Again, I've seen this issue several times with OCaml packages, but I
didn't bother to investigate. It looks like another toolchain issue,
which should be fixed in a more central package, not in bisect-ppx
itself. So just leave the lintian warnings as is.
It seems the issue should be fixed on lintian side as your analyst.
But unfortunately, this is one lintian error that will lead to
ftp-master auto-rejected if uploaded:
```
E: libbisect-ppx-ocaml-dbgsym: stripped-library
[usr/lib/debug/.dwz/x86_64-linux-gnu/libbisect-ppx-ocaml.debug]
E: libbisect-ppx-ocaml-dev-dbgsym: stripped-library
[usr/lib/debug/.dwz/x86_64-linux-gnu/libbisect-ppx-ocaml-dev.debug]
```
I tried many attempts but failed. One common workaround is shipping
one lintian-override via dh_lintian, like[0] and [1]. Although the
error was gone, but we will get another error:
```
libbisect-ppx-ocaml-dev-dbgsym: non-debug-file-in-debug-package
[usr/share/lintian/overrides/libbisect-ppx-ocaml-dev-dbgsym]
```
Passing `--no-dwz-multifile` to dh_dwz maybe has side effects on the
debug package but it seems this is a workaround if we can upload to
upstable.And