Job results 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@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@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/0e56bba3-81f9-4bbb-b45c-a2639e8099da -f /mochi/temp/e87421e7-63c2-4b8a-b585-3df59a26b6ae
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 92.7 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 .
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 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 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 h5py-3.16.0-cp312-cp312-manylinux_2_28_x86_64.whl (5.4 MB)
   ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 5.4/5.4 MB 124.9 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 55.0 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 13.8 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=fbecbadba6a4e704a70a42ee2db59477b04d76760f5a82486accd0c71f0a30af
  Stored in directory: /tmp/pip-ephem-wheel-cache-m9n_z0oo/wheels/23/50/50/a59f7467978e40daa069708eb19040f3b10af7b919dc9b6172
Successfully built challenge-tools
Installing collected packages: typing-extensions, rpds-py, numpy, attrs, scipy, referencing, h5py, jsonschema-specifications, jsonschema, challenge-tools

Successfully installed attrs-26.1.0 challenge-tools-0.1.0 h5py-3.16.0 jsonschema-4.26.0 jsonschema-specifications-2025.9.1 numpy-2.5.3 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.

▸ Fetch the registered solution repositories
challenges/string-solutions@main -> clones/string-solutions (0e42022157)

▸ Build the comparison site
string-pluck-v1: 12 solutions, reference = string-solutions/modal-series/modal-n1024
  string-solutions/modal-series/modal-n1024          waveform_l2=0.000e+00  spectrogram_l2=0.000e+00  t=2.3304
  string-solutions/modal-series/modal-n256           waveform_l2=1.037e-06  spectrogram_l2=5.628e-10  t=0.5771
  string-solutions/fd-second-order/fd-m16            waveform_l2=1.320e-04  spectrogram_l2=1.830e-05  t=111.127
  string-solutions/fd-second-order/fd-m8             waveform_l2=5.295e-04  spectrogram_l2=7.296e-05  t=33.202
  string-solutions/fd-second-order/fd-m4             waveform_l2=2.116e-03  spectrogram_l2=2.882e-04  t=11.354
  string-solutions/modal-series/modal-n64            waveform_l2=3.219e-03  spectrogram_l2=3.154e-04  t=0.1264
  string-solutions/fd-second-order/fd-m2             waveform_l2=8.528e-03  spectrogram_l2=1.182e-03  t=4.455
  string-solutions/modal-series/modal-n32            waveform_l2=1.791e-02  spectrogram_l2=6.947e-03  t=0.0714
  string-solutions/fd-second-order/fd-m1             waveform_l2=3.189e-02  spectrogram_l2=4.550e-03  t=2.012
  string-solutions/modal-series/modal-n16            waveform_l2=4.462e-02  spectrogram_l2=2.968e-02  t=0.0384
  string-solutions/modal-series/modal-n8             waveform_l2=1.482e-01  spectrogram_l2=1.338e-01  t=0.0192
  string-solutions/modal-series/modal-n4             waveform_l2=1.876e-01  spectrogram_l2=1.750e-01  t=0.0079

▸ actions/configure-pages@v4
Using mochi's built-in configure-pages (actions/configure-pages@v4)
This site will be served at https://string--challenges.vault1-sites.magland.org/

▸ actions/upload-pages-artifact@v3
Using cached actions/upload-pages-artifact@v3 (56afc609e742)
▸ Archive artifact
▾ Archive artifact
./
./string-pluck-v1/
./string-pluck-v1/audio/
./string-pluck-v1/audio/string-solutions/
./string-pluck-v1/audio/string-solutions/modal-series/
./string-pluck-v1/audio/string-solutions/modal-series/modal-n16.wav
./string-pluck-v1/audio/string-solutions/modal-series/modal-n256.wav
./string-pluck-v1/audio/string-solutions/modal-series/modal-n1024.wav
./string-pluck-v1/audio/string-solutions/modal-series/modal-n32.wav
./string-pluck-v1/audio/string-solutions/modal-series/modal-n64.wav
./string-pluck-v1/audio/string-solutions/modal-series/modal-n4.wav
./string-pluck-v1/audio/string-solutions/modal-series/modal-n8.wav
./string-pluck-v1/audio/string-solutions/fd-second-order/
./string-pluck-v1/audio/string-solutions/fd-second-order/fd-m2.wav
./string-pluck-v1/audio/string-solutions/fd-second-order/fd-m1.wav
./string-pluck-v1/audio/string-solutions/fd-second-order/fd-m16.wav
./string-pluck-v1/audio/string-solutions/fd-second-order/fd-m8.wav
./string-pluck-v1/audio/string-solutions/fd-second-order/fd-m4.wav
./string-pluck-v1/results.json
./string-pluck-v1/index.html
./index.html
▸ Upload artifact
Using mochi's built-in upload-artifact (actions/upload-artifact@v4)
Uploading artifact github-pages (1 file, 4701696 bytes)

▸ actions/deploy-pages@v4
Using mochi's built-in deploy-pages (actions/deploy-pages@v4)
Deployed 15 files to https://string--challenges.vault1-sites.magland.org/