[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] testing suhanyujie/rs-web-server against try#0abe69e6c16114311cc2700e972492e64d69c28f for pr-154065-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsuhanyujie%2Frs-web-server" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/suhanyujie/rs-web-server on toolchain 0abe69e6c16114311cc2700e972492e64d69c28f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "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" "+0abe69e6c16114311cc2700e972492e64d69c28f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 130c864a8222e2da2f1fffaa6bf6e70b55486b1174bf7208ae416ac1da785232
[INFO] running `Command { std: "docker" "start" "-a" "130c864a8222e2da2f1fffaa6bf6e70b55486b1174bf7208ae416ac1da785232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "130c864a8222e2da2f1fffaa6bf6e70b55486b1174bf7208ae416ac1da785232", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "130c864a8222e2da2f1fffaa6bf6e70b55486b1174bf7208ae416ac1da785232", kill_on_drop: false }`
[INFO] [stdout] 130c864a8222e2da2f1fffaa6bf6e70b55486b1174bf7208ae416ac1da785232
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 287b99e979a3d2f25d44f1ac6e6f6ec4b39055fc04b03feee3a5a268edfedd8d
[INFO] running `Command { std: "docker" "start" "-a" "287b99e979a3d2f25d44f1ac6e6f6ec4b39055fc04b03feee3a5a268edfedd8d", 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]    Compiling nix v0.17.0
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling num-integer v0.1.43
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling chrono v0.4.18
[INFO] [stderr]    Compiling ctrlc v3.1.6
[INFO] [stderr]    Compiling 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: 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: 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: 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: 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: 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: 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 6.44s
[INFO] running `Command { std: "docker" "inspect" "287b99e979a3d2f25d44f1ac6e6f6ec4b39055fc04b03feee3a5a268edfedd8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "287b99e979a3d2f25d44f1ac6e6f6ec4b39055fc04b03feee3a5a268edfedd8d", kill_on_drop: false }`
[INFO] [stdout] 287b99e979a3d2f25d44f1ac6e6f6ec4b39055fc04b03feee3a5a268edfedd8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0551826ad31757de6b981f0c143f07fd328bfee642e6068c932e0034b894a85
[INFO] running `Command { std: "docker" "start" "-a" "c0551826ad31757de6b981f0c143f07fd328bfee642e6068c932e0034b894a85", kill_on_drop: false }`
[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: 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: 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: 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] [stderr]    Compiling web-server v0.1.0 (/opt/rustwide/workdir)
[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: 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 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: 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 `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 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: 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: 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 `test` profile [unoptimized + debuginfo] target(s) in 0.51s
[INFO] running `Command { std: "docker" "inspect" "c0551826ad31757de6b981f0c143f07fd328bfee642e6068c932e0034b894a85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0551826ad31757de6b981f0c143f07fd328bfee642e6068c932e0034b894a85", kill_on_drop: false }`
[INFO] [stdout] c0551826ad31757de6b981f0c143f07fd328bfee642e6068c932e0034b894a85
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+0abe69e6c16114311cc2700e972492e64d69c28f" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 929bc3cd3a243bf8034352c55edc4157e8302830557a48687ae3d62f604174fb
[INFO] running `Command { std: "docker" "start" "-a" "929bc3cd3a243bf8034352c55edc4157e8302830557a48687ae3d62f604174fb", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::net::TcpStream`
[INFO] [stdout] 
[INFO] [stderr]  --> src/interface/irequest.rs:1:5
[INFO] [stdout] running 2 tests
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::net::TcpStream;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `UserMessage`
[INFO] [stderr]  --> src/interface/irequest.rs:6:44
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::znet::request::{UserConnection, UserMessage};
[INFO] [stderr]   |                                            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread::sleep`
[INFO] [stderr]   --> src/znet/server.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::thread::sleep;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::interface::imessage::IMessage`
[INFO] [stderr]  --> src/znet/connection.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crate::interface::imessage::IMessage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::interface::irequest::IRequest`
