[INFO] cloning repository https://github.com/carlosmn/dns-server
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carlosmn/dns-server" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosmn%2Fdns-server", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosmn%2Fdns-server'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] de8e9ec81de02258e0c881233e576a3b55643d9e
[INFO] checking carlosmn/dns-server against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosmn%2Fdns-server" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/carlosmn/dns-server
[INFO] finished tweaking git repo https://github.com/carlosmn/dns-server
[INFO] tweaked toml for git repo https://github.com/carlosmn/dns-server written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/carlosmn/dns-server on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/carlosmn/dns-server 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" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19533ddc3d89078b7b2781e4162cb1219cfa5029ea0cd4e9f7230b4e7adaf19c
[INFO] running `Command { std: "docker" "start" "-a" "19533ddc3d89078b7b2781e4162cb1219cfa5029ea0cd4e9f7230b4e7adaf19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19533ddc3d89078b7b2781e4162cb1219cfa5029ea0cd4e9f7230b4e7adaf19c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19533ddc3d89078b7b2781e4162cb1219cfa5029ea0cd4e9f7230b4e7adaf19c", kill_on_drop: false }`
[INFO] [stdout] 19533ddc3d89078b7b2781e4162cb1219cfa5029ea0cd4e9f7230b4e7adaf19c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c1afc7ebecc94571fd67822890d1ded773673396dd67947cd392c9ece01c654a
[INFO] running `Command { std: "docker" "start" "-a" "c1afc7ebecc94571fd67822890d1ded773673396dd67947cd392c9ece01c654a", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2024
[INFO] [stderr]     Checking dns-server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ((higher << 8) | lower)
[INFO] [stdout]     |     ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -     ((higher << 8) | lower)
[INFO] [stdout] 107 +     (higher << 8) | lower
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 24 |     id: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 25 |     qr: QR,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     opcode: Opcode,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 27 |     aa: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 28 |     tc: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 29 |     rd: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 30 |     // a few missing
[INFO] [stdout] 31 |     qdcount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 32 |     ancount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     nscount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 34 |     arcount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` 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: fields `qname`, `qtype`, `qclass`, and `len` are never read
[INFO] [stdout]    --> src/main.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct Question<'a> {
[INFO] [stdout]     |        -------- fields in this struct
[INFO] [stdout] 140 |     qname: Vec<Cow<'a, str>>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 141 |     qtype: QType,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 142 |     qclass: QClass,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 143 |     // Length of the record in the buffer
[INFO] [stdout] 144 |     len: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Question` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:147:29
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn parse_question_part(buf: &[u8]) -> (usize, Option<Cow<str>>) {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn parse_question_part(buf: &[u8]) -> (usize, Option<Cow<'_, str>>) {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:157:24
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn parse_question(buf: &[u8]) -> Option<Question> {
[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] 157 | fn parse_question(buf: &[u8]) -> Option<Question<'_>> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]    --> src/main.rs:107:5
[INFO] [stdout]     |
[INFO] [stdout] 107 |     ((higher << 8) | lower)
[INFO] [stdout]     |     ^                     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 107 -     ((higher << 8) | lower)
[INFO] [stdout] 107 +     (higher << 8) | lower
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 23 | struct Header {
[INFO] [stdout]    |        ------ fields in this struct
[INFO] [stdout] 24 |     id: u16,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 25 |     qr: QR,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 26 |     opcode: Opcode,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 27 |     aa: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 28 |     tc: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 29 |     rd: bool,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 30 |     // a few missing
[INFO] [stdout] 31 |     qdcount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 32 |     ancount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 33 |     nscount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 34 |     arcount: u16,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Header` 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: fields `qname`, `qtype`, `qclass`, and `len` are never read
[INFO] [stdout]    --> src/main.rs:140:5
[INFO] [stdout]     |
[INFO] [stdout] 139 | struct Question<'a> {
[INFO] [stdout]     |        -------- fields in this struct
[INFO] [stdout] 140 |     qname: Vec<Cow<'a, str>>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 141 |     qtype: QType,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] 142 |     qclass: QClass,
[INFO] [stdout]     |     ^^^^^^
[INFO] [stdout] 143 |     // Length of the record in the buffer
[INFO] [stdout] 144 |     len: usize,
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Question` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:147:29
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn parse_question_part(buf: &[u8]) -> (usize, Option<Cow<str>>) {
[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]     = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 147 | fn parse_question_part(buf: &[u8]) -> (usize, Option<Cow<'_, str>>) {
[INFO] [stdout]     |                                                          +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/main.rs:157:24
[INFO] [stdout]     |
[INFO] [stdout] 157 | fn parse_question(buf: &[u8]) -> Option<Question> {
[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] 157 | fn parse_question(buf: &[u8]) -> Option<Question<'_>> {
[INFO] [stdout]     |                                                 ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "c1afc7ebecc94571fd67822890d1ded773673396dd67947cd392c9ece01c654a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c1afc7ebecc94571fd67822890d1ded773673396dd67947cd392c9ece01c654a", kill_on_drop: false }`
[INFO] [stdout] c1afc7ebecc94571fd67822890d1ded773673396dd67947cd392c9ece01c654a
