[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] building staceytay/dns-resolver against master#11663cd3bfefef7d34e8f0892c250bf698049392+rustflags=-Dtail-expr-drop-order for pr-134523 [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 11663cd3bfefef7d34e8f0892c250bf698049392 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "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" "+11663cd3bfefef7d34e8f0892c250bf698049392" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8c30b9f385cb3f310dbf95b1fa7bb848358ab62680c957bfbb1c4704f6fc2728 [INFO] running `Command { std: "docker" "start" "-a" "8c30b9f385cb3f310dbf95b1fa7bb848358ab62680c957bfbb1c4704f6fc2728", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8c30b9f385cb3f310dbf95b1fa7bb848358ab62680c957bfbb1c4704f6fc2728", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8c30b9f385cb3f310dbf95b1fa7bb848358ab62680c957bfbb1c4704f6fc2728", kill_on_drop: false }` [INFO] [stdout] 8c30b9f385cb3f310dbf95b1fa7bb848358ab62680c957bfbb1c4704f6fc2728 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 0c45004e48830d205ce3aa7b645de1f91b8ba45d94122839fb567027411efc32 [INFO] running `Command { std: "docker" "start" "-a" "0c45004e48830d205ce3aa7b645de1f91b8ba45d94122839fb567027411efc32", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.146 [INFO] [stderr] Compiling ppv-lite86 v0.2.17 [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 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(()), [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 `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 2.54s [INFO] running `Command { std: "docker" "inspect" "0c45004e48830d205ce3aa7b645de1f91b8ba45d94122839fb567027411efc32", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "0c45004e48830d205ce3aa7b645de1f91b8ba45d94122839fb567027411efc32", kill_on_drop: false }` [INFO] [stdout] 0c45004e48830d205ce3aa7b645de1f91b8ba45d94122839fb567027411efc32 [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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+11663cd3bfefef7d34e8f0892c250bf698049392" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e4f00441bd30d1e64506c51b799cd23dfeefd4691a3aa078bebb7f4f2dae2c8f [INFO] running `Command { std: "docker" "start" "-a" "e4f00441bd30d1e64506c51b799cd23dfeefd4691a3aa078bebb7f4f2dae2c8f", kill_on_drop: false }` [INFO] [stderr] Compiling 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(()), [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 `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: 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(()), [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 `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 `test` profile [unoptimized + debuginfo] target(s) in 0.29s [INFO] running `Command { std: "docker" "inspect" "e4f00441bd30d1e64506c51b799cd23dfeefd4691a3aa078bebb7f4f2dae2c8f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4f00441bd30d1e64506c51b799cd23dfeefd4691a3aa078bebb7f4f2dae2c8f", kill_on_drop: false }` [INFO] [stdout] e4f00441bd30d1e64506c51b799cd23dfeefd4691a3aa078bebb7f4f2dae2c8f