[INFO] [stderr]  --> src/znet/connection.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::interface::irequest::IRequest;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::thread_pool::lib::ThreadPool`
[INFO] [stderr]  --> src/znet/connection.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::thread_pool::lib::ThreadPool;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::znet::message::Message`
[INFO] [stderr]  --> src/znet/connection.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use crate::znet::message::Message;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Request`, `UserConnection`, and `UserRequest`
[INFO] [stderr]  --> src/znet/connection.rs:9:28
[INFO] [stderr]   |
[INFO] [stderr] 9 | use crate::znet::request::{Request, UserConnection, UserMessage, UserRequest};
[INFO] [stderr]   |                            ^^^^^^^  ^^^^^^^^^^^^^^               ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::sync::mpsc::sync_channel`
[INFO] [stderr]   --> src/znet/connection.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::sync::mpsc::sync_channel;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Arc` and `Mutex`
[INFO] [stderr]   --> src/znet/connection.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::sync::{Arc, Mutex};
[INFO] [stderr]    |                 ^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]   --> src/znet/connection.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | use std::thread;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fmt::Debug`
[INFO] [stderr]   --> src/znet/connection.rs:16:11
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::{fmt::Debug, net::TcpStream};
[INFO] [stderr]    |           ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `fs`
[INFO] [stderr]   --> src/znet/connection.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 |     fs,
[INFO] [stderr]    |     ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crate::interface::imessage::IMessage`
[INFO] [stderr]  --> src/znet/request.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use crate::interface::imessage::IMessage;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/thread_pool/lib.rs:48:16
[INFO] [stderr]    |
[INFO] [stderr] 48 | type Job = Box<FnBox + Send + 'static>;
[INFO] [stderr]    |                ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` (part of `#[warn(rust_2021_compatibility)]`) on by default
[INFO] [stderr] help: if this is a dyn-compatible trait, use `dyn`
[INFO] [stderr]    |
[INFO] [stderr] 48 | type Job = Box<dyn FnBox + Send + 'static>;
[INFO] [stderr]    |                +++
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `status_line`
[INFO] [stderr]   --> src/znet/server.rs:92:10
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stderr]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/znet/server.rs:92:23
[INFO] [stderr]    |
[INFO] [stderr] 92 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stderr]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `msg_id`
[INFO] [stderr]   --> src/znet/connection.rs:49:24
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn send_msg(&self, msg_id: u32, data: Vec<u8>) -> Result<(), String> {
[INFO] [stderr]    |                        ^^^^^^ help: if this is intentional, prefix it with an underscore: `_msg_id`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `data`
[INFO] [stderr]   --> src/znet/connection.rs:49:37
[INFO] [stderr]    |
[INFO] [stderr] 49 |     fn send_msg(&self, msg_id: u32, data: Vec<u8>) -> Result<(), String> {
[INFO] [stderr]    |                                     ^^^^ help: if this is intentional, prefix it with an underscore: `_data`
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/znet/connection.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 80 |                 (buff, cnt) => {
[INFO] [stderr]    |                 ----------- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 87 |                 _ => {
[INFO] [stderr]    |                 ^ no value can reach this
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `handle_connection` is never used
[INFO] [stderr]   --> src/znet/server.rs:82:4
[INFO] [stderr]    |
[INFO] [stderr] 82 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stderr]   --> src/znet/request.rs:37:96
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(conn: Arc<Mutex<&'a mut UserConnection>>, msg: Arc<Mutex<Box<UserMessage>>>) -> Request {
[INFO] [stderr]    |                                 -- the lifetime is named here                                  ^^^^^^^ the same lifetime is hidden here
[INFO] [stderr]    |
[INFO] [stderr]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stderr]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stderr] help: consistently use `'a`
[INFO] [stderr]    |
[INFO] [stderr] 37 |     pub fn new(conn: Arc<Mutex<&'a mut UserConnection>>, msg: Arc<Mutex<Box<UserMessage>>>) -> Request<'a> {
