[INFO] cloning repository alluet/mdbook-html-taco
[INFO] running `"git" "clone" "--bare" "git://github.com/alluet/mdbook-html-taco.git" "work/cache/sources/gh/alluet/mdbook-html-taco"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/alluet/mdbook-html-taco'...
[INFO] running `"git" "clone" "work/cache/sources/gh/alluet/mdbook-html-taco" "work/ex/beta-1.37-6/sources/1.36.0/gh/alluet/mdbook-html-taco"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/alluet/mdbook-html-taco'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/alluet/mdbook-html-taco" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alluet/mdbook-html-taco"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alluet/mdbook-html-taco'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f081729ad6c456670a007eae546263d23e582410
[INFO] sha for GitHub repo alluet/mdbook-html-taco: f081729ad6c456670a007eae546263d23e582410
[INFO] validating manifest of alluet/mdbook-html-taco on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of alluet/mdbook-html-taco on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing alluet/mdbook-html-taco
[INFO] finished frobbing alluet/mdbook-html-taco
[INFO] frobbed toml for alluet/mdbook-html-taco written to work/ex/beta-1.37-6/sources/1.36.0/gh/alluet/mdbook-html-taco/Cargo.toml
[INFO] started frobbing alluet/mdbook-html-taco
[INFO] finished frobbing alluet/mdbook-html-taco
[INFO] frobbed toml for alluet/mdbook-html-taco written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alluet/mdbook-html-taco/Cargo.toml
[INFO] crate alluet/mdbook-html-taco already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing alluet/mdbook-html-taco against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alluet/mdbook-html-taco:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] abc2fbae8208c47267dff0d6f4b5bb516184a061145b44fb038a936a6261584d
[INFO] running `"docker" "start" "-a" "abc2fbae8208c47267dff0d6f4b5bb516184a061145b44fb038a936a6261584d"`
[INFO] [stderr]    Compiling syn v0.15.34
[INFO] [stderr]    Compiling sequence_trie v0.3.6
[INFO] [stderr]    Compiling pulldown-cmark v0.5.2
[INFO] [stderr]    Compiling is-match v0.1.0
[INFO] [stderr]    Compiling strum v0.11.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.26
[INFO] [stderr]    Compiling tendril v0.4.1
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling num_cpus v1.10.0
[INFO] [stderr]    Compiling net2 v0.2.33
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling inotify-sys v0.1.3
[INFO] [stderr]    Compiling filetime v0.2.5
[INFO] [stderr]    Compiling mime v0.2.6
[INFO] [stderr]    Compiling parking_lot v0.8.0
[INFO] [stderr]    Compiling bytes v0.4.12
[INFO] [stderr]    Compiling inotify v0.6.1
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling chrono v0.4.6
[INFO] [stderr]    Compiling env_logger v0.6.1
[INFO] [stderr]    Compiling sha-1 v0.8.1
[INFO] [stderr]    Compiling mio v0.6.18
[INFO] [stderr]    Compiling hyper v0.10.16
[INFO] [stderr]    Compiling error-chain v0.12.1
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling parking_lot_core v0.5.0
[INFO] [stderr]    Compiling tempfile v3.0.8
[INFO] [stderr]    Compiling phf_codegen v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling mio-extras v2.0.5
[INFO] [stderr]    Compiling mime_guess v1.8.7
[INFO] [stderr]    Compiling notify v4.0.12
[INFO] [stderr]    Compiling ws v0.8.1
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling once_cell v0.2.2
[INFO] [stderr]    Compiling iron v0.6.0
[INFO] [stderr]    Compiling mount v0.4.0
[INFO] [stderr]    Compiling staticfile v0.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.91
[INFO] [stderr]    Compiling darling_core v0.8.6
[INFO] [stderr]    Compiling synstructure v0.10.2
[INFO] [stderr]    Compiling html5ever v0.23.0
[INFO] [stderr]    Compiling pest_generator v2.1.0
[INFO] [stderr]    Compiling strum_macros v0.11.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling darling_macro v0.8.6
[INFO] [stderr]    Compiling darling v0.8.6
[INFO] [stderr]    Compiling toml-query_derive v0.9.0
[INFO] [stderr]    Compiling toml-query v0.9.0
[INFO] [stderr]    Compiling markup5ever v0.8.1
[INFO] [stderr]    Compiling elasticlunr-rs v2.3.4
[INFO] [stderr]    Compiling ammonia v2.1.2
[INFO] [stderr]    Compiling mdbook-html-taco v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 53s
[INFO] running `"docker" "inspect" "abc2fbae8208c47267dff0d6f4b5bb516184a061145b44fb038a936a6261584d"`
[INFO] running `"docker" "rm" "-f" "abc2fbae8208c47267dff0d6f4b5bb516184a061145b44fb038a936a6261584d"`
[INFO] [stdout] abc2fbae8208c47267dff0d6f4b5bb516184a061145b44fb038a936a6261584d
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alluet/mdbook-html-taco:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] 765282d14caece27ccff6b8e41fdfd3c982f2e83032ee1a1bf29a6fed7f3e479
[INFO] running `"docker" "start" "-a" "765282d14caece27ccff6b8e41fdfd3c982f2e83032ee1a1bf29a6fed7f3e479"`
[INFO] [stderr]    Compiling tendril v0.3.1
[INFO] [stderr]    Compiling html5ever v0.18.0
[INFO] [stderr]    Compiling string_cache v0.6.2
[INFO] [stderr]    Compiling markup5ever v0.3.2
[INFO] [stderr]    Compiling select v0.4.2
[INFO] [stderr]    Compiling mdbook-html-taco v0.3.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.28s
[INFO] running `"docker" "inspect" "765282d14caece27ccff6b8e41fdfd3c982f2e83032ee1a1bf29a6fed7f3e479"`
[INFO] running `"docker" "rm" "-f" "765282d14caece27ccff6b8e41fdfd3c982f2e83032ee1a1bf29a6fed7f3e479"`
[INFO] [stdout] 765282d14caece27ccff6b8e41fdfd3c982f2e83032ee1a1bf29a6fed7f3e479
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-7/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/alluet/mdbook-html-taco:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 04e852b04ba93d5e468759a7bdde79f91785ae9c0ba1532f966dd98daa050d3e
