[INFO] cloning repository https://github.com/acarl123/RustUDPListener
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/acarl123/RustUDPListener" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facarl123%2FRustUDPListener", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facarl123%2FRustUDPListener'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eae210b6c2a87b325c6698c68043ef2fc3b3d179
[INFO] testing acarl123/RustUDPListener against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Facarl123%2FRustUDPListener" "/workspace/builds/worker-15/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-15/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/acarl123/RustUDPListener on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/acarl123/RustUDPListener
[INFO] finished tweaking git repo https://github.com/acarl123/RustUDPListener
[INFO] tweaked toml for git repo https://github.com/acarl123/RustUDPListener written to /workspace/builds/worker-15/source/Cargo.toml
[INFO] crate git repo https://github.com/acarl123/RustUDPListener already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--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-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bdc6149a12099ef276f77e60ba473b04a726efbfe839d714d44098770330582e
[INFO] running `Command { std: "docker" "start" "-a" "bdc6149a12099ef276f77e60ba473b04a726efbfe839d714d44098770330582e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bdc6149a12099ef276f77e60ba473b04a726efbfe839d714d44098770330582e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bdc6149a12099ef276f77e60ba473b04a726efbfe839d714d44098770330582e", kill_on_drop: false }`
[INFO] [stdout] bdc6149a12099ef276f77e60ba473b04a726efbfe839d714d44098770330582e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f217aad00ed720bd543aaec385e9cf39d24248198fb8c1e9eb359cfd34535976
[INFO] running `Command { std: "docker" "start" "-a" "f217aad00ed720bd543aaec385e9cf39d24248198fb8c1e9eb359cfd34535976", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling SocketSender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut socket = try!(UdpSocket::bind(&bind_addr.as_str()));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:29:26
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (amt, src) = try!(socket.recv_from(&mut buf));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         try!(socket.send_to(buf, &src));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut socket = try!(UdpSocket::bind(&bind_addr.as_str()));
[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: crate `SocketSender` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `socket_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `byteArray` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn int_to_char(byteArray: &[u8; 255]) -> String{
[INFO] [stdout]   |                ^^^^^^^^^ help: convert the identifier to snake case: `byte_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newVec` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut newVec = Vec::new();
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `new_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `listenAddr` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn socket_response(listenAddr: &str, listenPort: i32) -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^ help: convert the identifier to snake case: `listen_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `listenPort` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn socket_response(listenAddr: &str, listenPort: i32) -> Result<(), Error> {
[INFO] [stdout]    |                                      ^^^^^^^^^^ help: convert the identifier to snake case: `listen_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     socket_response("0.0.0.0", 13389);
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "f217aad00ed720bd543aaec385e9cf39d24248198fb8c1e9eb359cfd34535976", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f217aad00ed720bd543aaec385e9cf39d24248198fb8c1e9eb359cfd34535976", kill_on_drop: false }`
[INFO] [stdout] f217aad00ed720bd543aaec385e9cf39d24248198fb8c1e9eb359cfd34535976
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce2e2d33e70ad423f33f0752cab875af93418f3ec057a35a03bf2597ddc634c1
[INFO] running `Command { std: "docker" "start" "-a" "ce2e2d33e70ad423f33f0752cab875af93418f3ec057a35a03bf2597ddc634c1", kill_on_drop: false }`
[INFO] [stderr]    Compiling SocketSender v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::iter::FromIterator`
[INFO] [stdout]  --> src/main.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::iter::FromIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut socket = try!(UdpSocket::bind(&bind_addr.as_str()));
[INFO] [stdout]    |                      ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:29:26
[INFO] [stdout]    |
[INFO] [stdout] 29 |         let (amt, src) = try!(socket.recv_from(&mut buf));
[INFO] [stdout]    |                          ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/main.rs:38:9
[INFO] [stdout]    |
[INFO] [stdout] 38 |         try!(socket.send_to(buf, &src));
[INFO] [stdout]    |         ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut socket = try!(UdpSocket::bind(&bind_addr.as_str()));
[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: crate `SocketSender` should have a snake case name
