2025-11-25T08:43:48,503 Created temporary directory: /tmp/pip-ephem-wheel-cache-73gqixzn 2025-11-25T08:43:48,504 Created temporary directory: /tmp/pip-build-tracker-9yesxbz6 2025-11-25T08:43:48,505 Initialized build tracking at /tmp/pip-build-tracker-9yesxbz6 2025-11-25T08:43:48,505 Created build tracker: /tmp/pip-build-tracker-9yesxbz6 2025-11-25T08:43:48,506 Entered build tracker: /tmp/pip-build-tracker-9yesxbz6 2025-11-25T08:43:48,507 Created temporary directory: /tmp/pip-wheel-jd6xeccu 2025-11-25T08:43:48,510 DEPRECATION: --no-binary currently disables reading from the cache of locally built wheels. In the future --no-binary will not influence the wheel cache. pip 23.1 will enforce this behaviour change. A possible replacement is to use the --no-cache-dir option. You can use the flag --use-feature=no-binary-enable-wheel-cache to test the upcoming behaviour. Discussion can be found at https://github.com/pypa/pip/issues/11453 2025-11-25T08:43:48,512 Created temporary directory: /tmp/pip-ephem-wheel-cache-_f1eqsce 2025-11-25T08:43:48,533 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple 2025-11-25T08:43:48,537 2 location(s) to search for versions of opentelemetry-instrumentation-writer: 2025-11-25T08:43:48,537 * https://pypi.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,537 * https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,538 Fetching project page and analyzing links: https://pypi.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,538 Getting page https://pypi.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,540 Found index url https://pypi.org/simple 2025-11-25T08:43:48,680 Fetched page https://pypi.org/simple/opentelemetry-instrumentation-writer/ as application/vnd.pypi.simple.v1+json 2025-11-25T08:43:48,686 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/a4/72/a8472f7b98c155a856ae5dc3e469129ed8ef1be3c91d5bb7f199748f6fcd/opentelemetry_instrumentation_writer-0.46.2-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,687 Found link https://files.pythonhosted.org/packages/fd/79/b4b02491634badf322ec8ab933ee244015d4023a77b9609280a4c756bfc8/opentelemetry_instrumentation_writer-0.46.2.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.46.2 2025-11-25T08:43:48,687 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/0a/ec/c44fea86cd4f12e841f97b6d6d2a5b050f1c097ff1a3bd546a58a2ad7a44/opentelemetry_instrumentation_writer-0.47.0-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,689 Found link https://files.pythonhosted.org/packages/89/11/2eb8e97c597a36727a181bdce095ab4a956a7f57402f1f43cfe99ae6a405/opentelemetry_instrumentation_writer-0.47.0.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.47.0 2025-11-25T08:43:48,689 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/ee/7b/8b823bd430146d64950780ca10c3a281b3781a04ed4a45ba39febde51679/opentelemetry_instrumentation_writer-0.47.1-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,690 Found link https://files.pythonhosted.org/packages/d7/54/3d7c00dfd479ffa2313327facc6b26ad71a9fb847f566df33eb8f8932de4/opentelemetry_instrumentation_writer-0.47.1.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.47.1 2025-11-25T08:43:48,691 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/b4/ec/07f0b5b39e9cc073deff2f1339eefc8038b09fa8f711cec9f1db66f448fe/opentelemetry_instrumentation_writer-0.47.2-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,692 Found link https://files.pythonhosted.org/packages/5f/65/e1e92edd104d614cfbe9d224eae054b178968990af6cb4d63591fb14fc4e/opentelemetry_instrumentation_writer-0.47.2.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.47.2 2025-11-25T08:43:48,693 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/4b/62/dfe46571e4d71beec6b35ac58152755aeef31094efb5a3a451e8d816e6a5/opentelemetry_instrumentation_writer-0.47.3-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,694 Found link https://files.pythonhosted.org/packages/ec/61/37dac452f7f9fed386cef9551d8ff5408bf213bc73294a5ea8a89bebf582/opentelemetry_instrumentation_writer-0.47.3.