FTBFS in multiple Ubuntu series

[Lucas Kanashiro]

Focal
=====

cadvisor/0.27.1+dfsg2-4 currently FTBFS in Focal. A build dependency seems to be missing:

src/github.com/google/cadvisor/container/common/inotify_watcher.go:20:2: cannot find package "golang.org/x/exp/inotify" in any of:
        /<<PKGBUILDDIR>>/_build/src/github.com/google/cadvisor/vendor/golang.org/x/exp/inotify (vendor tree)
        /usr/lib/go-1.13/src/golang.org/x/exp/inotify (from $GOROOT)
        /<<PKGBUILDDIR>>/_build/src/golang.org/x/exp/inotify (from $GOPATH)

Bionic
======

cadvisor/0.27.1+dfsg-1 currently FTBFS in Bionic. The following error is reported during build time:

github.com/google/cadvisor/fs
# github.com/google/cadvisor/fs
src/github.com/google/cadvisor/fs/fs.go:109:32: not enough arguments in call to mount.GetMounts
 have ()
 want (mount.FilterFunc)