[INFO] updating cached repository https://github.com/FreeMasen/mdbook-presentation-preprocessor [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 91d74c6cb87fb301e29354220031594877918299 [INFO] checking FreeMasen/mdbook-presentation-preprocessor against try#f88e9a4452e792c29632101b348a1df9876d45cd for pr-70087 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FFreeMasen%2Fmdbook-presentation-preprocessor" "/workspace/builds/worker-7/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/FreeMasen/mdbook-presentation-preprocessor on toolchain f88e9a4452e792c29632101b348a1df9876d45cd [INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/FreeMasen/mdbook-presentation-preprocessor [INFO] finished tweaking git repo https://github.com/FreeMasen/mdbook-presentation-preprocessor [INFO] tweaked toml for git repo https://github.com/FreeMasen/mdbook-presentation-preprocessor written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/FreeMasen/mdbook-presentation-preprocessor already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "check" "--frozen" "--all" "--all-targets"` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 30a27257cbf82c4fa9c7af5f3676210b38a43b404f7140e791de4644007cb5f6 [INFO] running `"docker" "start" "-a" "30a27257cbf82c4fa9c7af5f3676210b38a43b404f7140e791de4644007cb5f6"` [INFO] [stderr] Compiling libc v0.2.60 [INFO] [stderr] Compiling syn v0.15.43 [INFO] [stderr] Compiling typenum v1.10.0 [INFO] [stderr] Checking safemem v0.3.1 [INFO] [stderr] Compiling pulldown-cmark v0.5.3 [INFO] [stderr] Checking open v1.3.1 [INFO] [stderr] Compiling unicase v1.4.2 [INFO] [stderr] Compiling unicase v2.4.0 [INFO] [stderr] Compiling error-chain v0.12.1 [INFO] [stderr] Compiling pest v2.1.1 [INFO] [stderr] Checking byteorder v1.3.2 [INFO] [stderr] Checking memchr v2.2.1 [INFO] [stderr] Checking bitflags v1.1.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Checking aho-corasick v0.7.6 [INFO] [stderr] Checking base64 v0.9.3 [INFO] [stderr] Compiling phf_shared v0.7.24 [INFO] [stderr] Compiling pest_meta v2.1.1 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking getrandom v0.1.8 [INFO] [stderr] Checking backtrace-sys v0.1.31 [INFO] [stderr] Checking num_cpus v1.10.1 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking inotify-sys v0.1.3 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking filetime v0.2.5 [INFO] [stderr] Checking phf v0.7.24 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking backtrace v0.3.34 [INFO] [stderr] Checking rand_core v0.5.0 [INFO] [stderr] Checking regex v1.2.1 [INFO] [stderr] Checking chrono v0.4.7 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Checking hyper v0.10.16 [INFO] [stderr] Checking inotify v0.6.1 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking rand v0.6.5 [INFO] [stderr] Checking rand_chacha v0.2.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking rand v0.7.0 [INFO] [stderr] Checking sha-1 v0.8.1 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking notify v4.0.12 [INFO] [stderr] Checking ws v0.8.1 [INFO] [stderr] Compiling phf_codegen v0.7.24 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling mime_guess v1.8.7 [INFO] [stderr] Checking tempfile v3.1.0 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling darling_core v0.8.6 [INFO] [stderr] Compiling synstructure v0.10.2 [INFO] [stderr] Compiling pest_generator v2.1.0 [INFO] [stderr] Compiling serde_derive v1.0.98 [INFO] [stderr] Compiling html5ever v0.23.0 [INFO] [stderr] Compiling strum_macros v0.15.0 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking iron v0.6.0 [INFO] [stderr] Compiling failure_derive v0.1.5 [INFO] [stderr] Checking mount v0.4.0 [INFO] [stderr] Compiling darling_macro v0.8.6 [INFO] [stderr] Checking staticfile v0.5.0 [INFO] [stderr] Checking failure v0.1.5 [INFO] [stderr] Compiling darling v0.8.6 [INFO] [stderr] Compiling toml-query_derive v0.9.0 [INFO] [stderr] Checking serde v1.0.98 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Checking hashbrown v0.5.0 [INFO] [stderr] Checking toml v0.5.1 [INFO] [stderr] Checking docopt v1.1.0 [INFO] [stderr] thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src/librustc/hir/mod.rs:81:37 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f1309e38074 - backtrace::backtrace::libunwind::trace::h38165ce57912732f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7f1309e38074 - backtrace::backtrace::trace_unsynchronized::hd57d5ffed9185e53 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f1309e38074 - std::sys_common::backtrace::_print_fmt::hbff8e3b3fa287914 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f1309e38074 - ::fmt::h55dc3ba90a10b9b2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f1309e70a8c - core::fmt::write::h3733b8e43227b83a [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7f1309e29da3 - std::io::Write::write_fmt::h849647cdb56488ce [INFO] [stderr] at src/libstd/io/mod.rs:1427 [INFO] [stderr] 6: 0x7f1309e3cee5 - std::sys_common::backtrace::_print::hb55551afabbfdb0c [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f1309e3cee5 - std::sys_common::backtrace::print::h8cdfee4c43ff1d8d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f1309e3cee5 - std::panicking::default_hook::{{closure}}::h27054589509be60a [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f1309e3cc32 - std::panicking::default_hook::h604fae1e8c9c8119 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f130a49b8e3 - rustc_driver::report_ice::h7395d771a32782e9 [INFO] [stderr] 11: 0x7f1309e3d665 - std::panicking::rust_panic_with_hook::h431484e1a8c1ccb3 [INFO] [stderr] at src/libstd/panicking.rs:515 [INFO] [stderr] 12: 0x7f1309e3d17b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:419 [INFO] [stderr] 13: 0x7f1309e6d721 - core::panicking::panic_fmt::h510f2b9967da4a22 [INFO] [stderr] at src/libcore/panicking.rs:111 [INFO] [stderr] 14: 0x7f1309e6d66d - core::panicking::panic::h261a1551a9b1ed63 [INFO] [stderr] at src/libcore/panicking.rs:54 [INFO] [stderr] 15: 0x7f130c825192 - core::ops::function::FnOnce::call_once::h44eade3cae4002b4 [INFO] [stderr] 16: 0x7f130c5da05b - rustc::ty::query::::compute::h63299fe363eb28ff [INFO] [stderr] 17: 0x7f130c9cc396 - rustc::dep_graph::graph::DepGraph::with_task_impl::h27150d7e7ef5d279 [INFO] [stderr] 18: 0x7f130c4ee158 - rustc::ty::query::plumbing::::get_query::h81ae4a54aa413a12 [INFO] [stderr] 19: 0x7f130ca4a842 - rustc::hir::map::Map::get_entry::hd4824deb2bc1d163 [INFO] [stderr] 20: 0x7f130ca4c2f3 - rustc::hir::map::Map::find::hb2b8e7d3739dc51b [INFO] [stderr] 21: 0x7f130b226126 - rustc_passes::dead::MarkSymbolVisitor::check_def_id::h35de40f5f82f4c95 [INFO] [stderr] 22: 0x7f130b18cf3b - rustc_hir::intravisit::walk_item::hc7406691f06d52a5 [INFO] [stderr] 23: 0x7f130b228aca - rustc_passes::dead::check_crate::hc1788aeda64bb111 [INFO] [stderr] 24: 0x7f130a693d60 - rustc_session::utils::::time::hda577f417d97b9bf [INFO] [stderr] 25: 0x7f130a6fd6c3 - rustc_interface::passes::analysis::{{closure}}::{{closure}}::h17265b0c0d0ebf00 [INFO] [stderr] 26: 0x7f130a68efb4 - rustc_session::utils::::time::h21981df34c4dceea [INFO] [stderr] 27: 0x7f130a728534 - rustc_interface::passes::analysis::hf7b16505e8cbe134 [INFO] [stderr] 28: 0x7f130a4a8087 - rustc::ty::query::__query_compute::analysis::hab3cf1730a714bb1 [INFO] [stderr] 29: 0x7f130a510aee - rustc::dep_graph::graph::DepGraph::with_task_impl::h1cf3260cbde798ef [INFO] [stderr] 30: 0x7f130a4ea4c4 - rustc::ty::query::plumbing::::get_query::h72af941f67f907c3 [INFO] [stderr] 31: 0x7f130a520137 - rustc::ty::context::tls::enter_global::h00bd1a436fc837c7 [INFO] [stderr] 32: 0x7f130a4f1704 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h4e35787a250c4a45 [INFO] [stderr] 33: 0x7f130a4a380c - std::sys_common::backtrace::__rust_begin_short_backtrace::h52aa1c8699493dab [INFO] [stderr] 34: 0x7f130a4f3dee - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4b2f44a9354b83b7 [INFO] [stderr] 35: 0x7f1309e197ff - as core::ops::function::FnOnce>::call_once::he3070f56c62210ce [INFO] [stderr] at /rustc/f88e9a4452e792c29632101b348a1df9876d45cd/src/liballoc/boxed.rs:1017 [INFO] [stderr] 36: 0x7f1309e4d1bd - as core::ops::function::FnOnce>::call_once::h5ec69a77dbe1afe1 [INFO] [stderr] at /rustc/f88e9a4452e792c29632101b348a1df9876d45cd/src/liballoc/boxed.rs:1017 [INFO] [stderr] 37: 0x7f1309e4d1bd - std::sys_common::thread::start_thread::hbeaf55a5dcb6cd4e [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 38: 0x7f1309e4d1bd - std::sys::unix::thread::Thread::new::thread_start::hd82126039c1bb684 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:80 [INFO] [stderr] 39: 0x7f1309bb36db - start_thread [INFO] [stderr] 40: 0x7f13094d088f - __clone [INFO] [stderr] 41: 0x0 - [INFO] [stderr] [INFO] [stderr] error: internal compiler error: unexpected panic [INFO] [stderr] [INFO] [stderr] note: the compiler unexpectedly panicked. this is a bug. [INFO] [stderr] [INFO] [stderr] note: we would appreciate a bug report: https://github.com/rust-lang/rust/blob/master/CONTRIBUTING.md#bug-reports [INFO] [stderr] [INFO] [stderr] note: rustc 1.44.0-nightly (f88e9a445 2020-03-18) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C debuginfo=2 --crate-type lib [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [hir_owner] processing `regex` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `docopt`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "30a27257cbf82c4fa9c7af5f3676210b38a43b404f7140e791de4644007cb5f6"` [INFO] running `"docker" "rm" "-f" "30a27257cbf82c4fa9c7af5f3676210b38a43b404f7140e791de4644007cb5f6"` [INFO] [stdout] 30a27257cbf82c4fa9c7af5f3676210b38a43b404f7140e791de4644007cb5f6