WARNING: 0:38: attribute deprecated in version 130; may be removed in future release
ERROR: 0:38: 'attribute' : no longer supported in core profile; removed in version 420
ERROR: 0:45: 'discard' : not supported in this stage: vertex
ERROR: 2 compilation errors.  No code generated.

ERROR: node is still EOpNull!
0:42  Function Definition: main( (void)
0:42    Function Parameters: 
0:44    Sequence
0:44      move second child to first child (4-component vector of float)
0:44        'gl_Position' (gl_Position 4-component vector of float)
0:44        Construct vec4 (4-component vector of float)
0:44          'color' (in 3-component vector of float)
0:44          142.000000
0:45      Branch: Kill
0:?   Linker Objects
0:?     'color' (in 3-component vector of float)
0:?     'foo' (uniform sampler2DRect)
0:?     'gl_VertexID' (gl_VertexId int)
0:?     'gl_InstanceID' (gl_InstanceId int)