[INFO] running `"docker" "start" "-a" "04e852b04ba93d5e468759a7bdde79f91785ae9c0ba1532f966dd98daa050d3e"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.24s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/mdbook_html_taco-933cc6e26ed5bb72
[INFO] [stdout] 
[INFO] [stdout] running 79 tests
[INFO] [stdout] test book::book::tests::book_iter_iterates_over_sequential_items ... ok
[INFO] [stdout] test book::book::tests::for_each_mut_visits_all_items ... ok
[INFO] [stdout] test book::book::tests::cant_load_a_nonexistent_chapter ... ok
[INFO] [stdout] test book::book::tests::cant_load_chapters_when_the_link_is_a_directory ... ok
[INFO] [stdout] test book::book::tests::cant_load_chapters_with_an_empty_path ... ok
[INFO] [stdout] test book::book::tests::iterate_over_nested_book_items ... ok
[INFO] [stdout] test book::summary::tests::convert_markdown_events_to_a_string ... ok
[INFO] [stdout] test book::summary::tests::can_have_a_subheader_between_nested_items ... ok
[INFO] [stdout] test book::book::tests::load_recursive_link_with_separators ... ok
[INFO] [stdout] test book::summary::tests::parse_initial_title ... ok
[INFO] [stdout] test book::summary::tests::an_empty_link_location_is_an_error ... ok
[INFO] [stdout] test book::summary::tests::parse_some_prefix_items ... ok
[INFO] [stdout] test book::summary::tests::parse_prefix_items_with_a_separator ... ok
[INFO] [stdout] test book::summary::tests::parse_title_with_styling ... ok
[INFO] [stdout] test book::book::tests::load_a_book_with_a_single_chapter ... ok
[INFO] [stdout] test book::summary::tests::parse_a_numbered_chapter ... ok
[INFO] [stdout] test book::summary::tests::suffix_items_cannot_be_followed_by_a_list ... ok
[INFO] [stdout] test book::summary::tests::parse_a_link ... ok
[INFO] [stdout] test book::summary::tests::parse_nested_numbered_chapters ... ok
[INFO] [stdout] test book::book::tests::load_a_single_chapter_from_disk ... ok
[INFO] [stdout] test book::summary::tests::keep_numbering_after_separator ... ok
[INFO] [stdout] test book::summary::tests::section_number_has_correct_dotted_representation ... ok
[INFO] [stdout] test book::tests::preprocessor_should_run_falls_back_to_supports_renderer_method ... ok
[INFO] [stdout] test book::tests::use_default_preprocessors_works ... ok
[INFO] [stdout] test book::tests::config_defaults_to_html_renderer_if_empty ... ok
[INFO] [stdout] test book::tests::config_defaults_to_link_and_index_preprocessor_if_not_set ... ok
[INFO] [stdout] test book::tests::config_respects_preprocessor_selection ... ok
[INFO] [stdout] test book::tests::add_a_random_renderer_to_the_config ... ok
[INFO] [stdout] test book::tests::add_a_random_renderer_with_custom_command_to_the_config ... ok
[INFO] [stdout] test book::tests::preprocessors_can_provide_their_own_commands ... ok
[INFO] [stdout] test config::tests::parse_env_vars ... ok
[INFO] [stdout] test config::tests::mutate_some_stuff ... ok
[INFO] [stdout] test book::tests::can_determine_third_party_preprocessors ... ok
[INFO] [stdout] test config::tests::load_arbitrary_output_type ... ok
[INFO] [stdout] test config::tests::set_a_config_item ... ok
[INFO] [stdout] test config::tests::update_book_title_via_env ... ok
[INFO] [stdout] test config::tests::update_config_using_env_var_and_complex_value ... ok
[INFO] [stdout] test config::tests::update_config_using_env_var ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_empty_link ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_no_link ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_escaped_link ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_all_link_types ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_unknown_link_type ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_partial_link ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_simple_link ... ok
[INFO] [stdout] test preprocess::index::tests::file_stem_exactly_matches_readme_case_insensitively ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_with_full_range ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_with_line_number ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_with_from_range ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_with_no_range_specified ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_with_range ... ok
[INFO] [stdout] test preprocess::links::tests::test_replace_all_escaped ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_links_with_to_range ... ok
[INFO] [stdout] test preprocess::links::tests::test_find_playpens_with_properties ... ok
[INFO] [stdout] test theme::tests::theme_dir_overrides_defaults ... ok
[INFO] [stdout] test theme::tests::theme_uses_defaults_with_nonexistent_src_dir ... ok
[INFO] [stdout] test renderer::html_handlebars::hbs_renderer::tests::original_build_header_links ... ok
[INFO] [stdout] test utils::string::tests::take_lines_test ... ok
[INFO] [stdout] test utils::fs::tests::copy_files_except_ext_test ... ok
[INFO] [stdout] test utils::tests::convert_quotes_to_curly::it_converts_double_quotes ... ok
[INFO] [stdout] test utils::tests::convert_quotes_to_curly::it_converts_single_quotes ... ok
[INFO] [stdout] test utils::tests::html_munging::it_generates_anchors ... ok
[INFO] [stdout] test utils::tests::convert_quotes_to_curly::it_treats_tab_as_whitespace ... ok
[INFO] [stdout] test utils::tests::html_munging::it_normalizes_ids ... ok
[INFO] [stdout] test utils::tests::html_munging::it_generates_anchors_from_non_ascii_initial ... ok
[INFO] [stdout] test utils::tests::render_markdown::it_can_keep_quotes_straight ... ok
[INFO] [stdout] test utils::tests::render_markdown::it_can_make_quotes_curly_except_when_they_are_in_code ... ok
[INFO] [stdout] test utils::tests::render_markdown::preserves_external_links ... ok
