[INFO] cloning repository https://github.com/Xuanwo/postman
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Xuanwo/postman" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXuanwo%2Fpostman", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXuanwo%2Fpostman'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80ff3fdbb4e85441b0f02a75dacbf08b61f28453
[INFO] checking Xuanwo/postman against master#642c19bfc3a5c1de985bf5d0cc8207ac9d22708a for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FXuanwo%2Fpostman" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Xuanwo/postman
[INFO] finished tweaking git repo https://github.com/Xuanwo/postman
[INFO] tweaked toml for git repo https://github.com/Xuanwo/postman written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Xuanwo/postman on toolchain 642c19bfc3a5c1de985bf5d0cc8207ac9d22708a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Xuanwo/postman 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" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded parking_lot_core v0.8.0
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a6ecc1f0d0fd9d9dabe8edd427458ab9895a9c23d663112d7b0723ad9f5bc96e
[INFO] running `Command { std: "docker" "start" "-a" "a6ecc1f0d0fd9d9dabe8edd427458ab9895a9c23d663112d7b0723ad9f5bc96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a6ecc1f0d0fd9d9dabe8edd427458ab9895a9c23d663112d7b0723ad9f5bc96e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a6ecc1f0d0fd9d9dabe8edd427458ab9895a9c23d663112d7b0723ad9f5bc96e", kill_on_drop: false }`
[INFO] [stdout] a6ecc1f0d0fd9d9dabe8edd427458ab9895a9c23d663112d7b0723ad9f5bc96e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+642c19bfc3a5c1de985bf5d0cc8207ac9d22708a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f3b14c7b223748527f646ea52d00e68bda6ebd5feda60c84c1b32321b0ae8314
[INFO] running `Command { std: "docker" "start" "-a" "f3b14c7b223748527f646ea52d00e68bda6ebd5feda60c84c1b32321b0ae8314", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling const_fn v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.117
[INFO] [stderr]     Checking smallvec v1.5.0
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.0
[INFO] [stderr]    Compiling memoffset v0.5.6
[INFO] [stderr]     Checking lock_api v0.4.2
[INFO] [stderr]    Compiling crc32fast v1.2.1
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling anyhow v1.0.34
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking termcolor v1.1.1
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]    Compiling tokio v0.3.4
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]     Checking futures-core v0.3.8
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[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking crossbeam-epoch v0.9.0
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking parking_lot v0.11.1
[INFO] [stderr]     Checking sled v0.34.6
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]     Checking bincode v1.3.1
[INFO] [stderr]     Checking postman-pop3 v0.2.0 (/opt/rustwide/workdir/components/pop3)
[INFO] [stderr]     Checking postman v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]   --> src/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use std::borrow::BorrowMut;
[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 imports: `Display`, `Formatter`, and `Write`
[INFO] [stdout]   --> src/main.rs:33:16
[INFO] [stdout]    |
[INFO] [stdout] 33 | use std::fmt::{Display, Formatter, Write};
[INFO] [stdout]    |                ^^^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]   --> src/main.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 | use anyhow::{Error, Result};
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]   --> src/main.rs:40:31
[INFO] [stdout]    |
[INFO] [stdout] 40 | use log::{debug, error, info, warn};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::IVec`
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | use sled::IVec;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ReadHalf` and `WriteHalf`
[INFO] [stdout]   --> src/main.rs:42:60
[INFO] [stdout]    |
[INFO] [stdout] 42 | use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufReader, ReadHalf, WriteHalf};
[INFO] [stdout]    |                                                            ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::tcp::OwnedReadHalf`
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | use tokio::net::tcp::OwnedReadHalf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Path`
[INFO] [stdout]    --> src/main.rs:355:21
[INFO] [stdout]     |
[INFO] [stdout] 355 |     use std::path::{Path, PathBuf};
[INFO] [stdout]     |                     ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]   --> src/main.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | use std::borrow::BorrowMut;
[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 imports: `Display`, `Formatter`, and `Write`
[INFO] [stdout]   --> src/main.rs:33:16
[INFO] [stdout]    |
[INFO] [stdout] 33 | use std::fmt::{Display, Formatter, Write};
[INFO] [stdout]    |                ^^^^^^^  ^^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Error`
[INFO] [stdout]   --> src/main.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 | use anyhow::{Error, Result};
[INFO] [stdout]    |              ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]   --> src/main.rs:40:31
[INFO] [stdout]    |
[INFO] [stdout] 40 | use log::{debug, error, info, warn};
[INFO] [stdout]    |                               ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `sled::IVec`
[INFO] [stdout]   --> src/main.rs:41:5
[INFO] [stdout]    |
