[Bug 2110910] Re: rust-coreutils: missing -Z flags

[Skia]

postfix seems also affected, even though I'm not sure we're tracking all
the packages that hit the situation. Reporting that anyway, feel free to
forward that information wherever it's needed most.

```
Préparation du dépaquetage de .../11-postfix_3.10.2-1ubuntu1_amd64.deb ...
error: unexpected argument '-Z' found

  tip: to pass '-Z' as a value, use '-- -Z'

Usage: mkdir [OPTION]... DIRECTORY...

For more information, try '--help'.
dpkg: erreur de traitement de l'archive /tmp/apt-dpkg-install-egQeDf/11-postfix_3.10.2-1ubuntu1_amd64.deb (--unpack) :
 le sous-processus nouveau postfix paquet pre-installation script a renvoyé un état de sortie d'erreur 1
```

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https://bugs.launchpad.net/bugs/2110910

Title:
  rust-coreutils: missing -Z flags

Status in rust-coreutils package in Ubuntu:
  Triaged

Bug description:
  When using rust-coreutils, `update-initramfs` doesn't work. I get the
  error:

  ubuntu at ubuntu2510:~$ sudo update-initramfs -k 6.14.0-15-generic -c
  update-initramfs: Generating /boot/initrd.img-6.14.0-15-generic
  error: unexpected argument '-Z' found

    tip: to pass '-Z' as a value, use '-- -Z'

  Usage: cp [OPTION]... [-T] SOURCE DEST
         cp [OPTION]... SOURCE... DIRECTORY
         cp [OPTION]... -t DIRECTORY SOURCE...

  For more information, try '--help'.
  E: /usr/share/initramfs-tools/hooks/kmod failed with return 1.
  update-initramfs: failed for /boot/initrd.img-6.14.0-15-generic with 1.

  If I change to gnu-coreutils, it works as should.

  ProblemType: Bug
  DistroRelease: Ubuntu 25.10
  Package: rust-coreutils 0.0.30-2
  ProcVersionSignature: User Name 6.14.0-15.15-generic 6.14.0
  Uname: Linux 6.14.0-15-generic x86_64
  ApportVersion: 2.32.0-0ubuntu5
  Architecture: amd64
  CasperMD5CheckResult: unknown
  CloudArchitecture: x86_64
  CloudBuildName: server
  CloudID: multipass
  CloudName: multipass
  CloudPlatform: nocloud
  CloudSerial: 20250505
  CloudSubPlatform: config-disk (/dev/sr0)
  Date: Thu May 15 12:03:07 2025
  ProcEnviron:
   LANG=C.UTF-8
   PATH=(custom, no user)
   SHELL=/bin/bash
   TERM=xterm-256color
   XDG_RUNTIME_DIR=<set>
  RebootRequiredPkgs: Error: path contained symlinks.
  SourcePackage: rust-coreutils
  UpgradeStatus: No upgrade log present (probably fresh install)

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