[INFO] cloning repository https://github.com/shrehanrajsingh/dc2-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shrehanrajsingh/dc2-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrehanrajsingh%2Fdc2-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrehanrajsingh%2Fdc2-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5e439ef7359dfa59aab2d06196b14a946e621b97
[INFO] checking shrehanrajsingh/dc2-rs against try#d336647335db03a0fc5b24fc5325cd3905c5b8e8 for pr-151146-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshrehanrajsingh%2Fdc2-rs" "/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/shrehanrajsingh/dc2-rs
[INFO] finished tweaking git repo https://github.com/shrehanrajsingh/dc2-rs
[INFO] tweaked toml for git repo https://github.com/shrehanrajsingh/dc2-rs written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shrehanrajsingh/dc2-rs on toolchain d336647335db03a0fc5b24fc5325cd3905c5b8e8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shrehanrajsingh/dc2-rs 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" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "f51e4ec6d2bb8b28d1e8d0d219722bd2fcc7b04ef7874ce977bc4268a03cc0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f51e4ec6d2bb8b28d1e8d0d219722bd2fcc7b04ef7874ce977bc4268a03cc0bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f51e4ec6d2bb8b28d1e8d0d219722bd2fcc7b04ef7874ce977bc4268a03cc0bb", kill_on_drop: false }`
[INFO] [stdout] f51e4ec6d2bb8b28d1e8d0d219722bd2fcc7b04ef7874ce977bc4268a03cc0bb
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+d336647335db03a0fc5b24fc5325cd3905c5b8e8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
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[INFO] [stdout] warning: unused import: `crate::server`
[INFO] [stdout]   --> src/client.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::server;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::StdoutLock`
[INFO] [stdout]  --> src/discovery.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::StdoutLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::UdpSocket as StdUdpSocket`
[INFO] [stdout]  --> src/discovery.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::net::UdpSocket as StdUdpSocket;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/files.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha256VarCore`
[INFO] [stdout]  --> src/server.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sha2::{Digest, Sha256, Sha256VarCore};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/server.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::fs::{File, OpenOptions};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::stream`
[INFO] [stdout]   --> src/server.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PeerMessage`
[INFO] [stdout]   --> src/server.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::protocol::{PeerMessage, RequestType};
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`, `thread::sleep`, and `time::Duration`
[INFO] [stdout]   --> src/main.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     io::{self, Write},
[INFO] [stdout]    |          ^^^^  ^^^^^
[INFO] [stdout] 23 |     thread::sleep,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 24 |     time::Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/client.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut hasher = Sha256::new();
[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 import: `crate::server`
[INFO] [stdout]   --> src/client.rs:19:5
[INFO] [stdout]    |
[INFO] [stdout] 19 | use crate::server;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::io::StdoutLock`
[INFO] [stdout]  --> src/discovery.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::io::StdoutLock;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::UdpSocket as StdUdpSocket`
[INFO] [stdout]  --> src/discovery.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::net::UdpSocket as StdUdpSocket;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::path::Path`
[INFO] [stdout]   --> src/files.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::path::Path;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]  --> src/server.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::process::exit;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Sha256VarCore`
[INFO] [stdout]  --> src/server.rs:8:28
[INFO] [stdout]   |
[INFO] [stdout] 8 | use sha2::{Digest, Sha256, Sha256VarCore};
[INFO] [stdout]   |                            ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `File`
[INFO] [stdout]  --> src/server.rs:9:17
[INFO] [stdout]   |
[INFO] [stdout] 9 | use tokio::fs::{File, OpenOptions};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::stream`
[INFO] [stdout]   --> src/server.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tokio::stream;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PeerMessage`
[INFO] [stdout]   --> src/server.rs:16:23
[INFO] [stdout]    |
[INFO] [stdout] 16 | use crate::protocol::{PeerMessage, RequestType};
[INFO] [stdout]    |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Write`, `self`, `thread::sleep`, and `time::Duration`
[INFO] [stdout]   --> src/main.rs:22:10
[INFO] [stdout]    |
[INFO] [stdout] 22 |     io::{self, Write},
[INFO] [stdout]    |          ^^^^  ^^^^^
[INFO] [stdout] 23 |     thread::sleep,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 24 |     time::Duration,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/peer.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut files = scan_shared_folder().await;
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:18:45
[INFO] [stdout]    |
[INFO] [stdout] 18 | async fn handle_peer(mut socket: TcpStream, mut addr: SocketAddr) {
[INFO] [stdout]    |                                             ----^^^^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:235:14
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let (mut socket, addr) = match listener.accept().await {
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/client.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut hasher = Sha256::new();
[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: `hasher`
[INFO] [stdout]   --> src/client.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut hasher = Sha256::new();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hasher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `json_bytes`
[INFO] [stdout]   --> src/peer.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let json_bytes = json.as_bytes();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_ip`
[INFO] [stdout]   --> src/discovery.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let local_ip = get_local_ip();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]  --> src/peer.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let mut files = scan_shared_folder().await;
[INFO] [stdout]   |         ----^^^^^
[INFO] [stdout]   |         |
[INFO] [stdout]   |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `curr_port` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut curr_port = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_curr_port` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peers`
[INFO] [stdout]   --> src/main.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 let peers = start_discovery("Anonymous".to_string(), port).await;
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_peers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `curr_port` is never read
[INFO] [stdout]   --> src/main.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 curr_port = port;
[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: value assigned to `curr_port` is never read
