[INFO] cloning repository https://github.com/ammar-abu-yaman/dns-forwarder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ammar-abu-yaman/dns-forwarder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammar-abu-yaman%2Fdns-forwarder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammar-abu-yaman%2Fdns-forwarder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 098cf4d514bcf9a11f3c48b1c478fc7cada22585
[INFO] checking ammar-abu-yaman/dns-forwarder against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fammar-abu-yaman%2Fdns-forwarder" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ammar-abu-yaman/dns-forwarder
[INFO] finished tweaking git repo https://github.com/ammar-abu-yaman/dns-forwarder
[INFO] tweaked toml for git repo https://github.com/ammar-abu-yaman/dns-forwarder written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ammar-abu-yaman/dns-forwarder on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ammar-abu-yaman/dns-forwarder 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f892eff98ea6c0524d9ccdaa7b136e0bf4ab0b4bd43c37517be8316d68e91e88
[INFO] running `Command { std: "docker" "start" "-a" "f892eff98ea6c0524d9ccdaa7b136e0bf4ab0b4bd43c37517be8316d68e91e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f892eff98ea6c0524d9ccdaa7b136e0bf4ab0b4bd43c37517be8316d68e91e88", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f892eff98ea6c0524d9ccdaa7b136e0bf4ab0b4bd43c37517be8316d68e91e88", kill_on_drop: false }`
[INFO] [stdout] f892eff98ea6c0524d9ccdaa7b136e0bf4ab0b4bd43c37517be8316d68e91e88
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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 -Dunmustuse_in_always_ok" "-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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 70cbedd355e7b12e9adfb652a1f18341f72431eb7888382750b7fb0c6b15c161
[INFO] running `Command { std: "docker" "start" "-a" "70cbedd355e7b12e9adfb652a1f18341f72431eb7888382750b7fb0c6b15c161", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling binrw_derive v0.14.1
[INFO] [stderr]    Compiling owo-colors v3.5.0
[INFO] [stderr]    Compiling anyhow v1.0.95
[INFO] [stderr]    Compiling binrw v0.14.1
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]     Checking array-init v2.1.0
[INFO] [stderr]     Checking bytes v1.10.0
[INFO] [stderr]     Checking clap_builder v4.5.30
[INFO] [stderr]     Checking bytebuffer v2.3.0
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]    Compiling darling_core v0.20.10
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.28
[INFO] [stderr]    Compiling modular-bitfield-msb-impl v0.11.2
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]    Compiling darling_macro v0.20.10
[INFO] [stderr]     Checking modular-bitfield-msb v0.11.2
[INFO] [stderr]    Compiling darling v0.20.10
[INFO] [stderr]    Compiling derive_builder_core v0.20.2
[INFO] [stderr]    Compiling derive_builder_macro v0.20.2
[INFO] [stderr]     Checking clap v4.5.30
[INFO] [stderr]     Checking derive_builder v0.20.2
[INFO] [stderr]     Checking codecrafters-dns-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `IpAddr` and `UdpSocket`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::{IpAddr, UdpSocket};
[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: `crate::server::Server`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::server::Server;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> src/server.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::Cursor, iter, net::{ SocketAddr, UdpSocket}
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DnsRecord`
[INFO] [stdout]  --> src/server.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 |     message::{DnsMessageType, DnsRecord},
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `IpAddr` and `UdpSocket`
[INFO] [stdout]  --> src/main.rs:1:16
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::net::{IpAddr, UdpSocket};
[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: `crate::server::Server`
[INFO] [stdout]  --> src/main.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use crate::server::Server;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `iter`
[INFO] [stdout]  --> src/server.rs:2:17
[INFO] [stdout]   |
[INFO] [stdout] 2 |     io::Cursor, iter, net::{ SocketAddr, UdpSocket}
[INFO] [stdout]   |                 ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `DnsRecord`
[INFO] [stdout]  --> src/server.rs:9:31
[INFO] [stdout]   |
[INFO] [stdout] 9 |     message::{DnsMessageType, DnsRecord},
[INFO] [stdout]   |                               ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/io/binrw_parser.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct RecordReadInternal {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 77 |     length: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `length` is never read
[INFO] [stdout]   --> src/io/binrw_parser.rs:77:5
[INFO] [stdout]    |
[INFO] [stdout] 71 | struct RecordReadInternal {
[INFO] [stdout]    |        ------------------ field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 77 |     length: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io/binrw_parser.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     #[br(count = length)]
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/io/binrw_parser.rs:78:18
[INFO] [stdout]    |
[INFO] [stdout] 78 |     #[br(count = length)]
[INFO] [stdout]    |                  ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `codecrafters-dns-server` (bin "codecrafters-dns-server") due to 1 previous error; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `codecrafters-dns-server` (bin "codecrafters-dns-server" test) due to 1 previous error; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "70cbedd355e7b12e9adfb652a1f18341f72431eb7888382750b7fb0c6b15c161", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70cbedd355e7b12e9adfb652a1f18341f72431eb7888382750b7fb0c6b15c161", kill_on_drop: false }`
[INFO] [stdout] 70cbedd355e7b12e9adfb652a1f18341f72431eb7888382750b7fb0c6b15c161