[INFO] [stdout] 41 | use sled::IVec;
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ReadHalf` and `WriteHalf`
[INFO] [stdout]   --> src/main.rs:42:60
[INFO] [stdout]    |
[INFO] [stdout] 42 | use tokio::io::{AsyncBufReadExt, AsyncWriteExt, BufReader, ReadHalf, WriteHalf};
[INFO] [stdout]    |                                                            ^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::tcp::OwnedReadHalf`
[INFO] [stdout]   --> src/main.rs:43:5
[INFO] [stdout]    |
[INFO] [stdout] 43 | use tokio::net::tcp::OwnedReadHalf;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | /         loop {
[INFO] [stdout] 126 | |             self.limit_connections.acquire().await.forget();
[INFO] [stdout] 127 | |
[INFO] [stdout] 128 | |             let socket = self.accept().await?;
[INFO] [stdout] ...   |
[INFO] [stdout] 147 | |             });
[INFO] [stdout] 148 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 149 |
[INFO] [stdout] 150 |           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/main.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | /         loop {
[INFO] [stdout] 189 | |             let s = read_line(&mut r).await?;
[INFO] [stdout] 190 | |             if s.is_empty() {
[INFO] [stdout] 191 | |                 continue;
[INFO] [stdout] ...   |
[INFO] [stdout] 323 | |             w.write(resp.to_string()?.as_bytes()).await;
[INFO] [stdout] 324 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 325 |
[INFO] [stdout] 326 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:150:9
[INFO] [stdout]     |
[INFO] [stdout] 125 | /         loop {
[INFO] [stdout] 126 | |             self.limit_connections.acquire().await.forget();
[INFO] [stdout] 127 | |
[INFO] [stdout] 128 | |             let socket = self.accept().await?;
[INFO] [stdout] ...   |
[INFO] [stdout] 147 | |             });
[INFO] [stdout] 148 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 149 |
[INFO] [stdout] 150 |           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/main.rs:181:14
[INFO] [stdout]     |
[INFO] [stdout] 181 |         let (mut r, mut w) = self.connection.split();
[INFO] [stdout]     |              ----^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:326:9
[INFO] [stdout]     |
[INFO] [stdout] 188 | /         loop {
[INFO] [stdout] 189 | |             let s = read_line(&mut r).await?;
[INFO] [stdout] 190 | |             if s.is_empty() {
[INFO] [stdout] 191 | |                 continue;
[INFO] [stdout] ...   |
[INFO] [stdout] 323 | |             w.write(resp.to_string()?.as_bytes()).await;
[INFO] [stdout] 324 | |         }
[INFO] [stdout]     | |_________- any code following this expression is unreachable
[INFO] [stdout] 325 |
[INFO] [stdout] 326 |           Ok(())
[INFO] [stdout]     |           ^^^^^^ unreachable expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:181:14
[INFO] [stdout]     |
[INFO] [stdout] 181 |         let (mut r, mut w) = self.connection.split();
[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: `v`
[INFO] [stdout]    --> src/main.rs:198:31
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 Request::USER(v) => Response::USER("".to_string()),
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `auth`
[INFO] [stdout]    --> src/main.rs:308:26
[INFO] [stdout]     |
[INFO] [stdout] 308 |                     Some(auth) => unimplemented!(),
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_auth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:318:32
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 Request::TOP { id, lines } => unimplemented!(),
[INFO] [stdout]     |                                ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/main.rs:318:36
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 Request::TOP { id, lines } => unimplemented!(),
[INFO] [stdout]     |                                    ^^^^^ help: try ignoring the field: `lines: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `username`
[INFO] [stdout]    --> src/main.rs:319:33
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 Request::APOP { username, digest } => unimplemented!(),
[INFO] [stdout]     |                                 ^^^^^^^^ help: try ignoring the field: `username: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `digest`
[INFO] [stdout]    --> src/main.rs:319:43
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 Request::APOP { username, digest } => unimplemented!(),
[INFO] [stdout]     |                                           ^^^^^^ help: try ignoring the field: `digest: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `limit_connections` and `shutdown` are never read
[INFO] [stdout]   --> src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct Handler {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 74 |     limit_connections: Arc<Semaphore>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 75 |     shutdown: Shutdown,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Handler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `shutdown` and `notify` are never read
[INFO] [stdout]   --> src/shutdown.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) struct Shutdown {
[INFO] [stdout]    |                   -------- fields in this struct
[INFO] [stdout] 14 |     /// `true` if the shutdown signal has been received
[INFO] [stdout] 15 |     shutdown: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     notify: broadcast::Receiver<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Shutdown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_shutdown` and `recv` are never used
