diff --git a/.appveyor.yml b/.appveyor.yml
index 8c5b6889c..c8ea114a4 100644
--- a/.appveyor.yml
+++ b/.appveyor.yml
@@ -12,7 +12,7 @@ platform:
 environment:
   matrix:
     - TOOLCHAIN_VERSION: 14.0
-      RUST: 1.64.0
+      RUST: 1.76.0
     - TOOLCHAIN_VERSION: 14.0
       RUST: beta
     - TOOLCHAIN_VERSION: 14.0
diff --git a/src/helpers.rs b/src/helpers.rs
index 38f2d273b..07b972440 100644
--- a/src/helpers.rs
+++ b/src/helpers.rs
@@ -19,7 +19,6 @@
 extern crate libc;
 
 use std::u64;
-use time;
 
 // Helpers associated to kernel helpers
 // See also linux/include/uapi/linux/bpf.h in Linux kernel sources.
diff --git a/src/jit.rs b/src/jit.rs
index 4c07f86bd..a472b77f0 100644
--- a/src/jit.rs
+++ b/src/jit.rs
@@ -5,7 +5,6 @@
 // Copyright 2016 6WIND S.A. <quentin.monnet@6wind.com>
 //      (Translation to Rust, MetaBuff addition)
 
-use std;
 use std::mem;
 use std::collections::HashMap;
 use std::fmt::Formatter;