[INFO] fetching crate libp2p-mdns 0.24.0...
[INFO] checking libp2p-mdns-0.24.0 against master#7f5a42b073dc2bee2aa625052eb066ee07072048 for pr-78991
[INFO] extracting crate libp2p-mdns 0.24.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate libp2p-mdns 0.24.0 on toolchain 7f5a42b073dc2bee2aa625052eb066ee07072048
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libp2p-mdns 0.24.0
[INFO] finished tweaking crates.io crate libp2p-mdns 0.24.0
[INFO] tweaked toml for crates.io crate libp2p-mdns 0.24.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e32bb92bd7ab440caa8378791a9b2fad653e3dc194171cfba87bb560c5baf1e5
[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" "e32bb92bd7ab440caa8378791a9b2fad653e3dc194171cfba87bb560c5baf1e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e32bb92bd7ab440caa8378791a9b2fad653e3dc194171cfba87bb560c5baf1e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e32bb92bd7ab440caa8378791a9b2fad653e3dc194171cfba87bb560c5baf1e5", kill_on_drop: false }`
[INFO] [stdout] e32bb92bd7ab440caa8378791a9b2fad653e3dc194171cfba87bb560c5baf1e5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+7f5a42b073dc2bee2aa625052eb066ee07072048" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d76933523e32149af23408f81dfe74638d3ba28b0ca9b96fe69241fe92b8b9b9
[INFO] running `Command { std: "docker" "start" "-a" "d76933523e32149af23408f81dfe74638d3ba28b0ca9b96fe69241fe92b8b9b9", kill_on_drop: false }`
[INFO] [stderr]    Compiling tokio v0.3.3
[INFO] [stderr]     Checking dns-parser v0.8.0
[INFO] [stderr]     Checking net2 v0.2.35
[INFO] [stderr]     Checking if-addrs v0.6.5
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking rw-stream-sink v0.2.1
[INFO] [stderr]     Checking multistream-select v0.8.5
[INFO] [stderr]     Checking wasm-timer v0.2.5
[INFO] [stderr]    Compiling libp2p-core v0.24.0
[INFO] [stderr]     Checking libp2p-swarm v0.24.0
[INFO] [stderr]     Checking libp2p-mdns v0.24.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `MdnsPacket`, `build_query_response`, `build_service_discovery_response`
[INFO] [stdout]   --> src/behaviour.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::service::{MdnsPacket, build_query_response, build_service_discovery_response};
[INFO] [stdout]    |                      ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `address_translation`, `connection::ConnectionId`, `multiaddr::Protocol`
[INFO] [stdout]   --> src/behaviour.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     address_translation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     connection::ConnectionId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     multiaddr::Protocol
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NetworkBehaviourAction`, `NetworkBehaviour`, `PollParameters`, `ProtocolsHandler`, `protocols_handler::DummyProtocolsHandler`
[INFO] [stdout]   --> src/behaviour.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     NetworkBehaviour,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     NetworkBehaviourAction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     PollParameters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     ProtocolsHandler,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     protocols_handler::DummyProtocolsHandler
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::warn`
[INFO] [stdout]   --> src/behaviour.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use log::warn;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smallvec::SmallVec`
[INFO] [stdout]   --> src/behaviour.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use smallvec::SmallVec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `io`, `iter`, `mem`, `pin::Pin`, `task::Context`, `task::Poll`
[INFO] [stdout]   --> src/behaviour.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::{cmp, fmt, io, iter, mem, pin::Pin, time::Duration, task::Context, task::Poll};
[INFO] [stdout]    |           ^^^       ^^  ^^^^  ^^^  ^^^^^^^^                  ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Delay`, `Instant`
[INFO] [stdout]   --> src/behaviour.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 | use wasm_timer::{Delay, Instant};
[INFO] [stdout]    |                  ^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/behaviour.rs:44:1
[INFO] [stdout]     |
[INFO] [stdout] 44  | / macro_rules! codegen {
[INFO] [stdout] 45  | |     ($feature_name:expr, $behaviour_name:ident, $maybe_busy_wrapper:ident, $service_name:ty) => {
[INFO] [stdout] 46  | |
