Hi,
I am the owner of the FreeAtHome integration which is used for interfacing with the Free@Home Building and Home Automation Solution.
Since a while I am getting a ‘Detected blocking call to load_default_certs with args’ warning. The cause of this warning originates in the Slixmpp library.
Other HomeAssistant integrations are also using this library and a fix for this warning has already been made. Making sure you're not a bot!
This fix is included in slixmpp 1.9.0. Unfortunately this release also contains a new feature 'Rust jid implementation ’ which results in a lot of errors when I adjust the version of slixmpp in the manifest.json.
Unable to install package slixmpp==1.9.0: × Failed to build slixmpp==1.9.0 ├─▶ The build backend returned an error ╰─▶ Call to maturin.build_wheel failed (exit status: 1) [stdout] Running maturin pep517 build-wheel -i /tmp/.tmpOd32qg/builds-v0/.tmpPzPbqI/bin/python --compatibility off Rust not found, installing into a temporary directory cargo 1.88.0 (873a06493 2025-05-10) [stderr] Python reports SOABI: cpython-313-aarch64-linux-musl Computed rustc target triple: aarch64-unknown-linux-musl Installation directory: /root/.cache/puccinialin Downloading rustup-init from https://static.rust-lang.org/rustup/dist/aarch64-unknown-linux-musl/rustup-init Downloading rustup-init: 0%| | 0.00/18.1M [00:00<?, ?B/s] Downloading rustup-init: 5%|▌ | 967k/18.1M [00:00<00:01, 9.59MB/s] Downloading rustup-init: 11%|█ | 1.95M/18.1M [00:00<00:01, 9.67MB/s] Downloading rustup-init: 16%|█▋ | 2.94M/18.1M [00:00<00:01, 9.77MB/s] Downloading rustup-init: 22%|██▏ | 3.95M/18.1M [00:00<00:01, 9.89MB/s] Downloading rustup-init: 27%|██▋ | 4.95M/18.1M [00:00<00:01, 9.92MB/s] Downloading rustup-init: 33%|███▎ | 5.95M/18.1M [00:00<00:01, 9.91MB/s] Downloading rustup-init: 39%|███▊ | 6.97M/18.1M [00:00<00:01, 9.97MB/s] Downloading rustup-init: 44%|████▍ | 7.98M/18.1M [00:00<00:01, 10.0MB/s] Downloading rustup-init: 50%|████▉ | 8.99M/18.1M [00:00<00:00, 9.98MB/s] Downloading rustup-init: 55%|█████▌ | 10.0M/18.1M [00:02<00:04, 1.70MB/s] Downloading rustup-init: 59%|█████▉ | 10.7M/18.1M [00:02<00:03, 2.09MB/s] Downloading rustup-init: 65%|██████▍ | 11.7M/18.1M [00:02<00:02, 2.81MB/s] Downloading rustup-init: 71%|███████ | 12.8M/18.1M [00:02<00:01, 3.68MB/s] Downloading rustup-init: 76%|███████▋ | 13.8M/18.1M [00:03<00:00, 4.59MB/s] Downloading rustup-init: 82%|████████▏ | 14.9M/18.1M [00:03<00:00, 5.55MB/s] Downloading rustup-init: 88%|████████▊ | 15.9M/18.1M [00:03<00:00, 6.49MB/s] Downloading rustup-init: 94%|█████████▎| 16.9M/18.1M [00:03<00:00, 7.32MB/s] Downloading rustup-init: 99%|█████████▉| 18.0M/18.1M [00:03<00:00, 8.06MB/s] Downloading rustup-init: 100%|██████████| 18.1M/18.1M [00:03<00:00, 5.30MB/s] Installing rust to /root/.cache/puccinialin/rustup info: profile set to ‘minimal’ info: default host triple is aarch64-unknown-linux-musl info: syncing channel updates for ‘stable-aarch64-unknown-linux-musl’ info: latest update on 2025-06-26, rust version 1.88.0 (6b00bc388 2025-06-23) info: downloading component ‘cargo’ info: downloading component ‘rust-std’ info: downloading component ‘rustc’ info: installing component ‘cargo’ info: installing component ‘rust-std’ info: installing component ‘rustc’ info: default toolchain set to ‘stable-aarch64-unknown-linux-musl’ Checking if cargo is installed Traceback (most recent call last): File “”, line 11, in wheel_filename = backend.build_wheel(“/tmp/.tmpOd32qg/builds-v0/.tmpHctarP”, {}, None) File “/tmp/.tmpOd32qg/builds-v0/.tmpPzPbqI/lib/python3.13/site-packages/maturin/init.py”, line 133, in build_wheel return _build_wheel(wheel_directory, config_settings, metadata_directory) File “/tmp/.tmpOd32qg/builds-v0/.tmpPzPbqI/lib/python3.13/site-packages/maturin/init.py”, line 114, in _build_wheel result = subprocess.run(command, stdout=subprocess.PIPE, env=_get_env()) File “/usr/local/lib/python3.13/subprocess.py”, line 554, in run with Popen(*popenargs, **kwargs) as process: ~~~~~^^^^^^^^^^^^^^^^^^^^^^ File “/usr/local/lib/python3.13/subprocess.py”, line 1039, in init self._execute_child(args, executable, preexec_fn, close_fds, ~~~~~~~~~~~~~~~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ pass_fds, cwd, env, ^^^^^^^^^^^^^^^^^^^ …<5 lines>… gid, gids, uid, umask, ^^^^^^^^^^^^^^^^^^^^^^ start_new_session, process_group) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File “/usr/local/lib/python3.13/subprocess.py”, line 1969, in _execute_child raise child_exception_type(errno_num, err_msg, err_filename) PermissionError: [Errno 13] Permission denied: ‘maturin’ hint: This usually indicates a problem with the package or the build environment.
Does anybody know what goes wrong with the build environment?