[INFO] cloning repository https://github.com/DrBrad/UTPRust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/DrBrad/UTPRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrBrad%2FUTPRust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrBrad%2FUTPRust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1ecd46509037110e721018fe46c0dfbf31019016
[INFO] checking DrBrad/UTPRust against master#5a45ab9738330fb317d49e3594c2db5248b1e971 for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FDrBrad%2FUTPRust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/DrBrad/UTPRust on toolchain 5a45ab9738330fb317d49e3594c2db5248b1e971
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/DrBrad/UTPRust
[INFO] finished tweaking git repo https://github.com/DrBrad/UTPRust
[INFO] tweaked toml for git repo https://github.com/DrBrad/UTPRust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/DrBrad/UTPRust 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" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4d9b0897dee5d8569a8491f762b25edf78c9d913deb1c92c8fc823c6520b864a
[INFO] running `Command { std: "docker" "start" "-a" "4d9b0897dee5d8569a8491f762b25edf78c9d913deb1c92c8fc823c6520b864a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4d9b0897dee5d8569a8491f762b25edf78c9d913deb1c92c8fc823c6520b864a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d9b0897dee5d8569a8491f762b25edf78c9d913deb1c92c8fc823c6520b864a", kill_on_drop: false }`
[INFO] [stdout] 4d9b0897dee5d8569a8491f762b25edf78c9d913deb1c92c8fc823c6520b864a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+5a45ab9738330fb317d49e3594c2db5248b1e971" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3aee5006a34a9591a7390d8c27b78bed422a10124deebefc9d7672400fb9339c
[INFO] running `Command { std: "docker" "start" "-a" "3aee5006a34a9591a7390d8c27b78bed422a10124deebefc9d7672400fb9339c", kill_on_drop: false }`
[INFO] [stderr]     Checking utp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Debug` and `Display`
[INFO] [stdout]  --> src/utp/socket.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpsc`
[INFO] [stdout]  --> src/utp/socket.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{mpsc, Arc, RwLock};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sender` and `TryRecvError`
[INFO] [stdout]  --> src/utp/socket.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::mpsc::{channel, Receiver, Sender, TryRecvError};
[INFO] [stdout]   |                                          ^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH`
[INFO] [stdout]  --> src/utp/socket.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]   |                           ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utp::conn::Connection`
[INFO] [stdout]  --> src/utp/socket.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::utp::conn::Connection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SocketEvent` and `StreamEvent`
[INFO] [stdout]  --> src/utp/socket.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::utp::event::{SocketEvent, StreamEvent};
[INFO] [stdout]   |                         ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Read` and `Write`
[INFO] [stdout]   --> src/lib.rs:12:19
[INFO] [stdout]    |
[INFO] [stdout] 12 |     use std::io::{Read, Write};
[INFO] [stdout]    |                   ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IpAddr`, `TcpListener`, `TcpStream`, and `UdpSocket`
[INFO] [stdout]   --> src/lib.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use std::net::{IpAddr, Ipv4Addr, SocketAddr, TcpListener, TcpStream, UdpSocket};
[INFO] [stdout]    |                    ^^^^^^                        ^^^^^^^^^^^  ^^^^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread`
[INFO] [stdout]   --> src/lib.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     use std::thread;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::thread::sleep`
[INFO] [stdout]   --> src/lib.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     use std::thread::sleep;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::Duration`
[INFO] [stdout]   --> src/lib.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     use std::time::Duration;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utp::stream::UtpStream`
[INFO] [stdout]   --> src/lib.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     use crate::utp::stream::UtpStream;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Debug` and `Display`
[INFO] [stdout]  --> src/utp/socket.rs:3:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::fmt::{Debug, Display};
[INFO] [stdout]   |                ^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mpsc`
[INFO] [stdout]  --> src/utp/socket.rs:5:17
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::sync::{mpsc, Arc, RwLock};
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Sender` and `TryRecvError`
[INFO] [stdout]  --> src/utp/socket.rs:6:42
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::sync::mpsc::{channel, Receiver, Sender, TryRecvError};
[INFO] [stdout]   |                                          ^^^^^^  ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SystemTime` and `UNIX_EPOCH`
[INFO] [stdout]  --> src/utp/socket.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::time::{Duration, SystemTime, UNIX_EPOCH};
[INFO] [stdout]   |                           ^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::utp::conn::Connection`
[INFO] [stdout]  --> src/utp/socket.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::utp::conn::Connection;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `SocketEvent` and `StreamEvent`
[INFO] [stdout]  --> src/utp/socket.rs:9:25
[INFO] [stdout]   |
[INFO] [stdout] 9 | use crate::utp::event::{SocketEvent, StreamEvent};
[INFO] [stdout]   |                         ^^^^^^^^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/utp/socket.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let conns = Arc::new(RwLock::new(HashMap::new()));
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ cannot infer type of the type parameter `V` declared on the struct `HashMap`
[INFO] [stdout] ...
