[wp-testers] Error on login, nihtly build

[Frank Bueltge]

I have the same error message with debug true and false.

Warning: array_keys() [function.array-keys]: The first argument should be an
array in D:\xampp\htdocs\wpbeta\wp-includes\widgets.php on line 1365

Warning: array_keys() [function.array-keys]: The first argument should be an
array in D:\xampp\htdocs\wpbeta\wp-includes\widgets.php on line 2163

Warning: Cannot modify header information - headers already sent by (output
started at D:\xampp\htdocs\wpbeta\wp-includes\widgets.php:1365) in
D:\xampp\htdocs\wpbeta\wp-login.php on line 256

Warning: Cannot modify header information - headers already sent by (output
started at D:\xampp\htdocs\wpbeta\wp-includes\widgets.php:1365) in
D:\xampp\htdocs\wpbeta\wp-login.php on line 268

Warning: Cannot modify header information - headers already sent by (output
started at D:\xampp\htdocs\wpbeta\wp-includes\widgets.php:1365) in
D:\xampp\htdocs\wpbeta\wp-includes\pluggable.php on line 635

Warning: Cannot modify header information - headers already sent by (output
started at D:\xampp\htdocs\wpbeta\wp-includes\widgets.php:1365) in
D:\xampp\htdocs\wpbeta\wp-includes\pluggable.php on line 636

Warning: Cannot modify header information - headers already sent by (output
started at D:\xampp\htdocs\wpbeta\wp-includes\widgets.php:1365) in
D:\xampp\htdocs\wpbeta\wp-includes\pluggable.php on line 637

Warning: Cannot modify header information - headers already sent by (output
started at D:\xampp\htdocs\wpbeta\wp-includes\widgets.php:1365) in
D:\xampp\htdocs\wpbeta\wp-includes\pluggable.php on line 838

Thanks for help. The install is clean, no plugins or themes, new database
and fresh install.