copy parts of install.sh from discovery book and see if it fixes the issue

Author: yerke

ci/install.sh

@@ -1,15 +1,18 @@
 set -euxo pipefail
 
 main() {
-    local tag=$(git ls-remote --tags --refs --exit-code https://github.com/rust-lang-nursery/mdbook \
+    local tag=$(git ls-remote --tags --refs --exit-code \
+                    https://github.com/rust-lang/mdbook \
                     | cut -d/ -f3 \
-                    | grep -E '^v0.2.[0-9]+$' \
+                    | grep -E '^v[0-9\.]+$' \
                     | sort --version-sort \
                     | tail -n1)
-    # Temporarily use older version until packages are available for 0.2.2 (or newer)
-    local tag="v0.2.1"
+
     curl -LSfs https://japaric.github.io/trust/install.sh | \
-        sh -s -- --git rust-lang-nursery/mdbook --tag $tag
+        sh -s -- \
+           --force \
+           --git rust-lang/mdbook \
+           --tag $tag
 
     pip install linkchecker --user
 }

ci/script.sh

@@ -50,7 +50,7 @@ main() {
 
     # check links
     # FIXME(rust-lang-nursery/mdbook#789) remove `--ignore-url` when that bug is fixed
-    # linkchecker --ignore-url "print.html" doc
+    linkchecker --ignore-url "print.html" doc
 }
 
 main