test

discovery: don't panic on libmdns errors (#1427) #2206

Job	Run time
cargo fmt	6s
cargo +stable clippy (ubuntu-latest)	7m 8s
cargo +1.75 check (ubuntu-latest)	3m 38s
cargo +stable check (ubuntu-latest)	4m 45s
cargo +1.75 check (windows-latest)	4m 42s
cross +1.75 build armv7-unknown-linux-gnueabihf	56s
cargo +beta check (ubuntu-latest)	3m 17s
cargo +stable check (windows-latest)	5m 40s
cross +stable build armv7-unknown-linux-gnueabihf	2m 42s
cross +1.75 build aarch64-unknown-linux-gnu	58s
cross +stable build aarch64-unknown-linux-gnu	2m 42s
cross +1.75 build riscv64gc-unknown-linux-gnu	55s
cross +stable build riscv64gc-unknown-linux-gnu	2m 28s
	39m 57s

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