diff --git a/.travis.yml b/.travis.yml
index 9c2f178..c16aa7c 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,5 +1,5 @@
 language: rust
-rust: stable
+rust: beta
 env: TARGET_BUILD=thumbv7em-none-eabi
 
 stages:
diff --git a/azure-pipelines.yml b/azure-pipelines.yml
deleted file mode 100644
index edae5e2..0000000
--- a/azure-pipelines.yml
+++ /dev/null
@@ -1,31 +0,0 @@
-trigger:
-- master
-
-jobs:
-- job: rustfmt
-  displayName: 'Check Code Formatting'
-  pool:
-    vmImage: 'Ubuntu-16.04'
-  steps:
-  - script: curl https://sh.rustup.rs -sSf | sh -s -- -y
-    displayName: 'Install Rust'
-  - script: $HOME/.cargo/bin/rustup component add rustfmt
-    displayName: 'Install rustfmt'
-  - script: $HOME/.cargo/bin/cargo fmt --all -- --check
-    displayName: 'Check code formatting'
-
-- job: check
-  displayName: 'Build project'
-  pool:
-    vmImage: 'Ubuntu-16.04'
-  strategy:
-    matrix:
-      thumbv6:
-        TARGET: thumbv7em-none-eabi
-  steps:
-  - script: curl https://sh.rustup.rs -sSf | sh -s -- -y
-    displayName: 'Install Rust'
-  - script: $HOME/.cargo/bin/rustup target add $TARGET
-    displayName: 'Install target libraries'
-  - script: $HOME/.cargo/bin/cargo check --target $TARGET
-    displayName: 'Running `cargo check`'