diff --git a/poetry/core/masonry/api.py b/poetry/core/masonry/api.py
index 0c53b2b50..c14a6d5cf 100644
--- a/poetry/core/masonry/api.py
+++ b/poetry/core/masonry/api.py
@@ -85,7 +85,7 @@ def build_editable(
     config_settings: Optional[Dict[str, Any]] = None,
     metadata_directory: Optional[str] = None,
 ) -> str:
-    poetry = Factory().create_poetry(Path(".").resolve(), with_dev=False)
+    poetry = Factory().create_poetry(Path(".").resolve(), with_groups=False)
 
     return WheelBuilder.make_in(poetry, Path(wheel_directory), editable=True)
 
diff --git a/poetry/core/packages/constraints/base_constraint.py b/poetry/core/packages/constraints/base_constraint.py
index a428b2e4b..5d6a5c8ba 100644
--- a/poetry/core/packages/constraints/base_constraint.py
+++ b/poetry/core/packages/constraints/base_constraint.py
@@ -6,6 +6,9 @@
 
 
 class BaseConstraint(object):
+    def allows(self, other: "ConstraintTypes") -> bool:
+        raise NotImplementedError()
+
     def allows_all(self, other: "ConstraintTypes") -> bool:
         raise NotImplementedError()
 
diff --git a/poetry/core/packages/constraints/empty_constraint.py b/poetry/core/packages/constraints/empty_constraint.py
index d8a789ded..b6be2f586 100644
--- a/poetry/core/packages/constraints/empty_constraint.py
+++ b/poetry/core/packages/constraints/empty_constraint.py
@@ -17,6 +17,9 @@ def matches(self, _: "ConstraintTypes") -> bool:
     def is_empty(self) -> bool:
         return True
 
+    def allows(self, other: "ConstraintTypes") -> bool:
+        return False
+
     def allows_all(self, other: "ConstraintTypes") -> bool:
         return True
 
diff --git a/poetry/core/version/markers.py b/poetry/core/version/markers.py
index ffea9beb1..29ee74fac 100644
--- a/poetry/core/version/markers.py
+++ b/poetry/core/version/markers.py
@@ -224,7 +224,17 @@ def __init__(self, name: str, constraint: Union[str, "VersionTypes"]) -> None:
             else:
                 self._constraint = self._parser(self._constraint_string)
         else:
-            self._constraint = self._parser(self._constraint_string)
+            # if we have a in/not in operator we split the constraint
+            # into a union/multi-constraint of single constraint
+            constraint_string = self._constraint_string
+            if self._operator in {"in", "not in"}:
+                op, glue = ("==", " || ") if self._operator == "in" else ("!=", ", ")
+                values = re.split("[ ,]+", self._value)
+                constraint_string = glue.join(
+                    ("{} {}".format(op, value) for value in values)
+                )
+
+            self._constraint = self._parser(constraint_string)
 
     @property
     def name(self) -> str:
diff --git a/tests/version/test_markers.py b/tests/version/test_markers.py
index f31bd4442..389d25c13 100644
--- a/tests/version/test_markers.py
+++ b/tests/version/test_markers.py
@@ -36,6 +36,34 @@ def test_single_marker():
     assert m.constraint_string == "not in 2.7, 3.0, 3.1"
     assert str(m.constraint) == "<2.7.0 || >=2.8.0,<3.0.0 || >=3.2.0"
 
+    m = parse_marker(
+        "platform_machine in 'x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32'"
+    )
+
+    assert isinstance(m, SingleMarker)
+    assert m.name == "platform_machine"
+    assert (
+        m.constraint_string
+        == "in x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32"
+    )
+    assert str(m.constraint) == (
+        "x86_64 || X86_64 || aarch64 || AARCH64 || ppc64le || PPC64LE || amd64 || AMD64 || win32 || WIN32"
+    )
+
+    m = parse_marker(
+        "platform_machine not in 'x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32'"
+    )
+
+    assert isinstance(m, SingleMarker)
+    assert m.name == "platform_machine"
+    assert (
+        m.constraint_string
+        == "not in x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32"
+    )
+    assert str(m.constraint) == (
+        "!=x86_64, !=X86_64, !=aarch64, !=AARCH64, !=ppc64le, !=PPC64LE, !=amd64, !=AMD64, !=win32, !=WIN32"
+    )
+
 
 def test_single_marker_intersect():
     m = parse_marker('sys_platform == "darwin"')
@@ -476,6 +504,26 @@ def test_multi_marker_removes_duplicates():
             {"python_version": "2.7"},
             False,
         ),
+        (
+            "platform_machine in 'x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32'",
+            {"platform_machine": "foo"},
+            False,
+        ),
+        (
+            "platform_machine in 'x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32'",
+            {"platform_machine": "x86_64"},
+            True,
+        ),
+        (
+            "platform_machine not in 'x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32'",
+            {"platform_machine": "foo"},
+            True,
+        ),
+        (
+            "platform_machine not in 'x86_64 X86_64 aarch64 AARCH64 ppc64le PPC64LE amd64 AMD64 win32 WIN32'",
+            {"platform_machine": "x86_64"},
+            False,
+        ),
     ],
 )
 def test_validate(marker_string, environment, expected):