Building from Git with 3.14 Linux no-GIL fails

[clin1234]

(venv) @clin1234 ➜ /workspaces/venv $ pip install -U g                                                                  git+https://github.com/pyca/cryptography
Collecting git+https://github.com/pyca/cryptography
  Cloning https://github.com/pyca/cryptography to /tmp/pip-req-build-5219onmx
  Running command git clone --filter=blob:none --quiet https://github.com/pyca/cryptography /tmp/pip-req-build-5219onmx
  Resolved https://github.com/pyca/cryptography to commit e6cf6cab9999c9885155a961a80f91bb7d3158d1
  Installing build dependencies ... done
  Getting requirements to build wheel ... done
  Preparing metadata (pyproject.toml) ... done
Collecting cffi>=1.12 (from cryptography==44.0.0.dev1)
  Using cached cffi-1.17.0-cp314-cp314t-linux_x86_64.whl
Collecting pycparser (from cffi>=1.12->cryptography==44.0.0.dev1)
  Using cached pycparser-2.22-py3-none-any.whl.metadata (943 bytes)
Using cached pycparser-2.22-py3-none-any.whl (117 kB)
Building wheels for collected packages: cryptography
  Building wheel for cryptography (pyproject.toml) ... error
  error: subprocess-exited-with-error
  
  × Building wheel for cryptography (pyproject.toml) did not run successfully.
  │ exit code: 1
  ╰─> [257 lines of output]
      Running `maturin pep517 build-wheel -i /workspaces/venv/bin/python3.14t --compatibility off`
      📦 Including license file "/tmp/pip-req-build-5219onmx/LICENSE"
      📦 Including license file "/tmp/pip-req-build-5219onmx/LICENSE.APACHE"
      📦 Including license file "/tmp/pip-req-build-5219onmx/LICENSE.BSD"
      🍹 Building a mixed python/rust project
      🔗 Found pyo3 bindings with abi3 support for Python ≥ 3.7
      🐍 Not using a specific python interpreter
      📡 Using build options features, locked from pyproject.toml
         Compiling proc-macro2 v1.0.86
         Compiling target-lexicon v0.12.16
         Compiling unicode-ident v1.0.12
         Compiling shlex v1.3.0
         Compiling cc v1.1.12
         Compiling pyo3-build-config v0.22.2
         Compiling quote v1.0.36
         Compiling syn v2.0.74
         Compiling vcpkg v0.2.15
         Compiling once_cell v1.19.0
         Compiling pkg-config v0.3.30
         Compiling openssl-sys v0.9.103
         Compiling libc v0.2.155
         Compiling cfg-if v1.0.0
         Compiling pyo3-ffi v0.22.2
         Compiling pyo3-macros-backend v0.22.2
         Compiling autocfg v1.3.0
         Compiling memoffset v0.9.1
         Compiling openssl v0.10.66
         Compiling foreign-types-shared v0.1.1
         Compiling heck v0.5.0
         Compiling foreign-types v0.3.2
         Compiling asn1_derive v0.17.0
         Compiling openssl-macros v0.1.1
         Compiling pyo3 v0.22.2
         Compiling bitflags v2.6.0
         Compiling pyo3-macros v0.22.2
         Compiling asn1 v0.17.0
         Compiling indoc v2.0.5
         Compiling unindent v0.2.3
         Compiling cryptography-key-parsing v0.1.0 (/tmp/pip-req-build-5219onmx/src/rust/cryptography-key-parsing)
      warning: cryptography-key-parsing@0.1.0: cargo:rustc-check-cfg requires -Zcheck-cfg flag
      warning: cryptography-key-parsing@0.1.0: cargo:rustc-check-cfg requires -Zcheck-cfg flag
         Compiling cryptography-x509 v0.1.0 (/tmp/pip-req-build-5219onmx/src/rust/cryptography-x509)
         Compiling cryptography-cffi v0.1.0 (/tmp/pip-req-build-5219onmx/src/rust/cryptography-cffi)
         Compiling cryptography-openssl v0.1.0 (/tmp/pip-req-build-5219onmx/src/rust/cryptography-openssl)
      warning: cryptography-openssl@0.1.0: cargo:rustc-check-cfg requires -Zcheck-cfg flag
      warning: cryptography-openssl@0.1.0: cargo:rustc-check-cfg requires -Zcheck-cfg flag
      warning: cryptography-openssl@0.1.0: cargo:rustc-check-cfg requires -Zcheck-cfg flag
      warning: cryptography-openssl@0.1.0: cargo:rustc-check-cfg requires -Zcheck-cfg flag
      The following warnings were emitted during compilation:
      
