three failing env tests:
# Failed test (t/pmc/env.t at line 92)
# got: 'not ok
# '
# expected: 'ok
# '
# Failed test (t/pmc/env.t at line 162)
# got: '0
# '
# expected: '3
# '
# Failed test (t/pmc/env.t at line 185)
# got: '0.000000
# '
# expected: '3.000000
# '
# Looks like you failed 3 tests of 12.
~jerry