[INFO] cloning repository https://github.com/suhanyujie/rs-web-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/suhanyujie/rs-web-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 027f59dbdb2bfca85788eb82247f4cbde8330f58
[INFO] checking suhanyujie/rs-web-server against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/suhanyujie/rs-web-server on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/suhanyujie/rs-web-server
[INFO] finished tweaking git repo https://github.com/suhanyujie/rs-web-server
[INFO] tweaked toml for git repo https://github.com/suhanyujie/rs-web-server written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/suhanyujie/rs-web-server already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ee733d6671ae2cf50021b9868ece2be1b496c75ec03dc85cf53993024601ca4a
[INFO] running `Command { std: "docker" "start" "-a" "ee733d6671ae2cf50021b9868ece2be1b496c75ec03dc85cf53993024601ca4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ee733d6671ae2cf50021b9868ece2be1b496c75ec03dc85cf53993024601ca4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ee733d6671ae2cf50021b9868ece2be1b496c75ec03dc85cf53993024601ca4a", kill_on_drop: false }`
[INFO] [stdout] ee733d6671ae2cf50021b9868ece2be1b496c75ec03dc85cf53993024601ca4a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 73f9da322fcb471922f4e794dd96ace89b2d89cc452c29357bcd78efe1a5048d
[INFO] running `Command { std: "docker" "start" "-a" "73f9da322fcb471922f4e794dd96ace89b2d89cc452c29357bcd78efe1a5048d", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking chrono v0.4.18
[INFO] [stderr]     Checking ctrlc v3.1.6
[INFO] [stderr]     Checking web-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::net::TcpStream`
[INFO] [stdout]  --> src/interface/irequest.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UserMessage`
[INFO] [stdout]  --> src/interface/irequest.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::znet::request::{UserConnection, UserMessage};
[INFO] [stdout]   |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/znet/server.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interface::imessage::IMessage`
[INFO] [stdout]  --> src/znet/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::interface::imessage::IMessage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interface::irequest::IRequest`
[INFO] [stdout]  --> src/znet/connection.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::interface::irequest::IRequest;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::thread_pool::lib::ThreadPool`
[INFO] [stdout]  --> src/znet/connection.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::thread_pool::lib::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::znet::message::Message`
[INFO] [stdout]  --> src/znet/connection.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::znet::message::Message;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Request`, `UserConnection`, `UserRequest`
[INFO] [stdout]  --> src/znet/connection.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::znet::request::{Request, UserConnection, UserMessage, UserRequest};
[INFO] [stdout]   |                            ^^^^^^^  ^^^^^^^^^^^^^^               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::sync_channel`
[INFO] [stdout]   --> src/znet/connection.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::mpsc::sync_channel;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/znet/connection.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/znet/connection.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Debug`
[INFO] [stdout]   --> src/znet/connection.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::{fmt::Debug, net::TcpStream};
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]   --> src/znet/connection.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fs,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interface::imessage::IMessage`
[INFO] [stdout]  --> src/znet/request.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::interface::imessage::IMessage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool/lib.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::TcpStream`
[INFO] [stdout]  --> src/interface/irequest.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UserMessage`
[INFO] [stdout]  --> src/interface/irequest.rs:6:44
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::znet::request::{UserConnection, UserMessage};
[INFO] [stdout]   |                                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/znet/server.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::thread::sleep;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interface::imessage::IMessage`
[INFO] [stdout]  --> src/znet/connection.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::interface::imessage::IMessage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interface::irequest::IRequest`
[INFO] [stdout]  --> src/znet/connection.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::interface::irequest::IRequest;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::thread_pool::lib::ThreadPool`
[INFO] [stdout]  --> src/znet/connection.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use crate::thread_pool::lib::ThreadPool;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::znet::message::Message`
[INFO] [stdout]  --> src/znet/connection.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::znet::message::Message;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Request`, `UserConnection`, `UserRequest`
[INFO] [stdout]  --> src/znet/connection.rs:9:28
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::znet::request::{Request, UserConnection, UserMessage, UserRequest};
[INFO] [stdout]   |                            ^^^^^^^  ^^^^^^^^^^^^^^               ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::mpsc::sync_channel`
[INFO] [stdout]   --> src/znet/connection.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::mpsc::sync_channel;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Mutex`
[INFO] [stdout]   --> src/znet/connection.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::sync::{Arc, Mutex};
[INFO] [stdout]    |                 ^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/znet/connection.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::thread;
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fmt::Debug`
[INFO] [stdout]   --> src/znet/connection.rs:16:11
[INFO] [stdout]    |
[INFO] [stdout] 16 | use std::{fmt::Debug, net::TcpStream};
[INFO] [stdout]    |           ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `fs`
[INFO] [stdout]   --> src/znet/connection.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 18 |     fs,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::interface::imessage::IMessage`
[INFO] [stdout]  --> src/znet/request.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::interface::imessage::IMessage;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/thread_pool/lib.rs:48:16
[INFO] [stdout]    |
[INFO] [stdout] 48 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn FnBox + Send + 'static`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/znet/connection.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 (buff, cnt) => {
[INFO] [stdout]    |                 ----------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 87 |                 _ => {
[INFO] [stdout]    |                 ^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/znet/server.rs:92:10
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/znet/server.rs:92:23
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]   --> src/znet/connection.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn send_msg(&self, msg_id: u32, data: Vec<u8>) -> Result<(), String> {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/znet/connection.rs:49:37
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn send_msg(&self, msg_id: u32, data: Vec<u8>) -> Result<(), String> {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `req_data` is never read
[INFO] [stdout]   --> src/znet/connection.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut req_data: Vec<u8> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/znet/connection.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 80 |                 (buff, cnt) => {
[INFO] [stdout]    |                 ----------- matches any value
[INFO] [stdout] ...
[INFO] [stdout] 87 |                 _ => {
[INFO] [stdout]    |                 ^ unreachable pattern
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/znet/server.rs:92:10
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/znet/server.rs:92:23
[INFO] [stdout]    |
[INFO] [stdout] 92 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `msg_id`
[INFO] [stdout]   --> src/znet/connection.rs:49:24
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn send_msg(&self, msg_id: u32, data: Vec<u8>) -> Result<(), String> {
[INFO] [stdout]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `data`
[INFO] [stdout]   --> src/znet/connection.rs:49:37
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn send_msg(&self, msg_id: u32, data: Vec<u8>) -> Result<(), String> {
[INFO] [stdout]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `req_data` is never read
[INFO] [stdout]   --> src/znet/connection.rs:77:13
[INFO] [stdout]    |
[INFO] [stdout] 77 |         let mut req_data: Vec<u8> = vec![];
[INFO] [stdout]    |             ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `packed_data` is assigned to, but never used
[INFO] [stdout]   --> src/znet/datapack.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let packed_data: Vec<u8>;
[INFO] [stdout]    |             ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_packed_data` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `packed_data` is never read
[INFO] [stdout]   --> src/znet/datapack.rs:87:17
[INFO] [stdout]    |
[INFO] [stdout] 87 |                 packed_data = bytes1.clone();
[INFO] [stdout]    |                 ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_connection`
[INFO] [stdout]   --> src/znet/server.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_connection`
[INFO] [stdout]   --> src/znet/server.rs:82:4
[INFO] [stdout]    |
[INFO] [stdout] 82 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 22 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/client.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     loop {
[INFO] [stdout] 14 | |         let content = String::from("hello...he");
[INFO] [stdout] 15 | |         println!("client sending content is: {}", &content);
[INFO] [stdout] 16 | |         stream.write(content.as_bytes())?;
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |         std::thread::sleep(std::time::Duration::from_secs(3))
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 29 |       
[INFO] [stdout] 30 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/bin/client.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut index = 1;
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[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/client.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut index = 1;
[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 variable: `status_line`
[INFO] [stdout]   --> src/bin/main.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/bin/main.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]   --> src/bin/client.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | /     loop {
[INFO] [stdout] 14 | |         let content = String::from("hello...he");
[INFO] [stdout] 15 | |         println!("client sending content is: {}", &content);
[INFO] [stdout] 16 | |         stream.write(content.as_bytes())?;
[INFO] [stdout] ...  |
[INFO] [stdout] 27 | |         std::thread::sleep(std::time::Duration::from_secs(3))
[INFO] [stdout] 28 | |     }
[INFO] [stdout]    | |_____- any code following this expression is unreachable
[INFO] [stdout] 29 |       
[INFO] [stdout] 30 |       Ok(())
[INFO] [stdout]    |       ^^^^^^ unreachable expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/bin/client.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut index = 1;
[INFO] [stdout]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[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/client.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut index = 1;
[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/main.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn handle_connection(mut stream: TcpStream) {
[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/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut stream = &mut stream_bak;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server`
[INFO] [stdout]   --> src/bin/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn server() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_connection`
[INFO] [stdout]   --> src/bin/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `status_line`
[INFO] [stdout]   --> src/bin/main.rs:57:10
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `filename`
[INFO] [stdout]   --> src/bin/main.rs:57:23
[INFO] [stdout]    |
[INFO] [stdout] 57 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stdout]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/main.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn handle_connection(mut stream: TcpStream) {
[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/main.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |     let mut stream = &mut stream_bak;
[INFO] [stdout]    |         ----^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server`
[INFO] [stdout]   --> src/bin/main.rs:27:4
[INFO] [stdout]    |
[INFO] [stdout] 27 | fn server() {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_connection`
[INFO] [stdout]   --> src/bin/main.rs:45:4
[INFO] [stdout]    |
[INFO] [stdout] 45 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/bin/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     client();
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]  --> src/bin/client.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     client();
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.34s
[INFO] running `Command { std: "docker" "inspect" "73f9da322fcb471922f4e794dd96ace89b2d89cc452c29357bcd78efe1a5048d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73f9da322fcb471922f4e794dd96ace89b2d89cc452c29357bcd78efe1a5048d", kill_on_drop: false }`
[INFO] [stdout] 73f9da322fcb471922f4e794dd96ace89b2d89cc452c29357bcd78efe1a5048d