sage-documentation build stuck

[dochtml] [reference] ... done (473 todos, 2084 index, 1396 citations, 2035 modules)
[dochtml] [reference] preparing documents... skipping loading of indexes... done
[dochtml] [reference] The inventory files are in local/share/doc/sage/inventory/en/reference.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/inventory/en/reference
[dochtml] Building reference manual, second pass.
[dochtml]
[dochtml] [manifolds] no targets are out of date.
[dochtml] [manifolds] The HTML pages are in local/share/doc/sage/html/en/reference/manifolds.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/manifolds
[dochtml] [dynamics ] no targets are out of date.
[dochtml] [dynamics ] The HTML pages are in local/share/doc/sage/html/en/reference/dynamics.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/dynamics
[dochtml] [repl     ] no targets are out of date.
[dochtml] [repl     ] The HTML pages are in local/share/doc/sage/html/en/reference/repl.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/repl
[dochtml] [tensor_fr] no targets are out of date.
[dochtml] [tensor_fr] The HTML pages are in local/share/doc/sage/html/en/reference/tensor_free_modules.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/tensor_free_modules
[dochtml] [polynomia] no targets are out of date.
[dochtml] [polynomia] The HTML pages are in local/share/doc/sage/html/en/reference/polynomial_rings.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/polynomial_rings
[dochtml] [algebras ] no targets are out of date.
[dochtml] [algebras ] The HTML pages are in local/share/doc/sage/html/en/reference/algebras.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/algebras
[dochtml] [plot3d   ] no targets are out of date.
[dochtml] [plot3d   ] The HTML pages are in local/share/doc/sage/html/en/reference/plot3d.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/plot3d
[dochtml] [arithgrou] no targets are out of date.
[dochtml] [arithgrou] The HTML pages are in local/share/doc/sage/html/en/reference/arithgroup.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/arithgroup
[dochtml] [graphs   ] building [html]: targets for 57 source files that are out of date
[dochtml] [homology ] no targets are out of date.
[dochtml] [homology ] The HTML pages are in local/share/doc/sage/html/en/reference/homology.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/homology
[dochtml] [misc     ] no targets are out of date.
[dochtml] [misc     ] The HTML pages are in local/share/doc/sage/html/en/reference/misc.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/misc
[dochtml] [parallel ] no targets are out of date.
[dochtml] [parallel ] The HTML pages are in local/share/doc/sage/html/en/reference/parallel.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/parallel
[dochtml] [asymptoti] no targets are out of date.
[dochtml] [asymptoti] The HTML pages are in local/share/doc/sage/html/en/reference/asymptotic.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/asymptotic
[dochtml] [calculus ] no targets are out of date.
[dochtml] [calculus ] The HTML pages are in local/share/doc/sage/html/en/reference/calculus.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/calculus
[dochtml] [coding   ] no targets are out of date.
[dochtml] [coding   ] The HTML pages are in local/share/doc/sage/html/en/reference/coding.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/coding
[dochtml] [coercion ] no targets are out of date.
[dochtml] [coercion ] The HTML pages are in local/share/doc/sage/html/en/reference/coercion.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/coercion
[dochtml] [categorie] no targets are out of date.
[dochtml] [categorie] The HTML pages are in local/share/doc/sage/html/en/reference/categories.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/categories
[dochtml] [constants] no targets are out of date.
[dochtml] [constants] The HTML pages are in local/share/doc/sage/html/en/reference/constants.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/constants
[dochtml] [cpython  ] no targets are out of date.
[dochtml] [cpython  ] The HTML pages are in local/share/doc/sage/html/en/reference/cpython.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/cpython
[dochtml] [cryptogra] no targets are out of date.
[dochtml] [cryptogra] The HTML pages are in local/share/doc/sage/html/en/reference/cryptography.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/cryptography
[dochtml] [data_stru] no targets are out of date.
[dochtml] [data_stru] The HTML pages are in local/share/doc/sage/html/en/reference/data_structures.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/data_structures
[dochtml] [databases] no targets are out of date.
[dochtml] [databases] The HTML pages are in local/share/doc/sage/html/en/reference/databases.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/databases
[dochtml] [diophanti] no targets are out of date.
[dochtml] [diophanti] The HTML pages are in local/share/doc/sage/html/en/reference/diophantine_approximation.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/diophantine_approximation
[dochtml] [discrete_] no targets are out of date.
