DEBUG=1 ./rebar3 do eunit -cv, cover -v

gistfile1.txt

===> Uncaught error in rebar_core. Run with DEBUG=1 to see stacktrace
===> Uncaught error: {function_clause,
                                [{cover,find_main_filename,
                                     [[]],
                                     [{file,"cover.erl"},{line,1612}]},
                                 {cover,transform,2,
                                     [{file,"cover.erl"},{line,1605}]},
                                 {cover,do_compile_beam1,3,
                                     [{file,"cover.erl"},{line,1540}]},
                                 {cover,do_compile_beam,3,
                                     [{file,"cover.erl"},{line,1472}]},
                                 {lists,map,2,
                                     [{file,"lists.erl"},{line,1238}]},
                                 {cover,'-pmap_spawn/4-fun-0-',2,
                                     [{file,"cover.erl"},{line,2721}]}]}
===> Stack trace to the error location: [{cover,call,1,
                                                 [{file,"cover.erl"},
                                                  {line,585}]},
                                                {rebar_prv_cover,compile,2,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_prv_cover.erl"},
                                                  {line,295}]},
                                                {rebar_prv_cover,
                                                 cover_compile,2,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_prv_cover.erl"},
                                                  {line,288}]},
                                                {rebar_prv_eunit,compile,2,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_prv_eunit.erl"},
                                                  {line,127}]},
                                                {rebar_prv_eunit,do,1,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_prv_eunit.erl"},
                                                  {line,43}]},
                                                {rebar_core,do,2,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_core.erl"},
                                                  {line,125}]},
                                                {rebar_prv_do,do_tasks,2,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_prv_do.erl"},
                                                  {line,57}]},
                                                {rebar_core,do,2,
                                                 [{file,
                                                   "/Users/lpgauth/Git/rebar3/_build/default/lib/rebar/src/rebar_core.erl"},
                                                  {line,125}]}]