edition: Fill in macro imports

Macros were previously imported through `#[macro_use] extern crate`,
which is basically a glob import of all macros from the crate. As of
2018 edition of Rust, `extern crate` is no longer required and macros
are imported individually like any other item from a dependency. This CL
fills in all the appropriate macro imports that will allow us to remove
our use of `extern crate` in a subsequent CL.

TEST=cargo check --all-features --tests
TEST=kokoro

Change-Id: If2ec08b06b743abf5f62677c6a9927c3d5d90a54
Reviewed-on: https://chromium-review.googlesource.com/1565546
Commit-Ready: David Tolnay <dtolnay@chromium.org>
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, 4 insertions, 4 deletions

diff --git a/src/linux.rs b/src/linux.rs
index 78e5740..730de9c 100644
--- a/src/linux.rs
+++ b/src/linux.rs
@@ -37,10 +37,10 @@ use remain::sorted;
 use sync::{Condvar, Mutex};
 use sys_util::net::{UnixSeqpacket, UnixSeqpacketListener, UnlinkUnixSeqpacketListener};
 use sys_util::{
-    self, block_signal, clear_signal, drop_capabilities, flock, get_blocked_signals, get_group_id,
-    get_user_id, getegid, geteuid, register_signal_handler, set_cpu_affinity, validate_raw_fd,
-    EventFd, FlockOperation, GuestMemory, Killable, PollContext, PollToken, SignalFd, Terminal,
-    TimerFd, SIGRTMIN,
+    self, block_signal, clear_signal, drop_capabilities, error, flock, get_blocked_signals,
+    get_group_id, get_user_id, getegid, geteuid, info, register_signal_handler, set_cpu_affinity,
+    validate_raw_fd, warn, EventFd, FlockOperation, GuestMemory, Killable, PollContext, PollToken,
+    SignalFd, Terminal, TimerFd, SIGRTMIN,
 };
 #[cfg(feature = "gpu-forward")]
 use sys_util::{GuestAddress, MemoryMapping, Protection};