[Bug 1881504] [NEW] cross-testing essential packages fails

[Balint Reczey]

Public bug reported:

Testing gzip on i386 fails at replacing gzip(:amd64) with gzip:i386.

https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
/autopkgtest-groovy/groovy/i386/g/gzip/20200528_195150_89f08@/log.gz

...
autopkgtest [19:51:38]: testing package gzip version 1.10-2ubuntu1
autopkgtest [19:51:38]: build not needed
autopkgtest [19:51:38]: test simple-gzip: preparing testbed
Note, using file '/tmp/autopkgtest.1PbIQv/1-autopkgtest-satdep.dsc' to get the build dependencies
Reading package lists...
Building dependency tree...
Reading state information...
Starting pkgProblemResolver with broken count: 0
Starting 2 pkgProblemResolver with broken count: 0
Done
The following packages will be REMOVED:
  gzip
The following NEW packages will be installed:
  build-essential cpp cpp-9 g++ g++-9 gcc gcc-10-base:i386 gcc-9 gcc-9-base
  gzip:i386 libasan5 libatomic1 libc-dev-bin libc6:i386 libc6-dev libcc1-0
  libcrypt-dev libcrypt1:i386 libgcc-9-dev libgcc-s1:i386 libgomp1 libisl22
  libitm1 liblsan0 libmpc3 libquadmath0 libstdc++-9-dev libtsan0 libubsan1
  linux-libc-dev
WARNING: The following essential packages will be removed.
This should NOT be done unless you know exactly what you are doing!
  gzip
0 upgraded, 30 newly installed, 1 to remove and 0 not upgraded.
E: Essential packages were removed and -y was used without --allow-remove-essential.
E: Failed to process build dependencies
...

** Affects: autopkgtest (Ubuntu)
     Importance: Undecided
         Status: New

** Affects: gzip (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: update-excuse

** Also affects: gzip (Ubuntu)
   Importance: Undecided
       Status: New

** Tags added: update-excuse

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https://bugs.launchpad.net/bugs/1881504

Title:
  cross-testing essential packages fails

Status in autopkgtest package in Ubuntu:
  New
Status in gzip package in Ubuntu:
  New

Bug description:
  Testing gzip on i386 fails at replacing gzip(:amd64) with gzip:i386.

  https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac
  /autopkgtest-groovy/groovy/i386/g/gzip/20200528_195150_89f08@/log.gz

  ...
  autopkgtest [19:51:38]: testing package gzip version 1.10-2ubuntu1
  autopkgtest [19:51:38]: build not needed
  autopkgtest [19:51:38]: test simple-gzip: preparing testbed
  Note, using file '/tmp/autopkgtest.1PbIQv/1-autopkgtest-satdep.dsc' to get the build dependencies
  Reading package lists...
  Building dependency tree...
  Reading state information...
  Starting pkgProblemResolver with broken count: 0
  Starting 2 pkgProblemResolver with broken count: 0
  Done
  The following packages will be REMOVED:
    gzip
  The following NEW packages will be installed:
    build-essential cpp cpp-9 g++ g++-9 gcc gcc-10-base:i386 gcc-9 gcc-9-base
    gzip:i386 libasan5 libatomic1 libc-dev-bin libc6:i386 libc6-dev libcc1-0
    libcrypt-dev libcrypt1:i386 libgcc-9-dev libgcc-s1:i386 libgomp1 libisl22
    libitm1 liblsan0 libmpc3 libquadmath0 libstdc++-9-dev libtsan0 libubsan1
    linux-libc-dev
  WARNING: The following essential packages will be removed.
  This should NOT be done unless you know exactly what you are doing!
    gzip
  0 upgraded, 30 newly installed, 1 to remove and 0 not upgraded.
  E: Essential packages were removed and -y was used without --allow-remove-essential.
  E: Failed to process build dependencies
  ...

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