Merge #300: CI fix

b0e078d Fix Fuzz CI at rust 1.58 (sanket1729)

Pull request description:

  Corollary to rust-bitcoin/rust-bitcoin#848

ACKs for top commit:
  apoelstra:
    ACK b0e078d

Tree-SHA512: fd9ff7b8a0d833b82e30505c222b9b8697edc19c2335c6d4b25377b1d6ba9620c52e2ddb486b5f54c961fd0739a09a669008de447e7774e9698a2359f3d050d0

Author: apoelstra

.github/workflows/rust.yml

@@ -9,7 +9,7 @@ jobs:
     strategy:
       matrix:
         rust:
-          - stable
+          - 1.58.0
     steps:
       - name: Checkout Crate
         uses: actions/checkout@v2