drop Xargo

.travis.yml

@@ -33,10 +33,7 @@ script:
 
 after_script: set +e
 
-cache:
+cache: cargo
-  cargo: true
-  directories:
-    - $HOME/.xargo
 
 before_cache:
   # Travis can't cache files that are not readable by "others"

ci/install.sh

@@ -1,21 +1,9 @@
 set -euxo pipefail
 
 main() {
-    # install latest Xargo
+    if [ $TARGET != x86_64-unknown-linux-gnu ]; then
-    local tag=$(git ls-remote --tags --refs --exit-code https://github.com/japaric/xargo \
+        rustup target add $TARGET
-                    | cut -d/ -f3 \
+    fi
-                    | grep -E '^v[0-9.]+$' \
-                    | sort --version-sort \
-                    | tail -n1)
-    curl -LSfs https://japaric.github.io/trust/install.sh | \
-        sh -s -- \
-           --force \
-           --git japaric/xargo \
-           --target x86_64-unknown-linux-musl \
-           --tag $tag
-
-    rustup component list | grep 'rust-src.*installed' || \
-        rustup component add rust-src
 }
 
 main

ci/script.sh

@@ -1,13 +1,9 @@
 set -euxo pipefail
 
 main() {
-    case $TARGET in
-        thumb*m-none-eabi)
-            xargo check --target $TARGET
-            ;;
-        x86_64-unknown-linux-gnu)
     cargo check --target $TARGET
 
+    if [ $TARGET = x86_64-unknown-linux-gnu ]; then
         cargo test --target $TARGET
         cargo test --target $TARGET --release
 
@@ -17,12 +13,7 @@ main() {
 
         cargo test --test tsan --target $TARGET
         cargo test --test tsan --target $TARGET --release
-            ;;
+    fi
-        *)
-            # unhandled case
-            exit 1
-            ;;
-    esac
 }
 
 main