      warning: cryptography-cffi@0.1.0: In file included from /tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c:57:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/Python.h:51:4: error: #error "The limited API is not currently supported in the free-threaded build"
      warning: cryptography-cffi@0.1.0:    51 | #  error "The limited API is not currently supported in the free-threaded build"
      warning: cryptography-cffi@0.1.0:       |    ^~~~~
      warning: cryptography-cffi@0.1.0: In file included from /usr/include/python3.14t/Python.h:68,
      warning: cryptography-cffi@0.1.0:                  from /tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c:57:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/object.h:146:5: error: unknown type name ‘PyMutex’
      warning: cryptography-cffi@0.1.0:   146 |     PyMutex ob_mutex;           // per-object lock
      warning: cryptography-cffi@0.1.0:       |     ^~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/object.h: In function ‘Py_SET_SIZE’:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/object.h:293:5: warning: implicit declaration of function ‘_Py_atomic_store_ssize_relaxed’ [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:   293 |     _Py_atomic_store_ssize_relaxed(&ob->ob_size, size);
      warning: cryptography-cffi@0.1.0:       |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: In file included from /usr/include/python3.14t/Python.h:69,
      warning: cryptography-cffi@0.1.0:                  from /tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c:57:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h: In function ‘Py_REFCNT’:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:84:22: warning: implicit declaration of function ‘_Py_atomic_load_uint32_relaxed’ [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:    84 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&ob->ob_ref_local);
      warning: cryptography-cffi@0.1.0:       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:84:22: warning: conversion to ‘uint32_t’ {aka ‘unsigned int’} from ‘int’ may change the sign of the result [-Wsign-conversion]
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:88:25: warning: implicit declaration of function ‘_Py_atomic_load_ssize_relaxed’ [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:    88 |     Py_ssize_t shared = _Py_atomic_load_ssize_relaxed(&ob->ob_ref_shared);
      warning: cryptography-cffi@0.1.0:       |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h: In function ‘_Py_IsImmortal’:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:101:63: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
      warning: cryptography-cffi@0.1.0:   101 |     return (_Py_atomic_load_uint32_relaxed(&op->ob_ref_local) ==
      warning: cryptography-cffi@0.1.0:       |                                                               ^~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h: In function ‘Py_SET_REFCNT’:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:132:9: warning: implicit declaration of function ‘_Py_IsOwnedByCurrentThread’ [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:   132 |     if (_Py_IsOwnedByCurrentThread(ob)) {
      warning: cryptography-cffi@0.1.0:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h: In function ‘Py_INCREF’:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:227:22: warning: conversion to ‘uint32_t’ {aka ‘unsigned int’} from ‘int’ may change the sign of the result [-Wsign-conversion]
      warning: cryptography-cffi@0.1.0:   227 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&op->ob_ref_local);
      warning: cryptography-cffi@0.1.0:       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:234:9: warning: implicit declaration of function ‘_Py_atomic_store_uint32_relaxed’ [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:   234 |         _Py_atomic_store_uint32_relaxed(&op->ob_ref_local, new_local);
      warning: cryptography-cffi@0.1.0:       |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:237:9: warning: implicit declaration of function ‘_Py_atomic_add_ssize’; did you mean ‘__atomic_add_fetch’? [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:   237 |         _Py_atomic_add_ssize(&op->ob_ref_shared, (1 << _Py_REF_SHARED_SHIFT));
      warning: cryptography-cffi@0.1.0:       |         ^~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0:       |         __atomic_add_fetch
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h: In function ‘Py_DECREF’:
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:321:22: warning: conversion to ‘uint32_t’ {aka ‘unsigned int’} from ‘int’ may change the sign of the result [-Wsign-conversion]
      warning: cryptography-cffi@0.1.0:   321 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&op->ob_ref_local);
      warning: cryptography-cffi@0.1.0:       |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:330:13: warning: implicit declaration of function ‘_Py_MergeZeroLocalRefcount’ [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:   330 |             _Py_MergeZeroLocalRefcount(op);
      warning: cryptography-cffi@0.1.0:       |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0: /usr/include/python3.14t/refcount.h:334:9: warning: implicit declaration of function ‘_Py_DecRefShared’; did you mean ‘_Py_DecRef’? [-Wimplicit-function-declaration]
      warning: cryptography-cffi@0.1.0:   334 |         _Py_DecRefShared(op);
      warning: cryptography-cffi@0.1.0:       |         ^~~~~~~~~~~~~~~~
      warning: cryptography-cffi@0.1.0:       |         _Py_DecRef
      