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout]   = help: convert the identifier to snake case: `socket_sender`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `byteArray` should have a snake case name
[INFO] [stdout]  --> src/main.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | fn int_to_char(byteArray: &[u8; 255]) -> String{
[INFO] [stdout]   |                ^^^^^^^^^ help: convert the identifier to snake case: `byte_array`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `newVec` should have a snake case name
[INFO] [stdout]   --> src/main.rs:10:13
[INFO] [stdout]    |
[INFO] [stdout] 10 |     let mut newVec = Vec::new();
[INFO] [stdout]    |             ^^^^^^ help: convert the identifier to snake case: `new_vec`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `listenAddr` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:20
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn socket_response(listenAddr: &str, listenPort: i32) -> Result<(), Error> {
[INFO] [stdout]    |                    ^^^^^^^^^^ help: convert the identifier to snake case: `listen_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `listenPort` should have a snake case name
[INFO] [stdout]   --> src/main.rs:20:38
[INFO] [stdout]    |
[INFO] [stdout] 20 | fn socket_response(listenAddr: &str, listenPort: i32) -> Result<(), Error> {
[INFO] [stdout]    |                                      ^^^^^^^^^^ help: convert the identifier to snake case: `listen_port`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:51:5
[INFO] [stdout]    |
[INFO] [stdout] 51 |     socket_response("0.0.0.0", 13389);
[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: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.55s
[INFO] running `Command { std: "docker" "inspect" "ce2e2d33e70ad423f33f0752cab875af93418f3ec057a35a03bf2597ddc634c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce2e2d33e70ad423f33f0752cab875af93418f3ec057a35a03bf2597ddc634c1", kill_on_drop: false }`
[INFO] [stdout] ce2e2d33e70ad423f33f0752cab875af93418f3ec057a35a03bf2597ddc634c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-15/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 34276cfae5a19c8d7f379ad680f3ecf84ae48a9051a982d6fb611a687c67dcc6
[INFO] running `Command { std: "docker" "start" "-a" "34276cfae5a19c8d7f379ad680f3ecf84ae48a9051a982d6fb611a687c67dcc6", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/main.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:23:22
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut socket = try!(UdpSocket::bind(&bind_addr.as_str()));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:29:26
[INFO] [stderr]    |
[INFO] [stderr] 29 |         let (amt, src) = try!(socket.recv_from(&mut buf));
[INFO] [stderr]    |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/main.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |         try!(socket.send_to(buf, &src));
[INFO] [stderr]    |         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:23:9
[INFO] [stderr]    |
[INFO] [stderr] 23 |     let mut socket = try!(UdpSocket::bind(&bind_addr.as_str()));
[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: crate `SocketSender` should have a snake case name
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr]   = help: convert the identifier to snake case: `socket_sender`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `byteArray` should have a snake case name
[INFO] [stderr]  --> src/main.rs:8:16
[INFO] [stderr]   |
[INFO] [stderr] 8 | fn int_to_char(byteArray: &[u8; 255]) -> String{
[INFO] [stderr]   |                ^^^^^^^^^ help: convert the identifier to snake case: `byte_array`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `newVec` should have a snake case name
[INFO] [stderr]   --> src/main.rs:10:13
[INFO] [stderr]    |
[INFO] [stderr] 10 |     let mut newVec = Vec::new();
[INFO] [stderr]    |             ^^^^^^ help: convert the identifier to snake case: `new_vec`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `listenAddr` should have a snake case name
[INFO] [stderr]   --> src/main.rs:20:20
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn socket_response(listenAddr: &str, listenPort: i32) -> Result<(), Error> {
[INFO] [stderr]    |                    ^^^^^^^^^^ help: convert the identifier to snake case: `listen_addr`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `listenPort` should have a snake case name
[INFO] [stderr]   --> src/main.rs:20:38
[INFO] [stderr]    |
[INFO] [stderr] 20 | fn socket_response(listenAddr: &str, listenPort: i32) -> Result<(), Error> {
[INFO] [stderr]    |                                      ^^^^^^^^^^ help: convert the identifier to snake case: `listen_port`
[INFO] [stderr] 
[INFO] [stderr] warning: unused `Result` that must be used
[INFO] [stderr]   --> src/main.rs:51:5
[INFO] [stderr]    |
[INFO] [stderr] 51 |     socket_response("0.0.0.0", 13389);
[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] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/SocketSender-f9a555506a16c8b1)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "34276cfae5a19c8d7f379ad680f3ecf84ae48a9051a982d6fb611a687c67dcc6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34276cfae5a19c8d7f379ad680f3ecf84ae48a9051a982d6fb611a687c67dcc6", kill_on_drop: false }`
[INFO] [stdout] 34276cfae5a19c8d7f379ad680f3ecf84ae48a9051a982d6fb611a687c67dcc6