Add debug print for inode number in mknod (#1111)

## Description of change

`mknod` now prints the newly created inode number. This can help with
tracing the lifetime of an inode between FUSE requests.

## Does this change impact existing behavior?

No, small debug log addition only.

## Does this change need a changelog entry in any of the crates?

No.

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---

By submitting this pull request, I confirm that my contribution is made
under the terms of the Apache 2.0 license and I agree to the terms of
the [Developer Certificate of Origin
(DCO)](https://developercertificate.org/).

---------

Signed-off-by: Christian Hagemeier <>
Signed-off-by: Christian Hagemeier <[email protected]>
Co-authored-by: Christian Hagemeier <>
Co-authored-by: Christian Hagemeier <[email protected]>

mountpoint-s3/src/fs.rs

@@ -406,6 +406,7 @@ where
             .superblock
             .create(&self.client, parent, name, InodeKind::File)
             .await?;
+        debug!(ino = lookup.inode.ino(), "new inode created");
         let attr = self.make_attr(&lookup);
         Ok(Entry {
             ttl: lookup.validity(),