Over the last month, the 'python-matplotlib' build on armhf has failed non-deterministically 4 times due to timeout (1 hour of silence) in the same place:
--8<---------------cut here---------------start------------->8--- phase `install' succeeded after 71.4 seconds starting phase `install-doc' Running Sphinx v1.2.3 Initializing GitHub plugin loading pickled environment... failed: [Errno 2] No such file or directory: '/tmp/nix-build-python-matplotlib-1.4.3.drv-0/matplotlib-1.4.3/doc/build/doctrees/environment.pickle' [autosummary] generating autosummary for: api/afm_api.rst, api/animation_api.rst, api/api_changes.rst, api/artist_api.rst, api/axes_api.rst, api/axis_api.rst, api/backend_bases_api.rst, api/backend_gtkagg_api.rst, api/backend_pdf_api.rst, api/backend_qt4agg_api.rst, ..., users/recipes.rst, users/screenshots.rst, users/shell.rst, users/style_sheets.rst, users/text_intro.rst, users/text_props.rst, users/tight_layout_guide.rst, users/transforms_tutorial.rst, users/usetex.rst, users/whats_new.rst Failed to import 'matplotlib.backends.backend_wxagg': no module named matplotlib.backends.backend_wxagg Failed to import 'matplotlib.backends.backend_qt4agg': no module named matplotlib.backends.backend_qt4agg animation, api, axes_grid, color, event_handling, images_contours_and_fields, lines_bars_and_markers, misc, mplot3d, pie_and_polar_charts, pylab_examples, shapes_and_collections, showcase, specialty_plots, statistics, style_sheets, subplots_axes_and_figures, tests, text_labels_and_annotations, ticks_and_spines, units, user_interfaces, widgets, building [html]: targets for 127 source files that are out of date updating environment: 607 added, 0 changed, 0 removed reading sources... [ 0%] api/afm_api reading sources... [ 0%] api/animation_api reading sources... [ 0%] api/api_changes reading sources... [ 0%] api/artist_api reading sources... [ 0%] api/axes_api reading sources... [ 0%] api/axis_api reading sources... [ 1%] api/backend_bases_api reading sources... [ 1%] api/backend_gtkagg_api reading sources... [ 1%] api/backend_pdf_api reading sources... [ 1%] api/backend_qt4agg_api reading sources... [ 1%] api/backend_wxagg_api reading sources... [ 1%] api/cbook_api reading sources... [ 2%] api/cm_api reading sources... [ 2%] api/collections_api building of `/gnu/store/0hm09h6a4469z3j2r3p7cm6jiwidm3ff-python-matplotlib-1.4.3.drv' timed out after 3600 seconds of silence @ build-failed /gnu/store/0hm09h6a4469z3j2r3p7cm6jiwidm3ff-python-matplotlib-1.4.3.drv - timeout guix build: error: build failed: build of `/gnu/store/0hm09h6a4469z3j2r3p7cm6jiwidm3ff-python-matplotlib-1.4.3.drv' failed --8<---------------cut here---------------end--------------->8--- In all four cases, the timeout occurred in the same place, after printing "reading sources... [ 2%] api/collections_api". The same builds succeeded on later attempts, e.g.: http://hydra.gnu.org:3000/build/864760#tabs-buildsteps Mark