Pass 1:

Running [zsh-5.0.7]:                     string_test      51764.74
Running [zsh-5.0.8]:                     string_test      51473.90
Running [zsh-5.1]:                       string_test      52185.28
Running [zsh-36926]:                     string_test      38504.65

Running [zsh-5.0.7]:                     array_test        6893.61
Running [zsh-5.0.8]:                     array_test        6783.31
Running [zsh-5.1]:                       array_test        7013.65
Running [zsh-36926]:                     array_test        6214.61

Running [zsh-5.0.7]:                     function_test    21903.79
Running [zsh-5.0.8]:                     function_test    23027.64
Running [zsh-5.1]:                       function_test    22488.52
Running [zsh-36926]:                     function_test    30285.55

Running [zsh-5.0.7]:                     search_test       8359.19
Running [zsh-5.0.8]:                     search_test       8626.48
Running [zsh-5.1]:                       search_test       8176.59
Running [zsh-36926]:                     search_test       4394.92

Pass 2 (added build of git head as "zsh"):

Running [zsh-5.0.7]:                     string_test      41757.54
Running [zsh-5.0.8]:                     string_test      41443.93
Running [zsh-5.1]:                       string_test      41697.08
Running [zsh]:                           string_test      23052.51
Running [zsh-36926]:                     string_test      26685.68

Running [zsh-5.0.7]:                     array_test        6956.99
Running [zsh-5.0.8]:                     array_test        6791.33
Running [zsh-5.1]:                       array_test        6996.48
Running [zsh]:                           array_test        6273.76
Running [zsh-36926]:                     array_test        6326.08

Running [zsh-5.0.7]:                     function_test    21892.22
Running [zsh-5.0.8]:                     function_test    22012.86
Running [zsh-5.1]:                       function_test    22046.14
Running [zsh]:                           function_test    29858.53
Running [zsh-36926]:                     function_test    28719.64

Running [zsh-5.0.7]:                     search_test       8254.72
Running [zsh-5.0.8]:                     search_test       8508.30
Running [zsh-5.1]:                       search_test       8599.57
Running [zsh]:                           search_test       4402.41
Running [zsh-36926]:                     search_test       4244.59