[INFO] [stdout]   --> src/shutdown.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Shutdown {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub(crate) fn is_shutdown(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub(crate) async fn recv(&mut self) {
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]  --> src/config.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Config {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Downstream` is never constructed
[INFO] [stdout]   --> src/config.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Downstream {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Upstream` is never constructed
[INFO] [stdout]   --> src/config.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Upstream {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `v`
[INFO] [stdout]    --> src/main.rs:198:31
[INFO] [stdout]     |
[INFO] [stdout] 198 |                 Request::USER(v) => Response::USER("".to_string()),
[INFO] [stdout]     |                               ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `auth`
[INFO] [stdout]    --> src/main.rs:308:26
[INFO] [stdout]     |
[INFO] [stdout] 308 |                     Some(auth) => unimplemented!(),
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_auth`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/main.rs:318:32
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 Request::TOP { id, lines } => unimplemented!(),
[INFO] [stdout]     |                                ^^ help: try ignoring the field: `id: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `lines`
[INFO] [stdout]    --> src/main.rs:318:36
[INFO] [stdout]     |
[INFO] [stdout] 318 |                 Request::TOP { id, lines } => unimplemented!(),
[INFO] [stdout]     |                                    ^^^^^ help: try ignoring the field: `lines: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `username`
[INFO] [stdout]    --> src/main.rs:319:33
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 Request::APOP { username, digest } => unimplemented!(),
[INFO] [stdout]     |                                 ^^^^^^^^ help: try ignoring the field: `username: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `digest`
[INFO] [stdout]    --> src/main.rs:319:43
[INFO] [stdout]     |
[INFO] [stdout] 319 |                 Request::APOP { username, digest } => unimplemented!(),
[INFO] [stdout]     |                                           ^^^^^^ help: try ignoring the field: `digest: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]    --> src/main.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 323 |             w.write(resp.to_string()?.as_bytes()).await;
[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] 323 |             let _ = w.write(resp.to_string()?.as_bytes()).await;
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `limit_connections` and `shutdown` are never read
[INFO] [stdout]   --> src/main.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 70 | struct Handler {
[INFO] [stdout]    |        ------- fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 74 |     limit_connections: Arc<Semaphore>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 75 |     shutdown: Shutdown,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Handler` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `shutdown` and `notify` are never read
[INFO] [stdout]   --> src/shutdown.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub(crate) struct Shutdown {
[INFO] [stdout]    |                   -------- fields in this struct
[INFO] [stdout] 14 |     /// `true` if the shutdown signal has been received
[INFO] [stdout] 15 |     shutdown: bool,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 18 |     notify: broadcast::Receiver<()>,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Shutdown` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `is_shutdown` and `recv` are never used
[INFO] [stdout]   --> src/shutdown.rs:31:19
[INFO] [stdout]    |
[INFO] [stdout] 21 | impl Shutdown {
[INFO] [stdout]    | ------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub(crate) fn is_shutdown(&self) -> bool {
[INFO] [stdout]    |                   ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 36 |     pub(crate) async fn recv(&mut self) {
[INFO] [stdout]    |                         ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Config` is never constructed
[INFO] [stdout]  --> src/config.rs:4:12
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub struct Config {
[INFO] [stdout]   |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Downstream` is never constructed
[INFO] [stdout]   --> src/config.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Downstream {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Upstream` is never constructed
[INFO] [stdout]   --> src/config.rs:22:12
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct Upstream {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/main.rs:323:13
[INFO] [stdout]     |
[INFO] [stdout] 323 |             w.write(resp.to_string()?.as_bytes()).await;
[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] 323 |             let _ = w.write(resp.to_string()?.as_bytes()).await;
[INFO] [stdout]     |             +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 18.82s
[INFO] running `Command { std: "docker" "inspect" "f3b14c7b223748527f646ea52d00e68bda6ebd5feda60c84c1b32321b0ae8314", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f3b14c7b223748527f646ea52d00e68bda6ebd5feda60c84c1b32321b0ae8314", kill_on_drop: false }`
[INFO] [stdout] f3b14c7b223748527f646ea52d00e68bda6ebd5feda60c84c1b32321b0ae8314