[INFO] [stdout] test utils::tests::render_markdown::it_can_adjust_markdown_links ... ok
[INFO] [stdout] test utils::tests::render_markdown::rust_code_block_properties_are_passed_as_space_delimited_class ... ok
[INFO] [stdout] test utils::tests::render_markdown::rust_code_block_properties_with_whitespace_are_passed_as_space_delimited_class ... ok
[INFO] [stdout] test utils::tests::render_markdown::rust_code_block_without_properties_has_proper_html_class ... ok
[INFO] [stdout] test utils::tests::render_markdown::whitespace_outside_of_codeblock_header_is_preserved ... ok
[INFO] [stdout] test renderer::html_handlebars::helpers::navigation::tests::test_first ... FAILED
[INFO] [stdout] test renderer::html_handlebars::helpers::navigation::tests::test_last ... FAILED
[INFO] [stdout] test config::tests::load_a_complex_config_file ... FAILED
[INFO] [stdout] test renderer::html_handlebars::helpers::navigation::tests::test_next_previous ... FAILED
[INFO] [stdout] test config::tests::can_still_load_the_previous_format ... FAILED
[INFO] [stdout] test preprocess::cmd::tests::round_trip_write_and_parse_input ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- renderer::html_handlebars::helpers::navigation::tests::test_first stdout ----
[INFO] [stdout] thread 'renderer::html_handlebars::helpers::navigation::tests::test_first' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:347:21
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c7ac5f5dcb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55c7ac5f5dcb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55c7ac5f5dcb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55c7ac5f5dcb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55c7ac5f5dcb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55c7ac5f5a3a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55c7ac5f6540 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55c7ac5f60c2 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55c7ac5f5fa6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55c7ac61739d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55c7ac6172dc - core::panicking::panic::hedd9888e25456fbe
[INFO] [stdout]                                at src/libcore/panicking.rs:49
[INFO] [stdout]   11:     0x55c7abbe2670 - core::option::Option<T>::unwrap::had01e629049b4a9b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:12
[INFO] [stdout]   12:     0x55c7abc61e1e - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::render::h74ecf2376d43ebfe
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:101
[INFO] [stdout]   13:     0x55c7abc63e4c - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::next::h5f3c77c475caed10
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:168
[INFO] [stdout]   14:     0x55c7abc494b0 - core::ops::function::Fn::call::hde3821ce485393cf
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:69
[INFO] [stdout]   15:     0x55c7abc59565 - <F as handlebars::helpers::HelperDef>::call::hd703c8330648381c
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/helpers/mod.rs:125
[INFO] [stdout]   16:     0x55c7ac0ad808 - <handlebars::template::TemplateElement as handlebars::render::Renderable>::render::{{closure}}::h33fda45b6b9cbe66
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:788
[INFO] [stdout]   17:     0x55c7ac0d76a1 - core::result::Result<T,E>::and_then::h0a693273ead60835
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:639
[INFO] [stdout]   18:     0x55c7ac120eb9 - <handlebars::template::TemplateElement as handlebars::render::Renderable>::render::hf0af197702368001
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:776
[INFO] [stdout]   19:     0x55c7ac11f6a9 - <handlebars::template::Template as handlebars::render::Renderable>::render::h4a523cc097206dd7
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:688
[INFO] [stdout]   20:     0x55c7abc47cbe - handlebars::registry::Registry::render_template_to_write::h427535079c1d2455
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/registry.rs:410
[INFO] [stdout]   21:     0x55c7abc4701d - handlebars::registry::Registry::render_template::h5e3ab7d19d2e5947
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/registry.rs:391
[INFO] [stdout]   22:     0x55c7abca2d33 - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::tests::test_first::h97931f7daa5cf5f8
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:238
[INFO] [stdout]   23:     0x55c7abca23ba - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::tests::test_first::{{closure}}::h803c41d0de5340c8
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:213
[INFO] [stdout]   24:     0x55c7abc4b7ee - core::ops::function::FnOnce::call_once::hdab097b52bcc5faa
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   25:     0x55c7abfaa39f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   26:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   27:     0x55c7abfc4998 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   28:     0x55c7abfc4998 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   29:     0x55c7abfc4998 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   30:     0x55c7abf9f815 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   31:     0x55c7abfa3995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   32:     0x55c7abfa3995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   33:     0x55c7abfa3995 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   34:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   35:     0x55c7abfa3fd2 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   36:     0x55c7abfa3fd2 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   37:     0x55c7abfa3fd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   38:     0x55c7abfa3fd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   39:     0x55c7ac5e720f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   40:     0x55c7ac5fdfd0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   41:     0x55c7ac5fdfd0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   42:     0x55c7ac5fdfd0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   43:     0x7f8d620674a4 - start_thread
