drop2.js failing on 64-bit Legacy machine

assert.soon failed: function () { dropOp = op( true ); return dropOp; }, msg:undefined

Error: Printing Stack Trace

    at printStackTrace (src/mongo/shell/utils.js:37:7)

    at doassert (src/mongo/shell/utils.js:58:1)

    at Function.assert.soon (src/mongo/shell/utils.js:167:49)

    at /mnt/data/slaves/Linux_64bit_Legacy/mongo/jstests/drop2.js:36:8

Thu Nov 15 13:42:37.341 exec error: src/mongo/shell/utils.js:59 assert.soon failed: function () { dropOp = op( true ); return dropOp; }, msg:undefined

throw msg;

      ^

failed to load: /mnt/data/slaves/Linux_64bit_Legacy/mongo/jstests/drop2.js