Rust: Take depdency renaming into account when extracting the crate graph

rust/ql/lib/rust.dbscheme

@@ -122,6 +122,7 @@ locatable_locations(
 @element =
   @extractor_step
 | @locatable
+| @named_crate
 | @unextracted
 ;
 
@@ -142,6 +143,17 @@ extractor_step_files(
 | @crate
 ;
 
+named_crates(
+  unique int id: @named_crate,
+  int crate: @crate ref
+);
+
+#keyset[id]
+named_crate_names(
+  int id: @named_crate ref,
+  string name: string ref
+);
+
 @unextracted =
   @missing
 | @unimplemented
@@ -245,10 +257,10 @@ crate_cfg_options(
 );
 
 #keyset[id, index]
-crate_dependencies(
+crate_named_dependencies(
   int id: @crate ref,
   int index: int ref,
-  int dependency: @crate ref
+  int named_dependency: @named_crate ref
 );
 
 missings(