Tree style builder #296

Job	Run time
cargo check (msrv) (android) (armv7-linux-androideabi)	39s
cargo clippy (android) (armv7-linux-androideabi)	1m 13s
cargo check (msrv) (android) (aarch64-linux-android)	35s
cargo clippy (windows-latest)	2m 14s
cargo clippy (android) (aarch64-linux-android)	51s
cargo check (msrv) (windows-latest)	1m 6s
cargo clippy (macos-latest)	56s
cargo check (msrv) (android) (x86_64-linux-android)	31s
cargo clippy (android) (x86_64-linux-android)	1m 19s
cargo check (msrv) (macos-latest)	28s
cargo clippy (ubuntu-latest)	49s
cargo check (msrv) (ubuntu-latest)	32s
cargo doc (windows-latest)	1m 12s
cargo fmt	30s
cargo doc (macos-latest)	25s
cargo test (windows-latest)	1m 44s
typos	7s
cargo doc (ubuntu-latest)	18s
cargo test (macos-latest)	38s
cargo test (ubuntu-latest)	28s
	16m 35s

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