[INFO] cloning repository https://github.com/warsocket/SimpleDNServer
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/warsocket/SimpleDNServer" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarsocket%2FSimpleDNServer", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarsocket%2FSimpleDNServer'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e0e1b1befe929cb37b740821b0a9c6c6846a5dd3
[INFO] checking warsocket/SimpleDNServer against try#db4e1d23234d93b5e96ecc768b35d9090c32cddf for pr-149901
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwarsocket%2FSimpleDNServer" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/warsocket/SimpleDNServer
[INFO] finished tweaking git repo https://github.com/warsocket/SimpleDNServer
[INFO] tweaked toml for git repo https://github.com/warsocket/SimpleDNServer written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/warsocket/SimpleDNServer on toolchain db4e1d23234d93b5e96ecc768b35d9090c32cddf
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/warsocket/SimpleDNServer 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" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] be6327191e51eb7bf3b2056e7696207e4bc6af78b1b59d7dadf6909b707f4ce7
[INFO] running `Command { std: "docker" "start" "-a" "be6327191e51eb7bf3b2056e7696207e4bc6af78b1b59d7dadf6909b707f4ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "be6327191e51eb7bf3b2056e7696207e4bc6af78b1b59d7dadf6909b707f4ce7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "be6327191e51eb7bf3b2056e7696207e4bc6af78b1b59d7dadf6909b707f4ce7", kill_on_drop: false }`
[INFO] [stdout] be6327191e51eb7bf3b2056e7696207e4bc6af78b1b59d7dadf6909b707f4ce7
[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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+db4e1d23234d93b5e96ecc768b35d9090c32cddf" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 958c950b9ec6334a555be7cc8ab3505038107186b645ec053c598b734d263920
[INFO] running `Command { std: "docker" "start" "-a" "958c950b9ec6334a555be7cc8ab3505038107186b645ec053c598b734d263920", kill_on_drop: false }`
[INFO] [stderr]     Checking dns v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/main.rs:387:35
[INFO] [stdout]     |
[INFO] [stdout] 387 |                 let ttl = unsafe{ transmute::<u32,[u8;4]>(record.ttl) };
[INFO] [stdout]     |                                   -----------------------^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary transmute
[INFO] [stdout]    --> src/main.rs:387:35
[INFO] [stdout]     |
[INFO] [stdout] 387 |                 let ttl = unsafe{ transmute::<u32,[u8;4]>(record.ttl) };
[INFO] [stdout]     |                                   -----------------------^^^^^^^^^^^^
[INFO] [stdout]     |                                   |
[INFO] [stdout]     |                                   help: replace this with: `u32::to_ne_bytes`
[INFO] [stdout]     |
[INFO] [stdout]     = help: there's also `to_le_bytes` and `to_be_bytes` if you expect a particular byte order
[INFO] [stdout]     = note: `#[warn(unnecessary_transmutes)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "958c950b9ec6334a555be7cc8ab3505038107186b645ec053c598b734d263920", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "958c950b9ec6334a555be7cc8ab3505038107186b645ec053c598b734d263920", kill_on_drop: false }`
[INFO] [stdout] 958c950b9ec6334a555be7cc8ab3505038107186b645ec053c598b734d263920