[INFO] cloning repository https://github.com/gavxin/rust-misc
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/gavxin/rust-misc" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavxin%2Frust-misc", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavxin%2Frust-misc'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 033a89b9fc5d83f095dd151d391eb44de2f5eb8c
[INFO] testing gavxin/rust-misc against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgavxin%2Frust-misc" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/gavxin/rust-misc on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/gavxin/rust-misc
[INFO] finished tweaking git repo https://github.com/gavxin/rust-misc
[INFO] tweaked toml for git repo https://github.com/gavxin/rust-misc written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/gavxin/rust-misc already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e06d4497853b484963a53b61c2145e483833b3c94839ff30d0372c598650141a
[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" "e06d4497853b484963a53b61c2145e483833b3c94839ff30d0372c598650141a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e06d4497853b484963a53b61c2145e483833b3c94839ff30d0372c598650141a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e06d4497853b484963a53b61c2145e483833b3c94839ff30d0372c598650141a", kill_on_drop: false }`
[INFO] [stdout] e06d4497853b484963a53b61c2145e483833b3c94839ff30d0372c598650141a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4936608c8e6241b47acbdeda23688f0b978fa0ce0445b33d36655cf68146fdd
[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" "f4936608c8e6241b47acbdeda23688f0b978fa0ce0445b33d36655cf68146fdd", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-misc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Ipv6Addr`, `SocketAddrV4`, `SocketAddr`
[INFO] [stdout]  --> src/bin/simple_socks_proxy.rs:3:50
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::{TcpListener, TcpStream, Shutdown, SocketAddr, SocketAddrV4, Ipv4Addr, Ipv6Addr};
[INFO] [stdout]   |                                                  ^^^^^^^^^^  ^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/simple_socks_proxy.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/simple_socks_proxy.rs:134:24
[INFO] [stdout]     |
[INFO] [stdout] 134 |                     if (e.kind() == ErrorKind::WouldBlock) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/bin/simple_socks_proxy.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 148 | /     loop {
[INFO] [stdout] 149 | |         match stream.read(&mut buff) {
[INFO] [stdout] 150 | |             Ok(n) => {
[INFO] [stdout] 151 | |                 if n == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 171 | |         }
[INFO] [stdout] 172 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 176 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/simple_socks_proxy.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut s : String;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/simple_socks_proxy.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut port = ((tmp[4] as u16) << 8) + tmp[5] as u16;
[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/bin/simple_socks_proxy.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let mut port = ((port_buf[0] as u16) << 8) + port_buf[1] as u16;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/bin/simple_socks_proxy.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             dbg!(ret);
[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]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.58s
[INFO] running `Command { std: "docker" "inspect" "f4936608c8e6241b47acbdeda23688f0b978fa0ce0445b33d36655cf68146fdd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4936608c8e6241b47acbdeda23688f0b978fa0ce0445b33d36655cf68146fdd", kill_on_drop: false }`
[INFO] [stdout] f4936608c8e6241b47acbdeda23688f0b978fa0ce0445b33d36655cf68146fdd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 23a15b2b291fef72d09728330c481b6aab35d0e9b3ab9cf9634695a601d85c49
[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" "23a15b2b291fef72d09728330c481b6aab35d0e9b3ab9cf9634695a601d85c49", kill_on_drop: false }`
[INFO] [stderr]    Compiling rust-misc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Ipv6Addr`, `SocketAddrV4`, `SocketAddr`
[INFO] [stdout]  --> src/bin/simple_socks_proxy.rs:3:50
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::net::{TcpListener, TcpStream, Shutdown, SocketAddr, SocketAddrV4, Ipv4Addr, Ipv6Addr};
[INFO] [stdout]   |                                                  ^^^^^^^^^^  ^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]  --> src/bin/simple_socks_proxy.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::time::Duration;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/bin/simple_socks_proxy.rs:134:24
[INFO] [stdout]     |
[INFO] [stdout] 134 |                     if (e.kind() == ErrorKind::WouldBlock) {
[INFO] [stdout]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/bin/simple_socks_proxy.rs:176:5
[INFO] [stdout]     |
[INFO] [stdout] 148 | /     loop {
[INFO] [stdout] 149 | |         match stream.read(&mut buff) {
[INFO] [stdout] 150 | |             Ok(n) => {
[INFO] [stdout] 151 | |                 if n == 0 {
[INFO] [stdout] ...   |
[INFO] [stdout] 171 | |         }
[INFO] [stdout] 172 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] ...
