Fix logging error with emoji in git branch name. (#2790)

Resolves https://github.com/tox-dev/tox/issues/2768

2 files changed, 2 insertions, 2 deletions

diff --git a/src/tox/pytest.py b/src/tox/pytest.py
index 21cd816a..ae211252 100644
--- a/src/tox/pytest.py
+++ b/src/tox/pytest.py
@@ -161,7 +161,7 @@ class ToxProject:
                 at_path.mkdir(exist_ok=True)
                 ToxProject._setup_files(at_path, None, value)
             elif isinstance(value, str):
-                at_path.write_text(textwrap.dedent(value))
+                at_path.write_text(textwrap.dedent(value), encoding="utf-8")
             elif value is None:
                 at_path.mkdir()
             else:
diff --git a/src/tox/tox_env/api.py b/src/tox/tox_env/api.py
index 98c4501a..3ce15b99 100644
--- a/src/tox/tox_env/api.py
+++ b/src/tox/tox_env/api.py
@@ -444,7 +444,7 @@ class ToxEnv(ABC):
 
     @staticmethod
     def _write_execute_log(env_name: str, log_file: Path, request: ExecuteRequest, status: ExecuteStatus) -> None:
-        with log_file.open("wt") as file:
+        with log_file.open("wt", encoding="utf-8") as file:
             file.write(f"name: {env_name}\n")
             file.write(f"run_id: {request.run_id}\n")
             for env_key, env_value in request.env.items():