[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 try#5a3d3b91048a0adf280e7a4e589c1dda6443f172 for pr-115235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Frust_dns_client" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jawline/rust_dns_client on toolchain 5a3d3b91048a0adf280e7a4e589c1dda6443f172
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "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-6-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8f335d57ca24d359496bbc4cfee1f066d969718e53dbff82e1177470a6a9d5b9
[INFO] running `Command { std: "docker" "start" "-a" "8f335d57ca24d359496bbc4cfee1f066d969718e53dbff82e1177470a6a9d5b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8f335d57ca24d359496bbc4cfee1f066d969718e53dbff82e1177470a6a9d5b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f335d57ca24d359496bbc4cfee1f066d969718e53dbff82e1177470a6a9d5b9", kill_on_drop: false }`
[INFO] [stdout] 8f335d57ca24d359496bbc4cfee1f066d969718e53dbff82e1177470a6a9d5b9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fe5c5ff1b895631bd66c0bbd29f723cc767eb5c30ee5e673b8b176336475dfcc
[INFO] running `Command { std: "docker" "start" "-a" "fe5c5ff1b895631bd66c0bbd29f723cc767eb5c30ee5e673b8b176336475dfcc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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 `SOA_CODE` is never used
[INFO] [stdout]  --> src/record.rs:7:11
[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 `WKS_CODE` is never used
[INFO] [stdout]  --> src/record.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const WKS_CODE: u16 = 0xB;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PTR_CODE` is never used
[INFO] [stdout]  --> src/record.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PTR_CODE: u16 = 0xC;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SRV_CODE` is never used
[INFO] [stdout]   --> src/record.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const SRV_CODE: u16 = 0x21;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AAAA_CODE` is never used
[INFO] [stdout]   --> src/record.rs:13:11
[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 0.86s
[INFO] running `Command { std: "docker" "inspect" "fe5c5ff1b895631bd66c0bbd29f723cc767eb5c30ee5e673b8b176336475dfcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fe5c5ff1b895631bd66c0bbd29f723cc767eb5c30ee5e673b8b176336475dfcc", kill_on_drop: false }`
[INFO] [stdout] fe5c5ff1b895631bd66c0bbd29f723cc767eb5c30ee5e673b8b176336475dfcc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dc16707701797510ea3223b4bad9aa715b5d7ad064475eacbbc301b6167168e6
[INFO] running `Command { std: "docker" "start" "-a" "dc16707701797510ea3223b4bad9aa715b5d7ad064475eacbbc301b6167168e6", kill_on_drop: false }`
[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] [stderr]    Compiling dns_client v0.1.0 (/opt/rustwide/workdir)
[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 `SOA_CODE` is never used
[INFO] [stdout]  --> src/record.rs:7:11
[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 `WKS_CODE` is never used
[INFO] [stdout]  --> src/record.rs:8:11
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub const WKS_CODE: u16 = 0xB;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `PTR_CODE` is never used
[INFO] [stdout]  --> src/record.rs:9:11
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub const PTR_CODE: u16 = 0xC;
[INFO] [stdout]   |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `SRV_CODE` is never used
[INFO] [stdout]   --> src/record.rs:12:11
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub const SRV_CODE: u16 = 0x21;
[INFO] [stdout]    |           ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `AAAA_CODE` is never used
[INFO] [stdout]   --> src/record.rs:13:11
[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 0.42s
[INFO] running `Command { std: "docker" "inspect" "dc16707701797510ea3223b4bad9aa715b5d7ad064475eacbbc301b6167168e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc16707701797510ea3223b4bad9aa715b5d7ad064475eacbbc301b6167168e6", kill_on_drop: false }`
[INFO] [stdout] dc16707701797510ea3223b4bad9aa715b5d7ad064475eacbbc301b6167168e6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 7f08bf580067a8127e43f3d99328d871161a2135ad3dfc11dd57fb52730a1da8
[INFO] running `Command { std: "docker" "start" "-a" "7f08bf580067a8127e43f3d99328d871161a2135ad3dfc11dd57fb52730a1da8", 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: `dns_client` (lib test) generated 1 warning (1 duplicate)
[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 `SOA_CODE` is never used
[INFO] [stderr]  --> src/record.rs:7:11
[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 `WKS_CODE` is never used
[INFO] [stderr]  --> src/record.rs:8:11
[INFO] [stderr]   |
[INFO] [stderr] 8 | pub const WKS_CODE: u16 = 0xB;
[INFO] [stderr]   |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `PTR_CODE` is never used
[INFO] [stderr]  --> src/record.rs:9:11
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub const PTR_CODE: u16 = 0xC;
[INFO] [stderr]   |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `SRV_CODE` is never used
[INFO] [stderr]   --> src/record.rs:12:11
[INFO] [stderr]    |
[INFO] [stderr] 12 | pub const SRV_CODE: u16 = 0x21;
[INFO] [stderr]    |           ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: constant `AAAA_CODE` is never used
[INFO] [stderr]   --> src/record.rs:13:11
[INFO] [stderr]    |
[INFO] [stderr] 13 | pub const AAAA_CODE: u16 = 0x1C;
[INFO] [stderr]    |           ^^^^^^^^^
[INFO] [stderr] 
[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 src/lib.rs (/opt/rustwide/target/debug/deps/dns_client-c05de2f001240b69)
[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] [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]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dns_client-a487cef1779a9bc2)
[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" "7f08bf580067a8127e43f3d99328d871161a2135ad3dfc11dd57fb52730a1da8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f08bf580067a8127e43f3d99328d871161a2135ad3dfc11dd57fb52730a1da8", kill_on_drop: false }`
[INFO] [stdout] 7f08bf580067a8127e43f3d99328d871161a2135ad3dfc11dd57fb52730a1da8