[INFO] [stdout] 49 |                                 conn.on_packet(packet);
[INFO] [stdout]    |                                      --------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let conns = Arc::new(RwLock::new(HashMap::<K, V>::new()));
[INFO] [stdout]    |                                                 ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> src/utp/socket.rs:28:42
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let conns = Arc::new(RwLock::new(HashMap::new()));
[INFO] [stdout]    |                                          ^^^^^^^^^^^^ cannot infer type of the type parameter `V` declared on the struct `HashMap`
[INFO] [stdout] ...
[INFO] [stdout] 49 |                                 conn.on_packet(packet);
[INFO] [stdout]    |                                      --------- type must be known at this point
[INFO] [stdout]    |
[INFO] [stdout] help: consider specifying the generic arguments
[INFO] [stdout]    |
[INFO] [stdout] 28 |         let conns = Arc::new(RwLock::new(HashMap::<K, V>::new()));
[INFO] [stdout]    |                                                 ++++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/utp/socket.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             Err(e) => None,
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utp/stream.rs:24:24
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utp/stream.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]    --> src/utp/socket.rs:142:17
[INFO] [stdout]     |
[INFO] [stdout] 142 |             Err(e) => None,
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utp/stream.rs:24:24
[INFO] [stdout]    |
[INFO] [stdout] 24 |     fn read(&mut self, buf: &mut [u8]) -> io::Result<usize> {
[INFO] [stdout]    |                        ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> src/utp/stream.rs:31:25
[INFO] [stdout]    |
[INFO] [stdout] 31 |     fn write(&mut self, buf: &[u8]) -> io::Result<usize> {
[INFO] [stdout]    |                         ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn on_syn(&self, seq_num: u16) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:53:24
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn on_state(&self, seq_num: u16, ack_num: u16) {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ack_num`
[INFO] [stdout]   --> src/utp/conn.rs:53:38
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn on_state(&self, seq_num: u16, ack_num: u16) {
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ack_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn on_data(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> src/utp/conn.rs:58:37
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn on_data(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn on_fin(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> src/utp/conn.rs:62:36
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn on_fin(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/utp/conn.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn retransmit_lost_packets(now: u32) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stream`
[INFO] [stdout]   --> src/lib.rs:25:17
[INFO] [stdout]    |
[INFO] [stdout] 25 |         for mut stream in socket.incoming() {
[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]   --> src/lib.rs:25:13
[INFO] [stdout]    |
[INFO] [stdout] 25 |         for mut stream in socket.incoming() {
[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] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utp` (lib test) due to 1 previous error; 25 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:49:22
[INFO] [stdout]    |
[INFO] [stdout] 49 |     fn on_syn(&self, seq_num: u16) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:53:24
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn on_state(&self, seq_num: u16, ack_num: u16) {
[INFO] [stdout]    |                        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `ack_num`
[INFO] [stdout]   --> src/utp/conn.rs:53:38
[INFO] [stdout]    |
[INFO] [stdout] 53 |     fn on_state(&self, seq_num: u16, ack_num: u16) {
[INFO] [stdout]    |                                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_ack_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:58:23
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn on_data(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                       ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> src/utp/conn.rs:58:37
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn on_data(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                                     ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `seq_num`
[INFO] [stdout]   --> src/utp/conn.rs:62:22
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn on_fin(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                      ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_seq_num`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `payload`
[INFO] [stdout]   --> src/utp/conn.rs:62:36
[INFO] [stdout]    |
[INFO] [stdout] 62 |     fn on_fin(&self, seq_num: u16, payload: &Vec<u8>) {
[INFO] [stdout]    |                                    ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_payload`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `now`
[INFO] [stdout]   --> src/utp/conn.rs:70:32
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn retransmit_lost_packets(now: u32) {
[INFO] [stdout]    |                                ^^^ help: if this is intentional, prefix it with an underscore: `_now`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `utp` (lib) due to 1 previous error; 17 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "3aee5006a34a9591a7390d8c27b78bed422a10124deebefc9d7672400fb9339c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aee5006a34a9591a7390d8c27b78bed422a10124deebefc9d7672400fb9339c", kill_on_drop: false }`
[INFO] [stdout] 3aee5006a34a9591a7390d8c27b78bed422a10124deebefc9d7672400fb9339c
