go get bulk_data_gen failed

go get bulk_data_gen failed like below:
```
root@mgt01# go get github.com/influxdata/influxdb-comparisons/cmd/bulk_data_gen
go: found github.com/influxdata/influxdb-comparisons/cmd/bulk_data_gen in github.com/influxdata/influxdb-comparisons v0.0.0-20200702145229-f3a7a1e11bb4
go: finding module for package github.com/pelletier/go-toml
go: finding module for package github.com/google/flatbuffers/go
go: finding module for package github.com/golang/protobuf/proto
go: downloading github.com/google/flatbuffers v1.12.0
go: found github.com/pelletier/go-toml in github.com/pelletier/go-toml v1.8.1
go: found github.com/golang/protobuf/proto in github.com/golang/protobuf v1.4.2
go: finding module for package github.com/google/flatbuffers/go
go: finding module for package github.com/google/flatbuffers/go
go: finding module for package github.com/google/flatbuffers/go
../../pkg/mod/github.com/influxdata/influxdb-comparisons@v0.0.0-20200702145229-f3a7a1e11bb4/bulk_data_gen/common/pools.go:6:2: github.com/google/flatbuffers@v1.12.0: verifying module: checksum mismatch
downloaded: h1:N8EguYFm2wwdpoNcpchQY0tPs85vOJkboFb2dPxmixo=
sum.golang.org: h1:/PtAHvnBY4Kqnx/xCQ3OIV9uYcSFGScBsWI3Oogeh6w=

SECURITY ERROR
This download does NOT match the one reported by the checksum server.
The bits may have been replaced on the origin server, or an attacker may
have intercepted the download attempt.

For more information, see 'go help module-auth'.
```

Reproduce the reported `go get github.com/influxdata/influxdb-comparisons/cmd/bulk_data_gen` failure and inspect `bulk_data_gen/common/pools.go`, where the flatbuffers dependency is referenced. Check the module and checksum behavior around `github.com/google/flatbuffers`; done means the command resolves dependencies without the reported checksum mismatch.

Written by the indexing model from the issue text.