travis: use local stm32-rs and fail stable/beta

This matches the currently targeted dependencies/rust versions.
It should be removed once #5 and #6 are resolved.

Author: jordens

.github/force-pac-master.sh

@@ -0,0 +1,17 @@
+#!/bin/bash
+
+set -e
+
+git clone https://github.com/stm32-rs/stm32-rs
+cd stm32-rs
+cargo install svd2rust
+rustup component add rustfmt
+pip install --user pyyaml
+cd svd
+./extract.sh
+cd ..
+make patch
+make -j$(nproc) svd2rust
+cd ..
+
+sed -i 's|/your/path/here/||' Cargo.toml

.travis.yml

@@ -15,6 +15,7 @@ branches:
 
 before_script:
   - rustup target add thumbv7em-none-eabihf
+  - ./github/force-pac-master.sh
 
 env:
 - MCU=stm32h742
@@ -24,7 +25,8 @@ env:
 
 matrix:
   allow_failures:
-    - rust: nightly
+    - rust: stable
+    - rust: beta
   fast_finish: true
 
 script: