require rustls feature for client example (#1625)

.gitignore

@@ -9,6 +9,7 @@ guide/build/
 *.pid
 *.sock
 *~
+.DS_Store
 
 # These are backup files generated by rustfmt
 **/*.rs.bk

Cargo.toml

@@ -124,6 +124,10 @@ actix-files = { path = "actix-files" }
 actix-multipart = { path = "actix-multipart" }
 awc = { path = "awc" }
 
+[[example]]
+name = "client"
+required-features = ["rustls"]
+
 [[bench]]
 name = "server"
 harness = false