Merge pull request #1033 from TheBlueMatt/2021-07-fix-beta

Fix lightning-persister tests for upcoming rustc changes

diff --combined .github/workflows/build.yml
index 100fbdfcff6c66814b8c847d737c4a87a8c4ceb8,7d9cf422aca59bed4ed4bbce21b9c1507facbc20..738a54f91a50b8159160b8ac09bc16e79fa5c5c3
--- 1/.github/workflows/build.yml
--- 2/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@@ -26,10 -26,18 +26,18 @@@ jobs
              platform: macos-latest
              build-net-tokio: true
              build-no-std: true
+           - toolchain: beta
+             platform: macos-latest
+             build-net-tokio: true
+             build-no-std: true
            - toolchain: stable
              platform: windows-latest
              build-net-tokio: true
              build-no-std: true
+           - toolchain: beta
+             platform: windows-latest
+             build-net-tokio: true
+             build-no-std: true
            - toolchain: beta
              build-net-tokio: true
              build-no-std: true
@@@ -262,4 -270,4 +270,4 @@@
            rustup component add clippy
        - name: Run default clippy linting
          run: |
 -          cargo clippy -- -Aclippy::erasing_op -Aclippy::never_loop -Aclippy::if_same_then_else
 +          cargo clippy -- -Aclippy::erasing_op -Aclippy::never_loop -Aclippy::if_same_then_else -Dclippy::try_err