1 pulling from ../a

     2 searching for changes

     3 abort: repository is unrelated

     4 pulling from ../a

     5 searching for changes

     6 warning: repository is unrelated

     7 adding changesets

     8 adding manifests

     9 adding file changes

    10 added 1 changesets with 1 changes to 1 files (+1 heads)

    11 (run 'hg heads' to see heads, 'hg merge' to merge)

    12 changeset:   1:9a79c33a9db3

    13 tag:         tip

    14 parent:      -1:000000000000

    15 user:        a

    16 date:        Thu Jan 01 00:00:00 1970 +0000

    17 summary:     a

    18 

    19 changeset:   0:01f8062b2de5

    20 user:        b

    21 date:        Thu Jan 01 00:00:00 1970 +0000

    22 summary:     b

    23