Package: cupt
Version: 2.3.2

Hi,

Today for some insane reason (let's forget about that) I installed
git-core from lenny to run some experiments.  All went well, so time to
upgrade back to a sane version again:

| # cupt --no-auto-remove install git/squeeze git-core/squeeze
| [...]
| The following packages will be installed:
|
| git 
|
| The following packages will be upgraded:
|
| git-core 
|
| Action summary:
|   1 manually installed and 0 automatically installed packages will be 
installed
|   1 manually installed and 0 automatically installed packages will be upgraded
|
| Need to get 1316B/4747KiB of archives. After unpacking 3444KiB will be used.
| Do you want to continue? [y/N/q/a/?] y
| Performing requested actions:
| E: internal error: unable to schedule circular actions 'unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack 
git-core 1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3'
| E: unable to do requested actions
| E: error performing command 'install'

Relevant dependencies:

        git/squeeze: Conflicts: git-core/lenny, Replaces: git-core/lenny
        git-core/squeeze: Depends: git (>= squeeze)
        various: Depends: git (>= squeeze) | git-core

Expected upgrade path:

        unpack git-core/squeeze
        unpack git/squeeze
        configure git/squeeze
        configure git-core/squeeze

Reproducible with cupt from the "next" branch, too.  Output from

        cupt --simulate --no-auto-remove -o debug::worker=1 \
                install git/squeeze git-core/squeeze

attached.  I would have expected cupt to _never_ produce an internal
error unless the hardware's bad --- if the packages are bad, an
appropriate error message would blame them instead of blaming
cupt. ;-)  Hints?

Happy new year,
Jonathan
Building the package cache... 
Initializing package resolver and worker... 
D: obtaining lock '//var/lib/cupt/lock'
Scheduling requested actions... 
Resolving possible unmet dependencies... 

The following packages will be installed:

git 

The following packages will be upgraded:

git-core 

Action summary:
  1 manually installed and 0 automatically installed packages will be installed
  1 manually installed and 0 automatically installed packages will be upgraded

