[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#96df4943409564a187894018f15f795426dc2e1f for pr-118968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNotNorom%2Fprotohackers" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NotNorom/protohackers on toolchain 96df4943409564a187894018f15f795426dc2e1f [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+96df4943409564a187894018f15f795426dc2e1f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-2-tc1/source/Cargo.toml [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" "+96df4943409564a187894018f15f795426dc2e1f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking NotNorom/protohackers against try#7e4f74fb8736fea8f455bb6e094122965ae8f4cd for pr-118968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNotNorom%2Fprotohackers" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NotNorom/protohackers on toolchain 7e4f74fb8736fea8f455bb6e094122965ae8f4cd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-2-tc2/source/Cargo.toml [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" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [INFO] checking NotNorom/protohackers against try#7e4f74fb8736fea8f455bb6e094122965ae8f4cd for pr-118968 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FNotNorom%2Fprotohackers" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/NotNorom/protohackers on toolchain 7e4f74fb8736fea8f455bb6e094122965ae8f4cd [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [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-2-tc2/source/Cargo.toml [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" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Updating crates.io index [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded primes v0.3.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 6c10541529d2208db4405a259c22f6f20a42161cb2e2186ea032c7c890212248 [INFO] running `Command { std: "docker" "start" "-a" "6c10541529d2208db4405a259c22f6f20a42161cb2e2186ea032c7c890212248", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "6c10541529d2208db4405a259c22f6f20a42161cb2e2186ea032c7c890212248", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "6c10541529d2208db4405a259c22f6f20a42161cb2e2186ea032c7c890212248", kill_on_drop: false }` [INFO] [stdout] 6c10541529d2208db4405a259c22f6f20a42161cb2e2186ea032c7c890212248 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+7e4f74fb8736fea8f455bb6e094122965ae8f4cd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 956657cbaaa4bff16e09b14bf2a2682f15283f9ce6bc0735fdd23fcaa944ce97 [INFO] running `Command { std: "docker" "start" "-a" "956657cbaaa4bff16e09b14bf2a2682f15283f9ce6bc0735fdd23fcaa944ce97", kill_on_drop: false }` [INFO] [stderr] Compiling syn v1.0.99 [INFO] [stderr] Compiling log v0.4.17 [INFO] [stderr] Checking once_cell v1.14.0 [INFO] [stderr] Compiling lock_api v0.4.8 [INFO] [stderr] Checking regex-syntax v0.6.27 [INFO] [stderr] Compiling serde_derive v1.0.144 [INFO] [stderr] Checking parking_lot_core v0.9.3 [INFO] [stderr] Compiling serde v1.0.144 [INFO] [stderr] Checking itoa v1.0.3 [INFO] [stderr] Checking tracing-core v0.1.30 [INFO] [stderr] Checking pin-project-lite v0.2.9 [INFO] [stderr] Compiling tokio v1.21.0 [INFO] [stderr] Compiling serde_json v1.0.85 [INFO] [stderr] Checking overload v0.1.1 [INFO] [stderr] Compiling anyhow v1.0.65 [INFO] [stderr] Checking time v0.3.15 [INFO] [stderr] Checking tracing-log v0.1.3 [INFO] [stderr] Checking parking_lot v0.12.1 [INFO] [stderr] Checking nu-ansi-term v0.46.0 [INFO] [stderr] Checking mio v0.8.4 [INFO] [stderr] Checking thread_local v1.1.4 [INFO] [stderr] Checking sharded-slab v0.1.4 [INFO] [stderr] Checking signal-hook-registry v1.4.0 [INFO] [stderr] Checking socket2 v0.4.7 [INFO] [stderr] Checking ryu v1.0.11 [INFO] [stderr] Checking bytes v1.2.1 [INFO] [stderr] Checking nom v7.1.1 [INFO] [stderr] Checking primes v0.3.0 [INFO] [stderr] Checking regex-automata v0.1.10 [INFO] [stderr] Checking regex v1.6.0 [INFO] [stderr] Checking matchers v0.1.0 [INFO] [stderr] Compiling tracing-attributes v0.1.23 [INFO] [stderr] Compiling tokio-macros v1.8.0 [INFO] [stderr] Checking tracing v0.1.37 [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)]` 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`, `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`, `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] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [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)]` 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)]` on by default [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)]` 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`, `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`, `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 variable: `roads` [INFO] [stdout] --> src/bin/problem6.rs:341:13 [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: 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: 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)]` 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: 14 warnings emitted [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] | ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unreachable_patterns)]` on by default [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)]` 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)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `roads` [INFO] [stdout] --> src/bin/problem6.rs:341:13 [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: 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: 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)]` 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: 14 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 11.90s [INFO] running `Command { std: "docker" "inspect" "956657cbaaa4bff16e09b14bf2a2682f15283f9ce6bc0735fdd23fcaa944ce97", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "956657cbaaa4bff16e09b14bf2a2682f15283f9ce6bc0735fdd23fcaa944ce97", kill_on_drop: false }` [INFO] [stdout] 956657cbaaa4bff16e09b14bf2a2682f15283f9ce6bc0735fdd23fcaa944ce97