[INFO] cloning repository https://github.com/NotNorom/protohackers
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/NotNorom/protohackers" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNotNorom%2Fprotohackers", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNotNorom%2Fprotohackers'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 973cf0d437c59c0999624dc0d3a12abcf88873bb
[INFO] checking NotNorom/protohackers against master#bca37a20bd376ce3fd138e7cdee7fe704e0f8814 for pr-139493-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNotNorom%2Fprotohackers" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/NotNorom/protohackers
[INFO] finished tweaking git repo https://github.com/NotNorom/protohackers
[INFO] tweaked toml for git repo https://github.com/NotNorom/protohackers written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/NotNorom/protohackers on toolchain bca37a20bd376ce3fd138e7cdee7fe704e0f8814
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/NotNorom/protohackers 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" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracing-core v0.1.30
[INFO] [stderr]   Downloaded primes v0.3.0
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
[INFO] [stderr]   Downloaded tracing-subscriber v0.3.16
[INFO] [stderr]   Downloaded time v0.3.15
[INFO] [stderr]   Downloaded tokio v1.21.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 81afee3c8cdf7f5546a2444a6ad8ba524b4d8c660f90cb8d1827b2fa022688ea
[INFO] running `Command { std: "docker" "start" "-a" "81afee3c8cdf7f5546a2444a6ad8ba524b4d8c660f90cb8d1827b2fa022688ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "81afee3c8cdf7f5546a2444a6ad8ba524b4d8c660f90cb8d1827b2fa022688ea", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "81afee3c8cdf7f5546a2444a6ad8ba524b4d8c660f90cb8d1827b2fa022688ea", kill_on_drop: false }`
[INFO] [stdout] 81afee3c8cdf7f5546a2444a6ad8ba524b4d8c660f90cb8d1827b2fa022688ea
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+bca37a20bd376ce3fd138e7cdee7fe704e0f8814" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d814dda8fe918d274492c9e1361b058da081e966589490de9aa5827431540312
[INFO] running `Command { std: "docker" "start" "-a" "d814dda8fe918d274492c9e1361b058da081e966589490de9aa5827431540312", kill_on_drop: false }`
[INFO] [stderr]     Checking once_cell v1.14.0
[INFO] [stderr]     Checking regex-syntax v0.6.27
[INFO] [stderr]    Compiling serde v1.0.144
[INFO] [stderr]    Compiling tokio v1.21.0
[INFO] [stderr]    Compiling anyhow v1.0.65
[INFO] [stderr]    Compiling serde_json v1.0.85
[INFO] [stderr]     Checking socket2 v0.4.7
[INFO] [stderr]     Checking time v0.3.15
[INFO] [stderr]     Checking ryu v1.0.11
[INFO] [stderr]    Compiling tracing-attributes v0.1.23
[INFO] [stderr]     Checking nom v7.1.1
[INFO] [stderr]     Checking primes v0.3.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking thread_local v1.1.4
[INFO] [stderr]     Checking tracing-log v0.1.3
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]     Checking regex-automata v0.1.10
[INFO] [stderr]     Checking regex v1.6.0
[INFO] [stderr]     Checking matchers v0.1.0
[INFO] [stderr]     Checking tracing-subscriber v0.3.16
[INFO] [stderr]     Checking protohackers v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/bin/problem6.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/bin/problem6.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncBufReadExt`, `AsyncReadExt`, `AsyncWriteExt`, and `ReadBuf`
[INFO] [stdout]  --> src/bin/problem6.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader, BufWriter, ReadBuf};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^^                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::tcp::ReadHalf`
[INFO] [stdout]  --> src/bin/problem6.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::net::tcp::ReadHalf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::select`
[INFO] [stdout]   --> src/bin/problem6.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::select;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instrument`, `info_span`, and `warn`
[INFO] [stdout]   --> src/bin/problem6.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tracing::{error, info, info_span, warn, Instrument, instrument};
[INFO] [stdout]    |                            ^^^^^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::Borrow`
[INFO] [stdout]  --> src/bin/problem6.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::borrow::Borrow;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryFrom`
[INFO] [stdout]  --> src/bin/problem6.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::convert::TryFrom;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `AsyncBufReadExt`, `AsyncReadExt`, `AsyncWriteExt`, and `ReadBuf`
[INFO] [stdout]  --> src/bin/problem6.rs:7:17
[INFO] [stdout]   |
[INFO] [stdout] 7 | use tokio::io::{AsyncBufReadExt, AsyncReadExt, AsyncWriteExt, BufReader, BufWriter, ReadBuf};
[INFO] [stdout]   |                 ^^^^^^^^^^^^^^^  ^^^^^^^^^^^^  ^^^^^^^^^^^^^                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::net::tcp::ReadHalf`
[INFO] [stdout]  --> src/bin/problem6.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use tokio::net::tcp::ReadHalf;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `tokio::select`
