[INFO] cloning repository https://github.com/shricastic/dns-server-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shricastic/dns-server-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshricastic%2Fdns-server-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshricastic%2Fdns-server-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5a43f7dc5e0084637cbe5fd96035fb994be447c8
[INFO] checking shricastic/dns-server-rs against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145342-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshricastic%2Fdns-server-rs" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shricastic/dns-server-rs
[INFO] finished tweaking git repo https://github.com/shricastic/dns-server-rs
[INFO] tweaked toml for git repo https://github.com/shricastic/dns-server-rs written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shricastic/dns-server-rs on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shricastic/dns-server-rs 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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0eda4a507a33aae7af10f0a11c6faa42aad1ec645c26e85a718964645adca8df
[INFO] running `Command { std: "docker" "start" "-a" "0eda4a507a33aae7af10f0a11c6faa42aad1ec645c26e85a718964645adca8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0eda4a507a33aae7af10f0a11c6faa42aad1ec645c26e85a718964645adca8df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eda4a507a33aae7af10f0a11c6faa42aad1ec645c26e85a718964645adca8df", kill_on_drop: false }`
[INFO] [stdout] 0eda4a507a33aae7af10f0a11c6faa42aad1ec645c26e85a718964645adca8df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 20de9d74e91bd53441639f2bffe47b1e09a8dda4d23e502c28b8fc82b34ed263
[INFO] running `Command { std: "docker" "start" "-a" "20de9d74e91bd53441639f2bffe47b1e09a8dda4d23e502c28b8fc82b34ed263", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.174
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling parking_lot_core v0.9.11
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking smallvec v1.15.1
[INFO] [stderr]     Checking cfg-if v1.0.1
[INFO] [stderr]     Checking pin-project-lite v0.2.16
[INFO] [stderr]     Checking bytes v1.10.1
[INFO] [stderr]    Compiling lock_api v0.4.13
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]     Checking signal-hook-registry v1.4.5
[INFO] [stderr]     Checking socket2 v0.5.10
[INFO] [stderr]     Checking mio v1.0.4
[INFO] [stderr]     Checking parking_lot v0.12.4
[INFO] [stderr]    Compiling tokio-macros v2.5.0
[INFO] [stderr]     Checking tokio v1.46.1
[INFO] [stderr]     Checking dns-server-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `build_dns_response` and `self`
[INFO] [stdout]  --> src/main.rs:4:137
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...uestion, remote_dns::forward_to_remote_dns, response::{self, build_dns_response}};
[INFO] [stdout]   |                                                           ^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `build_dns_response` and `self`
[INFO] [stdout]  --> src/main.rs:4:137
[INFO] [stdout]   |
[INFO] [stdout] 4 | ...uestion, remote_dns::forward_to_remote_dns, response::{self, build_dns_response}};
[INFO] [stdout]   |                                                           ^^^^  ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]  --> src/dns/response.rs:3:51
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn build_dns_response(buf: &[u8], len: usize, question: &DnsQuestion) -> Vec<u8> {
[INFO] [stdout]   |                                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `flags`, `questions`, `answers`, `authority`, and `additionals` are never read
[INFO] [stdout]  --> src/dns/header.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct DnsPacketHeader {
[INFO] [stdout]   |            --------------- fields in this struct
[INFO] [stdout] 3 |     id: u16,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 4 |     flags: u16,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     questions: u16,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     answers: u16,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     authority: u16,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     additionals: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DnsPacketHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `qclass` is never read
[INFO] [stdout]  --> src/dns/question.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct DnsQuestion {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     pub qclass: u16
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DnsQuestion` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_dns_response` is never used
[INFO] [stdout]  --> src/dns/response.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn build_dns_response(buf: &[u8], len: usize, question: &DnsQuestion) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Future` that must be used
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             socket.send_to(&cached_response, client_addr);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     socket.send_to(&response, client_addr).await;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     let _ = socket.send_to(&response, client_addr).await;
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `question`
[INFO] [stdout]  --> src/dns/response.rs:3:51
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn build_dns_response(buf: &[u8], len: usize, question: &DnsQuestion) -> Vec<u8> {
[INFO] [stdout]   |                                                   ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_question`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `e`
[INFO] [stdout]   --> src/main.rs:44:21
[INFO] [stdout]    |
[INFO] [stdout] 44 |                 Err(e) => {
[INFO] [stdout]    |                     ^ help: if this is intentional, prefix it with an underscore: `_e`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `id`, `flags`, `questions`, `answers`, `authority`, and `additionals` are never read
[INFO] [stdout]  --> src/dns/header.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct DnsPacketHeader {
[INFO] [stdout]   |            --------------- fields in this struct
[INFO] [stdout] 3 |     id: u16,
[INFO] [stdout]   |     ^^
[INFO] [stdout] 4 |     flags: u16,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 5 |     questions: u16,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 6 |     answers: u16,
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 7 |     authority: u16,
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 8 |     additionals: u16,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DnsPacketHeader` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `qclass` is never read
[INFO] [stdout]  --> src/dns/question.rs:5:9
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct DnsQuestion {
[INFO] [stdout]   |            ----------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 5 |     pub qclass: u16
[INFO] [stdout]   |         ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `DnsQuestion` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `build_dns_response` is never used
[INFO] [stdout]  --> src/dns/response.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub fn build_dns_response(buf: &[u8], len: usize, question: &DnsQuestion) -> Vec<u8> {
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused implementer of `Future` that must be used
[INFO] [stdout]   --> src/main.rs:35:13
[INFO] [stdout]    |
[INFO] [stdout] 35 |             socket.send_to(&cached_response, client_addr);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: futures do nothing unless you `.await` or poll them
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/main.rs:42:21
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     socket.send_to(&response, client_addr).await;
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 42 |                     let _ = socket.send_to(&response, client_addr).await;
[INFO] [stdout]    |                     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.45s
[INFO] running `Command { std: "docker" "inspect" "20de9d74e91bd53441639f2bffe47b1e09a8dda4d23e502c28b8fc82b34ed263", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "20de9d74e91bd53441639f2bffe47b1e09a8dda4d23e502c28b8fc82b34ed263", kill_on_drop: false }`
[INFO] [stdout] 20de9d74e91bd53441639f2bffe47b1e09a8dda4d23e502c28b8fc82b34ed263