From efb98108fcd23b655fbb7a329d91d35f0c65d1e4 Mon Sep 17 00:00:00 2001
From: Tim Zhang <tim@hyper.sh>
Date: Thu, 29 Oct 2020 19:31:27 +0800
Subject: [PATCH] Fix warnings

Got:
cargo build --target x86_64-unknown-linux-musl
   Compiling cgroups v0.1.1-alpha.0 (/home/tim/project/cgroups-rs)
warning: unused import: `nix::sys::statfs`
   --> src/hierarchies.rs:220:5
    |
220 | use nix::sys::statfs;
    |     ^^^^^^^^^^^^^^^^
    |
    = note: `#[warn(unused_imports)]` on by default

warning: 1 warning emitted

Signed-off-by: Tim Zhang <tim@hyper.sh>
---
 src/hierarchies.rs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/src/hierarchies.rs b/src/hierarchies.rs
index b47451d..e498f70 100644
--- a/src/hierarchies.rs
+++ b/src/hierarchies.rs
@@ -8,7 +8,6 @@
 //!
 //! Currently, we only support the cgroupv1 hierarchy, but in the future we will add support for
 //! the Unified Hierarchy.
-use nix::sys::statfs;
 
 use std::fs::{self, File};
 use std::io::BufRead;
@@ -220,6 +219,8 @@ pub const UNIFIED_MOUNTPOINT: &'static str = "/sys/fs/cgroup";
 
 #[cfg(all(target_os = "linux", not(target_env = "musl")))]
 pub fn is_cgroup2_unified_mode() -> bool {
+    use nix::sys::statfs;
+
     let path = Path::new(UNIFIED_MOUNTPOINT);
     let fs_stat = statfs::statfs(path);
     if fs_stat.is_err() {