Add toolchain setup to all features test (#1171) #3328

Job	Run time
oldstable (ubuntu-20.04)	4m 57s
oldstable (self-hosted, macos, arm64)	48s
clippy (ubuntu-20.04)	6m 54s
clippy (self-hosted, macos, arm64)	50s
rustfmt	16s
test-matrix (ubuntu-20.04)	8m 59s
test-matrix (self-hosted, macos, arm64)	1m 14s
all-features (ubuntu-20.04)	8m 41s
all-features (self-hosted, macos, arm64)	1m 20s
shellcheck	4s
deno-checks	10s
test	1s
	34m 14s

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