is never used [INFO] [stdout] --> src/bin/server.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | type ShardedDb = Arc>>>; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `new_sharded_db` is never used [INFO] [stdout] --> src/bin/server.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn new_sharded_db(n: usize) -> ShardedDb { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-syntax-server.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut listener = TcpListener::bind("localhost:3465").await?; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-loop-resume.rs:7:10 [INFO] [stdout] | [INFO] [stdout] 7 | let (mut tx, mut rx) = tokio::sync::mpsc::channel(128); [INFO] [stdout] | ----^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/bin/select-syntax-client.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `race` is never used [INFO] [stdout] --> src/bin/select-borrow.rs:10:10 [INFO] [stdout] | [INFO] [stdout] 10 | async fn race( [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `connection` [INFO] [stdout] --> src/bin/select-error.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-error.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/select-error.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 15 | / loop { [INFO] [stdout] 16 | | // This Result will propagated to the res [INFO] [stdout] 17 | | let (socket, _) = listener.accept().await?; [INFO] [stdout] 18 | | tokio::spawn(async move { process(socket).await }); [INFO] [stdout] 19 | | } [INFO] [stdout] | |_____________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 23 | Ok::<_, io::Error>(()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `connection` [INFO] [stdout] --> src/bin/select-syntax-server.rs:42:13 [INFO] [stdout] | [INFO] [stdout] 42 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/server.rs:55:5 [INFO] [stdout] | [INFO] [stdout] 38 | / loop { [INFO] [stdout] 39 | | // The first item contains the socket and address of the new connection. [INFO] [stdout] 40 | | // The second item contains the IP and port of the new connection. [INFO] [stdout] 41 | | let (socket, _) = listener.accept().await?; [INFO] [stdout] ... | [INFO] [stdout] 53 | | }); [INFO] [stdout] 54 | | } [INFO] [stdout] | |_____- any code following this expression is unreachable [INFO] [stdout] 55 | Ok(()) [INFO] [stdout] | ^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-syntax-server.rs:42:9 [INFO] [stdout] | [INFO] [stdout] 42 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/select-syntax-server.rs:29:13 [INFO] [stdout] | [INFO] [stdout] 23 | / loop { [INFO] [stdout] 24 | | let (socket, _) = listener.accept().await?; [INFO] [stdout] 25 | | tokio::spawn(async move { process(socket).await }); [INFO] [stdout] 26 | | } [INFO] [stdout] | |_____________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 29 | Ok::<_, io::Error>(()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: type alias `ShardedDb` is never used [INFO] [stdout] --> src/bin/server.rs:8:6 [INFO] [stdout] | [INFO] [stdout] 8 | type ShardedDb = Arc>>>; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `new_sharded_db` is never used [INFO] [stdout] --> src/bin/server.rs:11:4 [INFO] [stdout] | [INFO] [stdout] 11 | fn new_sharded_db(n: usize) -> ShardedDb { [INFO] [stdout] | ^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-syntax-server.rs:13:9 [INFO] [stdout] | [INFO] [stdout] 13 | let mut listener = TcpListener::bind("localhost:3465").await?; [INFO] [stdout] | ----^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::io` [INFO] [stdout] --> src/bin/select-syntax-client.rs:1:5 [INFO] [stdout] | [INFO] [stdout] 1 | use std::io; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `AsyncReadExt` and `AsyncWriteExt` [INFO] [stdout] --> src/bin/echo-server-split.rs:2:17 [INFO] [stdout] | [INFO] [stdout] 2 | use tokio::io::{AsyncReadExt, AsyncWriteExt}; [INFO] [stdout] | ^^^^^^^^^^^^ ^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `connection` [INFO] [stdout] --> src/bin/select-error.rs:39:13 [INFO] [stdout] | [INFO] [stdout] 39 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/bin/select-error.rs:39:9 [INFO] [stdout] | [INFO] [stdout] 39 | let mut connection = mini_redis::Connection::new(socket); [INFO] [stdout] | ----^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unreachable expression [INFO] [stdout] --> src/bin/select-error.rs:23:13 [INFO] [stdout] | [INFO] [stdout] 15 | / loop { [INFO] [stdout] 16 | | // This Result will propagated to the res [INFO] [stdout] 17 | | let (socket, _) = listener.accept().await?; [INFO] [stdout] 18 | | tokio::spawn(async move { process(socket).await }); [INFO] [stdout] 19 | | } [INFO] [stdout] | |_____________- any code following this expression is unreachable [INFO] [stdout] ... [INFO] [stdout] 23 | Ok::<_, io::Error>(()) [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^ unreachable expression [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 8.41s [INFO] running `Command { std: "docker" "inspect" "14dc82738342d2adc0d42f81fed8ca900e6220872e04c9e8255f17a68b5e0a69", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14dc82738342d2adc0d42f81fed8ca900e6220872e04c9e8255f17a68b5e0a69", kill_on_drop: false }` [INFO] [stdout] 14dc82738342d2adc0d42f81fed8ca900e6220872e04c9e8255f17a68b5e0a69