Allow PPC to fail - segfault

Author: gnzlbg

.travis.yml

@@ -231,11 +231,11 @@ matrix:
         - mv ci/switch.json switch.json
         - cargo xbuild --target switch.json
 
-
   allow_failures:
       - name: "Semver Linux"
       - name: "Semver MacOSX"
       - env: TARGET=wasm32-wasi
+      - env: TARGET=powerpc-unknown-linux-gnu
 
 install: travis_retry rustup target add $TARGET