Hi,
I just tried to upgrade all rebuilt packages.
Then tazpkg got in an infinite loop when installing "acl".
It looks like /lib/libacl.so.1.1.0 somehow got truncated, but basically all GNU tools try to load it and fail: sed, cp, ls, unlzma... This makes tazpkg completely broken.
Fortunately I could repair by hand: download (busybox wget), unpack it (busybox unlzma), and copy the faulty file (busybox cp -a).
It looks like the receipt has no explicit install rule: probably there should be one using explicitly "busybox cp" and so on.
It's not the first time I get such bugs (all due to my using of GNU tools instead of default ones, I think). Maybe you could consider modifying tazpkg in this way:
sed="busybox sed"
cp="busybox cp"
...
$sed -i ...
$cp -a ...
...
What do you think?