[INFO] [stdout]   44:     0x7f8d61b92d0f - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- renderer::html_handlebars::helpers::navigation::tests::test_last stdout ----
[INFO] [stdout] thread 'renderer::html_handlebars::helpers::navigation::tests::test_last' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:347:21
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c7ac5f5dcb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55c7ac5f5dcb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55c7ac5f5dcb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55c7ac5f5dcb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55c7ac5f5dcb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55c7ac5f5a3a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55c7ac5f6540 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55c7ac5f60c2 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55c7ac5f5fa6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55c7ac61739d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55c7ac6172dc - core::panicking::panic::hedd9888e25456fbe
[INFO] [stdout]                                at src/libcore/panicking.rs:49
[INFO] [stdout]   11:     0x55c7abbe2670 - core::option::Option<T>::unwrap::had01e629049b4a9b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:12
[INFO] [stdout]   12:     0x55c7abc61e1e - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::render::h74ecf2376d43ebfe
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:101
[INFO] [stdout]   13:     0x55c7abc6360c - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::previous::ha760ad0a751f733e
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:152
[INFO] [stdout]   14:     0x55c7abc49440 - core::ops::function::Fn::call::hc42f3032ddf36d5f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:69
[INFO] [stdout]   15:     0x55c7abc59495 - <F as handlebars::helpers::HelperDef>::call::h380099ebf474cc36
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/helpers/mod.rs:125
[INFO] [stdout]   16:     0x55c7ac0ad808 - <handlebars::template::TemplateElement as handlebars::render::Renderable>::render::{{closure}}::h33fda45b6b9cbe66
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:788
[INFO] [stdout]   17:     0x55c7ac0d76a1 - core::result::Result<T,E>::and_then::h0a693273ead60835
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:639
[INFO] [stdout]   18:     0x55c7ac120eb9 - <handlebars::template::TemplateElement as handlebars::render::Renderable>::render::hf0af197702368001
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:776
[INFO] [stdout]   19:     0x55c7ac11f6a9 - <handlebars::template::Template as handlebars::render::Renderable>::render::h4a523cc097206dd7
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:688
[INFO] [stdout]   20:     0x55c7abc47cbe - handlebars::registry::Registry::render_template_to_write::h427535079c1d2455
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/registry.rs:410
[INFO] [stdout]   21:     0x55c7abc4701d - handlebars::registry::Registry::render_template::h5e3ab7d19d2e5947
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/registry.rs:391
[INFO] [stdout]   22:     0x55c7abca3b83 - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::tests::test_last::hace1e32d222f6bec
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:268
[INFO] [stdout]   23:     0x55c7abca320a - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::tests::test_last::{{closure}}::haee5ebd010a2dd4a
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:243
[INFO] [stdout]   24:     0x55c7abc4b5be - core::ops::function::FnOnce::call_once::hc606f5ce5a85995c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   25:     0x55c7abfaa39f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   26:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   27:     0x55c7abfc4998 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   28:     0x55c7abfc4998 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   29:     0x55c7abfc4998 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   30:     0x55c7abf9f815 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   31:     0x55c7abfa3995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   32:     0x55c7abfa3995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   33:     0x55c7abfa3995 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   34:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   35:     0x55c7abfa3fd2 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   36:     0x55c7abfa3fd2 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   37:     0x55c7abfa3fd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   38:     0x55c7abfa3fd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   39:     0x55c7ac5e720f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   40:     0x55c7ac5fdfd0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   41:     0x55c7ac5fdfd0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   42:     0x55c7ac5fdfd0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   43:     0x7f8d620674a4 - start_thread
[INFO] [stdout]   44:     0x7f8d61b92d0f - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- config::tests::load_a_complex_config_file stdout ----
[INFO] [stdout] thread 'config::tests::load_a_complex_config_file' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:347:21
