[INFO] cloning repository https://github.com/kobutomo/toytcp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/kobutomo/toytcp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobutomo%2Ftoytcp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobutomo%2Ftoytcp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] deb5e09f27bac883ced4f3588178601f0dafdf2f
[INFO] checking kobutomo/toytcp against master#6d05c430d2f0573bf98320bb1d2457a72ea1e67f for pr-116607
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fkobutomo%2Ftoytcp" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/kobutomo/toytcp on toolchain 6d05c430d2f0573bf98320bb1d2457a72ea1e67f
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/kobutomo/toytcp
[INFO] finished tweaking git repo https://github.com/kobutomo/toytcp
[INFO] tweaked toml for git repo https://github.com/kobutomo/toytcp written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/kobutomo/toytcp 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" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 31b6c1ff7b7c35b23fda052e3e854a3c3c4ee80939fcaf3c25cbbe9458eadde5
[INFO] running `Command { std: "docker" "start" "-a" "31b6c1ff7b7c35b23fda052e3e854a3c3c4ee80939fcaf3c25cbbe9458eadde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "31b6c1ff7b7c35b23fda052e3e854a3c3c4ee80939fcaf3c25cbbe9458eadde5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "31b6c1ff7b7c35b23fda052e3e854a3c3c4ee80939fcaf3c25cbbe9458eadde5", kill_on_drop: false }`
[INFO] [stdout] 31b6c1ff7b7c35b23fda052e3e854a3c3c4ee80939fcaf3c25cbbe9458eadde5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:023092b8bfa974c7f3e45c5ce651cc8dd3afd5e76915d5995b8dacd3032bf956" "/opt/rustwide/cargo-home/bin/cargo" "+6d05c430d2f0573bf98320bb1d2457a72ea1e67f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] adaffbc65206e4c65eee12a36fb12debc86154d86e513d47c0c661deb8c34cee
[INFO] running `Command { std: "docker" "start" "-a" "adaffbc65206e4c65eee12a36fb12debc86154d86e513d47c0c661deb8c34cee", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.132
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling rustc-serialize v0.3.24
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]     Checking pnet_base v0.27.2
[INFO] [stderr]    Compiling anyhow v1.0.63
[INFO] [stderr]     Checking ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling pnet v0.27.2
[INFO] [stderr]     Checking pnet_macros_support v0.27.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling aho-corasick v0.7.19
[INFO] [stderr]     Checking getrandom v0.2.7
[INFO] [stderr]     Checking pnet_sys v0.27.2
[INFO] [stderr]     Checking nix v0.25.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling syntex_pos v0.42.0
[INFO] [stderr]    Compiling regex v1.6.0
[INFO] [stderr]    Compiling syntex_errors v0.42.0
[INFO] [stderr]     Checking ctrlc v3.2.3
[INFO] [stderr]    Compiling syntex_syntax v0.42.0
[INFO] [stderr]     Checking ipnetwork v0.17.0
[INFO] [stderr]     Checking pnet_datalink v0.27.2
[INFO] [stderr]    Compiling syntex v0.42.2
[INFO] [stderr]    Compiling pnet_macros v0.27.2
[INFO] [stderr]    Compiling pnet_packet v0.27.2
[INFO] [stderr]     Checking pnet_transport v0.27.2
[INFO] [stderr]     Checking toytcp v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tcpflags`
[INFO] [stdout]  --> src/packet.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tcpflags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ip::IpNextHeaderProtocols`, `tcp::TcpPacket`
[INFO] [stdout]  --> src/packet.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use pnet::packet::{ip::IpNextHeaderProtocols, tcp::TcpPacket, Packet};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pnet::util`
[INFO] [stdout]  --> src/packet.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use pnet::util;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Debug`, `self`
[INFO] [stdout]  --> src/packet.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{self, Debug};
[INFO] [stdout]   |                ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::Ipv4Addr`
[INFO] [stdout]  --> src/packet.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::net::Ipv4Addr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tcpflags`
[INFO] [stdout]  --> src/socket.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tcpflags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tcpflags`
[INFO] [stdout]  --> src/packet.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::tcpflags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]  --> src/socket.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow::{Context, Result};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Packet`
[INFO] [stdout]  --> src/socket.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pnet::packet::{ip::IpNextHeaderProtocols, Packet};
[INFO] [stdout]   |                                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ip::IpNextHeaderProtocols`, `tcp::TcpPacket`
[INFO] [stdout]  --> src/packet.rs:2:20
[INFO] [stdout]   |
[INFO] [stdout] 2 | use pnet::packet::{ip::IpNextHeaderProtocols, tcp::TcpPacket, Packet};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pnet::util`
