The process '/usr/share/miniconda3/condabin/mamba' failed with exit code 1

Node.js 20 actions are deprecated. The following actions are running on Node.js 20 and may not work as expected: actions/checkout@v3, conda-incubator/setup-miniconda@v2, styfle/cancel-workflow-action@0.6.0. Actions will be forced to run with Node.js 24 by default starting June 16th, 2026. Node.js 20 will be removed from the runner on September 16th, 2026. Please check if updated versions of these actions are available that support Node.js 24. To opt into Node.js 24 now, set the FORCE_JAVASCRIPT_ACTIONS_TO_NODE24=true environment variable on the runner or in your workflow file. Once Node.js 24 becomes the default, you can temporarily opt out by setting ACTIONS_ALLOW_USE_UNSECURE_NODE_VERSION=true. For more information see: https://github.blog/changelog/2025-09-19-deprecation-of-node-20-on-github-actions-runners/

trace libmamba Configuration not found at '/var/lib/conda/.mambarc' trace libmamba Configuration not found at '/var/lib/conda/condarc.d/' trace libmamba Configuration not found at '/var/lib/conda/condarc' trace libmamba Configuration not found at '/var/lib/conda/.condarc' trace libmamba Configuration not found at '/etc/conda/.mambarc' trace libmamba Configuration not found at '/etc/conda/condarc.d/' trace libmamba Configuration not found at '/etc/conda/condarc' trace libmamba Configuration not found at '/etc/conda/.condarc' trace libmamba Update configurable 'no_env' trace libmamba Compute configurable 'envs_dirs' trace libmamba Compute configurable 'file_specs' debug libmamba No 'variables' specified in YAML spec file '/home/runner/work/dpbench/dpbench/environments/setup-miniconda-patched-conda-linux-sycl.yml' trace libmamba Compute configurable 'spec_file_env_name' trace libmamba Compute configurable 'env_name' trace libmamba Compute configurable 'use_default_prefix_fallback' trace libmamba Compute configurable 'use_root_prefix_fallback' trace libmamba Compute configurable 'use_target_prefix_fallback' trace libmamba Compute configurable 'target_prefix' trace libmamba Get RC files configuration from locations up to TargetPrefix trace libmamba Configuration not found at '/usr/share/miniconda3/envs/build/.mambarc' trace libmamba Configuration not found at '/usr/share/miniconda3/envs/build/condarc.d' trace libmamba Configuration not found at '/usr/share/miniconda3/envs/build/condarc' trace libmamba Configuration not found at '/usr/share/miniconda3/envs/build/.condarc' trace libmamba Configuration not found at '/home/runner/.mambarc' trace libmamba Configuration not found at '/home/runner/.mamba/mambarc.d' trace libmamba Configuration not found at '/home/runner/.mamba/mambarc' trace libmamba Configuration not found at '/home/runner/.mamba/.mambarc' trace libmamba Configuration not found at '/home/runner/.config/mamba/mambarc.d' trace libmamba Configuration not found at '/home/runner/.config/mamba/mambarc' trace libmamba Configuration not found at '/home/runner/.config/mamba/.mambarc' trace libmamba Configuration found at '/home/runner/.condarc' trace libmamba Configuration not found at '/home/runner/.conda/condarc.d' trace libmamba Configuration not found at '/home/runner/.conda/condarc' trace libmamba Configuration not found at '/home/runner/.conda/.condarc' trace libmamba Configuration not found at '/home/runner/.config/conda/condarc.d' trace libmamba Configuration not found at '/home/runner/.config/conda/condarc' trace libmamba Configuration not found at '/home/runner/.config/conda/.condarc' trace libmamba Configuration not found at '/usr/share/miniconda3/.mambarc' trace libmamba Configuration not found at '/usr/share/miniconda3/condarc.d' trace libmamba Configuration not found at '/usr/share/miniconda3/condarc' trace libmamba Configuration found at '/usr/share/miniconda3/.condarc' trace libmamba Configuration not found at '/var/lib/conda/.mambarc' trace libmamba Configuration not found at '/var/lib/conda/condarc.d/' trace libmamba Configuration not found at '/var/lib/conda/condarc' trace libmamba Configuration not found at '/var/lib/conda/.condarc' trace libmamba Configuration not found at '/etc/conda/.mambarc' trace libmamba Configuration not found at '/etc/conda/condarc.d/' trace libmamba Configuration not found at '/etc/conda/condarc' trace libmamba Configuration not found at '/etc/conda/.condarc' trace libmamba Update configurable 'no_env' trace libmamba Compute configurable 'relocate_prefix' trace libmamba Compute configurable 'target_prefix_checks' error libmamba No prefix found at: /usr/share/miniconda3/envs/build error libmamba Environment must first be created with "mamba create -n {env_name} ..." critical libmamba Aborting. info libmamba ****************** Backtrace End ********************

info libmamba ****************** Backtrace Start ****************** debug libmamba Loading configuration trace libmamba Compute configurable 'create_base' trace libmamba Compute configurable 'no_env' trace libmamba Compute configurable 'no_rc' trace libmamba Compute configurable 'rc_files' trace libmamba Compute configurable 'root_prefix' trace libmamba Get RC files configuration from locations up to HomeDir trace libmamba Configuration not found at '/home/runner/.mambarc' trace libmamba Configuration not found at '/home/runner/.mamba/mambarc.d' trace libmamba Configuration not found at '/home/runner/.mamba/mambarc' trace libmamba Configuration not found at '/home/runner/.mamba/.mambarc' trace libmamba Configuration not found at '/home/runner/.config/mamba/mambarc.d' trace libmamba Configuration not found at '/home/runner/.config/mamba/mambarc' trace libmamba Configuration not found at '/home/runner/.config/mamba/.mambarc' trace libmamba Configuration found at '/home/runner/.condarc' trace libmamba Configuration not found at '/home/runner/.conda/condarc.d' trace libmamba Configuration not found at '/home/runner/.conda/condarc' trace libmamba Configuration not found at '/home/runner/.conda/.condarc' trace libmamba Configuration not found at '/home/runner/.config/conda/condarc.d' trace libmamba Configuration not found at '/home/runner/.config/conda/condarc' trace libmamba Configuration not found at '/home/runner/.config/conda/.condarc' trace libmamba Configuration not found at '/usr/share/miniconda3/.mambarc' trace libmamba Configuration not found at '/usr/share/miniconda3/condarc.d' trace libmamba Configuration not found at '/usr/share/miniconda3/condarc' trace libmamba Configuration found at '/usr/share/miniconda3/.condarc'

Mamba support is still experimental and can result in differently solved environments!