[INFO] cloning repository https://github.com/ikezedev/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/ikezedev/codecrafters-dns-server-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikezedev%2Fcodecrafters-dns-server-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikezedev%2Fcodecrafters-dns-server-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b9f91098b3d59afd1405e31a47eb8373593eee90
[INFO] checking ikezedev/codecrafters-dns-server-rust against master#385fa9d845dd326c6bbfd58c22244215e431948a for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikezedev%2Fcodecrafters-dns-server-rust" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikezedev/codecrafters-dns-server-rust on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ikezedev/codecrafters-dns-server-rust
[INFO] finished tweaking git repo https://github.com/ikezedev/codecrafters-dns-server-rust
[INFO] tweaked toml for git repo https://github.com/ikezedev/codecrafters-dns-server-rust written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ikezedev/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" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded deku_derive v0.16.0
[INFO] [stderr]   Downloaded deku v0.16.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8488073f2d2056c3f2e81c73ba332d8eb71f9a115d98dd1febf9ffe1ccba1d5d
[INFO] running `Command { std: "docker" "start" "-a" "8488073f2d2056c3f2e81c73ba332d8eb71f9a115d98dd1febf9ffe1ccba1d5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8488073f2d2056c3f2e81c73ba332d8eb71f9a115d98dd1febf9ffe1ccba1d5d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8488073f2d2056c3f2e81c73ba332d8eb71f9a115d98dd1febf9ffe1ccba1d5d", kill_on_drop: false }`
[INFO] [stdout] 8488073f2d2056c3f2e81c73ba332d8eb71f9a115d98dd1febf9ffe1ccba1d5d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0c060dd74fd26683a5e3ddab7e795d29cb67df3483678f5d536cf8a3271854e3
[INFO] running `Command { std: "docker" "start" "-a" "0c060dd74fd26683a5e3ddab7e795d29cb67df3483678f5d536cf8a3271854e3", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling winnow v0.5.34
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling deku_derive v0.16.0
[INFO] [stderr]     Checking deku v0.16.0
[INFO] [stderr]     Checking dns-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DekuContainerWrite` is imported redundantly
[INFO] [stdout]   --> src/udp/question.rs:43:35
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::*;
[INFO] [stdout]    |         -------- the item `DekuContainerWrite` is already imported here
[INFO] [stdout] 43 |     use deku::{DekuContainerRead, DekuContainerWrite};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DekuContainerWrite` is imported redundantly
[INFO] [stdout]   --> src/udp.rs:67:35
[INFO] [stdout]    |
[INFO] [stdout] 66 |     use super::*;
[INFO] [stdout]    |         -------- the item `DekuContainerWrite` is already imported here
[INFO] [stdout] 67 |     use deku::{DekuContainerRead, DekuContainerWrite};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_until_null` is never used
[INFO] [stdout]   --> src/traits.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait ReadUntill<'a>: DekuRead<'a> + DekuContainerRead<'a> {
[INFO] [stdout]    |           ---------- associated function in this trait
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<Self>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_until_null` is never used
[INFO] [stdout]   --> src/traits.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait ReadUntill<'a>: DekuRead<'a> + DekuContainerRead<'a> {
[INFO] [stdout]    |           ---------- associated function in this trait
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<Self>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 14.55s
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "0c060dd74fd26683a5e3ddab7e795d29cb67df3483678f5d536cf8a3271854e3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0c060dd74fd26683a5e3ddab7e795d29cb67df3483678f5d536cf8a3271854e3", kill_on_drop: false }`
[INFO] [stdout] 0c060dd74fd26683a5e3ddab7e795d29cb67df3483678f5d536cf8a3271854e3
[INFO] checking ikezedev/codecrafters-dns-server-rust against try#645bb72776a6a56a1a8f52631a44bd082b2ba509 for absurd-question-mark-desugar
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikezedev%2Fcodecrafters-dns-server-rust" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ikezedev/codecrafters-dns-server-rust on toolchain 645bb72776a6a56a1a8f52631a44bd082b2ba509
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ikezedev/codecrafters-dns-server-rust
[INFO] finished tweaking git repo https://github.com/ikezedev/codecrafters-dns-server-rust
[INFO] tweaked toml for git repo https://github.com/ikezedev/codecrafters-dns-server-rust written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ikezedev/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" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] af322f8868923e59ea4130e147695b33cbd238e0bf1c7f668482d9a62b1ed6c7
[INFO] running `Command { std: "docker" "start" "-a" "af322f8868923e59ea4130e147695b33cbd238e0bf1c7f668482d9a62b1ed6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "af322f8868923e59ea4130e147695b33cbd238e0bf1c7f668482d9a62b1ed6c7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "af322f8868923e59ea4130e147695b33cbd238e0bf1c7f668482d9a62b1ed6c7", kill_on_drop: false }`
[INFO] [stdout] af322f8868923e59ea4130e147695b33cbd238e0bf1c7f668482d9a62b1ed6c7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+645bb72776a6a56a1a8f52631a44bd082b2ba509" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b0eb5e4eaecae46ccf0485658ba2193820a13be4de7a2223e027e61851cb22e8
[INFO] running `Command { std: "docker" "start" "-a" "b0eb5e4eaecae46ccf0485658ba2193820a13be4de7a2223e027e61851cb22e8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling winnow v0.5.34
[INFO] [stderr]     Checking tap v1.0.1
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling indexmap v2.1.0
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking getrandom v0.2.10
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling toml_edit v0.19.15
[INFO] [stderr]    Compiling proc-macro-crate v1.3.1
[INFO] [stderr]    Compiling darling_core v0.14.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.38
[INFO] [stderr]    Compiling derivative v2.2.0
[INFO] [stderr]    Compiling darling_macro v0.14.4
[INFO] [stderr]    Compiling darling v0.14.4
[INFO] [stderr]    Compiling deku_derive v0.16.0
[INFO] [stderr]     Checking deku v0.16.0
[INFO] [stderr]     Checking dns-starter-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `DekuContainerWrite` is imported redundantly
[INFO] [stdout]   --> src/udp/question.rs:43:35
[INFO] [stdout]    |
[INFO] [stdout] 42 |     use super::*;
[INFO] [stdout]    |         -------- the item `DekuContainerWrite` is already imported here
[INFO] [stdout] 43 |     use deku::{DekuContainerRead, DekuContainerWrite};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `DekuContainerWrite` is imported redundantly
[INFO] [stdout]   --> src/udp.rs:67:35
[INFO] [stdout]    |
[INFO] [stdout] 66 |     use super::*;
[INFO] [stdout]    |         -------- the item `DekuContainerWrite` is already imported here
[INFO] [stdout] 67 |     use deku::{DekuContainerRead, DekuContainerWrite};
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_until_null` is never used
[INFO] [stdout]   --> src/traits.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait ReadUntill<'a>: DekuRead<'a> + DekuContainerRead<'a> {
[INFO] [stdout]    |           ---------- associated function in this trait
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<Self>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `read_until_null` is never used
[INFO] [stdout]   --> src/traits.rs:11:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait ReadUntill<'a>: DekuRead<'a> + DekuContainerRead<'a> {
[INFO] [stdout]    |           ---------- associated function in this trait
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<Self>
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.71s
[INFO] running `Command { std: "docker" "inspect" "b0eb5e4eaecae46ccf0485658ba2193820a13be4de7a2223e027e61851cb22e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b0eb5e4eaecae46ccf0485658ba2193820a13be4de7a2223e027e61851cb22e8", kill_on_drop: false }`
[INFO] [stdout] b0eb5e4eaecae46ccf0485658ba2193820a13be4de7a2223e027e61851cb22e8