Job results on ubuntu-latest
Checking out challenges/string-solutions at 1ffc2e83
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-solutions is already checked out at 1ffc2e83 (mochi checks out before the job starts)

▸ Check out the challenge repository
Using mochi's built-in checkout (actions/checkout@v4)
Checking out challenges/string@main into challenge-repo

▸ 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/4ad1021b-329c-45bb-8210-0017b34c2bfd -f /mochi/temp/0358103a-777c-47a9-9fe4-8c06cae01eba
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 73.9 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 ./challenge-repo
Processing ./challenge-repo
  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 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 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 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 120.3 MB/s  0:00:00
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 12.3 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=13685 sha256=cb58b4d2d641a5d130dbb69a41f4bb669721be635f7db530dda0316aa3a4ec8c
  Stored in directory: /tmp/pip-ephem-wheel-cache-fjjxka92/wheels/54/ec/ad/cb956d9dad82d9fb8e925ffeffe8c5027b1984413092a885eb
Successfully built challenge-tools
Installing collected packages: typing-extensions, rpds-py, numpy, attrs, scipy, referencing, jsonschema-specifications, jsonschema, challenge-tools

Successfully installed attrs-26.1.0 challenge-tools-0.1.0 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.

▸ Validate submissions
0 problem(s)

▸ Build results site
string-pluck-v1: 12 solutions, reference = modal-series/modal-n1024
  modal-series/modal-n1024                 waveform_l2=0.000e+00  spectrogram_l2=0.000e+00  t=2.3347
  modal-series/modal-n256                  waveform_l2=1.546e-05  spectrogram_l2=1.025e-08  t=0.5586
  fd-second-order/fd-m16                   waveform_l2=1.119e-03  spectrogram_l2=2.027e-04  t=101.051
  fd-second-order/fd-m8                    waveform_l2=4.489e-03  spectrogram_l2=8.089e-04  t=31.794
  modal-series/modal-n64                   waveform_l2=7.874e-03  spectrogram_l2=8.605e-04  t=0.1221
  fd-second-order/fd-m4                    waveform_l2=1.794e-02  spectrogram_l2=3.198e-03  t=11.802
  fd-second-order/fd-m2                    waveform_l2=7.255e-02  spectrogram_l2=1.312e-02  t=4.565
  modal-series/modal-n32                   waveform_l2=1.162e-01  spectrogram_l2=6.103e-02  t=0.0676
  fd-second-order/fd-m1                    waveform_l2=2.776e-01  spectrogram_l2=5.165e-02  t=2.033
  modal-series/modal-n16                   waveform_l2=5.321e-01  spectrogram_l2=4.288e-01  t=0.0647
  modal-series/modal-n8                    waveform_l2=9.499e-01  spectrogram_l2=9.327e-01  t=0.0171
  modal-series/modal-n4                    waveform_l2=9.726e-01  spectrogram_l2=9.625e-01  t=0.0071

▸ actions/configure-pages@v4
Using mochi's built-in configure-pages (actions/configure-pages@v4)
This site will be served at https://string-solutions--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/fd-second-order/
./string-pluck-v1/audio/fd-second-order/fd-m4.wav
./string-pluck-v1/audio/fd-second-order/fd-m2.wav
./string-pluck-v1/audio/fd-second-order/fd-m16.wav
./string-pluck-v1/audio/fd-second-order/fd-m1.wav
./string-pluck-v1/audio/fd-second-order/fd-m8.wav
./string-pluck-v1/audio/modal-series/
./string-pluck-v1/audio/modal-series/modal-n1024.wav
./string-pluck-v1/audio/modal-series/modal-n256.wav
./string-pluck-v1/audio/modal-series/modal-n64.wav
./string-pluck-v1/audio/modal-series/modal-n4.wav
./string-pluck-v1/audio/modal-series/modal-n32.wav
./string-pluck-v1/audio/modal-series/modal-n8.wav
./string-pluck-v1/audio/modal-series/modal-n16.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, 4681216 bytes)

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