broken Poetry package recipe

pyproject.toml

[tool.poetry]
name = "xxxxxxxxx"
version = "0.47.1"
description = "xxxxxxxx"
authors = ["xxxxxx"]

repository = "https://xxxxxxxxx/api/pypi/pypi-virtual/simple"
packages = [
    { include = "xxxmanager", from = "src" },
    { include = "xxxmodels", from = "src"}
]

[tool.poetry.dependencies]
python = "^3.7"
pint = "^0.9.0"
requests = "^2.21"
scipy = "~1.2.1"
graphqlclient = "^0.2.4"
toml = "^0.10.0"
pyaml = "^19.4"
chaospy = "^3.0"
pandas = "^0.25.3"
numpy = "^1.17"

[tool.poetry.dev-dependencies]
pytest = "^4.3"
flake8 = "^3.7"
pytest-cov = "^2.6"
hypothesis = "^4.17"
pre-commit = "^1.16"
toml = "^0.10.0"
mypy = "^0.720.0"
fissix = {python = ">=3.6",allows-prereleases = true,version = "*"}
dephell = "^0.8.0"
vulture = "^1.2"

[tool.dephell.main]
# read from poetry format
from = {format = "poetry", path = "pyproject.toml"}

[build-system]
requires = ["poetry>=0.12"]
build-backend = "poetry.masonry.api"