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.47.3 2025-11-25T08:43:48,694 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/cb/81/272aacd7f943a82b506499cec943a3b94f8132632ec8ee266c8734d46b42/opentelemetry_instrumentation_writer-0.47.4-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,695 Found link https://files.pythonhosted.org/packages/6d/18/6f14e2490ddab39188c9a21146f30c99ebf4ae305214e2bc6e6df8232248/opentelemetry_instrumentation_writer-0.47.4.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.47.4 2025-11-25T08:43:48,696 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/dc/27/adabb41cc991e7b83c23772b1f520ac50be64f25c3f13a9a4887485157b0/opentelemetry_instrumentation_writer-0.47.5-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,697 Found link https://files.pythonhosted.org/packages/5f/08/5418adb9ae9263e9d86d7204bde812a0ca0404a0ed417a8125030e08b322/opentelemetry_instrumentation_writer-0.47.5.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.47.5 2025-11-25T08:43:48,697 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/26/4d/a8392250f2d809538d06c878da55e18cee3e0130b93c87fb718651219581/opentelemetry_instrumentation_writer-0.48.0-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,698 Found link https://files.pythonhosted.org/packages/c9/94/3a32044df4ff94dcd018a4d552e63565be1a80e067c9d80dcde562b18e5f/opentelemetry_instrumentation_writer-0.48.0.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.48.0 2025-11-25T08:43:48,699 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/8b/d9/d30e0967232032f671448ba51694f53b16e6b5d17de5b79f98ffb925be04/opentelemetry_instrumentation_writer-0.48.1-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,700 Found link https://files.pythonhosted.org/packages/58/1f/76da80db293c778d9fed2a82ba1dc57bf0e2e917508e6da5e2ae3a0dcbfd/opentelemetry_instrumentation_writer-0.48.1.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.48.1 2025-11-25T08:43:48,701 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/0c/d9/f9b8da6e7708650fdecddc322cf1bea34bacb67385c7197fd990359eea34/opentelemetry_instrumentation_writer-0.48.2-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,702 Found link https://files.pythonhosted.org/packages/57/0d/98a7e785d724e1a0a4211e28716c21d8b98d98b676ebcf401b9d3a869de4/opentelemetry_instrumentation_writer-0.48.2.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.48.2 2025-11-25T08:43:48,702 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/cd/75/de57bc86ce650fe2f9e87a9e860095d574a9a8d3f7519cd68c9cab43e903/opentelemetry_instrumentation_writer-0.49.0-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,703 Found link https://files.pythonhosted.org/packages/eb/9c/f98ebc8179609b3a4302fe31fe1f6675578eae0c68d758ae7cd35a60b5cd/opentelemetry_instrumentation_writer-0.49.0.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.49.0 2025-11-25T08:43:48,704 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/a9/a7/8a5f9797af093d51a96e8922d0fc7045a8e1ba25d373f921010b99649e50/opentelemetry_instrumentation_writer-0.49.1-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,705 Found link https://files.pythonhosted.org/packages/2d/f2/f93e56671c9f66429fd01b25b3ef2df1c74a3426356ab116579220e841bc/opentelemetry_instrumentation_writer-0.49.1.