Test for broken time crate

.devcontainer/Dockerfile

@@ -4,3 +4,5 @@ FROM mcr.microsoft.com/vscode/devcontainers/rust:0-1
 
 RUN apt-get update && export DEBIAN_FRONTEND=noninteractive \
      && apt-get -y install --no-install-recommends asciidoctor
+
+RUN rm /etc/localtime && ln -s /usr/share/zoneinfo/Europe/Berlin /etc/localtime

.github/workflows/check.yml

@@ -18,6 +18,9 @@ jobs:
     name: Test Suite
     runs-on: ubuntu-latest
     steps:
+      - uses: actions/set-timezone-action@v1.1
+        with:
+          timezoneLinux: Europe/Berlin
       - uses: actions/checkout@v2
       - uses: actions-rs/toolchain@v1
         with:

src/tests/mod.rs

@@ -5,4 +5,9 @@
 mod common;
 mod nat;
 mod payload;
-mod peers;
+mod peers;
+
+#[test]
+fn test_time_format() {
+    assert!(time::OffsetDateTime::try_now_local().is_ok());
+}