Need to get 1316B/4747KiB of archives. After unpacking 3444KiB will be used.
Do you want to continue? [y/N/q/a/?] Performing requested actions:
D: detected pseudo-essential package 'gawk'
D: detected pseudo-essential package 'mawk'
D: detected pseudo-essential package 'dash'
D: detected pseudo-essential package 'libc6'
D: detected pseudo-essential package 'libtinfo5'
D: detected pseudo-essential package 'libacl1'
D: detected pseudo-essential package 'libattr1'
D: detected pseudo-essential package 'libselinux1'
D: detected pseudo-essential package 'libbz2-1.0'
D: detected pseudo-essential package 'zlib1g'
D: detected pseudo-essential package 'coreutils'
D: detected pseudo-essential package 'xz-utils'
D: detected pseudo-essential package 'e2fslibs'
D: detected pseudo-essential package 'libblkid1'
D: detected pseudo-essential package 'libcomerr2'
D: detected pseudo-essential package 'libss2'
D: detected pseudo-essential package 'libuuid1'
D: detected pseudo-essential package 'util-linux'
D: detected pseudo-essential package 'libpam0g'
D: detected pseudo-essential package 'libpam-runtime'
D: detected pseudo-essential package 'libpam-modules'
D: detected pseudo-essential package 'libmount1'
D: detected pseudo-essential package 'libsepol1'
D: detected pseudo-essential package 'dpkg'
D: detected pseudo-essential package 'initscripts'
D: detected pseudo-essential package 'sysv-rc'
D: detected pseudo-essential package 'sysvinit-utils'
D: detected pseudo-essential package 'libncurses5'
D: detected pseudo-essential package 'libslang2'
D: detected pseudo-essential package 'libsigsegv2'
D: detected pseudo-essential package 'debianutils'
D: detected pseudo-essential package 'libc-bin'
D: detected pseudo-essential package 'libgcc1'
D: detected pseudo-essential package 'multiarch-support'
D: detected pseudo-essential package 'install-info'
D: detected pseudo-essential package 'liblzma5'
D: detected pseudo-essential package 'passwd'
D: detected pseudo-essential package 'lsb-base'
D: detected pseudo-essential package 'tzdata'
D: detected pseudo-essential package 'debconf'
D: detected pseudo-essential package 'libdb5.1'
D: detected pseudo-essential package 'libpam-modules-bin'
D: detected pseudo-essential package 'mount'
D: detected pseudo-essential package 'insserv'
D: detected pseudo-essential package 'sensible-utils'
D: detected pseudo-essential package 'gcc-4.7-base'
D: detected pseudo-essential package 'sed'
D: detected pseudo-essential package 'ncurses-bin'
D: detected pseudo-essential package 'perl-base'
D: new action dependency: '(fake)remove git-buildpackage 0.6.0~git20111229' -> 
'remove git-core 1:1.5.6.5-3+lenny3.3', reason: 'depends: git (>= 1:1.7.0.4-2) 
| git-core (>= 1:1.5.0.1-1)'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove libc6 2.13-24', reason: 'depends: libc6 (>= 2.7-1)'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove libcurl3-gnutls 7.23.1-3', reason: 'depends: libcurl3-gnutls (>= 
7.16.2-1)'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove libexpat1 2.0.1-7.2', reason: 'depends: libexpat1 (>= 1.95.8)'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove zlib1g 1:1.2.5.dfsg-1', reason: 'depends: zlib1g (>= 1:1.2.0)'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove perl-modules 5.14.2-6', reason: 'depends: perl-modules'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove liberror-perl 0.17-1', reason: 'depends: liberror-perl'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'(fake)remove libdigest-sha1-perl 2.13-1', reason: 'depends: 
libdigest-sha1-perl'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git 
1:1.7.2.5-3', reason: 'conflicts: git-completion'
D: new action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git 
1:1.7.2.5-3', reason: 'conflicts: git-core (<= 1:1.7.0.4-1)'
D: new action dependency: '(fake)configure libc6 2.13-24' -> 'configure git 
1:1.7.2.5-3', reason: 'depends: libc6 (>= 2.3.6-6~)'
D: new action dependency: '(fake)configure libcurl3-gnutls 7.23.1-3' -> 
'configure git 1:1.7.2.5-3', reason: 'depends: libcurl3-gnutls (>= 7.16.2-1)'
D: new action dependency: '(fake)configure libexpat1 2.0.1-7.2' -> 'configure 
git 1:1.7.2.5-3', reason: 'depends: libexpat1 (>= 1.95.8)'
D: new action dependency: '(fake)configure zlib1g 1:1.2.5.dfsg-1' -> 'configure 
git 1:1.7.2.5-3', reason: 'depends: zlib1g (>= 1:1.2.0)'
D: new action dependency: '(fake)configure perl-modules 5.14.2-6' -> 'configure 
git 1:1.7.2.5-3', reason: 'depends: perl-modules'
D: new action dependency: '(fake)configure liberror-perl 0.17-1' -> 'configure 
git 1:1.7.2.5-3', reason: 'depends: liberror-perl'
D: new action dependency: 'configure git 1:1.7.2.5-3' -> '(fake)configure 
git-buildpackage 0.6.0~git20111229', reason: 'depends: git (>= 1:1.7.0.4-2) | 
git-core (>= 1:1.5.0.1-1)'
D: new action dependency: 'configure git-core 1:1.7.2.5-3' -> '(fake)configure 
git-buildpackage 0.6.0~git20111229', reason: 'depends: git (>= 1:1.7.0.4-2) | 
git-core (>= 1:1.5.0.1-1)'
D: new action dependency: 'configure git 1:1.7.2.5-3' -> 'configure git-core 
1:1.7.2.5-3', reason: 'depends: git (>> 1:1.7.0.2)'
D: moving edge 'configure git 1:1.7.2.5-3' -> '(fake)configure git-buildpackage 
0.6.0~git20111229' to edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: moving edge '(fake)remove git-buildpackage 0.6.0~git20111229' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3' to edge 'configure git 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3'
D: multiplied action dependency: 'configure git 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3', virtual mediator: 'git-buildpackage'
D: building action graph: next iteration
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: new link: 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: new link: 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: new link: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: building action graph: next iteration
D: moving edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3' to edge 'configure git-core 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3'
D: deleting the edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: building action graph: finished
D: the present action dependency: 'configure git-core 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3', from-virtual
D: the present action dependency: 'unpack git-core 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3', priority
D: the present action dependency: 'configure git 1:1.7.2.5-3' -> 'unpack git 
1:1.7.2.5-3', priority
D: the present action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'unpack git 1:1.7.2.5-3', hard
D: the present action dependency: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 
'unpack git-core 1:1.7.2.5-3', fundamental
D: the present action dependency: 'configure git-core 1:1.7.2.5-3' -> 'unpack 
git-core 1:1.7.2.5-3', priority
D: the present action dependency: 'unpack git 1:1.7.2.5-3' -> 'configure git 
1:1.7.2.5-3', fundamental
D: the present action dependency: 'unpack git-core 1:1.7.2.5-3' -> 'configure 
git-core 1:1.7.2.5-3', fundamental
D: the present action dependency: 'configure git 1:1.7.2.5-3' -> 'configure 
git-core 1:1.7.2.5-3', hard
D: splitting heterogeneous actions, level from-virtual
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git 
1:1.7.2.5-3'
D: adding edge 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: adding edge 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'unpack git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: ignoring edge 'configure git 1:1.7.2.5-3' -> 'unpack git 1:1.7.2.5-3'
D: adding edge 'configure git 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: adding edge 'configure git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D:   transferring hidden edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'unpack git-core 