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.49.1 2025-11-25T08:43:48,705 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://files.pythonhosted.org/packages/74/73/224e834261537707ffac188d84d80e690f5fbbb7e5ce36e4e65dfd09cbfd/opentelemetry_instrumentation_writer-0.49.2-py3-none-any.whl (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10) 2025-11-25T08:43:48,706 Found link https://files.pythonhosted.org/packages/6d/10/d546cb2f17f208109f2c6f5b5827826ef143ecf88b52ecf373dbc90cbfe0/opentelemetry_instrumentation_writer-0.49.2.tar.gz (from https://pypi.org/simple/opentelemetry-instrumentation-writer/) (requires-python:<4,>=3.10), version: 0.49.2 2025-11-25T08:43:48,707 Fetching project page and analyzing links: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,708 Getting page https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,709 Found index url https://www.piwheels.org/simple 2025-11-25T08:43:48,911 Fetched page https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/ as text/html 2025-11-25T08:43:48,915 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.49.1-py3-none-any.whl#sha256=8b68bd28714f908024a75da194e79d951a23a0e31cf58b07bea3b729a430b2f4 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,916 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.49.0-py3-none-any.whl#sha256=c5ef972144893df6c462d8267ba6243fed404a68d1db1448da994b2c603a00ef (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,916 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.48.2-py3-none-any.whl#sha256=5d1fbc881b346034649504a94552f55e4fea09ba9aae69e8bfa0a97afc6f81c2 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,917 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.48.1-py3-none-any.whl#sha256=3549d40a95580d489fe7680d9a90206d822f08214b7b37786eae38c0b83b370b (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,918 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.48.0-py3-none-any.whl#sha256=12b7e6effdf24bea96ce6418b0bf08f2436196e4a032647c4eae49f2a1dc928b (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,918 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.47.5-py3-none-any.whl#sha256=1c42cbd72c6c4f4c38a66a0b297b1002ee8af13f5193f442d4b2d2bfe7779af2 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,919 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.47.4-py3-none-any.whl#sha256=5f91be8e058c1bd4b6f1b1896aa4af24aa9df93290ced21ea48a310f0c7733b0 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,919 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.47.3-py3-none-any.whl#sha256=49d4423694e61990c3fac5341b9688d3ed49140ee622a4f708a58172ceb01035 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,920 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.47.2-py3-none-any.whl#sha256=36ea845836eba3ce99fb4c1bf7f166e029d8c04be7a10b5cb533324ae3b44d45 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,920 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.47.1-py3-none-any.whl#sha256=475d8f5653f67a5715f2df795b3c34beb9b858dab452a0dde7bb4d0ea43978b6 (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,921 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.47.0-py3-none-any.whl#sha256=7796cf164b40e233dc2d3baf11c5ea1bdc367ce96eb4e2398b8ba65be6b028ca (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,921 Skipping link: No binaries permitted for opentelemetry-instrumentation-writer: https://archive1.piwheels.org/simple/opentelemetry-instrumentation-writer/opentelemetry_instrumentation_writer-0.46.2-py3-none-any.whl#sha256=2089c050b0adbbf34d6922eb16c9b920a5a1b7d33c060966d31806a96dad447f (from https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/) (requires-python:>=3.10,<4) 2025-11-25T08:43:48,922 Skipping link: not a file: https://www.piwheels.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,923 Skipping link: not a file: https://pypi.org/simple/opentelemetry-instrumentation-writer/ 2025-11-25T08:43:48,943 Given no hashes to check 1 links for project 'opentelemetry-instrumentation-writer': discarding no candidates 2025-11-25T08:43:48,962 Collecting opentelemetry-instrumentation-writer==0.49.2 2025-11-25T08:43:48,965 Created temporary directory: /tmp/pip-unpack-v8blzvlz 2025-11-25T08:43:49,184 Downloading opentelemetry_instrumentation_writer-0.49.2.tar.gz (9.0 kB) 2025-11-25T08:43:49,212 Added opentelemetry-instrumentation-writer==0.49.2 