      error: failed to run custom build command for `cryptography-cffi v0.1.0 (/tmp/pip-req-build-5219onmx/src/rust/cryptography-cffi)`
      
      Caused by:
        process didn't exit successfully: `/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-01ffb5525631fdf0/build-script-build` (exit status: 1)
        --- stdout
        cargo:rustc-check-cfg=cfg(python_implementation, values("CPython", "PyPy"))
        cargo:rerun-if-env-changed=PYO3_PYTHON
        cargo:rerun-if-changed=../../_cffi_src/
        cargo:rerun-if-changed=../../cryptography/__about__.py
        cargo:rustc-cfg=python_implementation="CPython"
        OUT_DIR = Some(/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out)
        TARGET = Some(x86_64-unknown-linux-gnu)
        OPT_LEVEL = Some(3)
        HOST = Some(x86_64-unknown-linux-gnu)
        cargo:rerun-if-env-changed=CC_x86_64-unknown-linux-gnu
        CC_x86_64-unknown-linux-gnu = None
        cargo:rerun-if-env-changed=CC_x86_64_unknown_linux_gnu
        CC_x86_64_unknown_linux_gnu = None
        cargo:rerun-if-env-changed=HOST_CC
        HOST_CC = None
        cargo:rerun-if-env-changed=CC
        CC = None
        cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
        RUSTC_WRAPPER = None
        cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
        CRATE_CC_NO_DEFAULTS = None
        DEBUG = Some(false)
        CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
        cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
        CFLAGS_x86_64-unknown-linux-gnu = None
        cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
        CFLAGS_x86_64_unknown_linux_gnu = None
        cargo:rerun-if-env-changed=HOST_CFLAGS
        HOST_CFLAGS = None
        cargo:rerun-if-env-changed=CFLAGS
        CFLAGS = None
        OUT_DIR = Some(/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out)
        cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
        cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
        CRATE_CC_NO_DEFAULTS = None
        CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
        cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
        CFLAGS_x86_64-unknown-linux-gnu = None
        cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
        CFLAGS_x86_64_unknown_linux_gnu = None
        cargo:rerun-if-env-changed=HOST_CFLAGS
        HOST_CFLAGS = None
        cargo:rerun-if-env-changed=CFLAGS
        CFLAGS = None
        OUT_DIR = Some(/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out)
        cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
        cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
        CRATE_CC_NO_DEFAULTS = None
        CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
        cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
        CFLAGS_x86_64-unknown-linux-gnu = None
        cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
        CFLAGS_x86_64_unknown_linux_gnu = None
        cargo:rerun-if-env-changed=HOST_CFLAGS
        HOST_CFLAGS = None
        cargo:rerun-if-env-changed=CFLAGS
        CFLAGS = None
        OUT_DIR = Some(/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out)
        cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
        cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
        CRATE_CC_NO_DEFAULTS = None
        CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
        cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
        CFLAGS_x86_64-unknown-linux-gnu = None
        cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
        CFLAGS_x86_64_unknown_linux_gnu = None
        cargo:rerun-if-env-changed=HOST_CFLAGS
        HOST_CFLAGS = None
        cargo:rerun-if-env-changed=CFLAGS
        CFLAGS = None
        OUT_DIR = Some(/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out)
        cargo:rerun-if-env-changed=CC_ENABLE_DEBUG_OUTPUT
        cargo:rerun-if-env-changed=CRATE_CC_NO_DEFAULTS
        CRATE_CC_NO_DEFAULTS = None
        CARGO_CFG_TARGET_FEATURE = Some(fxsr,sse,sse2)
        cargo:rerun-if-env-changed=CFLAGS_x86_64-unknown-linux-gnu
        CFLAGS_x86_64-unknown-linux-gnu = None
        cargo:rerun-if-env-changed=CFLAGS_x86_64_unknown_linux_gnu
        CFLAGS_x86_64_unknown_linux_gnu = None
        cargo:rerun-if-env-changed=HOST_CFLAGS
        HOST_CFLAGS = None
        cargo:rerun-if-env-changed=CFLAGS
        CFLAGS = None
        cargo:warning=In file included from /tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c:57:
        cargo:warning=/usr/include/python3.14t/Python.h:51:4: error: #error "The limited API is not currently supported in the free-threaded build"
        cargo:warning=   51 | #  error "The limited API is not currently supported in the free-threaded build"
        cargo:warning=      |    ^~~~~
