[INFO] cloning repository https://github.com/SamuelSchlesinger/rust-udp-playtime
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/SamuelSchlesinger/rust-udp-playtime" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelSchlesinger%2Frust-udp-playtime", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelSchlesinger%2Frust-udp-playtime'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8884f6cce49e2e1219c4fc79025edc4f056ce02d
[INFO] checking SamuelSchlesinger/rust-udp-playtime against master#b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18 for pr-79470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FSamuelSchlesinger%2Frust-udp-playtime" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/SamuelSchlesinger/rust-udp-playtime on toolchain b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/SamuelSchlesinger/rust-udp-playtime
[INFO] finished tweaking git repo https://github.com/SamuelSchlesinger/rust-udp-playtime
[INFO] tweaked toml for git repo https://github.com/SamuelSchlesinger/rust-udp-playtime written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/SamuelSchlesinger/rust-udp-playtime already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0886828e9906c7e2fe91da53c31dca393bd12d60a55b07b8f6b4c1b9f5a0f91c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0886828e9906c7e2fe91da53c31dca393bd12d60a55b07b8f6b4c1b9f5a0f91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0886828e9906c7e2fe91da53c31dca393bd12d60a55b07b8f6b4c1b9f5a0f91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0886828e9906c7e2fe91da53c31dca393bd12d60a55b07b8f6b4c1b9f5a0f91c", kill_on_drop: false }`
[INFO] [stdout] 0886828e9906c7e2fe91da53c31dca393bd12d60a55b07b8f6b4c1b9f5a0f91c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+b7ebc6b0c1ba3c27ebb17c0b496ece778ef11e18" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4090aee10c87d6de9457d690bfb25a3c211748d3bfb2b44a7b47482e622eb31d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4090aee10c87d6de9457d690bfb25a3c211748d3bfb2b44a7b47482e622eb31d", kill_on_drop: false }`
[INFO] [stderr]     Checking zampl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout]   = help: consider using `min_const_generics` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
[INFO] [stdout]  --> src/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(const_generics)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(incomplete_features)]` on by default
[INFO] [stdout]   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information
[INFO] [stdout]   = help: consider using `min_const_generics` instead, which is more stable and complete
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |         move |x: (std::net::SocketAddr, String),
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `join_handle`
[INFO] [stdout]  --> src/consumer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     join_handle: std::thread::JoinHandle<Message>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `join_handle`
[INFO] [stdout]   --> src/consumer.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn join_handle(self) -> std::thread::JoinHandle<Message> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `x`
[INFO] [stdout]   --> src/main.rs:22:15
[INFO] [stdout]    |
[INFO] [stdout] 22 |         move |x: (std::net::SocketAddr, String),
[INFO] [stdout]    |               ^ help: if this is intentional, prefix it with an underscore: `_x`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `join_handle`
[INFO] [stdout]  --> src/consumer.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     join_handle: std::thread::JoinHandle<Message>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `join_handle`
[INFO] [stdout]   --> src/consumer.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |     pub fn join_handle(self) -> std::thread::JoinHandle<Message> {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `Command { std: "docker" "inspect" "4090aee10c87d6de9457d690bfb25a3c211748d3bfb2b44a7b47482e622eb31d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4090aee10c87d6de9457d690bfb25a3c211748d3bfb2b44a7b47482e622eb31d", kill_on_drop: false }`
[INFO] [stdout] 4090aee10c87d6de9457d690bfb25a3c211748d3bfb2b44a7b47482e622eb31d