Update for Cranelift API changes.

fuzz/fuzz_targets/compile.rs

@@ -4,19 +4,20 @@
 extern crate libfuzzer_sys;
 extern crate cranelift_codegen;
 extern crate cranelift_native;
+extern crate wasmparser;
 extern crate wasmtime_environ;
 extern crate wasmtime_execute;
-extern crate wasmparser;
 
 use cranelift_codegen::settings;
-use wasmtime_environ::{ModuleEnvironment, Module};
-use wasmparser::{validate};
+use wasmparser::validate;
+use wasmtime_environ::{Module, ModuleEnvironment};
 
 fuzz_target!(|data: &[u8]| {
     if !validate(data, None) {
         return;
     }
-    let (flag_builder, isa_builder) = cranelift_native::builders().unwrap_or_else(|_| {
+    let flag_builder = settings::builder();
+    let isa_builder = cranelift_native::builder().unwrap_or_else(|_| {
         panic!("host machine is not a supported target");
     });
     let isa = isa_builder.finish(settings::Flags::new(flag_builder));
@@ -26,8 +27,10 @@ fuzz_target!(|data: &[u8]| {
         Ok(translation) => translation,
         Err(_) => return,
     };
-    let _exec = match wasmtime_execute::compile_and_link_module(&*isa, &translation) {
-        Ok(x) => x,
-        Err(_) => return,
-    };
+    let imports_resolver = |_env: &str, _function: &str| None;
+    let _exec =
+        match wasmtime_execute::compile_and_link_module(&*isa, &translation, imports_resolver) {
+            Ok(x) => x,
+            Err(_) => return,
+        };
 });