        cargo:warning=In file included from /usr/include/python3.14t/Python.h:68,
        cargo:warning=                 from /tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c:57:
        cargo:warning=/usr/include/python3.14t/object.h:146:5: error: unknown type name ‘PyMutex’
        cargo:warning=  146 |     PyMutex ob_mutex;           // per-object lock
        cargo:warning=      |     ^~~~~~~
        cargo:warning=/usr/include/python3.14t/object.h: In function ‘Py_SET_SIZE’:
        cargo:warning=/usr/include/python3.14t/object.h:293:5: warning: implicit declaration of function ‘_Py_atomic_store_ssize_relaxed’ [-Wimplicit-function-declaration]
        cargo:warning=  293 |     _Py_atomic_store_ssize_relaxed(&ob->ob_size, size);
        cargo:warning=      |     ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=In file included from /usr/include/python3.14t/Python.h:69,
        cargo:warning=                 from /tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c:57:
        cargo:warning=/usr/include/python3.14t/refcount.h: In function ‘Py_REFCNT’:
        cargo:warning=/usr/include/python3.14t/refcount.h:84:22: warning: implicit declaration of function ‘_Py_atomic_load_uint32_relaxed’ [-Wimplicit-function-declaration]
        cargo:warning=   84 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&ob->ob_ref_local);
        cargo:warning=      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h:84:22: warning: conversion to ‘uint32_t’ {aka ‘unsigned int’} from ‘int’ may change the sign of the result [-Wsign-conversion]
        cargo:warning=/usr/include/python3.14t/refcount.h:88:25: warning: implicit declaration of function ‘_Py_atomic_load_ssize_relaxed’ [-Wimplicit-function-declaration]
        cargo:warning=   88 |     Py_ssize_t shared = _Py_atomic_load_ssize_relaxed(&ob->ob_ref_shared);
        cargo:warning=      |                         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h: In function ‘_Py_IsImmortal’:
        cargo:warning=/usr/include/python3.14t/refcount.h:101:63: warning: comparison of integer expressions of different signedness: ‘int’ and ‘unsigned int’ [-Wsign-compare]
        cargo:warning=  101 |     return (_Py_atomic_load_uint32_relaxed(&op->ob_ref_local) ==
        cargo:warning=      |                                                               ^~
        cargo:warning=/usr/include/python3.14t/refcount.h: In function ‘Py_SET_REFCNT’:
        cargo:warning=/usr/include/python3.14t/refcount.h:132:9: warning: implicit declaration of function ‘_Py_IsOwnedByCurrentThread’ [-Wimplicit-function-declaration]
        cargo:warning=  132 |     if (_Py_IsOwnedByCurrentThread(ob)) {
        cargo:warning=      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h: In function ‘Py_INCREF’:
        cargo:warning=/usr/include/python3.14t/refcount.h:227:22: warning: conversion to ‘uint32_t’ {aka ‘unsigned int’} from ‘int’ may change the sign of the result [-Wsign-conversion]
        cargo:warning=  227 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&op->ob_ref_local);
        cargo:warning=      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h:234:9: warning: implicit declaration of function ‘_Py_atomic_store_uint32_relaxed’ [-Wimplicit-function-declaration]
        cargo:warning=  234 |         _Py_atomic_store_uint32_relaxed(&op->ob_ref_local, new_local);
        cargo:warning=      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h:237:9: warning: implicit declaration of function ‘_Py_atomic_add_ssize’; did you mean ‘__atomic_add_fetch’? [-Wimplicit-function-declaration]
        cargo:warning=  237 |         _Py_atomic_add_ssize(&op->ob_ref_shared, (1 << _Py_REF_SHARED_SHIFT));
        cargo:warning=      |         ^~~~~~~~~~~~~~~~~~~~
        cargo:warning=      |         __atomic_add_fetch
        cargo:warning=/usr/include/python3.14t/refcount.h: In function ‘Py_DECREF’:
        cargo:warning=/usr/include/python3.14t/refcount.h:321:22: warning: conversion to ‘uint32_t’ {aka ‘unsigned int’} from ‘int’ may change the sign of the result [-Wsign-conversion]
        cargo:warning=  321 |     uint32_t local = _Py_atomic_load_uint32_relaxed(&op->ob_ref_local);
        cargo:warning=      |                      ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h:330:13: warning: implicit declaration of function ‘_Py_MergeZeroLocalRefcount’ [-Wimplicit-function-declaration]
        cargo:warning=  330 |             _Py_MergeZeroLocalRefcount(op);
        cargo:warning=      |             ^~~~~~~~~~~~~~~~~~~~~~~~~~
        cargo:warning=/usr/include/python3.14t/refcount.h:334:9: warning: implicit declaration of function ‘_Py_DecRefShared’; did you mean ‘_Py_DecRef’? [-Wimplicit-function-declaration]
        cargo:warning=  334 |         _Py_DecRefShared(op);
        cargo:warning=      |         ^~~~~~~~~~~~~~~~
        cargo:warning=      |         _Py_DecRef
      
