[INFO] cloning repository https://github.com/staceytay/dns-resolver [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/staceytay/dns-resolver" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaceytay%2Fdns-resolver", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaceytay%2Fdns-resolver'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] b17deec6da53fec76027ae82e755374c025d28bb [INFO] checking staceytay/dns-resolver against master#46424fb5054f211ec836c5c03159f92e46bb35ac for pr-139042 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstaceytay%2Fdns-resolver" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/staceytay/dns-resolver on toolchain 46424fb5054f211ec836c5c03159f92e46bb35ac [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/staceytay/dns-resolver [INFO] finished tweaking git repo https://github.com/staceytay/dns-resolver [INFO] tweaked toml for git repo https://github.com/staceytay/dns-resolver written to /workspace/builds/worker-1-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/staceytay/dns-resolver 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" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] be7d6c7ed082a35d09bd88b13001258febb3826531d57cb5043d8d995d7d3287 [INFO] running `Command { std: "docker" "start" "-a" "be7d6c7ed082a35d09bd88b13001258febb3826531d57cb5043d8d995d7d3287", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "be7d6c7ed082a35d09bd88b13001258febb3826531d57cb5043d8d995d7d3287", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "be7d6c7ed082a35d09bd88b13001258febb3826531d57cb5043d8d995d7d3287", kill_on_drop: false }` [INFO] [stdout] be7d6c7ed082a35d09bd88b13001258febb3826531d57cb5043d8d995d7d3287 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4b26683ee3c49f365255c425c23003cbf4366de097804722c29c5bbbee3624d2" "/opt/rustwide/cargo-home/bin/cargo" "+46424fb5054f211ec836c5c03159f92e46bb35ac" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b4e49e0c81f5480f67efe4504cfc64f014b9dab3b04e991d64707e92c2f555ab [INFO] running `Command { std: "docker" "start" "-a" "b4e49e0c81f5480f67efe4504cfc64f014b9dab3b04e991d64707e92c2f555ab", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.146 [INFO] [stderr] Checking cfg-if v1.0.0 [INFO] [stderr] Checking ppv-lite86 v0.2.17 [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] Checking dns v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:102:10 [INFO] [stdout] | [INFO] [stdout] 102 | Data(Vec), [INFO] [stdout] | ---- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `DnsRecordData` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 102 - Data(Vec), [INFO] [stdout] 102 + Data(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field `0` is never read [INFO] [stdout] --> src/lib.rs:102:10 [INFO] [stdout] | [INFO] [stdout] 102 | Data(Vec), [INFO] [stdout] | ---- ^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | field in this variant [INFO] [stdout] | [INFO] [stdout] = note: `DnsRecordData` 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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field [INFO] [stdout] | [INFO] [stdout] 102 - Data(Vec), [INFO] [stdout] 102 + Data(()), [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `class` and `ttl` are never read [INFO] [stdout] --> src/lib.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 108 | struct DnsRecord { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 111 | class: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 112 | ttl: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DnsRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `class` and `ttl` are never read [INFO] [stdout] --> src/lib.rs:111:5 [INFO] [stdout] | [INFO] [stdout] 108 | struct DnsRecord { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] ... [INFO] [stdout] 111 | class: u16, [INFO] [stdout] | ^^^^^ [INFO] [stdout] 112 | ttl: u32, [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DnsRecord` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `header` and `questions` are never read [INFO] [stdout] --> src/lib.rs:169:5 [INFO] [stdout] | [INFO] [stdout] 168 | struct DnsPacket { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 169 | header: DnsHeader, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 170 | questions: Vec, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DnsPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: fields `header` and `questions` are never read [INFO] [stdout] --> src/lib.rs:169:5 [INFO] [stdout] | [INFO] [stdout] 168 | struct DnsPacket { [INFO] [stdout] | --------- fields in this struct [INFO] [stdout] 169 | header: DnsHeader, [INFO] [stdout] | ^^^^^^ [INFO] [stdout] 170 | questions: Vec, [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `DnsPacket` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.93s [INFO] running `Command { std: "docker" "inspect" "b4e49e0c81f5480f67efe4504cfc64f014b9dab3b04e991d64707e92c2f555ab", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b4e49e0c81f5480f67efe4504cfc64f014b9dab3b04e991d64707e92c2f555ab", kill_on_drop: false }` [INFO] [stdout] b4e49e0c81f5480f67efe4504cfc64f014b9dab3b04e991d64707e92c2f555ab