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c7ac5f5dcb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55c7ac5f5dcb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55c7ac5f5dcb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55c7ac5f5dcb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55c7ac5f5dcb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55c7ac5f5a3a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55c7ac5f6540 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55c7ac5f60c2 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55c7ac5f5fa6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55c7ac61739d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55c7ac6172dc - core::panicking::panic::hedd9888e25456fbe
[INFO] [stdout]                                at src/libcore/panicking.rs:49
[INFO] [stdout]   11:     0x55c7abbe29aa - core::option::Option<T>::unwrap::hfdf2cbbf2a153f41
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:12
[INFO] [stdout]   12:     0x55c7abdaeee1 - mdbook_html_taco::config::tests::load_a_complex_config_file::hb3405e61592d6c5f
[INFO] [stdout]                                at src/config.rs:633
[INFO] [stdout]   13:     0x55c7abdae54a - mdbook_html_taco::config::tests::load_a_complex_config_file::{{closure}}::h0e27aab3af518103
[INFO] [stdout]                                at src/config.rs:597
[INFO] [stdout]   14:     0x55c7abc4ab8e - core::ops::function::FnOnce::call_once::h7a888fc42dc9d3c0
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   15:     0x55c7abfaa39f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   16:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   17:     0x55c7abfc4998 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   18:     0x55c7abfc4998 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   19:     0x55c7abfc4998 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   20:     0x55c7abf9f815 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   21:     0x55c7abfa3995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   22:     0x55c7abfa3995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   23:     0x55c7abfa3995 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   24:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   25:     0x55c7abfa3fd2 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   26:     0x55c7abfa3fd2 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   27:     0x55c7abfa3fd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   28:     0x55c7abfa3fd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   29:     0x55c7ac5e720f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   30:     0x55c7ac5fdfd0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   31:     0x55c7ac5fdfd0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   32:     0x55c7ac5fdfd0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   33:     0x7f8d620674a4 - start_thread
[INFO] [stdout]   34:     0x7f8d61b92d0f - __clone
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- renderer::html_handlebars::helpers::navigation::tests::test_next_previous stdout ----
[INFO] [stdout] thread 'renderer::html_handlebars::helpers::navigation::tests::test_next_previous' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:347:21
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c7ac5f5dcb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55c7ac5f5dcb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55c7ac5f5dcb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55c7ac5f5dcb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55c7ac5f5dcb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55c7ac5f5a3a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55c7ac5f6540 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55c7ac5f60c2 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55c7ac5f5fa6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55c7ac61739d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55c7ac6172dc - core::panicking::panic::hedd9888e25456fbe
[INFO] [stdout]                                at src/libcore/panicking.rs:49
[INFO] [stdout]   11:     0x55c7abbe2670 - core::option::Option<T>::unwrap::had01e629049b4a9b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:12
[INFO] [stdout]   12:     0x55c7abc61e1e - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::render::h74ecf2376d43ebfe
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:101
[INFO] [stdout]   13:     0x55c7abc6360c - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::previous::ha760ad0a751f733e
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:152
[INFO] [stdout]   14:     0x55c7abc49440 - core::ops::function::Fn::call::hc42f3032ddf36d5f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:69
[INFO] [stdout]   15:     0x55c7abc59495 - <F as handlebars::helpers::HelperDef>::call::h380099ebf474cc36
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/helpers/mod.rs:125
[INFO] [stdout]   16:     0x55c7ac0ad808 - <handlebars::template::TemplateElement as handlebars::render::Renderable>::render::{{closure}}::h33fda45b6b9cbe66
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:788
[INFO] [stdout]   17:     0x55c7ac0d76a1 - core::result::Result<T,E>::and_then::h0a693273ead60835
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:639
[INFO] [stdout]   18:     0x55c7ac120eb9 - <handlebars::template::TemplateElement as handlebars::render::Renderable>::render::hf0af197702368001
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:776
[INFO] [stdout]   19:     0x55c7ac11f6a9 - <handlebars::template::Template as handlebars::render::Renderable>::render::h4a523cc097206dd7
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/render.rs:688
