.cargo: Check all features in custom-clippy (#2771)

Author: elenaf9

.cargo/config.toml

@@ -1,3 +1,3 @@
 [alias]
 # Temporary solution to have clippy config in a single place until https://github.com/rust-lang/rust-clippy/blob/master/doc/roadmap-2021.md#lintstoml-configuration is shipped.
-custom-clippy = "clippy -- -A clippy::type_complexity -A clippy::pedantic -D warnings"
+custom-clippy = "clippy --all-features -- -A clippy::type_complexity -A clippy::pedantic -D warnings"