Bump MSRV for deps

jonhoo · jonhoo · commit da839198ef86 · 2019-09-16T15:34:12.000-04:00
In particular, we need 1.32 for rust-lang/rust#51994 and `extern crate std` due to getrandom.
diff --git a/.circleci/config.yml b/.circleci/config.yml
@@ -63,6 +63,6 @@ workflows:
     jobs:
       - linux:
           name: openssl
-          image: 1.31.0-stretch
+          image: 1.32.0-stretch
       - macos:
-          version: 1.31.0
+          version: 1.32.0
