panic: couldn't unmarshal Raw bson into D: Unknown element kind (0x13)

goroutine 1 [running]:
github.com/mongodb/mongo-tools/mongoreplay.extractOpType(0x43889e0, 0xc4222494c0, 0x43889e0, 0xc4222494c0, 0x4361420, 0x400961c)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/.gopath/src/github.com/mongodb/mongo-tools/mongoreplay/query_op.go:56 +0x678
github.com/mongodb/mongo-tools/mongoreplay.extractOpType(0x435b6c0, 0xc4222494a0, 0x4d, 0x0, 0x0, 0xc422055990)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/.gopath/src/github.com/mongodb/mongo-tools/mongoreplay/query_op.go:51 +0x2c7
github.com/mongodb/mongo-tools/mongoreplay.(*QueryOp).Meta(0xc4220a5ef0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/.gopath/src/github.com/mongodb/mongo-tools/mongoreplay/query_op.go:29 +0x6b
github.com/mongodb/mongo-tools/mongoreplay.(*RegularStatGenerator).GenerateOpStat(0xc42118e000, 0xc4222767e0, 0x45c2f00, 0xc4220a5ef0, 0x0, 0x0, 0x0, 0x0, 0x0)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/.gopath/src/github.com/mongodb/mongo-tools/mongoreplay/stat_collector.go:382 +0x77
github.com/mongodb/mongo-tools/mongoreplay.(*StatCollector).Collect(0xc421118050, 0xc4222767e0, 0x45c2f00, 0xc4220a5ef0, 0x0, 0x0, 0x0, 0x0)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/.gopath/src/github.com/mongodb/mongo-tools/mongoreplay/stat_collector.go:173 +0xce
github.com/mongodb/mongo-tools/mongoreplay.(*MonitorCommand).Execute(0xc4200e60c0, 0xc42006c2a0, 0x0, 0x6, 0x0, 0x0)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/.gopath/src/github.com/mongodb/mongo-tools/mongoreplay/monitor.go:146 +0x298
github.com/jessevdk/go-flags.(*Parser).ParseArgs(0xc420014370, 0xc420010160, 0x6, 0x6, 0x4011818, 0x90, 0xc4210e8630, 0xc4200fc800, 0xc4200fc4c8)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/vendor/src/github.com/jessevdk/go-flags/parser.go:301 +0x844
github.com/jessevdk/go-flags.(*Parser).Parse(0xc420014370, 0x43d45d8, 0x6, 0x43e5306, 0x14, 0x0)
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/vendor/src/github.com/jessevdk/go-flags/parser.go:175 +0x73
main.main()
        /data/mci/625dbcac5ade9db558ed3b129cabf0a8/src/src/mongo/gotools/mongoreplay/main/mongoreplay.go:71 +0x43e

mongoreplay version: r4.0.2
git version: fc1573ba18aee42f97a3bb13b67af7d837826b47
Go version: go1.8.7
   os: darwin
   arch: amd64
   compiler: gc