void main() {
    uint[1][2] arr1 = [[0, 0]];
    int[2] arr2 = [1.5, 2.5];
}


DMD 2.067alpha gives a strange error messages:

test.d(2,23): Error: cannot implicitly convert expression ([[0, 0]]) of type int[][] to uint[]
test.d(3,19): Error: cannot implicitly convert expression ([1.5, 2.5]) of type double[] to int[]


But I suggest to give more clear error message, something like:

test.d(2,23): Error: array sizes mismatch, cannot implicitly convert array literal of shape (2, 1) to shape (1, 2)
test.d(3,19): Error: cannot implicitly convert expression ([1.5, 2.5]) of type double[] to int[2]