[dochtml] [discrete_] The HTML pages are in local/share/doc/sage/html/en/reference/discrete_geometry.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/discrete_geometry
[dochtml] [doctest  ] no targets are out of date.
[dochtml] [doctest  ] The HTML pages are in local/share/doc/sage/html/en/reference/doctest.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/doctest
[dochtml] [finance  ] no targets are out of date.
[dochtml] [finance  ] The HTML pages are in local/share/doc/sage/html/en/reference/finance.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/finance
[dochtml] [finite_ri] no targets are out of date.
[dochtml] [finite_ri] The HTML pages are in local/share/doc/sage/html/en/reference/finite_rings.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/finite_rings
[dochtml] [function_] no targets are out of date.
[dochtml] [function_] The HTML pages are in local/share/doc/sage/html/en/reference/function_fields.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/function_fields
[dochtml] [functions] no targets are out of date.
[dochtml] [functions] The HTML pages are in local/share/doc/sage/html/en/reference/functions.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/functions
[dochtml] [game_theo] no targets are out of date.
[dochtml] [game_theo] The HTML pages are in local/share/doc/sage/html/en/reference/game_theory.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/game_theory
[dochtml] [games    ] no targets are out of date.
[dochtml] [games    ] The HTML pages are in local/share/doc/sage/html/en/reference/games.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/games
[dochtml] [curves   ] no targets are out of date.
[dochtml] [curves   ] The HTML pages are in local/share/doc/sage/html/en/reference/curves.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/curves
[dochtml] [hecke    ] no targets are out of date.
[dochtml] [hecke    ] The HTML pages are in local/share/doc/sage/html/en/reference/hecke.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/hecke
[dochtml] [hyperboli] no targets are out of date.
[dochtml] [hyperboli] The HTML pages are in local/share/doc/sage/html/en/reference/hyperbolic_geometry.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/hyperbolic_geometry
[dochtml] [groups   ] no targets are out of date.
[dochtml] [groups   ] The HTML pages are in local/share/doc/sage/html/en/reference/groups.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/groups
[dochtml] [knots    ] no targets are out of date.
[dochtml] [knots    ] The HTML pages are in local/share/doc/sage/html/en/reference/knots.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/knots
[dochtml] [lfunction] no targets are out of date.
[dochtml] [lfunction] The HTML pages are in local/share/doc/sage/html/en/reference/lfunctions.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/lfunctions
[dochtml] [libs     ] no targets are out of date.
[dochtml] [libs     ] The HTML pages are in local/share/doc/sage/html/en/reference/libs.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/libs
[dochtml] [interface] no targets are out of date.
[dochtml] [interface] The HTML pages are in local/share/doc/sage/html/en/reference/interfaces.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/interfaces
[dochtml] [logic    ] no targets are out of date.
[dochtml] [logic    ] The HTML pages are in local/share/doc/sage/html/en/reference/logic.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/logic
[dochtml] [matroids ] no targets are out of date.
[dochtml] [matroids ] The HTML pages are in local/share/doc/sage/html/en/reference/matroids.
[dochtml] [matrices ] no targets are out of date.
[dochtml] [matrices ] The HTML pages are in local/share/doc/sage/html/en/reference/matrices.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/matroids
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/matrices
[dochtml] [modabvar ] no targets are out of date.
[dochtml] [modabvar ] The HTML pages are in local/share/doc/sage/html/en/reference/modabvar.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/modabvar
[dochtml] [modfrm   ] no targets are out of date.
[dochtml] [modfrm   ] The HTML pages are in local/share/doc/sage/html/en/reference/modfrm.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/modfrm
[dochtml] [modmisc  ] no targets are out of date.
[dochtml] [modmisc  ] The HTML pages are in local/share/doc/sage/html/en/reference/modmisc.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/modmisc
[dochtml] [modsym   ] no targets are out of date.
[dochtml] [modsym   ] The HTML pages are in local/share/doc/sage/html/en/reference/modsym.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/modsym
[dochtml] [modfrm_he] no targets are out of date.
[dochtml] [modfrm_he] The HTML pages are in local/share/doc/sage/html/en/reference/modfrm_hecketriangle.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/modfrm_hecketriangle
[dochtml] [monoids  ] no targets are out of date.