from https://files.pythonhosted.org/packages/6d/10/d546cb2f17f208109f2c6f5b5827826ef143ecf88b52ecf373dbc90cbfe0/opentelemetry_instrumentation_writer-0.49.2.tar.gz to build tracker '/tmp/pip-build-tracker-9yesxbz6' 2025-11-25T08:43:49,216 Created temporary directory: /tmp/pip-build-env-ctrchhch 2025-11-25T08:43:49,221 Installing build dependencies: started 2025-11-25T08:43:49,222 Running command pip subprocess to install build dependencies 2025-11-25T08:43:50,375 Using pip 23.0.1 from /usr/lib/python3/dist-packages/pip (python 3.11) 2025-11-25T08:43:50,965 DEPRECATION: --no-binary currently disables reading from the cache of locally built wheels. In the future --no-binary will not influence the wheel cache. pip 23.1 will enforce this behaviour change. A possible replacement is to use the --no-cache-dir option. You can use the flag --use-feature=no-binary-enable-wheel-cache to test the upcoming behaviour. Discussion can be found at https://github.com/pypa/pip/issues/11453 2025-11-25T08:43:50,989 Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple 2025-11-25T08:43:51,509 Collecting poetry-core 2025-11-25T08:43:51,543 Using cached https://www.piwheels.org/simple/poetry-core/poetry_core-2.2.1-py3-none-any.whl (338 kB) 2025-11-25T08:43:54,037 Installing collected packages: poetry-core 2025-11-25T08:43:55,316 Successfully installed poetry-core-2.2.1 2025-11-25T08:43:55,545 Installing build dependencies: finished with status 'done' 2025-11-25T08:43:55,552 Getting requirements to build wheel: started 2025-11-25T08:43:55,553 Running command Getting requirements to build wheel 2025-11-25T08:43:56,022 Getting requirements to build wheel: finished with status 'done' 2025-11-25T08:43:56,026 Created temporary directory: /tmp/pip-modern-metadata-37bq3unj 2025-11-25T08:43:56,028 Preparing metadata (pyproject.toml): started 2025-11-25T08:43:56,030 Running command Preparing metadata (pyproject.toml) 2025-11-25T08:43:56,729 Preparing metadata (pyproject.toml): finished with status 'done' 2025-11-25T08:43:56,733 Source in /tmp/pip-wheel-jd6xeccu/opentelemetry-instrumentation-writer_851e2255cd594d259593196856cb17f3 has version 0.49.2, which satisfies requirement opentelemetry-instrumentation-writer==0.49.2 from https://files.pythonhosted.org/packages/6d/10/d546cb2f17f208109f2c6f5b5827826ef143ecf88b52ecf373dbc90cbfe0/opentelemetry_instrumentation_writer-0.49.2.tar.gz 2025-11-25T08:43:56,734 Removed opentelemetry-instrumentation-writer==0.49.2 from https://files.pythonhosted.org/packages/6d/10/d546cb2f17f208109f2c6f5b5827826ef143ecf88b52ecf373dbc90cbfe0/opentelemetry_instrumentation_writer-0.49.2.tar.gz from build tracker '/tmp/pip-build-tracker-9yesxbz6' 2025-11-25T08:43:56,740 Created temporary directory: /tmp/pip-unpack-jz2qp4c2 2025-11-25T08:43:56,740 Building wheels for collected packages: opentelemetry-instrumentation-writer 2025-11-25T08:43:56,746 Created temporary directory: /tmp/pip-wheel-gmduhzij 2025-11-25T08:43:56,746 Destination directory: /tmp/pip-wheel-gmduhzij 2025-11-25T08:43:56,749 Building wheel for opentelemetry-instrumentation-writer (pyproject.toml): started 2025-11-25T08:43:56,750 Running command Building wheel for opentelemetry-instrumentation-writer (pyproject.toml) 2025-11-25T08:43:57,480 Building wheel for opentelemetry-instrumentation-writer (pyproject.toml): finished with status 'done' 2025-11-25T08:43:57,485 Created wheel for opentelemetry-instrumentation-writer: filename=opentelemetry_instrumentation_writer-0.49.2-py3-none-any.whl size=11554 sha256=9d83f7d3efbb7cab6daa9bc553ccb9daa385e54e69a68a6525851dbccfd47979 2025-11-25T08:43:57,486 Stored in directory: /tmp/pip-ephem-wheel-cache-_f1eqsce/wheels/cc/21/06/64fafb297ec08758b20551cdaf30a1963f0d711d843d4a52d1 2025-11-25T08:43:57,495 Successfully built opentelemetry-instrumentation-writer 2025-11-25T08:43:57,499 Removed build tracker: '/tmp/pip-build-tracker-9yesxbz6'