restore ubuntu testing to ci.yml with rust version 1.77

diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index 9bbf50b6f074716eb04f500067b9168329bf0d3d..d6eec76b06fba3d60bfd7b1b2faeb6785570b8e3 100644 (file)
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -47,6 +47,7 @@ jobs:
           # FIXME(issue #2138): run wasm tests, failing to run since https://github.com/mthom/scryer-prolog/pull/2137 removed wasm-pack
           - { os: ubuntu-22.04,   rust-version: nightly, target: 'wasm32-unknown-unknown',   publish: true, args: '--no-default-features' , test-args: '--no-run --no-default-features' }
           # rust versions
+          - { os: ubuntu-22.04, rust-version: "1.77", target: 'x86_64-unknown-linux-gnu'} 
           - { os: ubuntu-22.04,   rust-version: beta,    target: 'x86_64-unknown-linux-gnu'}
           - { os: ubuntu-22.04,   rust-version: nightly, target: 'x86_64-unknown-linux-gnu'}
     defaults: