[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 eca445e5ae4a6679cc27d3a09106ce245e13a5a6 for pr-162478
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[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-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/suhanyujie/rs-web-server on toolchain eca445e5ae4a6679cc27d3a09106ce245e13a5a6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/suhanyujie/rs-web-server 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" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctrlc v3.1.6
[INFO] [stderr]   Downloaded cc v1.0.60
[INFO] [stderr]   Downloaded chrono v0.4.18
[INFO] [stderr]   Downloaded nix v0.17.0
[INFO] [stderr]   Downloaded libc v0.2.77
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f
[INFO] running `Command { std: "docker" "start" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-w" "/opt/rustwide/workdir" "--user" "0:0" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f" "/opt/rustwide/cargo-home/bin/cargo" "+eca445e5ae4a6679cc27d3a09106ce245e13a5a6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling libc v0.2.77
[INFO] [stderr]    Compiling nix v0.17.0
[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 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)]` (part of `#[warn(unused)]`) 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`, and `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` and `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: 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)]` (part of `#[warn(unused)]`) 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`, and `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` and `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: use of deprecated module `std::u8`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/interface/idatapack.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::u8;
[INFO] [stdout]   |          ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[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]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 | type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]    |                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated module `std::u8`: all constants in this module replaced by associated constants on the type
[INFO] [stdout]  --> src/interface/idatapack.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::u8;
[INFO] [stdout]   |          ^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(deprecated)]` on by default
[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]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stdout] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 48 | type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stdout]    |                +++
[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)]` (part of `#[warn(unused)]`) 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: 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)]` (part of `#[warn(unused)]`) 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: 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]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) 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]    |                 ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[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]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/znet/request.rs:37:96
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(conn: Arc<Mutex<&'a mut UserConnection>>, msg: Arc<Mutex<Box<UserMessage>>>) -> Request {
[INFO] [stdout]    |                                 -- the lifetime is named here                                  ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(conn: Arc<Mutex<&'a mut UserConnection>>, msg: Arc<Mutex<Box<UserMessage>>>) -> Request<'a> {
[INFO] [stdout]    |                                                                                                       ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/znet/request.rs:37:96
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(conn: Arc<Mutex<&'a mut UserConnection>>, msg: Arc<Mutex<Box<UserMessage>>>) -> Request {
[INFO] [stdout]    |                                 -- the lifetime is named here                                  ^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 37 |     pub fn new(conn: Arc<Mutex<&'a mut UserConnection>>, msg: Arc<Mutex<Box<UserMessage>>>) -> Request<'a> {
[INFO] [stdout]    |                                                                                                       ++++
[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)]` (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/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: 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)]` (part of `#[warn(unused)]`) 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: function `server` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection` is never used
[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: 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)]` (part of `#[warn(unused)]`) on by default
[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)]` (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/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)]` (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/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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let _ = client();
[INFO] [stdout]   |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `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: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let _ = client();
[INFO] [stdout]   |     +++++++
[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)]` (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/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: 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)]` (part of `#[warn(unused)]`) 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: function `server` is never used
[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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_connection` is never used
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 6.42s
[INFO] running `Command { std: "docker" "inspect" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f", kill_on_drop: false }`
[INFO] [stdout] 6fd3a77fa8f070889930d6b8b12f0db5aee8c1b235cec14287197aff35a2d26f