[INFO] [stdout]   20:     0x55c7abc47cbe - handlebars::registry::Registry::render_template_to_write::h427535079c1d2455
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/registry.rs:410
[INFO] [stdout]   21:     0x55c7abc4701d - handlebars::registry::Registry::render_template::h5e3ab7d19d2e5947
[INFO] [stdout]                                at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/handlebars-1.1.0/src/registry.rs:391
[INFO] [stdout]   22:     0x55c7abca1ee3 - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::tests::test_next_previous::hd86a55a0b454004d
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:207
[INFO] [stdout]   23:     0x55c7abca156a - mdbook_html_taco::renderer::html_handlebars::helpers::navigation::tests::test_next_previous::{{closure}}::h33d9bf36642ad25e
[INFO] [stdout]                                at src/renderer/html_handlebars/helpers/navigation.rs:182
[INFO] [stdout]   24:     0x55c7abc49bfe - core::ops::function::FnOnce::call_once::h18f6113658866380
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   25:     0x55c7abfaa39f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   26:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   27:     0x55c7abfc4998 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   28:     0x55c7abfc4998 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   29:     0x55c7abfc4998 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   30:     0x55c7abf9f815 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   31:     0x55c7abfa3995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   32:     0x55c7abfa3995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   33:     0x55c7abfa3995 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   34:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   35:     0x55c7abfa3fd2 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   36:     0x55c7abfa3fd2 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   37:     0x55c7abfa3fd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   38:     0x55c7abfa3fd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   39:     0x55c7ac5e720f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   40:     0x55c7ac5fdfd0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   41:     0x55c7ac5fdfd0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   42:     0x55c7ac5fdfd0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   43:     0x7f8d620674a4 - start_thread
[INFO] [stdout]   44:     0x7f8d61b92d0f - __clone
[INFO] [stdout]   45:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- config::tests::can_still_load_the_previous_format stdout ----
[INFO] [stdout] thread 'config::tests::can_still_load_the_previous_format' panicked at 'called `Option::unwrap()` on a `None` value', src/libcore/option.rs:347:21
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c7ac5f5dcb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55c7ac5f5dcb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55c7ac5f5dcb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55c7ac5f5dcb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55c7ac5f5dcb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55c7ac5f5a3a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55c7ac5f6540 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55c7ac5f60c2 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55c7ac5f5fa6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55c7ac61739d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55c7ac6172dc - core::panicking::panic::hedd9888e25456fbe
[INFO] [stdout]                                at src/libcore/panicking.rs:49
[INFO] [stdout]   11:     0x55c7abbe29aa - core::option::Option<T>::unwrap::hfdf2cbbf2a153f41
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:12
[INFO] [stdout]   12:     0x55c7abdb274a - mdbook_html_taco::config::tests::can_still_load_the_previous_format::h7491fdf349bc3299
[INFO] [stdout]                                at src/config.rs:731
[INFO] [stdout]   13:     0x55c7abdb1e0a - mdbook_html_taco::config::tests::can_still_load_the_previous_format::{{closure}}::ha1e097a4c06defce
[INFO] [stdout]                                at src/config.rs:687
[INFO] [stdout]   14:     0x55c7abc4b00e - core::ops::function::FnOnce::call_once::ha3504eacd29ab4d1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   15:     0x55c7abfaa39f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   16:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   17:     0x55c7abfc4998 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   18:     0x55c7abfc4998 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   19:     0x55c7abfc4998 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   20:     0x55c7abf9f815 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   21:     0x55c7abfa3995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   22:     0x55c7abfa3995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   23:     0x55c7abfa3995 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   24:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   25:     0x55c7abfa3fd2 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   26:     0x55c7abfa3fd2 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   27:     0x55c7abfa3fd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   28:     0x55c7abfa3fd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   29:     0x55c7ac5e720f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   30:     0x55c7ac5fdfd0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   31:     0x55c7ac5fdfd0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   32:     0x55c7ac5fdfd0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   33:     0x7f8d620674a4 - start_thread