        --- stderr
      
      
        error occurred: Command "cc" "-O3" "-ffunction-sections" "-fdata-sections" "-fPIC" "-m64" "-I" "/usr/include" "-I" "/workspaces/venv/include" "-I" "/usr/include/python3.14t" "-Wall" "-Wextra" "-Wconversion" "-Wno-error=sign-conversion" "-Wno-unused-parameter" "-fmacro-prefix-map=/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out=." "-DPy_LIMITED_API=0x030700f0" "-o" "/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/5e6d3db45e392808-_openssl.o" "-c" "/tmp/pip-req-build-5219onmx/src/rust/target/release/build/cryptography-cffi-eec357800f931841/out/_openssl.c" with args cc did not execute successfully (status code exit status: 1).
      
      
      warning: build failed, waiting for other jobs to finish...
      💥 maturin failed
        Caused by: Failed to build a native library through cargo
        Caused by: Cargo build finished with "exit status: 101": `env -u CARGO PYO3_ENVIRONMENT_SIGNATURE="cpython-3.14-64bit" PYO3_PYTHON="/workspaces/venv/bin/python3.14t" PYTHON_SYS_EXECUTABLE="/workspaces/venv/bin/python3.14t" "cargo" "rustc" "--features" "pyo3/abi3-py37" "--message-format" "json-render-diagnostics" "--locked" "--manifest-path" "/tmp/pip-req-build-5219onmx/src/rust/Cargo.toml" "--release" "--lib"`
      Error: command ['maturin', 'pep517', 'build-wheel', '-i', '/workspaces/venv/bin/python3.14t', '--compatibility', 'off'] returned non-zero exit status 1
      [end of output]
  
  note: This error originates from a subprocess, and is likely not a problem with pip.
  ERROR: Failed building wheel for cryptography
Failed to build cryptography
ERROR: ERROR: Failed to build installable wheels for some pyproject.toml based projects (cryptography)```

[alex]

Building with no-GIL support isn't going to work for a little bit, as need support from both cffi and pyo3. Those are tracked:

• Support for new cp313t GIL-free ABI variant python-cffi/cffi#40
• Tracking issue for no-gil/freethreaded work PyO3/pyo3#4265

Since this is a long way down the line, I'm going to close this, as there's no action items for us at the moment.

