Switch to Rust 2018 edition

1 files changed, 1 insertions, 1 deletions

diff --git a/build.rs b/build.rs
index ce7e591..946841a 100644
--- a/build.rs
+++ b/build.rs
@@ -1,4 +1,4 @@
-extern crate lalrpop;
+use lalrpop;
 
 fn main() {
     lalrpop::process_root().unwrap();