[INFO] cloning repository https://github.com/skbhati199/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/skbhati199/codecrafters-dns-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskbhati199%2Fcodecrafters-dns-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskbhati199%2Fcodecrafters-dns-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34ef869bb2da021cb4a5c061e89654375bcb9218
[INFO] building skbhati199/codecrafters-dns-server-rust against master#44f415c1d617ebc7b931a243b7b321ef8a6ca47c for pr-142134-abi-ast-error
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fskbhati199%2Fcodecrafters-dns-server-rust" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/skbhati199/codecrafters-dns-server-rust on toolchain 44f415c1d617ebc7b931a243b7b321ef8a6ca47c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/skbhati199/codecrafters-dns-server-rust
[INFO] finished tweaking git repo https://github.com/skbhati199/codecrafters-dns-server-rust
[INFO] tweaked toml for git repo https://github.com/skbhati199/codecrafters-dns-server-rust written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/skbhati199/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" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fc0ecdfb94c11a25957c5dc9cc4252532628935851d0647decdb435ac007912
[INFO] running `Command { std: "docker" "start" "-a" "8fc0ecdfb94c11a25957c5dc9cc4252532628935851d0647decdb435ac007912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fc0ecdfb94c11a25957c5dc9cc4252532628935851d0647decdb435ac007912", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fc0ecdfb94c11a25957c5dc9cc4252532628935851d0647decdb435ac007912", kill_on_drop: false }`
[INFO] [stdout] 8fc0ecdfb94c11a25957c5dc9cc4252532628935851d0647decdb435ac007912
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f9364f4a85db14e7ffee10e5ed0f0bf52b67b4fca8ec5da97fec21d400ec8f58
[INFO] running `Command { std: "docker" "start" "-a" "f9364f4a85db14e7ffee10e5ed0f0bf52b67b4fca8ec5da97fec21d400ec8f58", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling memchr v2.6.4
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling bytes v1.3.0
[INFO] [stderr]    Compiling nom v7.1.3
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling getrandom v0.2.10
[INFO] [stderr]    Compiling rand_core v0.6.4
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling dns-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rdata`
[INFO] [stdout]    --> src/main.rs:333:13
[INFO] [stdout]     |
[INFO] [stdout] 333 |         let rdata = buf.take(rdlength as usize);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_rdata`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RData` is never used
[INFO] [stdout]   --> src/main.rs:77:6
[INFO] [stdout]    |
[INFO] [stdout] 77 | enum RData {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RData` 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: associated function `deserialize` is never used
[INFO] [stdout]    --> src/main.rs:327:8
[INFO] [stdout]     |
[INFO] [stdout] 326 | impl DNSResource {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 327 |     fn deserialize(buf: &mut DataWrapper) -> Option<(DNSResource, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.79s
[INFO] running `Command { std: "docker" "inspect" "f9364f4a85db14e7ffee10e5ed0f0bf52b67b4fca8ec5da97fec21d400ec8f58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f9364f4a85db14e7ffee10e5ed0f0bf52b67b4fca8ec5da97fec21d400ec8f58", kill_on_drop: false }`
[INFO] [stdout] f9364f4a85db14e7ffee10e5ed0f0bf52b67b4fca8ec5da97fec21d400ec8f58
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:eea15d5475069c3ef791f10c2c6b5af2ee421ef2da1e680ecce1cba46243983b" "/opt/rustwide/cargo-home/bin/cargo" "+44f415c1d617ebc7b931a243b7b321ef8a6ca47c" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e7bd1e2c7531957be24443e1a11b4bff6d2c41071170f75ca4e6dd3f8b91725
[INFO] running `Command { std: "docker" "start" "-a" "8e7bd1e2c7531957be24443e1a11b4bff6d2c41071170f75ca4e6dd3f8b91725", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rdata`
[INFO] [stdout]    --> src/main.rs:333:13
[INFO] [stdout]     |
[INFO] [stdout] 333 |         let rdata = buf.take(rdlength as usize);
[INFO] [stdout]     |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_rdata`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `RData` is never used
[INFO] [stdout]   --> src/main.rs:77:6
[INFO] [stdout]    |
[INFO] [stdout] 77 | enum RData {
[INFO] [stdout]    |      ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RData` 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: associated function `deserialize` is never used
[INFO] [stdout]    --> src/main.rs:327:8
[INFO] [stdout]     |
[INFO] [stdout] 326 | impl DNSResource {
[INFO] [stdout]     | ---------------- associated function in this implementation
[INFO] [stdout] 327 |     fn deserialize(buf: &mut DataWrapper) -> Option<(DNSResource, usize)> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "8e7bd1e2c7531957be24443e1a11b4bff6d2c41071170f75ca4e6dd3f8b91725", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e7bd1e2c7531957be24443e1a11b4bff6d2c41071170f75ca4e6dd3f8b91725", kill_on_drop: false }`
[INFO] [stdout] 8e7bd1e2c7531957be24443e1a11b4bff6d2c41071170f75ca4e6dd3f8b91725