[INFO] cloning repository https://github.com/jawline/rust_dns_client
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jawline/rust_dns_client" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Frust_dns_client", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Frust_dns_client'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d86f63660711439907dc9c38516c33da0cb2d283
[INFO] testing jawline/rust_dns_client against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Frust_dns_client" "/workspace/builds/worker-113/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-113/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jawline/rust_dns_client on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jawline/rust_dns_client
[INFO] finished tweaking git repo https://github.com/jawline/rust_dns_client
[INFO] tweaked toml for git repo https://github.com/jawline/rust_dns_client written to /workspace/builds/worker-113/source/Cargo.toml
[INFO] crate git repo https://github.com/jawline/rust_dns_client already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4fe87c2b782753b6331d4e7f539cbc9f676e1c8e981b6991969436f08c732d9f
[INFO] running `Command { std: "docker" "start" "-a" "4fe87c2b782753b6331d4e7f539cbc9f676e1c8e981b6991969436f08c732d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4fe87c2b782753b6331d4e7f539cbc9f676e1c8e981b6991969436f08c732d9f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4fe87c2b782753b6331d4e7f539cbc9f676e1c8e981b6991969436f08c732d9f", kill_on_drop: false }`
[INFO] [stdout] 4fe87c2b782753b6331d4e7f539cbc9f676e1c8e981b6991969436f08c732d9f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5724d0564ac645b25cf3141c74f840d7131857b228f175f592c5b63f01b29da8
[INFO] running `Command { std: "docker" "start" "-a" "5724d0564ac645b25cf3141c74f840d7131857b228f175f592c5b63f01b29da8", kill_on_drop: false }`
[INFO] [stderr]    Compiling cfg-if v0.1.5
[INFO] [stderr]    Compiling byteorder v1.2.6
[INFO] [stderr]    Compiling log v0.4.5
[INFO] [stderr]    Compiling dns_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/record.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         "NS" => Some(NS_CODE),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/record.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         "NS" => Some(NS_CODE),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SOA_CODE`
[INFO] [stdout]  --> src/record.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const SOA_CODE: u16 = 0x6;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WKS_CODE`
[INFO] [stdout]  --> src/record.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const WKS_CODE: u16 = 0xB;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PTR_CODE`
[INFO] [stdout]  --> src/record.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PTR_CODE: u16 = 0xC;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SRV_CODE`
[INFO] [stdout]   --> src/record.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const SRV_CODE: u16 = 0x21;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `AAAA_CODE`
[INFO] [stdout]   --> src/record.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const AAAA_CODE: u16 = 0x1C;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.56s
[INFO] running `Command { std: "docker" "inspect" "5724d0564ac645b25cf3141c74f840d7131857b228f175f592c5b63f01b29da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5724d0564ac645b25cf3141c74f840d7131857b228f175f592c5b63f01b29da8", kill_on_drop: false }`
[INFO] [stdout] 5724d0564ac645b25cf3141c74f840d7131857b228f175f592c5b63f01b29da8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b813b84ae2af886bc00c16f42edd5c0c9dbf2538e83495972f2f64e7abd710f0
[INFO] running `Command { std: "docker" "start" "-a" "b813b84ae2af886bc00c16f42edd5c0c9dbf2538e83495972f2f64e7abd710f0", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns_client v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/record.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         "NS" => Some(NS_CODE),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `#[macro_use]` import
[INFO] [stdout]  --> src/main.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[macro_use]
[INFO] [stdout]   | ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/record.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         "NS" => Some(NS_CODE),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/record.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |         "NS" => Some(NS_CODE),
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SOA_CODE`
[INFO] [stdout]  --> src/record.rs:7:1
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub const SOA_CODE: u16 = 0x6;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `WKS_CODE`
[INFO] [stdout]  --> src/record.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const WKS_CODE: u16 = 0xB;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `PTR_CODE`
[INFO] [stdout]  --> src/record.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PTR_CODE: u16 = 0xC;
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `SRV_CODE`
[INFO] [stdout]   --> src/record.rs:12:1
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const SRV_CODE: u16 = 0x21;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `AAAA_CODE`
[INFO] [stdout]   --> src/record.rs:13:1
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub const AAAA_CODE: u16 = 0x1C;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "b813b84ae2af886bc00c16f42edd5c0c9dbf2538e83495972f2f64e7abd710f0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b813b84ae2af886bc00c16f42edd5c0c9dbf2538e83495972f2f64e7abd710f0", kill_on_drop: false }`
[INFO] [stdout] b813b84ae2af886bc00c16f42edd5c0c9dbf2538e83495972f2f64e7abd710f0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-113/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" "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:e8397a04204aaf8b9f284182a6f9e27a3c2e67044d0943b4415b160bfc957681" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f42469d5ceb50ddc2d9411275e4b10e253d04c7871261909c62acc56af5d10c9
[INFO] running `Command { std: "docker" "start" "-a" "f42469d5ceb50ddc2d9411275e4b10e253d04c7871261909c62acc56af5d10c9", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]   --> src/record.rs:21:9
[INFO] [stderr]    |
[INFO] [stderr] 21 |         "NS" => Some(NS_CODE),
[INFO] [stderr]    |         ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `dns_client` (lib) generated 1 warning
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/main.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `SOA_CODE`
[INFO] [stderr]  --> src/record.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | pub const SOA_CODE: u16 = 0x6;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `WKS_CODE`
[INFO] [stderr]  --> src/record.rs:8:1
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const WKS_CODE: u16 = 0xB;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `PTR_CODE`
[INFO] [stderr]  --> src/record.rs:9:1
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub const PTR_CODE: u16 = 0xC;
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `SRV_CODE`
[INFO] [stderr]   --> src/record.rs:12:1
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub const SRV_CODE: u16 = 0x21;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant is never used: `AAAA_CODE`
[INFO] [stderr]   --> src/record.rs:13:1
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const AAAA_CODE: u16 = 0x1C;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dns_client` (lib test) generated 1 warning (1 duplicate)
[INFO] [stderr] warning: `dns_client` (bin "dns_client" test) generated 7 warnings (1 duplicate)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dns_client-cd334ce3373e89f4)
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dns_client-0a44b57779bcb2b9)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests dns_client
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "f42469d5ceb50ddc2d9411275e4b10e253d04c7871261909c62acc56af5d10c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f42469d5ceb50ddc2d9411275e4b10e253d04c7871261909c62acc56af5d10c9", kill_on_drop: false }`
[INFO] [stdout] f42469d5ceb50ddc2d9411275e4b10e253d04c7871261909c62acc56af5d10c9