[INFO] cloning repository https://github.com/AKiranB/dns-server-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/AKiranB/dns-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAKiranB%2Fdns-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAKiranB%2Fdns-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d0bc82c66d8bfe511af37374c2381f812c894bfe
[INFO] checking AKiranB/dns-server-rust against master#733108b6d4acaa93fe26ae281ea305aacd6aac4e for pr-148967
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAKiranB%2Fdns-server-rust" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/AKiranB/dns-server-rust
[INFO] finished tweaking git repo https://github.com/AKiranB/dns-server-rust
[INFO] tweaked toml for git repo https://github.com/AKiranB/dns-server-rust written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/AKiranB/dns-server-rust on toolchain 733108b6d4acaa93fe26ae281ea305aacd6aac4e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/AKiranB/dns-server-rust 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" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 84157f97cb13eda8e219025b6ef5ac7575a5c2a71519764523ed59fc76ad4d00
[INFO] running `Command { std: "docker" "start" "-a" "84157f97cb13eda8e219025b6ef5ac7575a5c2a71519764523ed59fc76ad4d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "84157f97cb13eda8e219025b6ef5ac7575a5c2a71519764523ed59fc76ad4d00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "84157f97cb13eda8e219025b6ef5ac7575a5c2a71519764523ed59fc76ad4d00", kill_on_drop: false }`
[INFO] [stdout] 84157f97cb13eda8e219025b6ef5ac7575a5c2a71519764523ed59fc76ad4d00
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+733108b6d4acaa93fe26ae281ea305aacd6aac4e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc2a59864457e45530ec9ebb8271641a058f7e3171908d2b89342c7d918ff42d
[INFO] running `Command { std: "docker" "start" "-a" "bc2a59864457e45530ec9ebb8271641a058f7e3171908d2b89342c7d918ff42d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.86
[INFO] [stderr]    Compiling thiserror v1.0.63
[INFO] [stderr]    Compiling anyhow v1.0.86
[INFO] [stderr]     Checking bytes v1.7.1
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.75
[INFO] [stderr]    Compiling thiserror-impl v1.0.63
[INFO] [stderr]     Checking codecrafters-dns-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DnsAnswer` and `DnsName`
[INFO] [stdout]  --> src/answer_section.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{DnsAnswer, DnsName};
[INFO] [stdout]   |             ^^^^^^^^^  ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |             let mut buf: [u8; 512] = [0; 512];
[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: unused variable: `connection`
[INFO] [stdout]    --> src/main.rs:298:17
[INFO] [stdout]     |
[INFO] [stdout] 298 |             let connection = UdpSocket::bind("0.0.0.0:0").unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/main.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |             let mut buf: [u8; 512] = [0; 512];
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_questions` is never used
[INFO] [stdout]  --> src/utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_questions(qdcount: u16, buf: &[u8]) -> (Vec<DnsQuestion>, Vec<usize>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_answers` is never used
[INFO] [stdout]   --> src/utils.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn build_answers(questions: &Vec<DnsQuestion>, offsets: Vec<usize>) -> Vec<DnsAnswer> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_answers` is never used
[INFO] [stdout]   --> src/utils.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn write_answers(answers: Vec<DnsAnswer>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_questions` is never used
[INFO] [stdout]   --> src/utils.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn write_questions(questions: Vec<DnsQuestion>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/main.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |             let mut buf: [u8; 512] = [0; 512];
[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: unused variable: `connection`
[INFO] [stdout]    --> src/main.rs:298:17
[INFO] [stdout]     |
[INFO] [stdout] 298 |             let connection = UdpSocket::bind("0.0.0.0:0").unwrap();
[INFO] [stdout]     |                 ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_connection`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]    --> src/main.rs:299:17
[INFO] [stdout]     |
[INFO] [stdout] 299 |             let mut buf: [u8; 512] = [0; 512];
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `read_questions` is never used
[INFO] [stdout]  --> src/utils.rs:4:8
[INFO] [stdout]   |
[INFO] [stdout] 4 | pub fn read_questions(qdcount: u16, buf: &[u8]) -> (Vec<DnsQuestion>, Vec<usize>) {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_answers` is never used
[INFO] [stdout]   --> src/utils.rs:25:8
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub fn build_answers(questions: &Vec<DnsQuestion>, offsets: Vec<usize>) -> Vec<DnsAnswer> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_answers` is never used
[INFO] [stdout]   --> src/utils.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn write_answers(answers: Vec<DnsAnswer>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `write_questions` is never used
[INFO] [stdout]   --> src/utils.rs:50:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | pub fn write_questions(questions: Vec<DnsQuestion>) -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.12s
[INFO] running `Command { std: "docker" "inspect" "bc2a59864457e45530ec9ebb8271641a058f7e3171908d2b89342c7d918ff42d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc2a59864457e45530ec9ebb8271641a058f7e3171908d2b89342c7d918ff42d", kill_on_drop: false }`
[INFO] [stdout] bc2a59864457e45530ec9ebb8271641a058f7e3171908d2b89342c7d918ff42d
