This falls under the category of “celebrities are the same as us” — this is Sasha Farber (from Dancing with the Stars) trying to pick up an overturned trash can.
If you see the progression and look at the other trash cans, it seems that the trash collector maybe thought a can was too heavy with all the bricks and dropped it. You see him pulling up on his bike and then looking at the mess. But as you go up the street, you also see a trailer full of the similar rocks/debris. Mystery!
Link (thanks Rita)
