[inspector] If there are missing Perl module deps, it still
configures the inspector. (eg. if perl-Sys-Virt is missing).
+
+[build] "exec: chroot not found"
+Setting PATH to include /usr/sbin solves this temporarily.
+
+[libguestfs] FileOut parameters can cause
+"internal error: reply callback called twice"
+This bug is rare but well-understood. Unfortunately it's also
+quite hard to fix cleanly.
+
+[libguestfs] write-file does not support strings containing ASCII NUL.