Merge "Don't use prebuilt rust stdlibs for linux bionic"

rust/compiler.go

@@ -371,8 +371,9 @@ func (compiler *baseCompiler) compilerDeps(ctx DepsContext, deps Deps) Deps {
 
 	if !Bool(compiler.Properties.No_stdlibs) {
 		for _, stdlib := range config.Stdlibs {
-			// If we're building for the build host, use the prebuilt stdlibs
-			if ctx.Host() && !ctx.Target().HostCross {
+			// If we're building for the build host, use the prebuilt stdlibs, unless the host
+			// is linux_bionic which doesn't have prebuilts.
+			if ctx.Host() && !ctx.Target().HostCross && ctx.Target().Os != android.LinuxBionic {
 				stdlib = "prebuilt_" + stdlib
 			}
 			deps.Stdlibs = append(deps.Stdlibs, stdlib)