.circleci: Output commands on run for easier debugging (#2073)

These are a bit difficult to debug when you can't see the commands that
are running. So just output every command that's running to stdout using
`set -x`
Signed-off-by: Eli Uriegas <eliuriegas@fb.com>

.circleci/config.yml

@@ -164,7 +164,7 @@ jobs:
     - run:
         name: Setup environment
         command: |
-          set -e
+          set -ex
 
           curl -L https://packagecloud.io/circleci/trusty/gpgkey | sudo apt-key add -
           curl -L https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
@@ -206,7 +206,7 @@ jobs:
     - run:
         name: Pull docker image
         command: |
-          set -e
+          set -ex
           export DOCKER_IMAGE=pytorch/conda-cuda
           echo Pulling docker image $DOCKER_IMAGE
           docker pull $DOCKER_IMAGE >/dev/null
@@ -214,7 +214,7 @@ jobs:
     - run:
         name: Build and run tests
         command: |
-          set -e
+          set -ex
 
           cd ${HOME}/project/
 

.circleci/config.yml.in

@@ -164,7 +164,7 @@ jobs:
     - run:
         name: Setup environment
         command: |
-          set -e
+          set -ex
 
           curl -L https://packagecloud.io/circleci/trusty/gpgkey | sudo apt-key add -
           curl -L https://dl.google.com/linux/linux_signing_key.pub | sudo apt-key add -
@@ -206,7 +206,7 @@ jobs:
     - run:
         name: Pull docker image
         command: |
-          set -e
+          set -ex
           export DOCKER_IMAGE=pytorch/conda-cuda
           echo Pulling docker image $DOCKER_IMAGE
           docker pull $DOCKER_IMAGE >/dev/null
@@ -214,7 +214,7 @@ jobs:
     - run:
         name: Build and run tests
         command: |
-          set -e
+          set -ex
 
           cd ${HOME}/project/