[INFO] cloning repository https://github.com/SharkyRawr/rust-dnstest
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SharkyRawr/rust-dnstest" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSharkyRawr%2Frust-dnstest", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSharkyRawr%2Frust-dnstest'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6b54c04ebb7db39d91e52d7b903e3ecf469cafa1
[INFO] checking SharkyRawr/rust-dnstest against master#90442458ac46b1d5eed752c316da25450f67285b for pr-81477
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSharkyRawr%2Frust-dnstest" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SharkyRawr/rust-dnstest on toolchain 90442458ac46b1d5eed752c316da25450f67285b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SharkyRawr/rust-dnstest
[INFO] finished tweaking git repo https://github.com/SharkyRawr/rust-dnstest
[INFO] tweaked toml for git repo https://github.com/SharkyRawr/rust-dnstest written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/SharkyRawr/rust-dnstest already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79bbbb0f6c9ff8435ebea49b6f00de23002c3050dc96b8f49c0b98e44e92f9f3
[INFO] running `Command { std: "docker" "start" "-a" "79bbbb0f6c9ff8435ebea49b6f00de23002c3050dc96b8f49c0b98e44e92f9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79bbbb0f6c9ff8435ebea49b6f00de23002c3050dc96b8f49c0b98e44e92f9f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79bbbb0f6c9ff8435ebea49b6f00de23002c3050dc96b8f49c0b98e44e92f9f3", kill_on_drop: false }`
[INFO] [stdout] 79bbbb0f6c9ff8435ebea49b6f00de23002c3050dc96b8f49c0b98e44e92f9f3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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:ea7d7bff36b2ba8ce4de8bba1d2dea90376bc481f1a945a913994a8c492e40c1" "/opt/rustwide/cargo-home/bin/cargo" "+90442458ac46b1d5eed752c316da25450f67285b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e0c44afb8d9206bd9652885090adff1a68cbe69bec6afe90e87ffaf6d77288e6
[INFO] running `Command { std: "docker" "start" "-a" "e0c44afb8d9206bd9652885090adff1a68cbe69bec6afe90e87ffaf6d77288e6", kill_on_drop: false }`
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking rust-dnsbench v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `debug`, `warn`
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{error, warn, info, debug};
[INFO] [stdout]   |                  ^^^^        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]  --> src/dns.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info, warn};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `debug`, `warn`
[INFO] [stdout]  --> src/main.rs:1:18
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{error, warn, info, debug};
[INFO] [stdout]   |                  ^^^^        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `warn`
[INFO] [stdout]  --> src/dns.rs:1:24
[INFO] [stdout]   |
[INFO] [stdout] 1 | use log::{debug, info, warn};
[INFO] [stdout]   |                        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `Command { std: "docker" "inspect" "e0c44afb8d9206bd9652885090adff1a68cbe69bec6afe90e87ffaf6d77288e6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e0c44afb8d9206bd9652885090adff1a68cbe69bec6afe90e87ffaf6d77288e6", kill_on_drop: false }`
[INFO] [stdout] e0c44afb8d9206bd9652885090adff1a68cbe69bec6afe90e87ffaf6d77288e6