* guix/build/cargo-build-system.scm (build, install): Pass the features
to cargo.
(check): Remove indirection layer for consistency with build and
install.
* guix/build-system/cargo.scm (cargo-build): New argument; pass it into
the builder.
* gnu/packages/rust-apps.scm (ripgrep): Use the new argument instead of
a custom phase.
* gnu/packages/rust-apps.scm (fd)[arguments]: Replace
the dash in "bash-completion.d" with an underscore.
Signed-off-by: Jakub Kądziołka <kuba@kadziolka.net>