Fix 32bit CI

.circleci/config.yml

@@ -11,6 +11,7 @@ commands:
             sudo apt-get update
             sudo apt-get install -y ninja-build libcunit1-dev valgrind clang doxygen python3-pip
             # Install meson to the system packages so we can run it as root
+            pip install --upgrade pip wheel
             sudo pip install meson
             pip install numpy==1.18.5
             pip install --user -r python/requirements/CI-complete/requirements.txt
@@ -153,7 +154,7 @@ commands:
 jobs:
   build:
     docker:
-      - image: cimg/python:3.7
+      - image: cimg/python:3.10
     working_directory: /home/circleci/tskit
     steps:
       - checkout
@@ -162,10 +163,10 @@ jobs:
           # It's sometimes necessary to nuke the cache, and the simplest
           # way to do it is to change the key. We can increment this
           # version number when we want to do this.
-          key: tskit-{{ .Branch }}-v6
+          key: tskit-{{ .Branch }}-v8
       - setup
       - save_cache:
-          key: tskit-{{ .Branch }}-v6
+          key: tskit-{{ .Branch }}-v8
           paths:
             - "/home/circleci/.local"
       - compile_and_test
@@ -194,16 +195,16 @@ jobs:
 
   build-32:
     docker:
-      - image: tskitimages/testing-32bit:2.0
+      - image: tskitimages/testing-32bit:3.0
     working_directory: /home/circleci/tskit
     steps:
       - checkout
       - run: sudo chown -R circleci:circleci *
       - restore_cache:
-          key: tskit-32-{{ .Branch }}-v7
+          key: tskit-32-{{ .Branch }}-v8
       - setup
       - save_cache:
-          key: tskit-32-{{ .Branch }}-v7
+          key: tskit-32-{{ .Branch }}-v8
           paths:
             - "/home/circleci/.local"
       # We need to install curl for the codecov upload.

.circleci/images/32bit/Dockerfile

@@ -1,4 +1,4 @@
-FROM i386/python:3.7-slim-bullseye
+FROM i386/python:3.10-slim-bullseye
 
 RUN apt-get update && apt-get install -y sudo rustc cargo libhdf5-dev libgsl-dev pkg-config libssl-dev
 RUN adduser --disabled-password --gecos "" circleci

python/requirements/CI-complete/requirements.txt

@@ -3,7 +3,7 @@ black==21.12b0
 coverage==6.5.0
 dendropy==4.5.2
 flake8==5.0.4
-h5py==3.7.0
+h5py==3.9.0
 jsonschema==4.16.0
 kastore==0.3.2
 lshmm==0.0.4