PYTHON-2339 Build manylinux2014_aarch64/ppc64le/s390x releases (#478)

Author: ShaneHarvey

.evergreen/build-manylinux.sh

@@ -8,16 +8,10 @@ images=(quay.io/pypa/manylinux1_x86_64:2020-03-20-2fda31c \
         quay.io/pypa/manylinux1_x86_64 \
         quay.io/pypa/manylinux1_i686 \
         quay.io/pypa/manylinux2014_x86_64 \
-        quay.io/pypa/manylinux2014_i686)
-# aarch64/ppc64le/s390x work on macOS locally but not on linux in evergreen:
-# [2020/07/23 00:24:00.482] + docker run --rm -v /data/mci/cd100cec6341abda533450fb3f2fab99/src:/pymongo quay.io/pypa/manylinux2014_aarch64 /pymongo/.evergreen/build-manylinux-internal.sh
-# [2020/07/23 00:24:01.186] standard_init_linux.go:211: exec user process caused "exec format error"
-#
-# Could be related to:
-# https://github.com/pypa/manylinux/issues/410
-#        quay.io/pypa/manylinux2014_aarch64 \
-#        quay.io/pypa/manylinux2014_ppc64le \
-#        quay.io/pypa/manylinux2014_s390x)
+        quay.io/pypa/manylinux2014_i686 \
+        quay.io/pypa/manylinux2014_aarch64 \
+        quay.io/pypa/manylinux2014_ppc64le \
+        quay.io/pypa/manylinux2014_s390x)
 
 for image in "${images[@]}"; do
   docker pull $image

.evergreen/config.yml

@@ -1605,6 +1605,12 @@ axes:
         batchtime: 10080  # 7 days
         variables:
           python3_binary: python3
+      - id: ubuntu-20.04
+        display_name: "Ubuntu 20.04"
+        run_on: ubuntu2004-small
+        batchtime: 10080  # 7 days
+        variables:
+          python3_binary: python3
       - id: ubuntu1604-arm64-small
         display_name: "Ubuntu 16.04 (ARM64)"
         run_on: ubuntu1604-arm64-small
@@ -2557,7 +2563,7 @@ buildvariants:
 
 - matrix_name: "Release"
   matrix_spec:
-    platform: [ubuntu-18.04, windows-64-vsMulti-small]
+    platform: [ubuntu-20.04, windows-64-vsMulti-small]
   display_name: "Release ${platform}"
   tasks:
     - name: "release"