[INFO] [stdout] 47  | | /// A `NetworkBehaviour` for mDNS. Automatically discovers peers on the local network and adds
[INFO] [stdout] ...   |
[INFO] [stdout] 292 | | };
[INFO] [stdout] 293 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Left`, `Right`
[INFO] [stdout]   --> src/service.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 | use either::Either::{Left, Right};
[INFO] [stdout]    |                      ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `future`
[INFO] [stdout]   --> src/service.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::{future, prelude::*};
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instant`, `io`
[INFO] [stdout]   --> src/service.rs:27:39
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::{convert::TryFrom as _, fmt, io, net::Ipv4Addr, net::SocketAddr, str, time::{Duration, Instant}};
[INFO] [stdout]    |                                       ^^                                                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_timer::Interval`
[INFO] [stdout]   --> src/service.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use wasm_timer::Interval;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/service.rs:40:1
[INFO] [stdout]     |
[INFO] [stdout] 40  | / macro_rules! codegen {
[INFO] [stdout] 41  | |     ($feature_name:expr, $service_name:ident, $udp_socket:ty, $udp_socket_from_std:tt) => {
[INFO] [stdout] 42  | |
[INFO] [stdout] 43  | | /// A running service that discovers libp2p peers and responds to other libp2p peers' queries on
[INFO] [stdout] ...   |
[INFO] [stdout] 295 | | };
[INFO] [stdout] 296 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `MdnsPacket`, `build_query_response`, `build_service_discovery_response`
[INFO] [stdout]   --> src/behaviour.rs:21:22
[INFO] [stdout]    |
[INFO] [stdout] 21 | use crate::service::{MdnsPacket, build_query_response, build_service_discovery_response};
[INFO] [stdout]    |                      ^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `address_translation`, `connection::ConnectionId`, `multiaddr::Protocol`
[INFO] [stdout]   --> src/behaviour.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     address_translation,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     connection::ConnectionId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     multiaddr::Protocol
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `NetworkBehaviourAction`, `NetworkBehaviour`, `PollParameters`, `ProtocolsHandler`, `protocols_handler::DummyProtocolsHandler`
[INFO] [stdout]   --> src/behaviour.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     NetworkBehaviour,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 32 |     NetworkBehaviourAction,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 33 |     PollParameters,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^
[INFO] [stdout] 34 |     ProtocolsHandler,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 35 |     protocols_handler::DummyProtocolsHandler
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::warn`
[INFO] [stdout]   --> src/behaviour.rs:37:5
[INFO] [stdout]    |
[INFO] [stdout] 37 | use log::warn;
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `smallvec::SmallVec`
[INFO] [stdout]   --> src/behaviour.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 | use smallvec::SmallVec;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `cmp`, `io`, `iter`, `mem`, `pin::Pin`, `task::Context`, `task::Poll`
[INFO] [stdout]   --> src/behaviour.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | use std::{cmp, fmt, io, iter, mem, pin::Pin, time::Duration, task::Context, task::Poll};
[INFO] [stdout]    |           ^^^       ^^  ^^^^  ^^^  ^^^^^^^^                  ^^^^^^^^^^^^^  ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Delay`, `Instant`
[INFO] [stdout]   --> src/behaviour.rs:40:18
[INFO] [stdout]    |
[INFO] [stdout] 40 | use wasm_timer::{Delay, Instant};
[INFO] [stdout]    |                  ^^^^^  ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/behaviour.rs:44:1
[INFO] [stdout]     |
[INFO] [stdout] 44  | / macro_rules! codegen {
[INFO] [stdout] 45  | |     ($feature_name:expr, $behaviour_name:ident, $maybe_busy_wrapper:ident, $service_name:ty) => {
[INFO] [stdout] 46  | |
[INFO] [stdout] 47  | | /// A `NetworkBehaviour` for mDNS. Automatically discovers peers on the local network and adds
[INFO] [stdout] ...   |
[INFO] [stdout] 292 | | };
[INFO] [stdout] 293 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Left`, `Right`
[INFO] [stdout]   --> src/service.rs:23:22
