Comment 1 for bug 1881504

Maybe APT should not consider crossgrading a package as a removal and APT should be fixed instead of autopkgtest:

root@gg-libyaml:~# apt install gzip:i386
Reading package lists... Done
Building dependency tree
Reading state information... Done
The following additional packages will be installed:
  gcc-10-base gcc-10-base:i386 libatomic1 libc6:i386 libcc1-0 libcrypt-dev libcrypt1 libcrypt1:i386 libgcc-s1 libgcc-s1:i386 libgomp1 libidn2-0:i386 libitm1 liblsan0
  libquadmath0 libstdc++6 libtsan0 libubsan1 libunistring2 libunistring2:i386
Suggested packages:
  glibc-doc:i386 locales:i386
The following packages will be REMOVED:
  gzip
The following NEW packages will be installed:
  gcc-10-base:i386 gzip:i386 libc6:i386 libcrypt1:i386 libgcc-s1:i386 libidn2-0:i386 libunistring2:i386
The following packages will be upgraded:
  gcc-10-base libatomic1 libcc1-0 libcrypt-dev libcrypt1 libgcc-s1 libgomp1 libitm1 liblsan0 libquadmath0 libstdc++6 libtsan0 libubsan1 libunistring2
WARNING: The following essential packages will be removed.
This should NOT be done unless you know exactly what you are doing!
  gzip
14 upgraded, 7 newly installed, 1 to remove and 121 not upgraded.
Need to get 5303 kB of archives.
After this operation, 15.2 MB of additional disk space will be used.
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