Can't leave comment on the actual line, because browser starts hanging, but: you probably still need to add nightly rustup before running cargo +nightly doc? Alternatively, just build docs with stable for now (without including external doc) and add nightly in a separate PR after this works.
error: Found argument '--features' which wasn't expected, or isn't valid in this context
Did you mean to put '--features' after the subcommand 'bench'?
Can't leave comment on the actual line, because browser starts hanging, but: you probably still need to add nightly rustup before running
cargo +nightly doc
? Alternatively, just build docs with stable for now (without including external doc) and add nightly in a separate PR after this works.