[INFO] [stdout]    |
[INFO] [stdout] 23 | use either::Either::{Left, Right};
[INFO] [stdout]    |                      ^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `future`
[INFO] [stdout]   --> src/service.rs:24:15
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::{future, prelude::*};
[INFO] [stdout]    |               ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Instant`, `io`
[INFO] [stdout]   --> src/service.rs:27:39
[INFO] [stdout]    |
[INFO] [stdout] 27 | use std::{convert::TryFrom as _, fmt, io, net::Ipv4Addr, net::SocketAddr, str, time::{Duration, Instant}};
[INFO] [stdout]    |                                       ^^                                                        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `wasm_timer::Interval`
[INFO] [stdout]   --> src/service.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 | use wasm_timer::Interval;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/service.rs:40:1
[INFO] [stdout]     |
[INFO] [stdout] 40  | / macro_rules! codegen {
[INFO] [stdout] 41  | |     ($feature_name:expr, $service_name:ident, $udp_socket:ty, $udp_socket_from_std:tt) => {
[INFO] [stdout] 42  | |
[INFO] [stdout] 43  | | /// A running service that discovers libp2p peers and responds to other libp2p peers' queries on
[INFO] [stdout] ...   |
[INFO] [stdout] 295 | | };
[INFO] [stdout] 296 | | }
[INFO] [stdout]     | |_^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused macro definition
[INFO] [stdout]    --> src/service.rs:589:5
[INFO] [stdout]     |
[INFO] [stdout] 589 | /     macro_rules! testgen {
[INFO] [stdout] 590 | |         ($runtime_name:ident, $service_name:ty, $block_on_fn:tt) => {
[INFO] [stdout] 591 | |     mod $runtime_name {
[INFO] [stdout] 592 | |         use libp2p_core::{PeerId, multiaddr::multihash};
[INFO] [stdout] ...   |
[INFO] [stdout] 690 | |     }
[INFO] [stdout] 691 | |     }
[INFO] [stdout]     | |_____^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::prelude`
[INFO] [stdout]   --> src/behaviour.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use futures::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]   --> src/service.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::{future, prelude::*};
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MDNS_RESPONSE_TTL`
[INFO] [stdout]   --> src/behaviour.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | const MDNS_RESPONSE_TTL: std::time::Duration = Duration::from_secs(5 * 60);
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_query`
[INFO] [stdout]   --> src/dns.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 | pub fn build_query() -> Vec<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_from_bytes`
[INFO] [stdout]    --> src/service.rs:318:8
[INFO] [stdout]     |
[INFO] [stdout] 318 |     fn new_from_bytes(buf: &[u8], from: SocketAddr) -> Option<MdnsPacket> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/service.rs:430:8
[INFO] [stdout]     |
[INFO] [stdout] 430 |     fn new(packet: Packet<'_>, from: SocketAddr) -> MdnsResponse {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `futures::prelude`
[INFO] [stdout]   --> src/behaviour.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 | use futures::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `prelude`
[INFO] [stdout]   --> src/service.rs:24:23
[INFO] [stdout]    |
[INFO] [stdout] 24 | use futures::{future, prelude::*};
[INFO] [stdout]    |                       ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `MDNS_RESPONSE_TTL`
[INFO] [stdout]   --> src/behaviour.rs:42:1
[INFO] [stdout]    |
[INFO] [stdout] 42 | const MDNS_RESPONSE_TTL: std::time::Duration = Duration::from_secs(5 * 60);
[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: `new_from_bytes`
[INFO] [stdout]    --> src/service.rs:318:8
[INFO] [stdout]     |
[INFO] [stdout] 318 |     fn new_from_bytes(buf: &[u8], from: SocketAddr) -> Option<MdnsPacket> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/service.rs:430:8
[INFO] [stdout]     |
[INFO] [stdout] 430 |     fn new(packet: Packet<'_>, from: SocketAddr) -> MdnsResponse {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 19 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 15.15s
[INFO] running `Command { std: "docker" "inspect" "d76933523e32149af23408f81dfe74638d3ba28b0ca9b96fe69241fe92b8b9b9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d76933523e32149af23408f81dfe74638d3ba28b0ca9b96fe69241fe92b8b9b9", kill_on_drop: false }`
[INFO] [stdout] d76933523e32149af23408f81dfe74638d3ba28b0ca9b96fe69241fe92b8b9b9