terraform 0.13 provider version search bug

relevant-filesystem-listing.txt

/Users/skane/.terraform.d/plugins/terraform.spkane.org:
total 0
drwxr-xr-x  3 skane  staff   96 Oct 10 21:49 ./
drwxr-x---  5 skane  staff  160 Oct 10 21:49 ../
drwxr-xr-x  3 skane  staff   96 Oct 10 21:49 spkane/

/Users/skane/.terraform.d/plugins/terraform.spkane.org/spkane:
total 0
drwxr-xr-x  3 skane  staff  96 Oct 10 21:49 ./
drwxr-xr-x  3 skane  staff  96 Oct 10 21:49 ../
drwxr-xr-x  3 skane  staff  96 Oct 12 16:46 todo/

/Users/skane/.terraform.d/plugins/terraform.spkane.org/spkane/todo:
total 0
drwxr-xr-x  3 skane  staff  96 Oct 12 16:46 ./
drwxr-xr-x  3 skane  staff  96 Oct 10 21:49 ../
drwxr-xr-x  3 skane  staff  96 Oct 10 22:52 1.1.0/

/Users/skane/.terraform.d/plugins/terraform.spkane.org/spkane/todo/1.1.0:
total 0
drwxr-xr-x  3 skane  staff  96 Oct 10 22:52 ./
drwxr-xr-x  3 skane  staff  96 Oct 12 16:46 ../
drwxr-xr-x  3 skane  staff  96 Oct 12 16:48 darwin_amd64/

/Users/skane/.terraform.d/plugins/terraform.spkane.org/spkane/todo/1.1.0/darwin_amd64:
total 43032
drwxr-xr-x  3 skane  staff        96 Oct 12 16:48 ./
drwxr-xr-x  3 skane  staff        96 Oct 10 22:52 ../
-rwxr-xr-x  1 skane  staff  22029840 Oct 12 16:48 terraform-provider-todo*

terraform_0-13_provider_version_search_bug.txt

$ TF_LOG=trace terraform init
2020/10/12 17:04:59 [INFO] Terraform version: 0.13.4
2020/10/12 17:04:59 [INFO] Go runtime version: go1.14.7
2020/10/12 17:04:59 [INFO] CLI args: []string{"/Users/skane/bin/terraform", "init"}
2020/10/12 17:04:59 [DEBUG] Attempting to open CLI config file: /Users/skane/.terraformrc
2020/10/12 17:04:59 [DEBUG] File doesn't exist, but doesn't need to. Ignoring.
2020/10/12 17:04:59 [DEBUG] checking for credentials in "/Users/skane/.terraform.d/plugins"
2020/10/12 17:04:59 [DEBUG] checking for credentials in "/Users/skane/.terraform.d/plugins/darwin_amd64"
2020/10/12 17:04:59 [DEBUG] ignoring non-existing provider search directory terraform.d/plugins
2020/10/12 17:04:59 [DEBUG] will search for provider plugins in /Users/skane/.terraform.d/plugins
2020/10/12 17:04:59 [TRACE] getproviders.SearchLocalDirectory: /Users/skane/.terraform.d/plugins is a symlink to /Users/skane/.terraform.d/plugins
2020/10/12 17:04:59 [TRACE] getproviders.SearchLocalDirectory: found terraform.spkane.org/spkane/todo v1.1.0 for darwin_amd64 at /Users/skane/.terraform.d/plugins/terraform.spkane.org/spkane/todo/1.1.0/darwin_amd64
2020/10/12 17:04:59 [DEBUG] will search for provider plugins in /Users/skane/Library/Application Support/io.terraform/plugins
2020/10/12 17:04:59 [TRACE] getproviders.SearchLocalDirectory: /Users/skane/Library/Application Support/io.terraform/plugins is a symlink to /Users/skane/Library/Application Support/io.terraform/plugins
2020/10/12 17:04:59 [DEBUG] ignoring non-existing provider search directory /Library/Application Support/io.terraform/plugins
2020/10/12 17:04:59 [INFO] CLI command args: []string{"init"}

Initializing the backend...
2020/10/12 17:04:59 [TRACE] Meta.Backend: no config given or present on disk, so returning nil config
2020/10/12 17:04:59 [TRACE] Meta.Backend: backend has not previously been initialized in this working directory
2020/10/12 17:04:59 [DEBUG] New state was assigned lineage "aa334f86-dc58-b179-c42a-8220fe97d929"
2020/10/12 17:04:59 [TRACE] Meta.Backend: using default local state only (no backend configuration, and no existing initialized backend)
2020/10/12 17:04:59 [TRACE] Meta.Backend: instantiated backend of type <nil>
2020/10/12 17:04:59 [DEBUG] checking for provisioner in "."
2020/10/12 17:04:59 [DEBUG] checking for provisioner in "/Users/skane/bin"
2020/10/12 17:04:59 [DEBUG] checking for provisioner in "/Users/skane/.terraform.d/plugins"
2020/10/12 17:04:59 [DEBUG] checking for provisioner in "/Users/skane/.terraform.d/plugins/darwin_amd64"
2020/10/12 17:04:59 [INFO] Failed to read plugin lock file .terraform/plugins/darwin_amd64/lock.json: open .terraform/plugins/darwin_amd64/lock.json: no such file or directory
2020/10/12 17:04:59 [TRACE] Meta.Backend: backend <nil> does not support operations, so wrapping it in a local backend
2020/10/12 17:04:59 [TRACE] backend/local: state manager for workspace "default" will:
 - read initial snapshot from terraform.tfstate
 - write new snapshots to terraform.tfstate
 - create any backup at terraform.tfstate.backup
2020/10/12 17:04:59 [TRACE] statemgr.Filesystem: reading initial snapshot from terraform.tfstate
2020/10/12 17:04:59 [TRACE] statemgr.Filesystem: read snapshot with lineage "2965cc41-d215-6953-c20c-06327d9553f4" serial 21

2020/10/12 17:04:59 [TRACE] providercache.fillMetaCache: scanning directory .terraform/plugins
Initializing provider plugins...
2020/10/12 17:04:59 [TRACE] getproviders.SearchLocalDirectory: .terraform/plugins is a symlink to .terraform/plugins
2020/10/12 17:04:59 [TRACE] providercache.fillMetaCache: error while scanning directory .terraform/plugins: failed to read metadata about .terraform/plugins/terraform.spkane.org/spkane/todo/1.0.0/darwin_amd64: stat .terraform/plugins/terraform.spkane.org/spkane/todo/1.0.0/darwin_amd64: no such file or directory
2020/10/12 17:04:59 [WARN] Failed to scan provider cache directory .terraform/plugins: failed to read metadata about .terraform/plugins/terraform.spkane.org/spkane/todo/1.0.0/darwin_amd64: stat .terraform/plugins/terraform.spkane.org/spkane/todo/1.0.0/darwin_amd64: no such file or directory
2020/10/12 17:04:59 [TRACE] providercache.Dir.InstallPackage: installing terraform.spkane.org/spkane/todo v1.1.0 from /Users/skane/.terraform.d/plugins/terraform.spkane.org/spkane/todo/1.1.0/darwin_amd64
2020/10/12 17:04:59 [TRACE] providercache.fillMetaCache: scanning directory .terraform/plugins- Finding terraform.spkane.org/spkane/todo versions matching "1.1.0"...

2020/10/12 17:04:59 [TRACE] getproviders.SearchLocalDirectory: .terraform/plugins is a symlink to .terraform/plugins
2020/10/12 17:04:59 [TRACE] providercache.fillMetaCache: error while scanning directory .terraform/plugins: failed to read metadata about .terraform/plugins/terraform.spkane.org/spkane/todo/1.0.0/darwin_amd64: stat .terraform/plugins/terraform.spkane.org/spkane/todo/1.0.0/darwin_amd64: no such file or directory
- Installing terraform.spkane.org/spkane/todo v1.1.0...

Error: Failed to install provider

Error while installing terraform.spkane.org/spkane/todo v1.1.0: after
installing terraform.spkane.org/spkane/todo it is still not detected in the
target directory; this is a bug in Terraform

test.tf

terraform {
  required_providers {
    todo = {
      source  = "terraform.spkane.org/spkane/todo"
      version = "1.1.0"
    }
  }
}

provider "todo" {
  host = "127.0.0.1"
  port = "8080"
  apipath = "/"
  schema = "http"
}

data "todo" "foreign" {
  id = 1
}

resource "todo" "test1" {
  count = 5
  description = "${count.index}-1 ${var.purpose} todo"
  completed = false
}

resource "todo" "test2" {
  count = 5
  description = "${count.index}-2 ${var.purpose} todo (linked to ${data.todo.foreign.id})"
  completed = false
}

output "todo_1_ids" {
  value = todo.test1.*.id
}

output "todo_2_ids" {
  value = todo.test2.*.id
}

variable "purpose" {
    type = string
    description = "Tag the purpose of this todo"
    default = "test"
}