[INFO] cloning repository https://github.com/f-rizi/codecrafters-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/f-rizi/codecrafters-dns-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff-rizi%2Fcodecrafters-dns-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff-rizi%2Fcodecrafters-dns-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3761bb614f4cff38b862f03b9f7538eed6d823f9
[INFO] testing f-rizi/codecrafters-dns-server-rust against master#ebf0cf75d368c035f4c7e7246d203bd469ee4a51 for pr-137940-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ff-rizi%2Fcodecrafters-dns-server-rust" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/f-rizi/codecrafters-dns-server-rust on toolchain ebf0cf75d368c035f4c7e7246d203bd469ee4a51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/f-rizi/codecrafters-dns-server-rust
[INFO] finished tweaking git repo https://github.com/f-rizi/codecrafters-dns-server-rust
[INFO] tweaked toml for git repo https://github.com/f-rizi/codecrafters-dns-server-rust written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/f-rizi/codecrafters-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" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] add542b69b5abd0c5138efccd75a41f43b0e7177e41bb70b6be909d8f79d0e13
[INFO] running `Command { std: "docker" "start" "-a" "add542b69b5abd0c5138efccd75a41f43b0e7177e41bb70b6be909d8f79d0e13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "add542b69b5abd0c5138efccd75a41f43b0e7177e41bb70b6be909d8f79d0e13", kill_on_drop: false }`
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[INFO] [stdout] add542b69b5abd0c5138efccd75a41f43b0e7177e41bb70b6be909d8f79d0e13
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[INFO] [stdout] 5c4e4c1e97bb4f5d7272bd45b673c38a3e6d83c0d6cd0ba59bfe2a7e458606ab
[INFO] running `Command { std: "docker" "start" "-a" "5c4e4c1e97bb4f5d7272bd45b673c38a3e6d83c0d6cd0ba59bfe2a7e458606ab", kill_on_drop: false }`
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[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling memchr v2.7.4
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling futures-sink v0.3.31
[INFO] [stderr]    Compiling parking_lot_core v0.9.10
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling pin-project-lite v0.2.15
[INFO] [stderr]    Compiling futures-core v0.3.31
[INFO] [stderr]    Compiling regex-syntax v0.8.5
[INFO] [stderr]    Compiling scopeguard v1.2.0
[INFO] [stderr]    Compiling futures-io v0.3.31
[INFO] [stderr]    Compiling smallvec v1.13.2
[INFO] [stderr]    Compiling utf8parse v0.2.2
[INFO] [stderr]    Compiling futures-task v0.3.31
[INFO] [stderr]    Compiling pin-utils v0.1.0
[INFO] [stderr]    Compiling futures-channel v0.3.31
[INFO] [stderr]    Compiling anstyle-parse v0.2.6
[INFO] [stderr]    Compiling anstyle-query v1.1.2
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling is_terminal_polyfill v1.70.1
[INFO] [stderr]    Compiling anstyle v1.0.10
[INFO] [stderr]    Compiling thiserror v2.0.9
[INFO] [stderr]    Compiling colorchoice v1.0.3
[INFO] [stderr]    Compiling bytes v1.9.0
[INFO] [stderr]    Compiling humantime v2.1.0
[INFO] [stderr]    Compiling once_cell v1.20.2
[INFO] [stderr]    Compiling anstream v0.6.18
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[INFO] [stderr]    Compiling lock_api v0.4.12
[INFO] [stderr]    Compiling aho-corasick v1.1.3
[INFO] [stderr]    Compiling quote v1.0.36
[INFO] [stderr]    Compiling syn v2.0.91
[INFO] [stderr]    Compiling getrandom v0.2.15
[INFO] [stderr]    Compiling socket2 v0.5.8
[INFO] [stderr]    Compiling mio v1.0.3
[INFO] [stderr]    Compiling signal-hook-registry v1.4.2
[INFO] [stderr]    Compiling parking_lot v0.12.3
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling regex-automata v0.4.9
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling futures-macro v0.3.31
[INFO] [stderr]    Compiling tokio-macros v2.4.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.9
[INFO] [stderr]    Compiling regex v1.11.1
[INFO] [stderr]    Compiling zerocopy v0.7.35
[INFO] [stderr]    Compiling env_filter v0.1.3
[INFO] [stderr]    Compiling tokio v1.42.0
[INFO] [stderr]    Compiling futures-util v0.3.31
[INFO] [stderr]    Compiling env_logger v0.11.6
[INFO] [stderr]    Compiling ppv-lite86 v0.2.20
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling futures-executor v0.3.31
[INFO] [stderr]    Compiling futures v0.3.31
[INFO] [stderr]    Compiling codecrafters-dns-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/errors.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum DnsError {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsError` 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: structure field `TTL` should have a snake case name
[INFO] [stdout]  --> src/dns/answer.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub TTL: u32,
[INFO] [stdout]   |         ^^^ help: convert the identifier to snake case: `ttl`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Length` should have a snake case name
[INFO] [stdout]   --> src/dns/answer.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub Length: u16,
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Data` should have a snake case name
[INFO] [stdout]   --> src/dns/answer.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub Data: Vec<u8>,
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ID` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub ID: u16,
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case: `id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `QR` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub QR: u8,
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case: `qr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `OPCODE` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub OPCODE: u8,
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `opcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `AA` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub AA: u8,
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case: `aa`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `TC` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub TC: u8,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `tc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RD` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub RD: u8,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `rd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RA` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub RA: u8,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `ra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Z` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub Z: u8,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RCODE` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub RCODE: u8,
