[INFO] fetching crate stratum-server 2.2.0...
[INFO] checking stratum-server-2.2.0 against beta for pr-78714
[INFO] extracting crate stratum-server 2.2.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate stratum-server 2.2.0 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate stratum-server 2.2.0
[INFO] finished tweaking crates.io crate stratum-server 2.2.0
[INFO] tweaked toml for crates.io crate stratum-server 2.2.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d94a84aa7dbbf4de1f164e77b4a543359f5cb1f14b0445602146187fc537cc99
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d94a84aa7dbbf4de1f164e77b4a543359f5cb1f14b0445602146187fc537cc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d94a84aa7dbbf4de1f164e77b4a543359f5cb1f14b0445602146187fc537cc99", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d94a84aa7dbbf4de1f164e77b4a543359f5cb1f14b0445602146187fc537cc99", kill_on_drop: false }`
[INFO] [stdout] d94a84aa7dbbf4de1f164e77b4a543359f5cb1f14b0445602146187fc537cc99
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 44de65383867620bd62279c658aea19f35094d3fa61574198d70fc13c690f40b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "44de65383867620bd62279c658aea19f35094d3fa61574198d70fc13c690f40b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
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[INFO] [stderr]     Checking async-sse v4.1.0
[INFO] [stderr]     Checking tide v0.14.0
[INFO] [stderr]     Checking stratum-server v2.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Body`
[INFO] [stdout]  --> src/api.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tide::{Body, Middleware, Next, Request, Response};
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Body`
[INFO] [stdout]  --> src/api.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tide::{Body, Middleware, Next, Request, Response};
[INFO] [stdout]   |            ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]    --> src/server.rs:163:32
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 while let Some(event) = rx.next().await {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `event`
[INFO] [stdout]    --> src/server.rs:163:32
[INFO] [stdout]     |
[INFO] [stdout] 163 |                 while let Some(event) = rx.next().await {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_event`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_connections`
[INFO] [stdout]   --> src/server.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub(crate) max_connections: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `max_connections`
[INFO] [stdout]   --> src/server.rs:60:5
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub(crate) max_connections: Option<usize>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StratumResult`
[INFO] [stdout]  --> tests/common.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 | use stratum_server::{Connection, MinerList, StratumRequest, StratumResult};
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StratumResult`
[INFO] [stdout]  --> tests/tcp.rs:7:50
[INFO] [stdout]   |
[INFO] [stdout] 7 | use stratum_server::{Connection, StratumRequest, StratumResult};
[INFO] [stdout]   |                                                  ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StratumResult`
[INFO] [stdout]  --> tests/common.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 | use stratum_server::{Connection, MinerList, StratumRequest, StratumResult};
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> tests/common.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_list`
[INFO] [stdout]   --> tests/common.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::net::TcpStream`
[INFO] [stdout]  --> tests/basic_server_websocket_test.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::prelude::FutureExt`
[INFO] [stdout]  --> tests/basic_server_websocket_test.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::prelude::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::io::AsyncWriteExt`
[INFO] [stdout]  --> tests/basic_server_websocket_test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use futures::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::SinkExt`
[INFO] [stdout]  --> tests/basic_server_websocket_test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use futures::SinkExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> tests/basic_server_websocket_test.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stratum_server::StratumServer`
[INFO] [stdout]  --> tests/basic_server_websocket_test.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use stratum_server::StratumServer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StratumResult`
[INFO] [stdout]   --> tests/basic_server_websocket_test.rs:10:50
[INFO] [stdout]    |
[INFO] [stdout] 10 | use stratum_server::{Connection, StratumRequest, StratumResult};
[INFO] [stdout]    |                                                  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StratumResult`
[INFO] [stdout]  --> tests/common.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 | use stratum_server::{Connection, MinerList, StratumRequest, StratumResult};
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> tests/common.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_list`
[INFO] [stdout]   --> tests/common.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::net::TcpStream`
[INFO] [stdout]  --> tests/signals.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use async_std::net::TcpStream;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::prelude::FutureExt`
[INFO] [stdout]  --> tests/signals.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::prelude::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::sync::Arc`
[INFO] [stdout]  --> tests/signals.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::io::AsyncWriteExt`
[INFO] [stdout]  --> tests/signals.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use futures::io::AsyncWriteExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `stratum_server::StratumServer`
[INFO] [stdout]  --> tests/signals.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use stratum_server::StratumServer;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Connection`, `MinerList`, `StratumRequest`, `StratumResult`
[INFO] [stdout]  --> tests/signals.rs:8:22
