cross-compile-chroot.sh: bash: ./unit-tests: No such file or directory

Testing with the Nexus 7 (grouper) and phablet build 79:...

$ ./cross-compile-chroot.sh

(...build completes...)

adbd is already running as root
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ubuntu_chroot shell;
        cd /root;
        export GTEST_OUTPUT=xml:./
        ./unit-tests;
        ./integration-tests;
        ./acceptance-tests;
        exit;
        exit
root@android:/ # ubuntu_chroot shell;
root@localhost:/# cd /root;
root@localhost:~# export GTEST_OUTPUT=xml:./
root@localhost:~# ./unit-tests;
bash: ./unit-tests: No such file or directory
root@localhost:~# ./integration-tests;
bash: ./integration-tests: No such file or directory
root@localhost:~# ./acceptance-tests;
bash: ./acceptance-tests: No such file or directory