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `rcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `QDCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub QDCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `qdcount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ANCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub ANCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `ancount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `NSCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub NSCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `nscount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ARCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub ARCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `arcount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 21.56s
[INFO] running `Command { std: "docker" "inspect" "5c4e4c1e97bb4f5d7272bd45b673c38a3e6d83c0d6cd0ba59bfe2a7e458606ab", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5c4e4c1e97bb4f5d7272bd45b673c38a3e6d83c0d6cd0ba59bfe2a7e458606ab", kill_on_drop: false }`
[INFO] [stdout] 5c4e4c1e97bb4f5d7272bd45b673c38a3e6d83c0d6cd0ba59bfe2a7e458606ab
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e061715396f2107d10dba82eeac2ad33be6c59a9f9cec2fc3b1e893895526be
[INFO] running `Command { std: "docker" "start" "-a" "2e061715396f2107d10dba82eeac2ad33be6c59a9f9cec2fc3b1e893895526be", kill_on_drop: false }`
[INFO] [stderr]    Compiling codecrafters-dns-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `Unknown` is never constructed
[INFO] [stdout]   --> src/errors.rs:18:5
[INFO] [stdout]    |
[INFO] [stdout] 4  | pub enum DnsError {
[INFO] [stdout]    |          -------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 18 |     Unknown,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `DnsError` 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: structure field `TTL` should have a snake case name
[INFO] [stdout]  --> src/dns/answer.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub TTL: u32,
[INFO] [stdout]   |         ^^^ help: convert the identifier to snake case: `ttl`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Length` should have a snake case name
[INFO] [stdout]   --> src/dns/answer.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub Length: u16,
[INFO] [stdout]    |         ^^^^^^ help: convert the identifier to snake case: `length`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Data` should have a snake case name
[INFO] [stdout]   --> src/dns/answer.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub Data: Vec<u8>,
[INFO] [stdout]    |         ^^^^ help: convert the identifier to snake case: `data`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ID` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:6:9
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub ID: u16,
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case: `id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `QR` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub QR: u8,
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case: `qr`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `OPCODE` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub OPCODE: u8,
[INFO] [stdout]   |         ^^^^^^ help: convert the identifier to snake case: `opcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `AA` should have a snake case name
[INFO] [stdout]  --> src/dns/header.rs:9:9
[INFO] [stdout]   |
[INFO] [stdout] 9 |     pub AA: u8,
[INFO] [stdout]   |         ^^ help: convert the identifier to snake case: `aa`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `TC` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:10:9
[INFO] [stdout]    |
[INFO] [stdout] 10 |     pub TC: u8,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `tc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RD` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 |     pub RD: u8,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `rd`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RA` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:12:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     pub RA: u8,
[INFO] [stdout]    |         ^^ help: convert the identifier to snake case: `ra`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `Z` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub Z: u8,
[INFO] [stdout]    |         ^ help: convert the identifier to snake case (notice the capitalization): `z`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `RCODE` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub RCODE: u8,
[INFO] [stdout]    |         ^^^^^ help: convert the identifier to snake case: `rcode`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `QDCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 15 |     pub QDCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `qdcount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ANCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:16:9
[INFO] [stdout]    |
[INFO] [stdout] 16 |     pub ANCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `ancount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `NSCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:17:9
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub NSCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `nscount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `ARCOUNT` should have a snake case name
[INFO] [stdout]   --> src/dns/header.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 18 |     pub ARCOUNT: u16,
[INFO] [stdout]    |         ^^^^^^^ help: convert the identifier to snake case: `arcount`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "2e061715396f2107d10dba82eeac2ad33be6c59a9f9cec2fc3b1e893895526be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e061715396f2107d10dba82eeac2ad33be6c59a9f9cec2fc3b1e893895526be", kill_on_drop: false }`
[INFO] [stdout] 2e061715396f2107d10dba82eeac2ad33be6c59a9f9cec2fc3b1e893895526be
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:1680c8fbd8dfb46fcd6d22e546df16ab0e007457dc29fcd9e987cdd5077fd1af" "/opt/rustwide/cargo-home/bin/cargo" "+ebf0cf75d368c035f4c7e7246d203bd469ee4a51" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f1524a6ced4277fa25cd4b82476bd4230d55b1cc894864facbd6076e7f2f879e
[INFO] running `Command { std: "docker" "start" "-a" "f1524a6ced4277fa25cd4b82476bd4230d55b1cc894864facbd6076e7f2f879e", kill_on_drop: false }`
[INFO] [stderr] warning: variant `Unknown` is never constructed
[INFO] [stderr]   --> src/errors.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 4  | pub enum DnsError {
[INFO] [stderr]    |          -------- variant in this enum
[INFO] [stderr] ...
