Bug#1017627: python-cartopy: FTBFS on riscv64

[Eric Long]

Source: python-cartopy
Version: 0.20.3+dfsg-1+b1
Severity: serious
Tags: ftbfs
Justification: fails to build from source (but built successfully in the past)
X-Debbugs-Cc: i at hack3r.moe

Dear Maintainer,

This package's newest version (0.20.3+dfsg-1+b1) won't build on riscv64 due to
reproducible segmentation fault on tests (Tested myself too):

https://buildd.debian.org/status/fetch.php?pkg=python-cartopy&arch=riscv64&ver=0.20.3%2Bdfsg-1%2Bb1&stamp=1659870003&raw=0
https://buildd.debian.org/status/fetch.php?pkg=python-cartopy&arch=riscv64&ver=0.20.3%2Bdfsg-1%2Bb1&stamp=1658591126&raw=0

However, the previous version (0.20.3+dfsg-1) builds just fine on riscv64,
despite having (nearly) identical source code.

Cheers,
Eric

-- System Information:
Debian Release: bookworm/sid
  APT prefers unreleased
  APT policy: (500, 'unreleased'), (500, 'unstable')
merged-usr: no
Architecture: riscv64

Kernel: Linux 5.18.0-4-riscv64 (SMP w/8 CPU threads)
Locale: LANG=zh_CN.UTF-8, LC_CTYPE=zh_CN.UTF-8 (charmap=UTF-8), LANGUAGE not set
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)
LSM: AppArmor: enabled