[INFO] [stdout]  --> src/socket.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use pnet::util;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pnet::util`
[INFO] [stdout]  --> src/packet.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use pnet::util;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/socket.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Debug`, `self`
[INFO] [stdout]  --> src/packet.rs:5:16
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::fmt::{self, Debug};
[INFO] [stdout]   |                ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `self`
[INFO] [stdout]  --> src/socket.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::{self, Display};
[INFO] [stdout]   |                ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::Ipv4Addr`
[INFO] [stdout]  --> src/packet.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use std::net::Ipv4Addr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]   --> src/socket.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::SystemTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::tcpflags`
[INFO] [stdout]  --> src/socket.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::tcpflags;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::packet::TCPPacket`
[INFO] [stdout]  --> src/tcp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::packet::TCPPacket;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]  --> src/socket.rs:3:14
[INFO] [stdout]   |
[INFO] [stdout] 3 | use anyhow::{Context, Result};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Packet`
[INFO] [stdout]  --> src/socket.rs:4:47
[INFO] [stdout]   |
[INFO] [stdout] 4 | use pnet::packet::{ip::IpNextHeaderProtocols, Packet};
[INFO] [stdout]   |                                               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpStatus`, `self`
[INFO] [stdout]  --> src/tcp.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::socket::{self, SockID, Socket, TcpStatus};
[INFO] [stdout]   |                     ^^^^                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pnet::util`
[INFO] [stdout]  --> src/socket.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use pnet::util;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]  --> src/tcp.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | use anyhow::{Context, Result};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::VecDeque`
[INFO] [stdout]  --> src/socket.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::collections::VecDeque;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Packet`, `ip::IpNextHeaderProtocols`, `tcp::TcpPacket`
[INFO] [stdout]  --> src/tcp.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use pnet::packet::{ip::IpNextHeaderProtocols, tcp::TcpPacket, Packet};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TransportChannelType`, `self`
[INFO] [stdout]  --> src/tcp.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use pnet::transport::{self, TransportChannelType};
[INFO] [stdout]   |                       ^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Display`, `self`
[INFO] [stdout]  --> src/socket.rs:8:16
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::fmt::{self, Display};
[INFO] [stdout]   |                ^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> src/tcp.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::{rngs::ThreadRng, Rng};
[INFO] [stdout]   |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::time::SystemTime`
[INFO] [stdout]   --> src/socket.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::time::SystemTime;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/tcp.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::net::{IpAddr, Ipv4Addr};
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::packet::TCPPacket`
[INFO] [stdout]  --> src/tcp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::packet::TCPPacket;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]   --> src/tcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::process::Command;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TcpStatus`, `self`
[INFO] [stdout]  --> src/tcp.rs:2:21
[INFO] [stdout]   |
[INFO] [stdout] 2 | use crate::socket::{self, SockID, Socket, TcpStatus};
[INFO] [stdout]   |                     ^^^^                  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Condvar`, `Mutex`, `RwLockWriteGuard`, `RwLock`
[INFO] [stdout]   --> src/tcp.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::{Arc, Condvar, Mutex, RwLock, RwLockWriteGuard};
[INFO] [stdout]    |                 ^^^  ^^^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Context`
[INFO] [stdout]  --> src/tcp.rs:4:14
[INFO] [stdout]   |
[INFO] [stdout] 4 | use anyhow::{Context, Result};
[INFO] [stdout]   |              ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `SystemTime`
[INFO] [stdout]   --> src/tcp.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Packet`, `ip::IpNextHeaderProtocols`, `tcp::TcpPacket`
[INFO] [stdout]  --> src/tcp.rs:5:20
[INFO] [stdout]   |
[INFO] [stdout] 5 | use pnet::packet::{ip::IpNextHeaderProtocols, tcp::TcpPacket, Packet};
