re-add jemalloc submodule

.gitmodules

@@ -1,3 +1,4 @@
 [submodule "jemalloc-sys/jemalloc"]
 	path = jemalloc-sys/jemalloc
-	url = https://github.com/rust-lang/jemalloc
+	url = https://github.com/jemalloc/jemalloc
+	branch = dev

.travis.yml

@@ -62,13 +62,11 @@ matrix:
 #    - env: TARGET=asmjs-unknown-emscripten
 #    - env: TARGET=wasm32-unknown-emscripten
 
-script: ci/run.sh
+script:
+  - ci/run.sh
 env:
   global:
     - secure: "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"
 notifications:
   email:
     on_success: never
-
-git:
-  submodules: false

ci/run.sh

@@ -13,6 +13,16 @@ export CARGO_CMD=cross
 # Runs jemalloc tests using "make check":
 #export JEMALLOC_SYS_RUN_TESTS=1
 
+# FIXME when jemalloc 5.1 is released, should just be:
+# git submodule init --update --recursive
+# This fetches the jemalloc 5.1rc1 commit manually
+cd jemalloc-sys
+rm -rf jemalloc
+git clone https://github.com/jemalloc/jemalloc.git
+cd jemalloc
+git checkout -b rc1 b8f4c730eff28edee4b583ff5b6ee1fac0f26c27
+cd ../..
+
 # Use cargo on native CI platforms:
 if [[ ${TARGET} = *"windows"* ]] || \
        [[ ${TARGET} = *"x86_64-unknown-linux-gnu"* ]] || [[ ${TARGET} = *"i686-unknown-linux-gnu"* ]] || [[ ${TARGET} = *"i586-unknown-linux-gnu"* ]] \
@@ -21,7 +31,6 @@ if [[ ${TARGET} = *"windows"* ]] || \
     export JEMALLOC_SYS_VERIFY_CONFIGURE=1
 else
     cargo install cross
-    docker build -t jemallocator/${TARGET}:0.1 ci/docker/${TARGET}
 fi
 
 # Make sure TARGET is installed when using cargo: