diff --git a/.github/workflows/rust.yml b/.github/workflows/rust.yml
index b7ec752..3ea991a 100644
--- a/.github/workflows/rust.yml
+++ b/.github/workflows/rust.yml
@@ -1,33 +1,44 @@
-name: Rust
+name: rust
 
 # Trigger the workflow on push or pull request
 on: [push, pull_request]
 
 jobs:
-  rustfmt:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Install latest nightly
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: nightly
-      - run: rustup component add rustfmt
-      - uses: actions-rs/cargo@v2
-        with:
-          command: fmt
-          args: --all -- --check
+    ci:
+        runs-on: ubuntu-latest
 
-  clippy:
-    runs-on: ubuntu-latest
-    steps:
-      - uses: actions/checkout@v2
-      - name: Install latest nightly
-        uses: actions-rs/toolchain@v1
-        with:
-            toolchain: stable
-      - run: rustup component add clippy
-      - uses: actions-rs/cargo@v2
-        with:
-          command: clippy
-          # args: -- -D warnings
+        strategy:
+            matrix:
+                rust:
+                    - stable
+                    - beta
+                    - nightly
+
+        steps:
+            - uses: actions/checkout@v2
+            - uses: actions-rs/toolchain@v1
+                with:
+                    profile: minimal
+                    toolchain: ${{ matrix.rust }}
+                    override: true
+                    components: rustfmt, clippy
+
+            - uses: actions-rs/cargo@v1
+                with:
+                    command: build
+                    args: --all-features
+
+            - uses: actions-rs/cargo@v1
+                with:
+                    command: test
+                    args: --all-features
+
+            - uses: actions-rs/cargo@v1
+                with:
+                    command: doc
+                    args: --all-features
+
+            - uses: actions-rs/cargo@v1
+                with:
+                    command: fmt
+                    args: --all -- --check
diff --git a/.travis.yml b/.travis.yml
index 982e71a..e276f81 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -35,6 +35,6 @@ script:
 after_success: |
   # this does require a -Z flag for Doctests, which is unstable!
   if [[ "$TRAVIS_RUST_VERSION" == nightly ]]; then
-    cargo tarpaulin --ignore-panics --ignore-tests --run-types Tests Doctests --out Xml
+    cargo tarpaulin -f --ignore-panics --ignore-tests --run-types Tests Doctests --out Xml
     bash <(curl -s https://codecov.io/bash)
   fi
diff --git a/deny.toml b/deny.toml
index 880fd2a..407794b 100644
--- a/deny.toml
+++ b/deny.toml
@@ -40,7 +40,7 @@ vulnerability = "deny"
 # The lint level for unmaintained crates
 unmaintained = "warn"
 # The lint level for crates that have been yanked from their source registry
-yanked = "warn"
+# yanked = "warn"
 # The lint level for crates with security notices. Note that as of
 # 2019-12-17 there are no security notice advisories in
 # https://github.com/rustsec/advisory-db