[INFO] [stdout]   |                    ^^^^^^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `str`, `thread`
[INFO] [stdout]   --> src/tcp.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{cmp, ops::Range, str, thread};
[INFO] [stdout]    |           ^^^              ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TransportChannelType`, `self`
[INFO] [stdout]  --> src/tcp.rs:6:23
[INFO] [stdout]   |
[INFO] [stdout] 6 | use pnet::transport::{self, TransportChannelType};
[INFO] [stdout]   |                       ^^^^  ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Rng`
[INFO] [stdout]  --> src/tcp.rs:7:29
[INFO] [stdout]   |
[INFO] [stdout] 7 | use rand::{rngs::ThreadRng, Rng};
[INFO] [stdout]   |                             ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `IpAddr`
[INFO] [stdout]  --> src/tcp.rs:9:16
[INFO] [stdout]   |
[INFO] [stdout] 9 | use std::net::{IpAddr, Ipv4Addr};
[INFO] [stdout]   |                ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::Command`
[INFO] [stdout]   --> src/tcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use std::process::Command;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Arc`, `Condvar`, `Mutex`, `RwLockWriteGuard`, `RwLock`
[INFO] [stdout]   --> src/tcp.rs:11:17
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::sync::{Arc, Condvar, Mutex, RwLock, RwLockWriteGuard};
[INFO] [stdout]    |                 ^^^  ^^^^^^^  ^^^^^  ^^^^^^  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `SystemTime`
[INFO] [stdout]   --> src/tcp.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | use std::time::{Duration, SystemTime};
[INFO] [stdout]    |                 ^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `str`, `thread`
[INFO] [stdout]   --> src/tcp.rs:13:11
[INFO] [stdout]    |
[INFO] [stdout] 13 | use std::{cmp, ops::Range, str, thread};
[INFO] [stdout]    |           ^^^              ^^^  ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/tcp.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn select_unused_port(&self, rng: &mut ThreadRng) -> Result<u16> {
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rng`
[INFO] [stdout]   --> src/tcp.rs:33:38
[INFO] [stdout]    |
[INFO] [stdout] 33 |     pub fn select_unused_port(&self, rng: &mut ThreadRng) -> Result<u16> {
[INFO] [stdout]    |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_rng`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/tcp.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn get_source_addr_to(addr: Ipv4Addr) -> Result<Ipv4Addr> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `addr`
[INFO] [stdout]   --> src/tcp.rs:52:23
[INFO] [stdout]    |
[INFO] [stdout] 52 | fn get_source_addr_to(addr: Ipv4Addr) -> Result<Ipv4Addr> {
[INFO] [stdout]    |                       ^^^^ help: if this is intentional, prefix it with an underscore: `_addr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SOCKET_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/socket.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const SOCKET_BUFFER_SIZE: usize = 4380;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TcpStatus` is never used
[INFO] [stdout]   --> src/socket.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum TcpStatus {}
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UNDETERMINED_IP_ADDR` is never used
[INFO] [stdout]   --> src/tcp.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const UNDETERMINED_IP_ADDR: std::net::Ipv4Addr = Ipv4Addr::new(0, 0, 0, 0);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UNDETERMINED_PORT` is never used
[INFO] [stdout]   --> src/tcp.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const UNDETERMINED_PORT: u16 = 0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TRANSMITTION` is never used
[INFO] [stdout]   --> src/tcp.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MAX_TRANSMITTION: u8 = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RETRANSMITTION_TIMEOUT` is never used
[INFO] [stdout]   --> src/tcp.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const RETRANSMITTION_TIMEOUT: u64 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SOCKET_BUFFER_SIZE` is never used
[INFO] [stdout]   --> src/socket.rs:12:7
[INFO] [stdout]    |
[INFO] [stdout] 12 | const SOCKET_BUFFER_SIZE: usize = 4380;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MSS` is never used
[INFO] [stdout]   --> src/tcp.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MSS: usize = 1460;
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TcpStatus` is never used
[INFO] [stdout]   --> src/socket.rs:27:10
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub enum TcpStatus {}
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PORT_RANGE` is never used
[INFO] [stdout]   --> src/tcp.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const PORT_RANGE: Range<u16> = 40000..60000;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sockets` is never read
[INFO] [stdout]   --> src/tcp.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct TCP {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 23 |     sockets: HashMap<SockID, Socket>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UNDETERMINED_IP_ADDR` is never used
