edition: Use 2018-style paths in devices crate

These are import paths in new code added since CL:1513054 that need to
be made compatible with 2018 edition's treatment of paths.

TEST=cargo check
TEST=cargo check --all-features
TEST=cargo check --target aarch64-unknown-linux-gnu

Change-Id: Icb3ecf2fb2015332e0c03cdc22bff2ecab2c40df
Reviewed-on: https://chromium-review.googlesource.com/1559264
Commit-Ready: ChromeOS CL Exonerator Bot <chromiumos-cl-exonerator@appspot.gserviceaccount.com>
Tested-by: David Tolnay <dtolnay@chromium.org>
Tested-by: kokoro <noreply+kokoro@google.com>
Reviewed-by: David Tolnay <dtolnay@chromium.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/devices/src/virtio/virtio_pci_device.rs b/devices/src/virtio/virtio_pci_device.rs
index 27ab5fb..7c5b0d8 100644
--- a/devices/src/virtio/virtio_pci_device.rs
+++ b/devices/src/virtio/virtio_pci_device.rs
@@ -354,7 +354,7 @@ impl PciDevice for VirtioPciDevice {
         resources: &mut SystemAllocator,
     ) -> std::result::Result<Vec<(u64, u64)>, PciDeviceError> {
         let mut ranges = Vec::new();
-        for mut config in self.device.get_device_bars() {
+        for config in self.device.get_device_bars() {
             let device_addr = resources
                 .allocate_device_addresses(config.get_size())
                 .ok_or(PciDeviceError::IoAllocationFailed(config.get_size()))?;