Update croaring to 0.6.0

Author: saulius

croaring-sys/CRoaring

@@ -19,7 +19,7 @@ impl Bitmap {
         // the version of croaring.
         const _: () = assert!(
             ffi::ROARING_VERSION_MAJOR == 0
-                && ffi::ROARING_VERSION_MINOR == 5
+                && ffi::ROARING_VERSION_MINOR == 6
                 && ffi::ROARING_VERSION_REVISION == 0
         );
         ffi::roaring_free(p as *mut _);

croaring/src/bitmap/imp.rs

@@ -67,7 +67,7 @@ impl Drop for Bitmap {
         // Ensure this is still valid every time we update the version of croaring.
         const _: () = assert!(
             ffi::ROARING_VERSION_MAJOR == 0
-                && ffi::ROARING_VERSION_MINOR == 5
+                && ffi::ROARING_VERSION_MINOR == 6
                 && ffi::ROARING_VERSION_REVISION == 0
         );