==================
WARNING: DATA RACE
Write at 0x00c0000b6f08 by goroutine 257:
  github.com/hashicorp/raft.(*Raft).runCandidate.func1()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/raft.go:293 +0x38
  runtime.deferreturn()
      /usr/local/go/src/runtime/panic.go:436 +0x34
  github.com/hashicorp/raft.(*Raft).run()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/raft.go:146 +0x84
  github.com/hashicorp/raft.(*Raft).run-fm()
      <autogenerated>:1 +0x38
  github.com/hashicorp/raft.(*raftState).goFunc.func1()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/state.go:146 +0x74

Previous read at 0x00c0000b6f08 by goroutine 381:
  github.com/hashicorp/raft.(*Raft).appendEntries()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/raft.go:1384 +0x270
  github.com/hashicorp/raft.(*Raft).processHeartbeat()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/raft.go:1353 +0x10c
  github.com/hashicorp/raft.(*Raft).processHeartbeat-fm()
      <autogenerated>:1 +0x7c
  github.com/hashicorp/raft.(*NetworkTransport).handleCommand()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/net_transport.go:640 +0x9cc
  github.com/hashicorp/raft.(*NetworkTransport).handleConn()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/net_transport.go:542 +0x438
  github.com/hashicorp/raft.(*NetworkTransport).listen.func1()
      /Users/ivan/dev/go/pkg/mod/github.com/hashicorp/raft@v1.3.9/net_transport.go:520 +0x68