[INFO] cloning repository https://github.com/seliayeu/rust_dns
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/seliayeu/rust_dns" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseliayeu%2Frust_dns", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseliayeu%2Frust_dns'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 52994d1e746d17f0b019a334be5d7fb340fb031d
[INFO] checking seliayeu/rust_dns against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fseliayeu%2Frust_dns" "/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/seliayeu/rust_dns
[INFO] finished tweaking git repo https://github.com/seliayeu/rust_dns
[INFO] tweaked toml for git repo https://github.com/seliayeu/rust_dns written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/seliayeu/rust_dns on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/seliayeu/rust_dns 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio v1.28.1
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b3c83540b01a684320bd02a90cd5d3f449b751f7d7dee9858ad35af0bf9ca3c
[INFO] running `Command { std: "docker" "start" "-a" "0b3c83540b01a684320bd02a90cd5d3f449b751f7d7dee9858ad35af0bf9ca3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b3c83540b01a684320bd02a90cd5d3f449b751f7d7dee9858ad35af0bf9ca3c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b3c83540b01a684320bd02a90cd5d3f449b751f7d7dee9858ad35af0bf9ca3c", kill_on_drop: false }`
[INFO] [stdout] 0b3c83540b01a684320bd02a90cd5d3f449b751f7d7dee9858ad35af0bf9ca3c
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4af0c0995be2af00eff64e548b99c58a6caef5b445a194d69b22b9fcab11b6f
[INFO] running `Command { std: "docker" "start" "-a" "f4af0c0995be2af00eff64e548b99c58a6caef5b445a194d69b22b9fcab11b6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling tokio v1.28.1
[INFO] [stderr]    Compiling syn v2.0.16
[INFO] [stderr]     Checking socket2 v0.4.9
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[INFO] [stderr]     Checking num_cpus v1.15.0
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]    Compiling serde_derive v1.0.163
[INFO] [stderr]    Compiling tokio-macros v2.1.0
[INFO] [stderr]     Checking rust_dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 163 | /     loop {
[INFO] [stdout] 164 | |         let (len, addr) = socket.recv_from(&mut buf).await?;
[INFO] [stdout] 165 | |         println!("{:?} bytes received from {:?}", len, addr);
[INFO] [stdout] ...   |
[INFO] [stdout] 179 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 180 |
[INFO] [stdout] 181 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `section_size` is never read
[INFO] [stdout]    --> src/main.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut section_size = 0;
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct DNSHeader {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout]  8 |     id: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout]  9 |     qr: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 10 |     opcode: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     aa: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 12 |     tc: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 13 |     rd: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 14 |     ra: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 15 |     z: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 16 |     r_code: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     qd_count: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     an_count: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 19 |     ns_count: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     ar_count: 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: fields `q_type` and `q_class` are never read
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct DNSQuestion {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 24 |     q_name: String,
[INFO] [stdout] 25 |     q_type: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     q_class: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `r_data` are never read
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct DNSResponse {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 30 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     r_data: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `header` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct DNSPacket {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 39 |     header: DNSHeader,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/main.rs:181:5
[INFO] [stdout]     |
[INFO] [stdout] 163 | /     loop {
[INFO] [stdout] 164 | |         let (len, addr) = socket.recv_from(&mut buf).await?;
[INFO] [stdout] 165 | |         println!("{:?} bytes received from {:?}", len, addr);
[INFO] [stdout] ...   |
[INFO] [stdout] 179 | |     }
[INFO] [stdout]     | |_____- any code following this expression is unreachable
[INFO] [stdout] 180 |
[INFO] [stdout] 181 |       Ok(())
[INFO] [stdout]     |       ^^^^^^ unreachable expression
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `section_size` is never read
[INFO] [stdout]    --> src/main.rs:104:28
[INFO] [stdout]     |
[INFO] [stdout] 104 |     let mut section_size = 0;
[INFO] [stdout]     |                            ^
[INFO] [stdout]     |
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:8:5
[INFO] [stdout]    |
[INFO] [stdout]  7 | pub struct DNSHeader {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout]  8 |     id: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout]  9 |     qr: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 10 |     opcode: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 11 |     aa: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 12 |     tc: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 13 |     rd: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 14 |     ra: u8,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 15 |     z: u8,
[INFO] [stdout]    |     ^
[INFO] [stdout] 16 |     r_code: u8,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 17 |     qd_count: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 18 |     an_count: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 19 |     ns_count: u16,
[INFO] [stdout]    |     ^^^^^^^^
[INFO] [stdout] 20 |     ar_count: 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: fields `q_type` and `q_class` are never read
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub struct DNSQuestion {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 24 |     q_name: String,
[INFO] [stdout] 25 |     q_type: u16,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 26 |     q_class: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `r_data` are never read
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub struct DNSResponse {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 30 |     name: String,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 35 |     r_data: String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `header` is never read
[INFO] [stdout]   --> src/main.rs:39:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | pub struct DNSPacket {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 39 |     header: DNSHeader,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 15.46s
[INFO] running `Command { std: "docker" "inspect" "f4af0c0995be2af00eff64e548b99c58a6caef5b445a194d69b22b9fcab11b6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4af0c0995be2af00eff64e548b99c58a6caef5b445a194d69b22b9fcab11b6f", kill_on_drop: false }`
[INFO] [stdout] f4af0c0995be2af00eff64e548b99c58a6caef5b445a194d69b22b9fcab11b6f
