[INFO] fetching crate godrays 0.1.0...
[INFO] testing godrays-0.1.0 against try#c2e32f1c9652b13ed99608599c1e855462f421f3 for pr-146098-7
[INFO] extracting crate godrays 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate godrays 0.1.0
[INFO] finished tweaking crates.io crate godrays 0.1.0
[INFO] tweaked toml for crates.io crate godrays 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate godrays 0.1.0 on toolchain c2e32f1c9652b13ed99608599c1e855462f421f3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate godrays 0.1.0 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" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] e27e163e76878f984c2496228d1b6123188cca46bddc9af790d1fbfa64ba0d62
[INFO] running `Command { std: "docker" "start" "-a" "e27e163e76878f984c2496228d1b6123188cca46bddc9af790d1fbfa64ba0d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e27e163e76878f984c2496228d1b6123188cca46bddc9af790d1fbfa64ba0d62", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e27e163e76878f984c2496228d1b6123188cca46bddc9af790d1fbfa64ba0d62", kill_on_drop: false }`
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[INFO] [stdout] 60b06b36dce803974921bccd19989adba531fb994582c0154d9557da499b0be9
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[INFO] [stderr]    Compiling hickory-resolver v0.24.1
[INFO] [stderr]    Compiling local-ip-address v0.6.2
[INFO] [stderr]    Compiling async-std-resolver v0.24.1
[INFO] [stderr]    Compiling libp2p-dns v0.42.0
[INFO] [stderr]    Compiling libp2p-mdns v0.46.0
[INFO] [stderr]    Compiling libp2p-allow-block-list v0.4.0
[INFO] [stderr]    Compiling libp2p-connection-limits v0.4.0
[INFO] [stderr]    Compiling libp2p v0.54.1
[INFO] [stderr]    Compiling godrays v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::prelude::FutureExt`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::prelude::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossbeam_skiplist::SkipMap`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossbeam_skiplist::SkipMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p::swarm::NetworkBehaviour`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libp2p::swarm::NetworkBehaviour;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]  --> src/core/mdns.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_broadcast::{Receiver, Sender};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::stream::interval`
[INFO] [stdout]  --> src/core/mdns.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::stream::interval;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClusterAddresses`
[INFO] [stdout]   --> src/core/mdns.rs:17:32
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::core::clusteraddr::{ClusterAddresses, DiscoveredAddr};
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::IpAddr`
[INFO] [stdout]  --> src/core/clusteraddr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::net::IpAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/core/clusteraddr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/core/mdns.rs:43:30
[INFO] [stdout]    |
[INFO] [stdout] 43 |             .with_behaviour(|key| behavior)
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/core/mdns.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(local_key: identity::Keypair, tx: Sender<DiscoveredAddr>) -> Result<Self> {
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/lib.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (tx, rx) = async_broadcast::broadcast(1_000);
[INFO] [stdout]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `local_key`, `local_peer_id`, and `expected_listener_id` are never read
[INFO] [stdout]   --> src/core/mdns.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct GodraysMdns {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 22 |     local_key: identity::Keypair,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 23 |     local_peer_id: PeerId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 24 |     expected_listener_id: ListenerId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GodraysMdns` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]   --> src/core/clusteraddr.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         state.finish();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = state.finish();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/bin/grays.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grs1`
[INFO] [stdout]   --> src/bin/grays.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let grs1 = grs.clone();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_grs1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 59.59s
[INFO] running `Command { std: "docker" "inspect" "60b06b36dce803974921bccd19989adba531fb994582c0154d9557da499b0be9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60b06b36dce803974921bccd19989adba531fb994582c0154d9557da499b0be9", kill_on_drop: false }`
[INFO] [stdout] 60b06b36dce803974921bccd19989adba531fb994582c0154d9557da499b0be9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] db5adfb5b7fc68a323f6c4a472bb83abb158a83aba48e11ab9069229612d5c7e
[INFO] running `Command { std: "docker" "start" "-a" "db5adfb5b7fc68a323f6c4a472bb83abb158a83aba48e11ab9069229612d5c7e", kill_on_drop: false }`
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::prelude::FutureExt`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::prelude::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossbeam_skiplist::SkipMap`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossbeam_skiplist::SkipMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p::swarm::NetworkBehaviour`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libp2p::swarm::NetworkBehaviour;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]  --> src/core/mdns.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_broadcast::{Receiver, Sender};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::stream::interval`
