[INFO] fetching crate godrays 0.1.0...
[INFO] testing godrays-0.1.0 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate godrays 0.1.0 into /workspace/builds/worker-5-tc1/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-5-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate godrays 0.1.0 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "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" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "1f7ef73df5e99721b46a6b49a6d71b97a271d5adb2df64d27b66a5d655247921", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "start" "-a" "8d16709479110b1f59148a346006bec2279c48e9fb6774274cafeccd4e29f27b", kill_on_drop: false }`
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[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)]` 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: `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]    = note: `#[warn(unused_variables)]` 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] 
[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)]` 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)]` 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)]` 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)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1m 07s
[INFO] running `Command { std: "docker" "inspect" "8d16709479110b1f59148a346006bec2279c48e9fb6774274cafeccd4e29f27b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d16709479110b1f59148a346006bec2279c48e9fb6774274cafeccd4e29f27b", kill_on_drop: false }`
[INFO] [stdout] 8d16709479110b1f59148a346006bec2279c48e9fb6774274cafeccd4e29f27b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d6f73b985e0eebeda9432be131210089525d4fca5bde0ec66a489339c35a7b6
[INFO] running `Command { std: "docker" "start" "-a" "3d6f73b985e0eebeda9432be131210089525d4fca5bde0ec66a489339c35a7b6", kill_on_drop: false }`
[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)]` 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: `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]    = note: `#[warn(unused_variables)]` 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] 
[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)]` 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)]` 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)]` 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)]` 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)]` 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: `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]    = note: `#[warn(unused_variables)]` 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] 
[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)]` 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)]` 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 1.20s
[INFO] running `Command { std: "docker" "inspect" "3d6f73b985e0eebeda9432be131210089525d4fca5bde0ec66a489339c35a7b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d6f73b985e0eebeda9432be131210089525d4fca5bde0ec66a489339c35a7b6", kill_on_drop: false }`
[INFO] [stdout] 3d6f73b985e0eebeda9432be131210089525d4fca5bde0ec66a489339c35a7b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2fc433fad05c6f64ab4e8e82f20e26db27f170aa67dcbffd492001ae118a3fe1
[INFO] running `Command { std: "docker" "start" "-a" "2fc433fad05c6f64ab4e8e82f20e26db27f170aa67dcbffd492001ae118a3fe1", 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)]` 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: `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]    = note: `#[warn(unused_variables)]` on by default
[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] 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)]` 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)]` 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 9 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)]` 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)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `godrays` (bin "grays" test) generated 2 warnings (run `cargo fix --bin "grays" --tests` to apply 1 suggestion)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.32s
[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" "2fc433fad05c6f64ab4e8e82f20e26db27f170aa67dcbffd492001ae118a3fe1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2fc433fad05c6f64ab4e8e82f20e26db27f170aa67dcbffd492001ae118a3fe1", kill_on_drop: false }`
[INFO] [stdout] 2fc433fad05c6f64ab4e8e82f20e26db27f170aa67dcbffd492001ae118a3fe1