[dochtml] [monoids  ] The HTML pages are in local/share/doc/sage/html/en/reference/monoids.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/monoids
[dochtml] [notebook ] no targets are out of date.
[dochtml] [notebook ] The HTML pages are in local/share/doc/sage/html/en/reference/notebook.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/notebook
[dochtml] [modules  ] no targets are out of date.
[dochtml] [modules  ] The HTML pages are in local/share/doc/sage/html/en/reference/modules.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/modules
[dochtml] [numerical] no targets are out of date.
[dochtml] [numerical] The HTML pages are in local/share/doc/sage/html/en/reference/numerical.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/numerical
[dochtml] [padics   ] no targets are out of date.
[dochtml] [padics   ] The HTML pages are in local/share/doc/sage/html/en/reference/padics.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/padics
[dochtml] [plotting ] no targets are out of date.
[dochtml] [plotting ] The HTML pages are in local/share/doc/sage/html/en/reference/plotting.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/plotting
[dochtml] [power_ser] no targets are out of date.
[dochtml] [power_ser] The HTML pages are in local/share/doc/sage/html/en/reference/power_series.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/power_series
[dochtml] [probabili] no targets are out of date.
[dochtml] [probabili] The HTML pages are in local/share/doc/sage/html/en/reference/probability.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/probability
[dochtml] [quadratic] no targets are out of date.
[dochtml] [quadratic] The HTML pages are in local/share/doc/sage/html/en/reference/quadratic_forms.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/quadratic_forms
[dochtml] [quat_alge] no targets are out of date.
[dochtml] [quat_alge] The HTML pages are in local/share/doc/sage/html/en/reference/quat_algebras.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/quat_algebras
[dochtml] [quivers  ] no targets are out of date.
[dochtml] [quivers  ] The HTML pages are in local/share/doc/sage/html/en/reference/quivers.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/quivers
[dochtml] [riemannia] no targets are out of date.
[dochtml] [riemannia] The HTML pages are in local/share/doc/sage/html/en/reference/riemannian_geometry.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/riemannian_geometry
[dochtml] [rings    ] no targets are out of date.
[dochtml] [rings    ] The HTML pages are in local/share/doc/sage/html/en/reference/rings.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/rings
[dochtml] [rings_num] no targets are out of date.
[dochtml] [rings_num] The HTML pages are in local/share/doc/sage/html/en/reference/rings_numerical.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/rings_numerical
[dochtml] [rings_sta] no targets are out of date.
[dochtml] [rings_sta] The HTML pages are in local/share/doc/sage/html/en/reference/rings_standard.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/rings_standard
[dochtml] [sat      ] no targets are out of date.
[dochtml] [sat      ] The HTML pages are in local/share/doc/sage/html/en/reference/sat.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/sat
[dochtml] [schemes  ] no targets are out of date.
[dochtml] [schemes  ] The HTML pages are in local/share/doc/sage/html/en/reference/schemes.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/schemes
[dochtml] [semirings] no targets are out of date.
[dochtml] [semirings] The HTML pages are in local/share/doc/sage/html/en/reference/semirings.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/semirings
[dochtml] [sets     ] no targets are out of date.
[dochtml] [sets     ] The HTML pages are in local/share/doc/sage/html/en/reference/sets.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/sets
[dochtml] [stats    ] no targets are out of date.
[dochtml] [stats    ] The HTML pages are in local/share/doc/sage/html/en/reference/stats.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/stats
[dochtml] [structure] no targets are out of date.
[dochtml] [structure] The HTML pages are in local/share/doc/sage/html/en/reference/structure.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/structure
[dochtml] [valuation] no targets are out of date.
[dochtml] [valuation] The HTML pages are in local/share/doc/sage/html/en/reference/valuations.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/valuations
[dochtml] [history_a] no targets are out of date.
[dochtml] [history_a] The HTML pages are in local/share/doc/sage/html/en/reference/history_and_license.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/history_and_license
[dochtml] [reference] no targets are out of date.
[dochtml] [reference] The HTML pages are in local/share/doc/sage/html/en/reference/references.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/references
[dochtml] [number_fi] no targets are out of date.
[dochtml] [number_fi] The HTML pages are in local/share/doc/sage/html/en/reference/number_fields.
[dochtml] Build finished. The built documents can be found in /home/pi/sage-8.4/local/share/doc/sage/html/en/reference/number_fields