[INFO] [stdout]  --> src/core/mdns.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::stream::interval;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClusterAddresses`
[INFO] [stdout]   --> src/core/mdns.rs:17:32
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::core::clusteraddr::{ClusterAddresses, DiscoveredAddr};
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::IpAddr`
[INFO] [stdout]  --> src/core/clusteraddr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::net::IpAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/core/clusteraddr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/core/mdns.rs:43:30
[INFO] [stdout]    |
[INFO] [stdout] 43 |             .with_behaviour(|key| behavior)
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/core/mdns.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(local_key: identity::Keypair, tx: Sender<DiscoveredAddr>) -> Result<Self> {
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/lib.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (tx, rx) = async_broadcast::broadcast(1_000);
[INFO] [stdout]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `local_key`, `local_peer_id`, and `expected_listener_id` are never read
[INFO] [stdout]   --> src/core/mdns.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct GodraysMdns {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 22 |     local_key: identity::Keypair,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 23 |     local_peer_id: PeerId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 24 |     expected_listener_id: ListenerId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GodraysMdns` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling godrays v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]   --> src/core/clusteraddr.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         state.finish();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = state.finish();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rand::Rng`
[INFO] [stdout]  --> src/bin/grays.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use rand::Rng;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::sync::Arc`
[INFO] [stdout]  --> src/lib.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::sync::Arc;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::prelude::FutureExt`
[INFO] [stdout]  --> src/lib.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use async_std::prelude::FutureExt;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crossbeam_skiplist::SkipMap`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crossbeam_skiplist::SkipMap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `libp2p::swarm::NetworkBehaviour`
[INFO] [stdout]  --> src/lib.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libp2p::swarm::NetworkBehaviour;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Receiver`
[INFO] [stdout]  --> src/core/mdns.rs:3:23
[INFO] [stdout]   |
[INFO] [stdout] 3 | use async_broadcast::{Receiver, Sender};
[INFO] [stdout]   |                       ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `async_std::stream::interval`
[INFO] [stdout]  --> src/core/mdns.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use async_std::stream::interval;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `ClusterAddresses`
[INFO] [stdout]   --> src/core/mdns.rs:17:32
[INFO] [stdout]    |
[INFO] [stdout] 17 | use crate::core::clusteraddr::{ClusterAddresses, DiscoveredAddr};
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::net::IpAddr`
[INFO] [stdout]  --> src/core/clusteraddr.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::net::IpAddr;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `log::info`
[INFO] [stdout]  --> src/core/clusteraddr.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use log::info;
[INFO] [stdout]   |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `grs1`
[INFO] [stdout]   --> src/bin/grays.rs:24:9
[INFO] [stdout]    |
[INFO] [stdout] 24 |     let grs1 = grs.clone();
[INFO] [stdout]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_grs1`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `key`
[INFO] [stdout]   --> src/core/mdns.rs:43:30
[INFO] [stdout]    |
[INFO] [stdout] 43 |             .with_behaviour(|key| behavior)
[INFO] [stdout]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `tx`
[INFO] [stdout]   --> src/core/mdns.rs:30:46
[INFO] [stdout]    |
[INFO] [stdout] 30 |     pub fn new(local_key: identity::Keypair, tx: Sender<DiscoveredAddr>) -> Result<Self> {
[INFO] [stdout]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rx`
[INFO] [stdout]   --> src/lib.rs:25:18
[INFO] [stdout]    |
[INFO] [stdout] 25 |         let (tx, rx) = async_broadcast::broadcast(1_000);
[INFO] [stdout]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `local_key`, `local_peer_id`, and `expected_listener_id` are never read
[INFO] [stdout]   --> src/core/mdns.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct GodraysMdns {
[INFO] [stdout]    |            ----------- fields in this struct
[INFO] [stdout] 22 |     local_key: identity::Keypair,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 23 |     local_peer_id: PeerId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout] 24 |     expected_listener_id: ListenerId,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GodraysMdns` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused return value of `finish` that must be used
[INFO] [stdout]   --> src/core/clusteraddr.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |         state.finish();
[INFO] [stdout]    |         ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 40 |         let _ = state.finish();
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.75s
[INFO] running `Command { std: "docker" "inspect" "db5adfb5b7fc68a323f6c4a472bb83abb158a83aba48e11ab9069229612d5c7e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "db5adfb5b7fc68a323f6c4a472bb83abb158a83aba48e11ab9069229612d5c7e", kill_on_drop: false }`
