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[INFO] [stderr] Downloaded atoi v0.3.3 [INFO] [stderr] Downloaded mini-redis v0.4.1 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] eff23729404490b0b8807bd9e02eaaf6cb656d2f88af7308df89fc7df83f1017 [INFO] running `Command { std: "docker" "start" "-a" "eff23729404490b0b8807bd9e02eaaf6cb656d2f88af7308df89fc7df83f1017", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "eff23729404490b0b8807bd9e02eaaf6cb656d2f88af7308df89fc7df83f1017", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "eff23729404490b0b8807bd9e02eaaf6cb656d2f88af7308df89fc7df83f1017", kill_on_drop: false }` [INFO] [stdout] eff23729404490b0b8807bd9e02eaaf6cb656d2f88af7308df89fc7df83f1017 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+f5e2df741b4a9820a7579f0c8eccc951706a8782" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] f19f49e39ade01d53608652b9e42c874d0347d2567544a68019a05553a690f81 [INFO] running `Command { std: "docker" "start" "-a" "f19f49e39ade01d53608652b9e42c874d0347d2567544a68019a05553a690f81", kill_on_drop: false }` [INFO] [stderr] Compiling proc-macro2 v1.0.70 [INFO] [stderr] Compiling libc v0.2.150 [INFO] [stderr] Compiling num-traits v0.2.17 [INFO] [stderr] Checking smallvec v1.11.2 [INFO] [stderr] Compiling serde v1.0.193 [INFO] [stderr] Checking tracing-core v0.1.32 [INFO] [stderr] Compiling futures-channel v0.3.29 [INFO] [stderr] Compiling serde_json v1.0.108 [INFO] [stderr] Checking futures-sink v0.3.29 [INFO] [stderr] Checking regex-automata v0.4.3 [INFO] [stderr] Checking textwrap v0.11.0 [INFO] [stderr] Compiling crossbeam-queue v0.3.8 [INFO] [stderr] Checking iana-time-zone v0.1.58 [INFO] [stderr] Checking crossbeam-epoch v0.9.15 [INFO] [stderr] Checking matchers v0.0.1 [INFO] [stderr] Checking deranged v0.3.10 [INFO] [stderr] Checking crossbeam-channel v0.5.8 [INFO] [stderr] Checking crossbeam-deque v0.8.3 [INFO] [stderr] Compiling quote v1.0.33 [INFO] [stderr] Checking tracing-log v0.1.4 [INFO] [stderr] Compiling syn v2.0.39 [INFO] [stderr] Compiling syn v1.0.109 [INFO] [stderr] Checking time v0.3.30 [INFO] [stderr] Compiling proc-macro-error-attr v1.0.4 [INFO] [stderr] Checking crossbeam v0.8.2 [INFO] [stderr] Checking parking_lot_core v0.9.9 [INFO] [stderr] Checking socket2 v0.5.5 [INFO] [stderr] Checking signal-hook-registry v1.4.1 [INFO] [stderr] Checking mio v0.8.9 [INFO] [stderr] Checking atty v0.2.14 [INFO] [stderr] Checking num_cpus v1.16.0 [INFO] [stderr] Checking regex v1.10.2 [INFO] [stderr] Checking clap v2.34.0 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking chrono v0.4.31 [INFO] [stderr] Checking atoi v0.3.3 [INFO] [stderr] Compiling proc-macro-error v1.0.4 [INFO] [stderr] Checking tracing-serde v0.1.3 [INFO] [stderr] Compiling structopt-derive v0.4.18 [INFO] [stderr] Checking structopt v0.3.26 [INFO] [stderr] Compiling tracing-attributes v0.1.27 [INFO] [stderr] Compiling futures-macro v0.3.29 [INFO] [stderr] Compiling pin-project-internal v1.1.3 [INFO] [stderr] Compiling tokio-macros v2.2.0 [INFO] [stderr] Compiling async-stream-impl v0.3.5 [INFO] [stderr] Checking async-stream v0.3.5 [INFO] [stderr] Checking tokio v1.34.0 [INFO] [stderr] Checking futures-util v0.3.29 [INFO] [stderr] Checking pin-project v1.1.3 [INFO] [stderr] Checking tracing v0.1.40 [INFO] [stderr] Checking tracing-subscriber v0.2.25 [INFO] [stderr] Checking tracing-futures v0.2.5 [INFO] [stderr] Checking futures-executor v0.3.29 [INFO] [stderr] Checking futures v0.3.29 [INFO] [stderr] Checking tokio-stream v0.1.14 [INFO] [stderr] Checking mini-redis v0.4.1 [INFO] [stderr] Checking my-redis v0.1.0 (/opt/rustwide/workdir) [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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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: 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: 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)]` (part of `#[warn(unused)]`) 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: 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: 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)]` (part of `#[warn(unused)]`) 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)]` (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/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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Delay` is never constructed [INFO] [stdout] --> src/bin/mini-tokio.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | struct Delay { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default [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)]` (part of `#[warn(unused)]`) 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)]` (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/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: unused variable: `connection` [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] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) 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)]` (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/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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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: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)]` (part of `#[warn(unused)]`) on by default [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)]` (part of `#[warn(unused)]`) 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)]` (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/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: unused variable: `connection` [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] | ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection` [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/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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `connection` [INFO] [stdout] --> src/bin/select-error.rs:39:9 [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)]` (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/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)]` (part of `#[warn(unused)]`) on by default [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)]` (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/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)]` (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/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)]` (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/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: 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)]` (part of `#[warn(unused)]`) 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-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)]` (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/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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Delay` is never constructed [INFO] [stdout] --> src/bin/mini-tokio.rs:27:8 [INFO] [stdout] | [INFO] [stdout] 27 | struct Delay { [INFO] [stdout] | ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) 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)]` (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/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)]` (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/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: 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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `connection` [INFO] [stdout] --> src/bin/select-error.rs:39:9 [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)]` (part of `#[warn(unused)]`) on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 19.41s [INFO] running `Command { std: "docker" "inspect" "f19f49e39ade01d53608652b9e42c874d0347d2567544a68019a05553a690f81", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "f19f49e39ade01d53608652b9e42c874d0347d2567544a68019a05553a690f81", kill_on_drop: false }` [INFO] [stdout] f19f49e39ade01d53608652b9e42c874d0347d2567544a68019a05553a690f81