[INFO] [stdout]   --> src/bin/problem6.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use tokio::select;
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instrument`, `info_span`, and `warn`
[INFO] [stdout]   --> src/bin/problem6.rs:12:28
[INFO] [stdout]    |
[INFO] [stdout] 12 | use tracing::{error, info, info_span, warn, Instrument, instrument};
[INFO] [stdout]    |                            ^^^^^^^^^  ^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/problem6.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 _ => bail!("uhhh"),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/bin/problem6.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout]  94 |                 Self::Error(error) => {
[INFO] [stdout]     |                 ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 104 |                 Self::Ticket(ticket) => {
[INFO] [stdout]     |                 -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 120 |                 Self::Heartbeat(heartbeat) => {
[INFO] [stdout]     |                 -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 124 |                 _ => bail!("uhhh"),
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/problem6.rs:229:24
[INFO] [stdout]     |
[INFO] [stdout] 229 | async fn handle_client(mut stream: TcpStream, addr: SocketAddr) -> Result<()> {
[INFO] [stdout]     |                        ----^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/problem6.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let mut roads = [Road { speed_limit: 0 }; u16::MAX as usize];
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heartbeat`
[INFO] [stdout]    --> src/bin/problem6.rs:120:33
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 Self::Heartbeat(heartbeat) => {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heartbeat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `roads`
[INFO] [stdout]    --> src/bin/problem6.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let mut roads = [Road { speed_limit: 0 }; u16::MAX as usize];
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_roads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_tickets` is never used
[INFO] [stdout]    --> src/bin/problem6.rs:340:10
[INFO] [stdout]     |
[INFO] [stdout] 340 | async fn handle_tickets() -> Result<()> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Ticket` is never constructed
[INFO] [stdout]   --> src/bin/problem6.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub enum ServerMessage {
[INFO] [stdout]    |              ------------- variant in this enum
[INFO] [stdout] 86 |         Error(Error),
[INFO] [stdout] 87 |         Ticket(Ticket),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `msg` is never used
[INFO] [stdout]    --> src/bin/problem6.rs:141:16
[INFO] [stdout]     |
[INFO] [stdout] 134 |     impl Error {
[INFO] [stdout]     |     ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |         pub fn msg(&self) -> &String {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `plate` and `timestamp` are never read
[INFO] [stdout]    --> src/bin/problem6.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub struct Plate {
[INFO] [stdout]     |                ----- fields in this struct
[INFO] [stdout] 148 |         pub plate: String,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout] 149 |         pub timestamp: u32,
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Plate` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `road`, `mile`, and `limit` are never read
[INFO] [stdout]    --> src/bin/problem6.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub struct IAmCamera {
[INFO] [stdout]     |                --------- fields in this struct
[INFO] [stdout] 180 |         pub road: u16,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 181 |         pub mile: u16,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 182 |         /// in miles per hour
[INFO] [stdout] 183 |         pub limit: u16,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IAmCamera` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `numroads` and `roads` are never read
[INFO] [stdout]    --> src/bin/problem6.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub struct IAmDispatcher {
[INFO] [stdout]     |                ------------- fields in this struct
[INFO] [stdout] 188 |         pub numroads: u8,
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 189 |         pub roads: Vec<u16>,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IAmDispatcher` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]    --> src/bin/problem6.rs:195:22
[INFO] [stdout]     |
[INFO] [stdout] 195 |         Dispatcher { state: IAmDispatcher },
[INFO] [stdout]     |         ----------   ^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ClientState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Road` is never constructed
[INFO] [stdout]    --> src/bin/problem6.rs:200:16
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub struct Road {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/bin/problem6.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout] 124 |                 _ => bail!("uhhh"),
[INFO] [stdout]     |                 ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]    --> src/bin/problem6.rs:124:17
[INFO] [stdout]     |
[INFO] [stdout]  94 |                 Self::Error(error) => {