[nitzmahone]

I've gotten a successful 3.13t build from cryptography 44.0.0.dev1 with a couple of small tweaks to CFFI- force-disabling limited API/abi3 features everywhere, and a bleeding-edge top-of-main build of maturin. The resulting extension still segfaults immediately when built by released pyo3 0.22.2.

#0  __strcmp_evex () at ../sysdeps/x86_64/multiarch/strcmp-evex.S:314
#1  0x00007ffff7a44690 in _PyImport_ResolveNameWithPackageContext (name=0x0) at /usr/src/debug/python3.13-3.13.0~rc1-2.fc40.x86_64/Python/import.c:747
#2  _PyModule_CreateInitialized (module=0x7fffe9b208f8 <cryptography_rust::_rust::_PYO3_DEF+8>, module_api_version=<optimized out>)
    at /usr/src/debug/python3.13-3.13.0~rc1-2.fc40.x86_64/Objects/moduleobject.c:226
#3  0x00007fffe984cfd3 in pyo3::sync::GILOnceCell<T>::init ()
   from /home/mdavis/projects/cryptography/src/cryptography/hazmat/bindings/_rust.cpython-313t-x86_64-linux-gnu.so
#4  0x00007fffe99caf96 in pyo3::impl_::pymodule::ModuleDef::make_module ()
   from /home/mdavis/projects/cryptography/src/cryptography/hazmat/bindings/_rust.cpython-313t-x86_64-linux-gnu.so
#5  0x00007fffe992aec1 in core::ops::function::FnOnce::call_once ()

Bleeding-edge pyo3 0.23.0-dev supports an UNSAFE_PYO3_BUILD_FREE_THREADED=1 flag that sounds promising, but it looks like it's not quite all working yet, eg:

error[E0277]: can't compare `pyo3::Bound<'_, PyInt>` with `pyo3::Bound<'_, PyInt>`
   --> src/backend/dh.rs:431:31
    |
431 |         Ok(self.x.bind(py).eq(other.x.bind(py))?
    |                            -- ^^^^^^^^^^^^^^^^ no implementation for `pyo3::Bound<'_, PyInt> == pyo3::Bound<'_, PyInt>`
    |                            |
    |                            required by a bound introduced by this call
    |
    = help: the trait `PartialEq<pyo3::Bound<'_, PyInt>>` is not implemented for `pyo3::Bound<'_, PyInt>`
    = help: the following other types implement trait `PartialEq<Rhs>`:
              <&pyo3::Bound<'_, PyBool> as PartialEq<bool>>
              <&pyo3::Bound<'_, PyBytes> as PartialEq<[u8]>>
              <&pyo3::Bound<'_, PyFloat> as PartialEq<f32>>
              <&pyo3::Bound<'_, PyFloat> as PartialEq<f64>>
              <&pyo3::Bound<'_, PyString> as PartialEq<str>>
              <pyo3::Bound<'_, PyBool> as PartialEq<&bool>>
              <pyo3::Bound<'_, PyBool> as PartialEq<bool>>
              <pyo3::Bound<'_, PyBytes> as PartialEq<&[u8]>>
            and 19 others

error[E0277]: the `?` operator can only be applied to values that implement `Try`
   --> src/backend/dh.rs:431:12
    |
431 |         Ok(self.x.bind(py).eq(other.x.bind(py))?
    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
    |
    = help: the trait `Try` is not implemented for `bool`

Anyway, things seem to be getting a lot closer to working- FWIW, CFFI is passing nearly all of its test suite under 3.13t once we force-disabled the various places it sneaks in limited API enablement, so at least the very basic stuff is somewhat functional.

[alex]

I would not expect anything to work until the relevant tasks in the pyo3 issue are complete.

I would not consider things building, or even the tests passing, as proof that things are sound. Neither of these actually perform multi-threaded operations.

[nitzmahone]

Oh definitely- the really hard part starts once everything actually does build and run 😆 - still nice to see things falling in line to at least get us to the edge of the cliff we're trying to hurl ourselves over.