virtualizationmanager: Run rustfmt on crosvm.rs

Trying to repo-upload a change to the file fails with:

    [FAILED] rustfmt hook
      FILES: virtualizationmanager/src/crosvm.rs
        Files not formatted
    [FIXUP] rustfmt has automated fixups available

So let rustfmt do its thing before pushing any other changes.

Test: N/A
Change-Id: I3f1ed91e75a2345816dc6d5e07945cc80234fefb
diff --git a/virtualizationmanager/src/crosvm.rs b/virtualizationmanager/src/crosvm.rs
index 77dd76f..68e6a1a 100644
--- a/virtualizationmanager/src/crosvm.rs
+++ b/virtualizationmanager/src/crosvm.rs
@@ -171,7 +171,8 @@
 pub struct VmMetric {
     /// Recorded timestamp when the VM is started.
     pub start_timestamp: Option<SystemTime>,
-    /// Update most recent guest_time periodically from /proc/[crosvm pid]/stat while VM is running.
+    /// Update most recent guest_time periodically from /proc/[crosvm pid]/stat while VM is
+    /// running.
     pub cpu_guest_time: Option<i64>,
     /// Update maximum RSS values periodically from /proc/[crosvm pid]/smaps while VM is running.
     pub rss: Option<Rss>,