[INFO] [stdout]   34:     0x7f8d61b92d0f - __clone
[INFO] [stdout]   35:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] ---- preprocess::cmd::tests::round_trip_write_and_parse_input stdout ----
[INFO] [stdout] thread 'preprocess::cmd::tests::round_trip_write_and_parse_input' panicked at 'called `Result::unwrap()` on an `Err` value: Error(Msg("Couldn\'t open SUMMARY.md"), State { next_error: Some(Os { code: 2, kind: NotFound, message: "No such file or directory" }), backtrace: InternalBacktrace { backtrace: Some(stack backtrace:
[INFO] [stdout]    0: error_chain::backtrace::imp::InternalBacktrace::new::he048e7484b82181e (0x55c7ac5a1694)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.12.1/src/backtrace.rs:56
[INFO] [stdout]    1: core::ops::function::FnOnce::call_once::haacaa1d031803575 (0x55c7abc4b1a9)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]    2: core::option::Option<T>::unwrap_or_else::hd491b1a40b3d57e9 (0x55c7abbdda0a)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/option.rs:388
[INFO] [stdout]    3: error_chain::State::new::hf314d1eea4182ccf (0x55c7abc482d3)
[INFO] [stdout]              at /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/error-chain-0.12.1/src/lib.rs:679
[INFO] [stdout]    4: <core::result::Result<T,E> as mdbook_html_taco::errors::ResultExt<T>>::chain_err::{{closure}}::h33ded5f720a3cc94 (0x55c7abca6775)
[INFO] [stdout]              at /opt/crater/workdir/<::error_chain::error_chain::impl_error_chain_processed macros>:142
[INFO] [stdout]    5: core::result::Result<T,E>::map_err::h730688e2049490cd (0x55c7abd0730a)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:522
[INFO] [stdout]    6: <core::result::Result<T,E> as mdbook_html_taco::errors::ResultExt<T>>::chain_err::h1daa7b8711d6fb03 (0x55c7abd1c2af)
[INFO] [stdout]              at /opt/crater/workdir/<::error_chain::error_chain::impl_error_chain_processed macros>:140
[INFO] [stdout]    7: mdbook_html_taco::book::book::load_book::hb5a61c05806927d5 (0x55c7abcda235)
[INFO] [stdout]              at src/book/book.rs:17
[INFO] [stdout]    8: mdbook_html_taco::book::MDBook::load_with_config::h2db37ae95959bded (0x55c7abc9eebc)
[INFO] [stdout]              at src/book/mod.rs:85
[INFO] [stdout]    9: mdbook_html_taco::book::MDBook::load::h34918edefca97ab1 (0x55c7abc9ec5f)
[INFO] [stdout]              at src/book/mod.rs:77
[INFO] [stdout]   10: mdbook_html_taco::preprocess::cmd::tests::book_example::h5d33b0619a537a41 (0x55c7abbed12c)
[INFO] [stdout]              at src/preprocess/cmd.rs:175
[INFO] [stdout]   11: mdbook_html_taco::preprocess::cmd::tests::round_trip_write_and_parse_input::h008798233f7593d1 (0x55c7abbf2111)
[INFO] [stdout]              at src/preprocess/cmd.rs:181
[INFO] [stdout]   12: mdbook_html_taco::preprocess::cmd::tests::round_trip_write_and_parse_input::{{closure}}::h13b55cad65fb1d4a (0x55c7abbf2059)
[INFO] [stdout]              at src/preprocess/cmd.rs:179
[INFO] [stdout]   13: core::ops::function::FnOnce::call_once::h66a3624b577b35ee (0x55c7abc4a98d)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   14: <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042 (0x55c7abfaa39e)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   15: __rust_maybe_catch_panic (0x55c7ac5feb99)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   16: std::panicking::try::h4b4c6c15836266eb (0x55c7abfc4997)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]       std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]       test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]              at src/libtest/lib.rs:1466
[INFO] [stdout]   17: std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40 (0x55c7abf9f814)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   18: std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776 (0x55c7abfa3994)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]       <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]       std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   19: __rust_maybe_catch_panic (0x55c7ac5feb99)
[INFO] [stdout]              at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   20: std::panicking::try::h9fff34be50f16431 (0x55c7abfa3fd1)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]       std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]       std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]       core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   21: <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b (0x55c7ac5e720e)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   22: <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1 (0x55c7ac5fdfcf)
[INFO] [stdout]              at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]       std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]              at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]       std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]              at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   23: start_thread (0x7f8d620674a3)
[INFO] [stdout]   24: __clone (0x7f8d61b92d0e)
[INFO] [stdout]   25: <unknown> (0x0)) } })', src/libcore/result.rs:999:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x55c7ac5f5dcb - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88
[INFO] [stdout]    1:     0x55c7ac5f5dcb - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x55c7ac5f5dcb - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:47
[INFO] [stdout]    3:     0x55c7ac5f5dcb - std::sys_common::backtrace::print::h31646c3786c57441
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:36
[INFO] [stdout]    4:     0x55c7ac5f5dcb - std::panicking::default_hook::{{closure}}::hda785e768c746ae7