[INFO] [stdout]   --> src/main.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 curr_port = port;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dc2mp` is never read
[INFO] [stdout]   --> src/main.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut dc2mp = "unset";
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meta` is never constructed
[INFO] [stdout]  --> src/metadb.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Meta {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/metadb.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Meta {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(name: String, ip: String, port: u16) -> Meta {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MetaDb` is never constructed
[INFO] [stdout]   --> src/metadb.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct MetaDb {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/metadb.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl MetaDb {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  25 |     pub fn new(db_path: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  29 |     pub fn init(&self) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  41 |     pub fn add(&self, meta: Meta) -> io::Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  47 |     pub fn get_all(&self) -> io::Result<Vec<Meta>> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn find_by_name(&self, name: &str) -> io::Result<Option<Meta>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |     pub fn update(&self, name: &str, new_meta: Meta) -> io::Result<bool> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn delete(&self, name: &str) -> io::Result<bool> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn write_all(&self, entries: &[Meta]) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn meta_to_json(meta: &Meta) -> Result<String, serde_json::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn json_to_meta(json: &str) -> Result<Meta, serde_json::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]   --> src/protocol.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl RequestType {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/server.rs:18:45
[INFO] [stdout]    |
[INFO] [stdout] 18 | async fn handle_peer(mut socket: TcpStream, mut addr: SocketAddr) {
[INFO] [stdout]    |                                             ----^^^^
[INFO] [stdout]    |                                             |
[INFO] [stdout]    |                                             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/server.rs:235:14
[INFO] [stdout]     |
[INFO] [stdout] 235 |         let (mut socket, addr) = match listener.accept().await {
[INFO] [stdout]     |              ----^^^^^^
[INFO] [stdout]     |              |
[INFO] [stdout]     |              help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `hasher`
[INFO] [stdout]   --> src/client.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 27 |     let mut hasher = Sha256::new();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_hasher`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `json_bytes`
[INFO] [stdout]   --> src/peer.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     let json_bytes = json.as_bytes();
[INFO] [stdout]    |         ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_json_bytes`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `local_ip`
[INFO] [stdout]   --> src/discovery.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 65 |     let local_ip = get_local_ip();
[INFO] [stdout]    |         ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_local_ip`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `curr_port` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:35:9
[INFO] [stdout]    |
[INFO] [stdout] 35 |     let mut curr_port = 0;
[INFO] [stdout]    |         ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: consider using `_curr_port` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `peers`
[INFO] [stdout]   --> src/main.rs:47:21
[INFO] [stdout]    |
[INFO] [stdout] 47 |                 let peers = start_discovery("Anonymous".to_string(), port).await;
[INFO] [stdout]    |                     ^^^^^ help: if this is intentional, prefix it with an underscore: `_peers`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `curr_port` is never read
[INFO] [stdout]   --> src/main.rs:46:17
[INFO] [stdout]    |
[INFO] [stdout] 46 |                 curr_port = port;
[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: value assigned to `curr_port` is never read
[INFO] [stdout]   --> src/main.rs:52:17
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 curr_port = port;
[INFO] [stdout]    |                 ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `dc2mp` is never read
[INFO] [stdout]   --> src/main.rs:36:21
[INFO] [stdout]    |
[INFO] [stdout] 36 |     let mut dc2mp = "unset";
[INFO] [stdout]    |                     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Meta` is never constructed
[INFO] [stdout]  --> src/metadb.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub struct Meta {
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/metadb.rs:15:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl Meta {
[INFO] [stdout]    | --------- associated function in this implementation
[INFO] [stdout] 15 |     pub fn new(name: String, ip: String, port: u16) -> Meta {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `MetaDb` is never constructed
[INFO] [stdout]   --> src/metadb.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub struct MetaDb {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/metadb.rs:25:12
[INFO] [stdout]     |
[INFO] [stdout]  24 | impl MetaDb {
[INFO] [stdout]     | ----------- associated items in this implementation
[INFO] [stdout]  25 |     pub fn new(db_path: String) -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  29 |     pub fn init(&self) -> io::Result<()> {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  41 |     pub fn add(&self, meta: Meta) -> io::Result<()> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  47 |     pub fn get_all(&self) -> io::Result<Vec<Meta>> {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  70 |     pub fn find_by_name(&self, name: &str) -> io::Result<Option<Meta>> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  75 |     pub fn update(&self, name: &str, new_meta: Meta) -> io::Result<bool> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  94 |     pub fn delete(&self, name: &str) -> io::Result<bool> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 108 |     fn write_all(&self, entries: &[Meta]) -> io::Result<()> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 123 |     pub fn meta_to_json(meta: &Meta) -> Result<String, serde_json::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 127 |     pub fn json_to_meta(json: &str) -> Result<Meta, serde_json::Error> {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `as_str` is never used
[INFO] [stdout]   --> src/protocol.rs:30:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl RequestType {
[INFO] [stdout]    | ---------------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 30 |     pub fn as_str(&self) -> &'static str {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2m 10s
[INFO] running `Command { std: "docker" "inspect" "78da7fe9491830f8cb046a5e0a8ba3e2d45ca0962ff11f889ca7f70226f5e1c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78da7fe9491830f8cb046a5e0a8ba3e2d45ca0962ff11f889ca7f70226f5e1c9", kill_on_drop: false }`
[INFO] [stdout] 78da7fe9491830f8cb046a5e0a8ba3e2d45ca0962ff11f889ca7f70226f5e1c9
