Define the pluck as the static equilibrium under a raised-cosine finger load; w = 6 mm, signal scale 2.4 m/s
test 1m 5sRaw log
Runner
Job test on ubuntu-latest Checking out challenges/string at 9d7f24c8 Container started from catthehacker/ubuntu:act-latest ▸ Post actions/setup-python@v5 OCI runtime exec failed: exec failed: unable to start container process: exec: "node": executable file not found in $PATH: unknown The post step completed with exit code 127. Cleaning up the job container
actions/checkout@v40s
▸ actions/checkout@v4 Using mochi's built-in checkout (actions/checkout@v4) challenges/string is already checked out at 9d7f24c8 (mochi checks out before the job starts)
actions/setup-python@v527s
▸ actions/setup-python@v5 Using cached actions/setup-python@v5 (a26af69be951) ▾ Installed versions Version 3.12 was not found in the local cache (node:23) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead. (Use `node --trace-deprecation ...` to show where the warning was created) Version 3.12 is available for downloading Download from "https://github.com/actions/python-versions/releases/download/3.12.14-31661455385/python-3.12.14-linux-24.04-x64.tar.gz" Extract downloaded archive [command]/usr/bin/tar xz --warning=no-unknown-keyword --overwrite -C /mochi/temp/e62c6db9-2b3f-425e-91d1-d623a926d50d -f /mochi/temp/e521478c-dfe5-4426-b242-ff60c16f5cee Execute installation script Check if Python hostedtoolcache folder exist... Creating Python hostedtoolcache folder... Create Python 3.12.14 folder Copy Python binaries to hostedtoolcache folder Create additional symlinks (Required for the UsePythonVersion Azure Pipelines task and the setup-python GitHub Action) Upgrading pip... Collecting pip Downloading pip-26.2.1-py3-none-any.whl.metadata (4.6 kB) Downloading pip-26.2.1-py3-none-any.whl (1.8 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.8/1.8 MB 74.2 MB/s eta 0:00:00 Installing collected packages: pip Attempting uninstall: pip Found existing installation: pip 25.0.1 Uninstalling pip-25.0.1: Successfully uninstalled pip-25.0.1 Successfully installed pip-26.2.1 Create complete file Successfully set up CPython (3.12.14)
Run pip install . pytest22s
▸ Run pip install . pytest Processing ./. Installing build dependencies: started Installing build dependencies: finished with status 'done' Getting requirements to build wheel: started Getting requirements to build wheel: finished with status 'done' Preparing metadata (pyproject.toml): started Preparing metadata (pyproject.toml): finished with status 'done' Collecting pytest Downloading pytest-9.1.1-py3-none-any.whl.metadata (7.6 kB) Collecting numpy (from challenge-tools==0.1.0) Downloading numpy-2.5.3-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl.metadata (6.6 kB) Collecting scipy (from challenge-tools==0.1.0) Downloading scipy-1.18.1-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl.metadata (62 kB) Collecting jsonschema (from challenge-tools==0.1.0) Downloading jsonschema-4.26.0-py3-none-any.whl.metadata (7.6 kB) Collecting h5py (from challenge-tools==0.1.0) Downloading h5py-3.16.0-cp312-cp312-manylinux_2_28_x86_64.whl.metadata (3.0 kB) Collecting iniconfig>=1.0.1 (from pytest) Downloading iniconfig-2.3.0-py3-none-any.whl.metadata (2.5 kB) Collecting packaging>=22 (from pytest) Downloading packaging-26.3-py3-none-any.whl.metadata (3.5 kB) Collecting pluggy<2,>=1.5 (from pytest) Downloading pluggy-1.6.0-py3-none-any.whl.metadata (4.8 kB) Collecting pygments>=2.7.2 (from pytest) Downloading pygments-2.21.0-py3-none-any.whl.metadata (2.5 kB) Collecting attrs>=22.2.0 (from jsonschema->challenge-tools==0.1.0) Downloading attrs-26.1.0-py3-none-any.whl.metadata (8.8 kB) Collecting jsonschema-specifications>=2023.03.6 (from jsonschema->challenge-tools==0.1.0) Downloading jsonschema_specifications-2025.9.1-py3-none-any.whl.metadata (2.9 kB) Collecting referencing>=0.28.4 (from jsonschema->challenge-tools==0.1.0) Downloading referencing-0.37.0-py3-none-any.whl.metadata (2.8 kB) Collecting rpds-py>=0.25.0 (from jsonschema->challenge-tools==0.1.0) Downloading rpds_py-2026.6.3-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl.metadata (4.1 kB) Collecting typing-extensions>=4.4.0 (from referencing>=0.28.4->jsonschema->challenge-tools==0.1.0) Downloading typing_extensions-4.16.0-py3-none-any.whl.metadata (3.3 kB) Downloading pytest-9.1.1-py3-none-any.whl (386 kB) Downloading pluggy-1.6.0-py3-none-any.whl (20 kB) Downloading iniconfig-2.3.0-py3-none-any.whl (7.5 kB) Downloading packaging-26.3-py3-none-any.whl (129 kB) Downloading pygments-2.21.0-py3-none-any.whl (1.3 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.3/1.3 MB 100.1 MB/s 0:00:00 Downloading h5py-3.16.0-cp312-cp312-manylinux_2_28_x86_64.whl (5.4 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 5.4/5.4 MB 158.5 MB/s 0:00:00 Downloading numpy-2.5.3-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl (16.7 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 16.7/16.7 MB 164.0 MB/s 0:00:00 Downloading jsonschema-4.26.0-py3-none-any.whl (90 kB) Downloading attrs-26.1.0-py3-none-any.whl (67 kB) Downloading jsonschema_specifications-2025.9.1-py3-none-any.whl (18 kB) Downloading referencing-0.37.0-py3-none-any.whl (26 kB) Downloading rpds_py-2026.6.3-cp312-cp312-manylinux_2_17_x86_64.manylinux2014_x86_64.whl (366 kB) Downloading typing_extensions-4.16.0-py3-none-any.whl (45 kB) Downloading scipy-1.18.1-cp312-cp312-manylinux_2_27_x86_64.manylinux_2_28_x86_64.whl (35.3 MB) ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 35.3/35.3 MB 13.2 MB/s 0:00:02 Building wheels for collected packages: challenge-tools Building wheel for challenge-tools (pyproject.toml): started Building wheel for challenge-tools (pyproject.toml): finished with status 'done' Created wheel for challenge-tools: filename=challenge_tools-0.1.0-py3-none-any.whl size=16278 sha256=726826f02ea521396eef697005955472f5f6b4fd6cce77d0dbbfead30a07e372 Stored in directory: /tmp/pip-ephem-wheel-cache-3y66xqo4/wheels/23/50/50/a59f7467978e40daa069708eb19040f3b10af7b919dc9b6172 Successfully built challenge-tools Installing collected packages: typing-extensions, rpds-py, pygments, pluggy, packaging, numpy, iniconfig, attrs, scipy, referencing, pytest, h5py, jsonschema-specifications, jsonschema, challenge-tools Successfully installed attrs-26.1.0 challenge-tools-0.1.0 h5py-3.16.0 iniconfig-2.3.0 jsonschema-4.26.0 jsonschema-specifications-2025.9.1 numpy-2.5.3 packaging-26.3 pluggy-1.6.0 pygments-2.21.0 pytest-9.1.1 referencing-0.37.0 rpds-py-2026.6.3 scipy-1.18.1 typing-extensions-4.16.0 WARNING: Running pip as the 'root' user can result in broken permissions and conflicting behaviour with the system package manager, possibly rendering your system unusable. It is recommended to use a virtual environment instead: https://pip.pypa.io/warnings/venv. Use the --root-user-action option if you know what you are doing and want to suppress this warning.
Run pytest -q tests4s
▸ Run pytest -q tests ...... [100%] 6 passed in 0.25s