[INFO] [stdout]                                at src/libstd/panicking.rs:200
[INFO] [stdout]    5:     0x55c7ac5f5a3a - std::panicking::default_hook::h0c4b76f338614ef1
[INFO] [stdout]                                at src/libstd/panicking.rs:211
[INFO] [stdout]    6:     0x55c7ac5f6540 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce
[INFO] [stdout]                                at src/libstd/panicking.rs:477
[INFO] [stdout]    7:     0x55c7ac5f60c2 - std::panicking::continue_panic_fmt::h0046167652be99a6
[INFO] [stdout]                                at src/libstd/panicking.rs:384
[INFO] [stdout]    8:     0x55c7ac5f5fa6 - rust_begin_unwind
[INFO] [stdout]                                at src/libstd/panicking.rs:311
[INFO] [stdout]    9:     0x55c7ac61739d - core::panicking::panic_fmt::h8980489a6c4a44cb
[INFO] [stdout]                                at src/libcore/panicking.rs:85
[INFO] [stdout]   10:     0x55c7abcf72b3 - core::result::unwrap_failed::he13e5e74bb9a83c2
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/macros.rs:18
[INFO] [stdout]   11:     0x55c7abd021ca - core::result::Result<T,E>::unwrap::hd4c139a46ae49abe
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/result.rs:800
[INFO] [stdout]   12:     0x55c7abbed13c - mdbook_html_taco::preprocess::cmd::tests::book_example::h5d33b0619a537a41
[INFO] [stdout]                                at src/preprocess/cmd.rs:175
[INFO] [stdout]   13:     0x55c7abbf2112 - mdbook_html_taco::preprocess::cmd::tests::round_trip_write_and_parse_input::h008798233f7593d1
[INFO] [stdout]                                at src/preprocess/cmd.rs:181
[INFO] [stdout]   14:     0x55c7abbf205a - mdbook_html_taco::preprocess::cmd::tests::round_trip_write_and_parse_input::{{closure}}::h13b55cad65fb1d4a
[INFO] [stdout]                                at src/preprocess/cmd.rs:179
[INFO] [stdout]   15:     0x55c7abc4a98e - core::ops::function::FnOnce::call_once::h66a3624b577b35ee
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   16:     0x55c7abfaa39f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9568fda2c3b99042
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   17:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   18:     0x55c7abfc4998 - std::panicking::try::h4b4c6c15836266eb
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   19:     0x55c7abfc4998 - std::panic::catch_unwind::h133691b514d0224c
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   20:     0x55c7abfc4998 - test::run_test::run_test_inner::{{closure}}::h41355d9f207d71fe
[INFO] [stdout]                                at src/libtest/lib.rs:1466
[INFO] [stdout]   21:     0x55c7abf9f815 - std::sys_common::backtrace::__rust_begin_short_backtrace::h7c86e4012abd2d40
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/sys_common/backtrace.rs:77
[INFO] [stdout]   22:     0x55c7abfa3995 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h2ba9d55fec0ea776
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:470
[INFO] [stdout]   23:     0x55c7abfa3995 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hdf89f4d89df3dda3
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:315
[INFO] [stdout]   24:     0x55c7abfa3995 - std::panicking::try::do_call::h59b39c89384b7a2f
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:296
[INFO] [stdout]   25:     0x55c7ac5feb9a - __rust_maybe_catch_panic
[INFO] [stdout]                                at src/libpanic_unwind/lib.rs:82
[INFO] [stdout]   26:     0x55c7abfa3fd2 - std::panicking::try::h9fff34be50f16431
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panicking.rs:275
[INFO] [stdout]   27:     0x55c7abfa3fd2 - std::panic::catch_unwind::h7551856ff7c5e12a
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/panic.rs:394
[INFO] [stdout]   28:     0x55c7abfa3fd2 - std::thread::Builder::spawn_unchecked::{{closure}}::hafea48c774d796e7
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libstd/thread/mod.rs:469
[INFO] [stdout]   29:     0x55c7abfa3fd2 - core::ops::function::FnOnce::call_once{{vtable.shim}}::he5fe7b84ce5a3830
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/libcore/ops/function.rs:231
[INFO] [stdout]   30:     0x55c7ac5e720f - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h55ef432b72ff7a0b
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   31:     0x55c7ac5fdfd0 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h9294a5138530eae1
[INFO] [stdout]                                at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746
[INFO] [stdout]   32:     0x55c7ac5fdfd0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c
[INFO] [stdout]                                at src/libstd/sys_common/thread.rs:13
[INFO] [stdout]   33:     0x55c7ac5fdfd0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:79
[INFO] [stdout]   34:     0x7f8d620674a4 - start_thread
[INFO] [stdout]   35:     0x7f8d61b92d0f - __clone
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     config::tests::can_still_load_the_previous_format
[INFO] [stdout]     config::tests::load_a_complex_config_file
[INFO] [stdout]     preprocess::cmd::tests::round_trip_write_and_parse_input
[INFO] [stdout]     renderer::html_handlebars::helpers::navigation::tests::test_first
[INFO] [stdout]     renderer::html_handlebars::helpers::navigation::tests::test_last
[INFO] [stdout]     renderer::html_handlebars::helpers::navigation::tests::test_next_previous
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 73 passed; 6 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `"docker" "inspect" "04e852b04ba93d5e468759a7bdde79f91785ae9c0ba1532f966dd98daa050d3e"`
[INFO] running `"docker" "rm" "-f" "04e852b04ba93d5e468759a7bdde79f91785ae9c0ba1532f966dd98daa050d3e"`
[INFO] [stdout] 04e852b04ba93d5e468759a7bdde79f91785ae9c0ba1532f966dd98daa050d3e