[INFO] [stdout] 176 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/simple_socks_proxy.rs:54:9
[INFO] [stdout]    |
[INFO] [stdout] 54 |     let mut s : String;
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/bin/simple_socks_proxy.rs:60:17
[INFO] [stdout]    |
[INFO] [stdout] 60 |             let mut port = ((tmp[4] as u16) << 8) + tmp[5] as u16;
[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/bin/simple_socks_proxy.rs:70:17
[INFO] [stdout]    |
[INFO] [stdout] 70 |             let mut port = ((port_buf[0] as u16) << 8) + port_buf[1] as u16;
[INFO] [stdout]    |                 ----^^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/bin/simple_socks_proxy.rs:195:13
[INFO] [stdout]     |
[INFO] [stdout] 195 |             dbg!(ret);
[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]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `Command { std: "docker" "inspect" "23a15b2b291fef72d09728330c481b6aab35d0e9b3ab9cf9634695a601d85c49", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "23a15b2b291fef72d09728330c481b6aab35d0e9b3ab9cf9634695a601d85c49", kill_on_drop: false }`
[INFO] [stdout] 23a15b2b291fef72d09728330c481b6aab35d0e9b3ab9cf9634695a601d85c49
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7a33d0fb3cb1baca732aa507def005d93b80b6264431988de48d8a51b106e792
[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" "7a33d0fb3cb1baca732aa507def005d93b80b6264431988de48d8a51b106e792", kill_on_drop: false }`
[INFO] [stderr] warning: unused imports: `Ipv6Addr`, `SocketAddrV4`, `SocketAddr`
[INFO] [stderr]  --> src/bin/simple_socks_proxy.rs:3:50
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::net::{TcpListener, TcpStream, Shutdown, SocketAddr, SocketAddrV4, Ipv4Addr, Ipv6Addr};
[INFO] [stderr]   |                                                  ^^^^^^^^^^  ^^^^^^^^^^^^            ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::time::Duration`
[INFO] [stderr]  --> src/bin/simple_socks_proxy.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::time::Duration;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:134:24
[INFO] [stderr]     |
[INFO] [stderr] 134 |                     if (e.kind() == ErrorKind::WouldBlock) {
[INFO] [stderr]     |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:176:5
[INFO] [stderr]     |
[INFO] [stderr] 148 | /     loop {
[INFO] [stderr] 149 | |         match stream.read(&mut buff) {
[INFO] [stderr] 150 | |             Ok(n) => {
[INFO] [stderr] 151 | |                 if n == 0 {
[INFO] [stderr] ...   |
[INFO] [stderr] 171 | |         }
[INFO] [stderr] 172 | |     }
[INFO] [stderr]     | |_____- any code following this expression is unreachable
[INFO] [stderr] ...
[INFO] [stderr] 176 |       Ok(())
[INFO] [stderr]     |       ^^^^^^ unreachable expression
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:54:9
[INFO] [stderr]    |
[INFO] [stderr] 54 |     let mut s : String;
[INFO] [stderr]    |         ----^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 60 |             let mut port = ((tmp[4] as u16) << 8) + tmp[5] as u16;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/bin/simple_socks_proxy.rs:70:17
[INFO] [stderr]    |
[INFO] [stderr] 70 |             let mut port = ((port_buf[0] as u16) << 8) + port_buf[1] as u16;
[INFO] [stderr]    |                 ----^^^^
[INFO] [stderr]    |                 |
[INFO] [stderr]    |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/bin/simple_socks_proxy.rs:195:13
[INFO] [stderr]     |
[INFO] [stderr] 195 |             dbg!(ret);
[INFO] [stderr]     |             ^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: 8 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simple_socks_proxy-ca70806ea4076615
[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
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "7a33d0fb3cb1baca732aa507def005d93b80b6264431988de48d8a51b106e792", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a33d0fb3cb1baca732aa507def005d93b80b6264431988de48d8a51b106e792", kill_on_drop: false }`
[INFO] [stdout] 7a33d0fb3cb1baca732aa507def005d93b80b6264431988de48d8a51b106e792