1:1.7.2.5-3'
D: building mini action graph: next iteration
D: adjusting the pair 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3':
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: new link: 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: new link: 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: new link: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: building mini action graph: next iteration
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3, unpack git 
1:1.7.2.5-3, configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, remove 
git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: building mini action graph: finished
D: splitting heterogeneous actions, level soft
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git 
1:1.7.2.5-3'
D: adding edge 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: adding edge 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'unpack git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: adding edge 'configure git 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'configure git 1:1.7.2.5-3' -> 'unpack git 1:1.7.2.5-3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D:   restoring edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'unpack git-core 
1:1.7.2.5-3'
D: building mini action graph: next iteration
D: adjusting the pair 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3':
D: adjusting the pair 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'configure 
git-core 1:1.7.2.5-3':
D: toposort: opened action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3' (priority: -2)
D: toposort: selected action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3' (priority: -2)
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3' (priority: 4)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3' (priority: 4)
D: toposort: opened action group: 'configure git-core 1:1.7.2.5-3' (priority: 3)
D: toposort: selected action group: 'configure git-core 1:1.7.2.5-3' (priority: 
3)
D: new link: 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: new link: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: new link: 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: building mini action graph: next iteration
D: moving edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3' to edge 'configure git-core 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3'
D: deleting the edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: toposort: opened action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 1:1.7.2.5-3, 
remove git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 1:1.7.2.5-3, 
remove git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: building mini action graph: finished
D: splitting heterogeneous actions, level medium
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git 
1:1.7.2.5-3'
D: adding edge 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: adding edge 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'unpack git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: adding edge 'configure git 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'configure git 1:1.7.2.5-3' -> 'unpack git 1:1.7.2.5-3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'unpack git-core 
1:1.7.2.5-3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D:   restoring edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: building mini action graph: next iteration
D: adjusting the pair 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3':
D: adjusting the pair 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'configure 
git-core 1:1.7.2.5-3':
D: toposort: opened action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3' (priority: -2)
D: toposort: selected action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3' (priority: -2)
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3' (priority: 4)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3' (priority: 4)
D: toposort: opened action group: 'configure git-core 1:1.7.2.5-3' (priority: 3)
D: toposort: selected action group: 'configure git-core 1:1.7.2.5-3' (priority: 
3)
D: new link: 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: new link: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: new link: 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: building mini action graph: next iteration
D: moving edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3' to edge 'configure git-core 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3'
D: deleting the edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: toposort: opened action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 1:1.7.2.5-3, 
remove git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 1:1.7.2.5-3, 
remove git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: building mini action graph: finished
D: splitting heterogeneous actions, level hard
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: adding edge 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git 
1:1.7.2.5-3'
D: adding edge 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: adding edge 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'unpack git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: adding edge 'configure git 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: ignoring edge 'configure git 1:1.7.2.5-3' -> 'unpack git 1:1.7.2.5-3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'unpack git-core 
1:1.7.2.5-3'
D: ignoring edge 'configure git-core 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D:   restoring edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: building mini action graph: next iteration
D: adjusting the pair 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3':
D: adjusting the pair 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'configure 
git-core 1:1.7.2.5-3':
D: toposort: opened action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3' (priority: -2)
D: toposort: selected action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3' (priority: -2)
D: toposort: opened action group: 'unpack git-core 1:1.7.2.5-3' (priority: 4)
D: toposort: selected action group: 'unpack git-core 1:1.7.2.5-3' (priority: 4)
D: toposort: opened action group: 'configure git-core 1:1.7.2.5-3' (priority: 3)
D: toposort: selected action group: 'configure git-core 1:1.7.2.5-3' (priority: 
3)
D: new link: 'unpack git 1:1.7.2.5-3' -> 'configure git 1:1.7.2.5-3'
D: new link: 'remove git-core 1:1.5.6.5-3+lenny3.3' -> 'unpack git-core 
1:1.7.2.5-3'
D: new link: 'unpack git-core 1:1.7.2.5-3' -> 'configure git-core 1:1.7.2.5-3'
D: building mini action graph: next iteration
D: moving edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3' to edge 'configure git-core 1:1.7.2.5-3' -> 'remove 
git-core 1:1.5.6.5-3+lenny3.3'
D: deleting the edge 'configure git 1:1.7.2.5-3' -> 'remove git-core 
1:1.5.6.5-3+lenny3.3'
D: toposort: opened action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 1:1.7.2.5-3, 
remove git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: toposort: selected action group: 'unpack git 1:1.7.2.5-3, configure git 
1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 1:1.7.2.5-3, 
remove git-core 1:1.5.6.5-3+lenny3.3' (priority: 1)
D: building mini action graph: finished
D: splitting heterogeneous actions, level fundamental
E: internal error: unable to schedule circular actions 'unpack git 1:1.7.2.5-3, 
configure git 1:1.7.2.5-3, configure git-core 1:1.7.2.5-3, unpack git-core 
1:1.7.2.5-3, remove git-core 1:1.5.6.5-3+lenny3.3'
E: unable to do requested actions
D: releasing lock '//var/lib/cupt/lock'
E: error performing command 'install'

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