Migrate to compiling on Rust stable

- Clean up CI. No need to install nightly rust anymore
- Migrate to latest PyO3

.github/workflows/workflow.yaml

@@ -7,18 +7,11 @@ on:
 
 jobs:
   lint:
-    runs-on: ubuntu-latest
+    runs-on: ubuntu-20.04
     steps:
       - name: Checkout
         uses: actions/checkout@v1
 
-      - name: Install latest nightly
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: nightly
-          override: true
-          components: "clippy, rustfmt"
-
       - name: Lint with rustfmt
         uses: actions-rs/cargo@v1
         with:
@@ -37,7 +30,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [3.6, 3.7, 3.8]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-20.04, macos-latest, windows-latest]
 
     steps:
       - name: Checkout
@@ -53,11 +46,6 @@ jobs:
           python -m pip install --upgrade pip
           pip install poetry
           poetry install
-      - name: Install latest nightly
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: nightly
-          override: true
 
       - name: Build Python package
         run: poetry run maturin develop --release
@@ -73,20 +61,14 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [3.6, 3.7, 3.8]
-        os: [ubuntu-latest, macos-latest, windows-latest]
+        os: [ubuntu-20.04, macos-latest, windows-latest]
     steps:
       - uses: actions/checkout@v1
 
       - uses: actions/setup-python@v1
         with:
           python-version: ${{ matrix.python-version }}
 
-      - name: Install latest nightly
-        uses: actions-rs/toolchain@v1
-        with:
-          toolchain: nightly
-          override: true
-
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip

Cargo.toml

@@ -22,8 +22,8 @@ boxcars = "0.8.6"
 serde_json = "1.0.52"
 
 [dependencies.pyo3]
-version = "0.9.2"
-features = ["extension-module", "python3"]
+version = "0.13.0"
+features = ["extension-module"]
 
 [lib]
 name = "boxcars_py"

Makefile

@@ -3,19 +3,15 @@ MATURIN := maturin
 PYTHON := python
 
 .PHONY: build
-build: nightly dev-packages
+build: dev-packages
 	poetry run $(MATURIN) build --interpreter $(PYTHON)
 
 .PHONY: build-release
-build-release: nightly dev-packages
+build-release: dev-packages
 	poetry run $(MATURIN) build --release --interpreter $(PYTHON)
 
-.PHONY: nightly
-nightly:
-	rustup override set nightly
-
 .PHONY: install
-install: nightly dev-packages
+install: dev-packages
 	poetry run $(MATURIN) develop --release
 
 .PHONY: publish

README.md

@@ -27,7 +27,7 @@ replay = parse_replay(buf)
 ## Building from source
 
 __Requirements__
-  - Rust Nightly. Minium supported version: 1.42.0-nightly 2020-01-21
+  - Rust.
   - [poetry](https://pypi.org/project/poetry/)
 
 ```

src/lib.rs

@@ -22,13 +22,13 @@ fn boxcars_py(_py: Python, m: &PyModule) -> PyResult<()> {
 }
 
 fn to_py_error<E: std::error::Error>(e: E) -> PyErr {
-    PyErr::new::<exceptions::Exception, _>(format!("{}", e))
+    PyErr::new::<exceptions::PyException, _>(format!("{}", e))
 }
 
 fn convert_to_py(py: Python, value: &Value) -> PyObject {
     match value {
         Value::Null => py.None(),
-        Value::Bool(b) => PyObject::from_py(*b, py),
+        Value::Bool(b) => b.into_py(py),
         Value::Number(n) => match n {
             n if n.is_u64() => n.as_u64().unwrap().into_py(py),
             n if n.is_i64() => n.as_i64().unwrap().into_py(py),