[INFO] cloning repository https://github.com/morokumo/dns-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/morokumo/dns-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorokumo%2Fdns-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorokumo%2Fdns-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b595a9ead78dbd983dd0968f0855f610b4475b84
[INFO] testing morokumo/dns-rust against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmorokumo%2Fdns-rust" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/morokumo/dns-rust on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/morokumo/dns-rust
[INFO] finished tweaking git repo https://github.com/morokumo/dns-rust
[INFO] tweaked toml for git repo https://github.com/morokumo/dns-rust written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/morokumo/dns-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f23fcb933cdbccaa8a6b46ba7fdf78294581649a499f18a2afbe9b02203bb63
[INFO] running `Command { std: "docker" "start" "-a" "9f23fcb933cdbccaa8a6b46ba7fdf78294581649a499f18a2afbe9b02203bb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f23fcb933cdbccaa8a6b46ba7fdf78294581649a499f18a2afbe9b02203bb63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f23fcb933cdbccaa8a6b46ba7fdf78294581649a499f18a2afbe9b02203bb63", kill_on_drop: false }`
[INFO] [stdout] 9f23fcb933cdbccaa8a6b46ba7fdf78294581649a499f18a2afbe9b02203bb63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0808980bc610835ef6ca54f1da4f82d8e34b3e43edf2cce6b86bc850bf75c018
[INFO] running `Command { std: "docker" "start" "-a" "0808980bc610835ef6ca54f1da4f82d8e34b3e43edf2cce6b86bc850bf75c018", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns-server-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/packet.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         result.header.read(buffer);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.27s
[INFO] running `Command { std: "docker" "inspect" "0808980bc610835ef6ca54f1da4f82d8e34b3e43edf2cce6b86bc850bf75c018", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0808980bc610835ef6ca54f1da4f82d8e34b3e43edf2cce6b86bc850bf75c018", kill_on_drop: false }`
[INFO] [stdout] 0808980bc610835ef6ca54f1da4f82d8e34b3e43edf2cce6b86bc850bf75c018
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8e9184ef192a1a951991046ca3f8d8b2fbebe7b7ceac29ac9c02257e11294129
[INFO] running `Command { std: "docker" "start" "-a" "8e9184ef192a1a951991046ca3f8d8b2fbebe7b7ceac29ac9c02257e11294129", kill_on_drop: false }`
[INFO] [stderr]    Compiling dns-server-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/packet.rs:31:9
[INFO] [stdout]    |
[INFO] [stdout] 31 |         result.header.read(buffer);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.07s
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e9184ef192a1a951991046ca3f8d8b2fbebe7b7ceac29ac9c02257e11294129", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e9184ef192a1a951991046ca3f8d8b2fbebe7b7ceac29ac9c02257e11294129", kill_on_drop: false }`
[INFO] [stdout] 8e9184ef192a1a951991046ca3f8d8b2fbebe7b7ceac29ac9c02257e11294129
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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=warn" "-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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9732db12ca693ec182c93825dd46986804d4c8e3cd32bb8d901ec6073960538a
[INFO] running `Command { std: "docker" "start" "-a" "9732db12ca693ec182c93825dd46986804d4c8e3cd32bb8d901ec6073960538a", kill_on_drop: false }`
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/packet.rs:31:9
[INFO] [stderr]    |
[INFO] [stderr] 31 |         result.header.read(buffer);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: `dns-server-rust` (bin "dns-server-rust" test) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/dns_server_rust-9dbc7a72ebaf8bbf)
[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" "9732db12ca693ec182c93825dd46986804d4c8e3cd32bb8d901ec6073960538a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9732db12ca693ec182c93825dd46986804d4c8e3cd32bb8d901ec6073960538a", kill_on_drop: false }`
[INFO] [stdout] 9732db12ca693ec182c93825dd46986804d4c8e3cd32bb8d901ec6073960538a