[INFO] updating cached repository https://github.com/ftilde/ugdb [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] 5f69d9322cecae097f6d50995fe05ce9a25f9d5b [INFO] checking ftilde/ugdb against try#f88e9a4452e792c29632101b348a1df9876d45cd for pr-70087 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fftilde%2Fugdb" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/ftilde/ugdb 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/ftilde/ugdb [INFO] finished tweaking git repo https://github.com/ftilde/ugdb [INFO] tweaked toml for git repo https://github.com/ftilde/ugdb written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/ftilde/ugdb already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+f88e9a4452e792c29632101b348a1df9876d45cd" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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] 5d751a7ac8a559ab3022b9a1fd13cbba3a7c12bd96e5c1179b57f7af53663804 [INFO] running `"docker" "start" "-a" "5d751a7ac8a559ab3022b9a1fd13cbba3a7c12bd96e5c1179b57f7af53663804"` [INFO] [stderr] Compiling serde v1.0.101 [INFO] [stderr] Compiling ndarray v0.8.4 [INFO] [stderr] Checking smallvec v0.3.4 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling plist v0.2.4 [INFO] [stderr] Checking nom v2.2.1 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling cmake v0.1.42 [INFO] [stderr] Compiling onig_sys v68.2.1 [INFO] [stderr] Checking itertools v0.5.10 [INFO] [stderr] Compiling block-padding v0.1.4 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Checking vte v0.3.3 [INFO] [stderr] Checking nix v0.8.1 [INFO] [stderr] Checking unix_socket v0.5.0 [INFO] [stderr] Compiling rand_os v0.1.3 [INFO] [stderr] Checking base64 v0.8.0 [INFO] [stderr] Checking nix v0.13.1 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Checking flate2 v1.0.12 [INFO] [stderr] Checking num-complex v0.1.43 [INFO] [stderr] Checking num-integer v0.1.41 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Checking nix v0.7.0 [INFO] [stderr] Checking chan v0.1.23 [INFO] [stderr] Compiling derive_more v0.14.1 [INFO] [stderr] Compiling structopt-derive v0.2.18 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Checking chrono v0.4.9 [INFO] [stderr] Compiling libgit2-sys v0.6.19 [INFO] [stderr] Checking chan-signal v0.3.3 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Checking flexi_logger v0.11.5 [INFO] [stderr] Checking structopt v0.2.18 [INFO] [stderr] Compiling string_cache_codegen v0.4.4 [INFO] [stderr] Compiling string_cache v0.7.4 [INFO] [stderr] Checking raw_tty v0.1.0 [INFO] [stderr] Checking unsegen v0.2.2 [INFO] [stderr] Checking onig v3.2.2 [INFO] [stderr] Checking unsegen_terminal v0.2.0 [INFO] [stderr] Checking unsegen_jsonviewer v0.2.0 [INFO] [stderr] Checking unsegen_signals v0.2.0 [INFO] [stderr] Checking serde_json v1.0.41 [INFO] [stderr] Checking bincode v1.2.0 [INFO] [stderr] Compiling git2 v0.6.11 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] Compiling toml v0.4.10 [INFO] [stderr] Checking syntect v2.1.0 [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: 0x7f3404595074 - 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: 0x7f3404595074 - 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: 0x7f3404595074 - std::sys_common::backtrace::_print_fmt::hbff8e3b3fa287914 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f3404595074 - ::fmt::h55dc3ba90a10b9b2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f34045cda8c - core::fmt::write::h3733b8e43227b83a [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7f3404586da3 - std::io::Write::write_fmt::h849647cdb56488ce [INFO] [stderr] at