[INFO] [stderr] 18 |     Unknown,
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `DnsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `TTL` should have a snake case name
[INFO] [stderr]  --> src/dns/answer.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub TTL: u32,
[INFO] [stderr]   |         ^^^ help: convert the identifier to snake case: `ttl`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Length` should have a snake case name
[INFO] [stderr]   --> src/dns/answer.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub Length: u16,
[INFO] [stderr]    |         ^^^^^^ help: convert the identifier to snake case: `length`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Data` should have a snake case name
[INFO] [stderr]   --> src/dns/answer.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub Data: Vec<u8>,
[INFO] [stderr]    |         ^^^^ help: convert the identifier to snake case: `data`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `ID` should have a snake case name
[INFO] [stderr]  --> src/dns/header.rs:6:9
[INFO] [stderr]   |
[INFO] [stderr] 6 |     pub ID: u16,
[INFO] [stderr]   |         ^^ help: convert the identifier to snake case: `id`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `QR` should have a snake case name
[INFO] [stderr]  --> src/dns/header.rs:7:9
[INFO] [stderr]   |
[INFO] [stderr] 7 |     pub QR: u8,
[INFO] [stderr]   |         ^^ help: convert the identifier to snake case: `qr`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `OPCODE` should have a snake case name
[INFO] [stderr]  --> src/dns/header.rs:8:9
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub OPCODE: u8,
[INFO] [stderr]   |         ^^^^^^ help: convert the identifier to snake case: `opcode`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `AA` should have a snake case name
[INFO] [stderr]  --> src/dns/header.rs:9:9
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub AA: u8,
[INFO] [stderr]   |         ^^ help: convert the identifier to snake case: `aa`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `TC` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:10:9
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub TC: u8,
[INFO] [stderr]    |         ^^ help: convert the identifier to snake case: `tc`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `RD` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:11:9
[INFO] [stderr]    |
[INFO] [stderr] 11 |     pub RD: u8,
[INFO] [stderr]    |         ^^ help: convert the identifier to snake case: `rd`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `RA` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:12:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     pub RA: u8,
[INFO] [stderr]    |         ^^ help: convert the identifier to snake case: `ra`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `Z` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 13 |     pub Z: u8,
[INFO] [stderr]    |         ^ help: convert the identifier to snake case (notice the capitalization): `z`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `RCODE` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |     pub RCODE: u8,
[INFO] [stderr]    |         ^^^^^ help: convert the identifier to snake case: `rcode`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `QDCOUNT` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:15:9
[INFO] [stderr]    |
[INFO] [stderr] 15 |     pub QDCOUNT: u16,
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `qdcount`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `ANCOUNT` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:16:9
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub ANCOUNT: u16,
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `ancount`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `NSCOUNT` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:17:9
[INFO] [stderr]    |
[INFO] [stderr] 17 |     pub NSCOUNT: u16,
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `nscount`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `ARCOUNT` should have a snake case name
[INFO] [stderr]   --> src/dns/header.rs:18:9
[INFO] [stderr]    |
[INFO] [stderr] 18 |     pub ARCOUNT: u16,
[INFO] [stderr]    |         ^^^^^^^ help: convert the identifier to snake case: `arcount`
[INFO] [stderr] 
[INFO] [stderr] warning: `codecrafters-dns-server` (bin "codecrafters-dns-server" test) generated 17 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.10s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/codecrafters_dns_server-c153b7e0fd8910be)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f1524a6ced4277fa25cd4b82476bd4230d55b1cc894864facbd6076e7f2f879e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f1524a6ced4277fa25cd4b82476bd4230d55b1cc894864facbd6076e7f2f879e", kill_on_drop: false }`
[INFO] [stdout] f1524a6ced4277fa25cd4b82476bd4230d55b1cc894864facbd6076e7f2f879e