[INFO] [stdout] db5adfb5b7fc68a323f6c4a472bb83abb158a83aba48e11ab9069229612d5c7e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c2e32f1c9652b13ed99608599c1e855462f421f3" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] f24bab1042ce11315cf636af83cb25cdf63ab0e6d066edf2e94deb03be658901
[INFO] running `Command { std: "docker" "start" "-a" "f24bab1042ce11315cf636af83cb25cdf63ab0e6d066edf2e94deb03be658901", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::sync::Arc`
[INFO] [stderr]  --> src/lib.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::sync::Arc;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `async_std::prelude::FutureExt`
[INFO] [stderr]  --> src/lib.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use async_std::prelude::FutureExt;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `crossbeam_skiplist::SkipMap`
[INFO] [stderr]  --> src/lib.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use crossbeam_skiplist::SkipMap;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `libp2p::swarm::NetworkBehaviour`
[INFO] [stderr]  --> src/lib.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use libp2p::swarm::NetworkBehaviour;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Receiver`
[INFO] [stderr]  --> src/core/mdns.rs:3:23
[INFO] [stderr]   |
[INFO] [stderr] 3 | use async_broadcast::{Receiver, Sender};
[INFO] [stderr]   |                       ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `async_std::stream::interval`
[INFO] [stderr]  --> src/core/mdns.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use async_std::stream::interval;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `ClusterAddresses`
[INFO] [stderr]   --> src/core/mdns.rs:17:32
[INFO] [stderr]    |
[INFO] [stderr] 17 | use crate::core::clusteraddr::{ClusterAddresses, DiscoveredAddr};
[INFO] [stderr]    |                                ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::IpAddr`
[INFO] [stderr]  --> src/core/clusteraddr.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use std::net::IpAddr;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `log::info`
[INFO] [stderr]  --> src/core/clusteraddr.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use log::info;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `key`
[INFO] [stderr]   --> src/core/mdns.rs:43:30
[INFO] [stderr]    |
[INFO] [stderr] 43 |             .with_behaviour(|key| behavior)
[INFO] [stderr]    |                              ^^^ help: if this is intentional, prefix it with an underscore: `_key`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `tx`
[INFO] [stderr]   --> src/core/mdns.rs:30:46
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn new(local_key: identity::Keypair, tx: Sender<DiscoveredAddr>) -> Result<Self> {
[INFO] [stderr]    |                                              ^^ help: if this is intentional, prefix it with an underscore: `_tx`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `rx`
[INFO] [stderr]   --> src/lib.rs:25:18
[INFO] [stderr]    |
[INFO] [stderr] 25 |         let (tx, rx) = async_broadcast::broadcast(1_000);
[INFO] [stderr]    |                  ^^ help: if this is intentional, prefix it with an underscore: `_rx`
[INFO] [stderr] 
[INFO] [stderr] warning: fields `local_key`, `local_peer_id`, and `expected_listener_id` are never read
[INFO] [stderr]   --> src/core/mdns.rs:22:5
[INFO] [stderr]    |
[INFO] [stderr] 21 | pub struct GodraysMdns {
[INFO] [stderr]    |            ----------- fields in this struct
[INFO] [stderr] 22 |     local_key: identity::Keypair,
[INFO] [stderr]    |     ^^^^^^^^^
[INFO] [stderr] 23 |     local_peer_id: PeerId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^
[INFO] [stderr] 24 |     expected_listener_id: ListenerId,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `GodraysMdns` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `finish` that must be used
[INFO] [stderr]   --> src/core/clusteraddr.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |         state.finish();
[INFO] [stderr]    |         ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] help: use `let _ = ...` to ignore the resulting value
[INFO] [stderr]    |
[INFO] [stderr] 40 |         let _ = state.finish();
[INFO] [stderr]    |         +++++++
[INFO] [stderr] 
[INFO] [stderr] warning: `godrays` (lib) generated 14 warnings (run `cargo fix --lib -p godrays` to apply 12 suggestions)
[INFO] [stderr] warning: `godrays` (lib test) generated 14 warnings (14 duplicates)
[INFO] [stderr] warning: unused import: `rand::Rng`
[INFO] [stderr]  --> src/bin/grays.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use rand::Rng;
[INFO] [stderr]   |     ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `grs1`
[INFO] [stderr]   --> src/bin/grays.rs:24:9
[INFO] [stderr]    |
[INFO] [stderr] 24 |     let grs1 = grs.clone();
[INFO] [stderr]    |         ^^^^ help: if this is intentional, prefix it with an underscore: `_grs1`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `godrays` (bin "grays" test) generated 2 warnings (run `cargo fix --bin "grays" -p godrays --tests` to apply 2 suggestions)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.36s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/godrays-e88095792ec74414)
[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] [stderr]      Running unittests src/bin/grays.rs (/opt/rustwide/target/debug/deps/grays-a0c64894f6515503)
[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] [stderr]    Doc-tests godrays
[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" "f24bab1042ce11315cf636af83cb25cdf63ab0e6d066edf2e94deb03be658901", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f24bab1042ce11315cf636af83cb25cdf63ab0e6d066edf2e94deb03be658901", kill_on_drop: false }`
[INFO] [stdout] f24bab1042ce11315cf636af83cb25cdf63ab0e6d066edf2e94deb03be658901
