[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 try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fikezedev%2Fcodecrafters-dns-server-rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[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-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ikezedev/codecrafters-dns-server-rust on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cf7e29e7165d79f9bd8566963ebfb394a6658c7b5715ddcaf1638a39e631c0cf
[INFO] running `Command { std: "docker" "start" "-a" "cf7e29e7165d79f9bd8566963ebfb394a6658c7b5715ddcaf1638a39e631c0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cf7e29e7165d79f9bd8566963ebfb394a6658c7b5715ddcaf1638a39e631c0cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf7e29e7165d79f9bd8566963ebfb394a6658c7b5715ddcaf1638a39e631c0cf", kill_on_drop: false }`
[INFO] [stdout] cf7e29e7165d79f9bd8566963ebfb394a6658c7b5715ddcaf1638a39e631c0cf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae67a8799ece4a94d7eed585838b97c6169c19f2df6a7899573ec4e13da19da8
[INFO] running `Command { std: "docker" "start" "-a" "ae67a8799ece4a94d7eed585838b97c6169c19f2df6a7899573ec4e13da19da8", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling libc v0.2.149
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling winnow v0.5.34
[INFO] [stderr]    Compiling radium v0.7.0
[INFO] [stderr]    Compiling anyhow v1.0.68
[INFO] [stderr]     Checking wyz v0.5.1
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]     Checking funty v2.0.0
[INFO] [stderr]     Checking diff v0.1.13
[INFO] [stderr]     Checking memchr v2.6.4
[INFO] [stderr]     Checking yansi v0.5.1
[INFO] [stderr]     Checking bytes v1.3.0
[INFO] [stderr]     Checking pretty_assertions v1.4.0
[INFO] [stderr]     Checking bitvec v1.0.1
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking nom v7.1.3
[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: 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:11:57
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<Self>
[INFO] [stdout]    |                               --                        ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<'a, Self>
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |         rest: &'a BitSlice<u8, Msb0>,
[INFO] [stdout]    |                -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 30 |     ) -> DekuRes<Self>
[INFO] [stdout]    |          ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ) -> DekuRes<'a, Self>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]  --> src/udp/answer.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite, Derivative)]
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]  --> src/udp/answer.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite, Derivative)]
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]  --> src/udp/answer.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite, Derivative)]
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]   --> src/udp/name.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/udp/name.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]   --> src/udp/name.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/udp/name.rs:72:41
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn read_until_null_or_pointer(rest: &BitSlice<u8, Msb0>) -> DekuRes<Self> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                         |
[INFO] [stdout]    |                                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn read_until_null_or_pointer(rest: &BitSlice<u8, Msb0>) -> DekuRes<'_, Self> {
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dns-starter-rust` (bin "dns-starter-rust") due to 6 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: value assigned to `header_from` is never read
[INFO] [stdout]    --> src/udp/header.rs:106:9
[INFO] [stdout]     |
[INFO] [stdout] 106 |         header_from.question_count = 1;
[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: 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)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:11:57
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<Self>
[INFO] [stdout]    |                               --                        ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                               |
[INFO] [stdout]    |                               the lifetime is named here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn read_until_null(rest: &'a BitSlice<u8, Msb0>) -> DekuRes<'a, Self>
[INFO] [stdout]    |                                                                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's named elsewhere is confusing
[INFO] [stdout]   --> src/traits.rs:30:10
[INFO] [stdout]    |
[INFO] [stdout] 27 |         rest: &'a BitSlice<u8, Msb0>,
[INFO] [stdout]    |                -- the lifetime is named here
[INFO] [stdout] ...
[INFO] [stdout] 30 |     ) -> DekuRes<Self>
[INFO] [stdout]    |          ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: consistently use `'a`
[INFO] [stdout]    |
[INFO] [stdout] 30 |     ) -> DekuRes<'a, Self>
[INFO] [stdout]    |                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]  --> src/udp/answer.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite, Derivative)]
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]  --> src/udp/answer.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite, Derivative)]
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]  --> src/udp/answer.rs:6:35
[INFO] [stdout]   |
[INFO] [stdout] 6 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite, Derivative)]
[INFO] [stdout]   |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]   --> src/udp/name.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<usize, Infallible>
[INFO] [stdout]   --> src/udp/name.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in the derive macro `DekuRead` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: ControlFlow<Result<Infallible, Infallible>, usize>
[INFO] [stdout]   --> src/udp/name.rs:33:35
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[derive(Debug, Clone, PartialEq, DekuRead, DekuWrite)]
[INFO] [stdout]    |                                   ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/udp/name.rs:72:41
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn read_until_null_or_pointer(rest: &BitSlice<u8, Msb0>) -> DekuRes<Self> {
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^     ^^^^^^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                                         |
[INFO] [stdout]    |                                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 72 |     fn read_until_null_or_pointer(rest: &BitSlice<u8, Msb0>) -> DekuRes<'_, Self> {
[INFO] [stdout]    |                                                                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `dns-starter-rust` (bin "dns-starter-rust" test) due to 6 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "ae67a8799ece4a94d7eed585838b97c6169c19f2df6a7899573ec4e13da19da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae67a8799ece4a94d7eed585838b97c6169c19f2df6a7899573ec4e13da19da8", kill_on_drop: false }`
[INFO] [stdout] ae67a8799ece4a94d7eed585838b97c6169c19f2df6a7899573ec4e13da19da8