[INFO] [stdout]   --> src/tcp.rs:15:7
[INFO] [stdout]    |
[INFO] [stdout] 15 | const UNDETERMINED_IP_ADDR: std::net::Ipv4Addr = Ipv4Addr::new(0, 0, 0, 0);
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CWR` is never used
[INFO] [stdout]  --> src/tcpflags.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const CWR: u8 = 1 << 7;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ECE` is never used
[INFO] [stdout]  --> src/tcpflags.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const ECE: u8 = 1 << 6;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `UNDETERMINED_PORT` is never used
[INFO] [stdout]   --> src/tcp.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 | const UNDETERMINED_PORT: u16 = 0;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `URG` is never used
[INFO] [stdout]  --> src/tcpflags.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const URG: u8 = 1 << 5;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MAX_TRANSMITTION` is never used
[INFO] [stdout]   --> src/tcp.rs:17:7
[INFO] [stdout]    |
[INFO] [stdout] 17 | const MAX_TRANSMITTION: u8 = 5;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ACK` is never used
[INFO] [stdout]  --> src/tcpflags.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const ACK: u8 = 1 << 4;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RETRANSMITTION_TIMEOUT` is never used
[INFO] [stdout]   --> src/tcp.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | const RETRANSMITTION_TIMEOUT: u64 = 3;
[INFO] [stdout]    |       ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PSH` is never used
[INFO] [stdout]  --> src/tcpflags.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const PSH: u8 = 1 << 3;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `MSS` is never used
[INFO] [stdout]   --> src/tcp.rs:19:7
[INFO] [stdout]    |
[INFO] [stdout] 19 | const MSS: usize = 1460;
[INFO] [stdout]    |       ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RST` is never used
[INFO] [stdout]  --> src/tcpflags.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const RST: u8 = 1 << 2;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PORT_RANGE` is never used
[INFO] [stdout]   --> src/tcp.rs:20:7
[INFO] [stdout]    |
[INFO] [stdout] 20 | const PORT_RANGE: Range<u16> = 40000..60000;
[INFO] [stdout]    |       ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FIN` is never used
[INFO] [stdout]  --> src/tcpflags.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const FIN: u8 = 1;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `sockets` is never read
[INFO] [stdout]   --> src/tcp.rs:23:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | pub struct TCP {
[INFO] [stdout]    |            --- field in this struct
[INFO] [stdout] 23 |     sockets: HashMap<SockID, Socket>,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `CWR` is never used
[INFO] [stdout]  --> src/tcpflags.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | pub const CWR: u8 = 1 << 7;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ECE` is never used
[INFO] [stdout]  --> src/tcpflags.rs:2:11
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub const ECE: u8 = 1 << 6;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `URG` is never used
[INFO] [stdout]  --> src/tcpflags.rs:3:11
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub const URG: u8 = 1 << 5;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `ACK` is never used
[INFO] [stdout]  --> src/tcpflags.rs:4:11
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub const ACK: u8 = 1 << 4;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PSH` is never used
[INFO] [stdout]  --> src/tcpflags.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub const PSH: u8 = 1 << 3;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `RST` is never used
[INFO] [stdout]  --> src/tcpflags.rs:6:11
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub const RST: u8 = 1 << 2;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `FIN` is never used
[INFO] [stdout]  --> src/tcpflags.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const FIN: u8 = 1;
[INFO] [stdout]   |           ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 41 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `io`, `str`
[INFO] [stdout]  --> examples/echoclient.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{env, io, net::Ipv4Addr, str};
[INFO] [stdout]   |                ^^                 ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.72s
[INFO] [stderr] warning: the following packages contain code that will be rejected by a future version of Rust: rustc-serialize v0.3.24
[INFO] [stderr] note: to see what the problems were, use the option `--future-incompat-report`, or run `cargo report future-incompatibilities --id 1`
[INFO] running `Command { std: "docker" "inspect" "adaffbc65206e4c65eee12a36fb12debc86154d86e513d47c0c661deb8c34cee", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "adaffbc65206e4c65eee12a36fb12debc86154d86e513d47c0c661deb8c34cee", kill_on_drop: false }`
[INFO] [stdout] adaffbc65206e4c65eee12a36fb12debc86154d86e513d47c0c661deb8c34cee