Test

Add ErasedChild::id() #47

Job	Run time
Fmt check	13s
Test on macos with Rust stable (feat: default)	16s
Test on macos with Rust stable (feat: with-tokio)	25s
Test on macos with Rust 1.68.0 (feat: default)	5m 37s
Test on macos with Rust 1.68.0 (feat: with-tokio)	5m 50s
Test on ubuntu with Rust stable (feat: default)	11s
Test on ubuntu with Rust stable (feat: with-tokio)	1m 7s
Test on ubuntu with Rust 1.68.0 (feat: default)	3m 26s
Test on ubuntu with Rust 1.68.0 (feat: with-tokio)	6m 22s
Test on windows with Rust stable (feat: default)	2m 6s
Test on windows with Rust stable (feat: with-tokio)	2m 51s
Test on windows with Rust 1.68.0 (feat: default)	6m 51s
Test on windows with Rust 1.68.0 (feat: with-tokio)	7m 16s
	42m 31s

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