[INFO] [stderr]    |                                                                                                       ++++
[INFO] [stderr] 
[INFO] [stderr] warning: `web-server` (lib) generated 22 warnings (run `cargo fix --lib -p web-server` to apply 20 suggestions)
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]   --> src/bin/client.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 13 | /     loop {
[INFO] [stderr] 14 | |         let content = String::from("hello...he");
[INFO] [stderr] 15 | |         println!("client sending content is: {}", &content);
[INFO] [stderr] 16 | |         stream.write(content.as_bytes())?;
[INFO] [stderr] ...  |
[INFO] [stderr] 27 | |         std::thread::sleep(std::time::Duration::from_secs(3))
[INFO] [stderr] 28 | |     }
[INFO] [stderr]    | |_____- any code following this expression is unreachable
[INFO] [stderr] 29 |       
[INFO] [stderr] 30 |       Ok(())
[INFO] [stderr]    |       ^^^^^^ unreachable expression
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/client.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut index = 1;
[INFO] [stderr]    |         ----^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/bin/client.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     let mut index = 1;
[INFO] [stderr]    |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]  --> src/bin/client.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 |     client();
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]   = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]   |
[INFO] [stderr] 7 |     let _ = client();
[INFO] [stderr]   |     +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/main.rs:45:22
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stderr]    |                      ----^^^^^^
[INFO] [stderr]    |                      |
[INFO] [stderr]    |                      help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/main.rs:49:9
[INFO] [stderr]    |
[INFO] [stderr] 49 |     let mut stream = &mut stream_bak;
[INFO] [stderr]    |         ----^^^^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `status_line`
[INFO] [stderr]   --> src/bin/main.rs:57:10
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stderr]    |          ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_status_line`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `filename`
[INFO] [stderr]   --> src/bin/main.rs:57:23
[INFO] [stderr]    |
[INFO] [stderr] 57 |     let (status_line, filename) = if buffer.starts_with(get) {
[INFO] [stderr]    |                       ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_filename`
[INFO] [stderr] 
[INFO] [stderr] warning: function `server` is never used
[INFO] [stderr]   --> src/bin/main.rs:27:4
[INFO] [stderr]    |
[INFO] [stderr] 27 | fn server() {
[INFO] [stderr]    |    ^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function `handle_connection` is never used
[INFO] [stderr]   --> src/bin/main.rs:45:4
[INFO] [stderr]    |
[INFO] [stderr] 45 | fn handle_connection(mut stream: TcpStream) {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `packed_data` is assigned to, but never used
[INFO] [stderr]   --> src/znet/datapack.rs:84:13
[INFO] [stderr]    |
[INFO] [stderr] 84 |         let packed_data: Vec<u8>;
[INFO] [stderr]    |             ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: consider using `_packed_data` instead
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `packed_data` is never read
[INFO] [stderr]   --> src/znet/datapack.rs:87:17
[INFO] [stderr]    |
[INFO] [stderr] 87 |                 packed_data = bytes1.clone();
[INFO] [stderr]    |                 ^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `web-server` (bin "client" test) generated 4 warnings (run `cargo fix --bin "client" -p web-server --tests` to apply 2 suggestions)
[INFO] [stderr] warning: `web-server` (bin "main" test) generated 6 warnings (run `cargo fix --bin "main" -p web-server --tests` to apply 4 suggestions)
[INFO] [stderr] warning: `web-server` (lib test) generated 24 warnings (22 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/web_server-d0993f3b319ca087)
[INFO] [stdout] test znet::datapack::tests::test_pack ... ok
[INFO] [stderr]      Running unittests src/bin/client.rs (/opt/rustwide/target/debug/deps/client-97fc5a4aaa02ee0a)
[INFO] [stdout] test znet::datapack::tests::test_unpack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests src/bin/main.rs (/opt/rustwide/target/debug/deps/main-ea77888db0e052ba)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stderr]    Doc-tests web_server
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "929bc3cd3a243bf8034352c55edc4157e8302830557a48687ae3d62f604174fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "929bc3cd3a243bf8034352c55edc4157e8302830557a48687ae3d62f604174fb", kill_on_drop: false }`
[INFO] [stdout] 929bc3cd3a243bf8034352c55edc4157e8302830557a48687ae3d62f604174fb
