diff --git a/rust/rust.go b/rust/rust.go
index 9738b46..78a793d 100644
--- a/rust/rust.go
+++ b/rust/rust.go
@@ -58,6 +58,7 @@
 	RustFlags       []string // Flags that apply to rust
 	LinkFlags       []string // Flags that apply to linker
 	ClippyFlags     []string // Flags that apply to clippy-driver, during the linting
+	RustdocFlags    []string // Flags that apply to rustdoc
 	Toolchain       config.Toolchain
 	Coverage        bool
 	Clippy          bool
@@ -124,6 +125,7 @@
 	// as a library. The stripped output which is used for installation can be found via
 	// compiler.strippedOutputFile if it exists.
 	unstrippedOutputFile android.OptionalPath
+	docTimestampFile     android.OptionalPath
 
 	hideApexVariantFromMake bool
 }
@@ -355,10 +357,12 @@
 	compile(ctx ModuleContext, flags Flags, deps PathDeps) android.Path
 	compilerDeps(ctx DepsContext, deps Deps) Deps
 	crateName() string
+	rustdoc(ctx ModuleContext, flags Flags, deps PathDeps) android.OptionalPath
 
 	// Output directory in which source-generated code from dependencies is
 	// copied. This is equivalent to Cargo's OUT_DIR variable.
 	CargoOutDir() android.OptionalPath
+
 	inData() bool
 	install(ctx ModuleContext)
 	relativeInstallPath() string
@@ -755,6 +759,8 @@
 		mod.unstrippedOutputFile = android.OptionalPathForPath(unstrippedOutputFile)
 		bloaty.MeasureSizeForPaths(ctx, mod.compiler.strippedOutputFilePath(), mod.unstrippedOutputFile)
 
+		mod.docTimestampFile = mod.compiler.rustdoc(ctx, flags, deps)
+
 		apexInfo := actx.Provider(android.ApexInfoProvider).(android.ApexInfo)
 		if mod.installable(apexInfo) {
 			mod.compiler.install(ctx)