[INFO] [stdout]   |
[INFO] [stdout] 8 | use stratum_server::{Connection, MinerList, StratumRequest, StratumResult};
[INFO] [stdout]   |                      ^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `StratumResult`
[INFO] [stdout]  --> tests/common.rs:8:61
[INFO] [stdout]   |
[INFO] [stdout] 8 | use stratum_server::{Connection, MinerList, StratumRequest, StratumResult};
[INFO] [stdout]   |                                                             ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_sigint`
[INFO] [stdout]   --> tests/common.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn call_sigint() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_sigterm`
[INFO] [stdout]   --> tests/common.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn call_sigterm() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `login`
[INFO] [stdout]   --> tests/common.rs:44:18
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub async fn login(&self) -> bool {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_auth`
[INFO] [stdout]   --> tests/common.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub async fn handle_auth(
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `poll_global`
[INFO] [stdout]   --> tests/common.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server_with_auth`
[INFO] [stdout]   --> tests/common.rs:76:14
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub async fn server_with_auth(port: u16) -> StratumServer<State, ConnectionState> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server_with_global`
[INFO] [stdout]   --> tests/common.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub async fn server_with_global(port: u16) -> StratumServer<State, ConnectionState> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_connections`
[INFO] [stdout]    --> tests/common.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn generate_connections(num: usize, url: &str, sleep_duration: u64) -> Vec<JoinHandle<usize>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> tests/common.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_list`
[INFO] [stdout]   --> tests/common.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `find_port`
[INFO] [stdout]   --> tests/common.rs:13:14
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub async fn find_port() -> u16 {
[INFO] [stdout]    |              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `LOGGER_ENV`
[INFO] [stdout]   --> tests/common.rs:17:1
[INFO] [stdout]    |
[INFO] [stdout] 17 | static LOGGER_ENV: Once = Once::new();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: static is never used: `LOGGER`
[INFO] [stdout]   --> tests/common.rs:18:1
[INFO] [stdout]    |
[INFO] [stdout] 18 | static LOGGER: Once = Once::new();
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `init`
[INFO] [stdout]   --> tests/common.rs:20:8
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub fn init() {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_sigint`
[INFO] [stdout]   --> tests/common.rs:30:8
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn call_sigint() {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `call_sigterm`
[INFO] [stdout]   --> tests/common.rs:35:8
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub fn call_sigterm() {
[INFO] [stdout]    |        ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `login`
[INFO] [stdout]   --> tests/common.rs:44:18
[INFO] [stdout]    |
[INFO] [stdout] 44 |     pub async fn login(&self) -> bool {
[INFO] [stdout]    |                  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `handle_auth`
[INFO] [stdout]   --> tests/common.rs:58:14
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub async fn handle_auth(
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `poll_global`
[INFO] [stdout]   --> tests/common.rs:69:14
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server_with_auth`
[INFO] [stdout]   --> tests/common.rs:76:14
[INFO] [stdout]    |
[INFO] [stdout] 76 | pub async fn server_with_auth(port: u16) -> StratumServer<State, ConnectionState> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `server_with_global`
[INFO] [stdout]   --> tests/common.rs:91:14
[INFO] [stdout]    |
[INFO] [stdout] 91 | pub async fn server_with_global(port: u16) -> StratumServer<State, ConnectionState> {
[INFO] [stdout]    |              ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `generate_connections`
[INFO] [stdout]    --> tests/common.rs:109:8
[INFO] [stdout]     |
[INFO] [stdout] 109 | pub fn generate_connections(num: usize, url: &str, sleep_duration: u64) -> Vec<JoinHandle<usize>> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 24 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> tests/tcp.rs:61:9
[INFO] [stdout]    |
[INFO] [stdout] 61 |         server.start().await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> tests/tcp.rs:72:9
[INFO] [stdout]    |
[INFO] [stdout] 72 |         stream.write_all(msg.as_bytes()).await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> tests/tcp.rs:73:9
[INFO] [stdout]    |
[INFO] [stdout] 73 |         stream.write_all(b"\n").await;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> tests/common.rs:69:26
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `connection_list`
[INFO] [stdout]   --> tests/common.rs:69:40
[INFO] [stdout]    |
[INFO] [stdout] 69 | pub async fn poll_global(state: State, connection_list: Arc<MinerList<ConnectionState>>) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection_list`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_stream`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> tests/common.rs:119:21
[INFO] [stdout]     |
[INFO] [stdout] 119 |                 let mut stream = TcpStream::connect(&url).await.unwrap();
[INFO] [stdout]     |                     ----^^^^^^
[INFO] [stdout]     |                     |
[INFO] [stdout]     |                     help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.06s
[INFO] running `Command { std: "docker" "inspect" "44de65383867620bd62279c658aea19f35094d3fa61574198d70fc13c690f40b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "44de65383867620bd62279c658aea19f35094d3fa61574198d70fc13c690f40b", kill_on_drop: false }`
[INFO] [stdout] 44de65383867620bd62279c658aea19f35094d3fa61574198d70fc13c690f40b