[INFO] [stdout]     |                 ------------------ matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 104 |                 Self::Ticket(ticket) => {
[INFO] [stdout]     |                 -------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 120 |                 Self::Heartbeat(heartbeat) => {
[INFO] [stdout]     |                 -------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 124 |                 _ => bail!("uhhh"),
[INFO] [stdout]     |                 ^ collectively making this unreachable
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/problem6.rs:229:24
[INFO] [stdout]     |
[INFO] [stdout] 229 | async fn handle_client(mut stream: TcpStream, addr: SocketAddr) -> Result<()> {
[INFO] [stdout]     |                        ----^^^^^^
[INFO] [stdout]     |                        |
[INFO] [stdout]     |                        help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/bin/problem6.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let mut roads = [Road { speed_limit: 0 }; u16::MAX as usize];
[INFO] [stdout]     |         ----^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `heartbeat`
[INFO] [stdout]    --> src/bin/problem6.rs:120:33
[INFO] [stdout]     |
[INFO] [stdout] 120 |                 Self::Heartbeat(heartbeat) => {
[INFO] [stdout]     |                                 ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_heartbeat`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `roads`
[INFO] [stdout]    --> src/bin/problem6.rs:341:9
[INFO] [stdout]     |
[INFO] [stdout] 341 |     let mut roads = [Road { speed_limit: 0 }; u16::MAX as usize];
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_roads`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `handle_tickets` is never used
[INFO] [stdout]    --> src/bin/problem6.rs:340:10
[INFO] [stdout]     |
[INFO] [stdout] 340 | async fn handle_tickets() -> Result<()> {
[INFO] [stdout]     |          ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Ticket` is never constructed
[INFO] [stdout]   --> src/bin/problem6.rs:87:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |     pub enum ServerMessage {
[INFO] [stdout]    |              ------------- variant in this enum
[INFO] [stdout] 86 |         Error(Error),
[INFO] [stdout] 87 |         Ticket(Ticket),
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ServerMessage` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `msg` is never used
[INFO] [stdout]    --> src/bin/problem6.rs:141:16
[INFO] [stdout]     |
[INFO] [stdout] 134 |     impl Error {
[INFO] [stdout]     |     ---------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 141 |         pub fn msg(&self) -> &String {
[INFO] [stdout]     |                ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `plate` and `timestamp` are never read
[INFO] [stdout]    --> src/bin/problem6.rs:148:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub struct Plate {
[INFO] [stdout]     |                ----- fields in this struct
[INFO] [stdout] 148 |         pub plate: String,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout] 149 |         pub timestamp: u32,
[INFO] [stdout]     |             ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Plate` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `road`, `mile`, and `limit` are never read
[INFO] [stdout]    --> src/bin/problem6.rs:180:13
[INFO] [stdout]     |
[INFO] [stdout] 179 |     pub struct IAmCamera {
[INFO] [stdout]     |                --------- fields in this struct
[INFO] [stdout] 180 |         pub road: u16,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 181 |         pub mile: u16,
[INFO] [stdout]     |             ^^^^
[INFO] [stdout] 182 |         /// in miles per hour
[INFO] [stdout] 183 |         pub limit: u16,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IAmCamera` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `numroads` and `roads` are never read
[INFO] [stdout]    --> src/bin/problem6.rs:188:13
[INFO] [stdout]     |
[INFO] [stdout] 187 |     pub struct IAmDispatcher {
[INFO] [stdout]     |                ------------- fields in this struct
[INFO] [stdout] 188 |         pub numroads: u8,
[INFO] [stdout]     |             ^^^^^^^^
[INFO] [stdout] 189 |         pub roads: Vec<u16>,
[INFO] [stdout]     |             ^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `IAmDispatcher` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `state` is never read
[INFO] [stdout]    --> src/bin/problem6.rs:195:22
[INFO] [stdout]     |
[INFO] [stdout] 195 |         Dispatcher { state: IAmDispatcher },
[INFO] [stdout]     |         ----------   ^^^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `ClientState` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Road` is never constructed
[INFO] [stdout]    --> src/bin/problem6.rs:200:16
[INFO] [stdout]     |
[INFO] [stdout] 200 |     pub struct Road {
[INFO] [stdout]     |                ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.84s
[INFO] running `Command { std: "docker" "inspect" "d814dda8fe918d274492c9e1361b058da081e966589490de9aa5827431540312", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d814dda8fe918d274492c9e1361b058da081e966589490de9aa5827431540312", kill_on_drop: false }`
[INFO] [stdout] d814dda8fe918d274492c9e1361b058da081e966589490de9aa5827431540312