src/libstd/io/mod.rs:1427 [INFO] [stderr] 6: 0x7f3404599ee5 - std::sys_common::backtrace::_print::hb55551afabbfdb0c [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f3404599ee5 - std::sys_common::backtrace::print::h8cdfee4c43ff1d8d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f3404599ee5 - std::panicking::default_hook::{{closure}}::h27054589509be60a [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f3404599c32 - std::panicking::default_hook::h604fae1e8c9c8119 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f3404bf88e3 - rustc_driver::report_ice::h7395d771a32782e9 [INFO] [stderr] 11: 0x7f340459a665 - std::panicking::rust_panic_with_hook::h431484e1a8c1ccb3 [INFO] [stderr] at src/libstd/panicking.rs:515 [INFO] [stderr] 12: 0x7f340459a17b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:419 [INFO] [stderr] 13: 0x7f34045ca721 - core::panicking::panic_fmt::h510f2b9967da4a22 [INFO] [stderr] at src/libcore/panicking.rs:111 [INFO] [stderr] 14: 0x7f34045ca66d - core::panicking::panic::h261a1551a9b1ed63 [INFO] [stderr] at src/libcore/panicking.rs:54 [INFO] [stderr] 15: 0x7f3406f82192 - core::ops::function::FnOnce::call_once::h44eade3cae4002b4 [INFO] [stderr] 16: 0x7f3406d3705b - rustc::ty::query::::compute::h63299fe363eb28ff [INFO] [stderr] 17: 0x7f3407129396 - rustc::dep_graph::graph::DepGraph::with_task_impl::h27150d7e7ef5d279 [INFO] [stderr] 18: 0x7f3406c4b158 - rustc::ty::query::plumbing::::get_query::h81ae4a54aa413a12 [INFO] [stderr] 19: 0x7f34071a7842 - rustc::hir::map::Map::get_entry::hd4824deb2bc1d163 [INFO] [stderr] 20: 0x7f34071a92f3 - rustc::hir::map::Map::find::hb2b8e7d3739dc51b [INFO] [stderr] 21: 0x7f3405983126 - rustc_passes::dead::MarkSymbolVisitor::check_def_id::h35de40f5f82f4c95 [INFO] [stderr] 22: 0x7f34058e9f3b - rustc_hir::intravisit::walk_item::hc7406691f06d52a5 [INFO] [stderr] 23: 0x7f3405985aca - rustc_passes::dead::check_crate::hc1788aeda64bb111 [INFO] [stderr] 24: 0x7f3404df0d60 - rustc_session::utils::::time::hda577f417d97b9bf [INFO] [stderr] 25: 0x7f3404e5a6c3 - rustc_interface::passes::analysis::{{closure}}::{{closure}}::h17265b0c0d0ebf00 [INFO] [stderr] 26: 0x7f3404debfb4 - rustc_session::utils::::time::h21981df34c4dceea [INFO] [stderr] 27: 0x7f3404e85534 - rustc_interface::passes::analysis::hf7b16505e8cbe134 [INFO] [stderr] 28: 0x7f3404c05087 - rustc::ty::query::__query_compute::analysis::hab3cf1730a714bb1 [INFO] [stderr] 29: 0x7f3404c6daee - rustc::dep_graph::graph::DepGraph::with_task_impl::h1cf3260cbde798ef [INFO] [stderr] 30: 0x7f3404c474c4 - rustc::ty::query::plumbing::::get_query::h72af941f67f907c3 [INFO] [stderr] 31: 0x7f3404c7d137 - rustc::ty::context::tls::enter_global::h00bd1a436fc837c7 [INFO] [stderr] 32: 0x7f3404c4e704 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h4e35787a250c4a45 [INFO] [stderr] 33: 0x7f3404c0080c - std::sys_common::backtrace::__rust_begin_short_backtrace::h52aa1c8699493dab [INFO] [stderr] 34: 0x7f3404c50dee - core::ops::function::FnOnce::call_once{{vtable.shim}}::h4b2f44a9354b83b7 [INFO] [stderr] 35: 0x7f34045767ff - as core::ops::function::FnOnce>::call_once::he3070f56c62210ce [INFO] [stderr] at /rustc/f88e9a4452e792c29632101b348a1df9876d45cd/src/liballoc/boxed.rs:1017 [INFO] [stderr] 36: 0x7f34045aa1bd - as core::ops::function::FnOnce>::call_once::h5ec69a77dbe1afe1 [INFO] [stderr] at /rustc/f88e9a4452e792c29632101b348a1df9876d45cd/src/liballoc/boxed.rs:1017 [INFO] [stderr] 37: 0x7f34045aa1bd - std::sys_common::thread::start_thread::hbeaf55a5dcb6cd4e [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 38: 0x7f34045aa1bd - std::sys::unix::thread::Thread::new::thread_start::hd82126039c1bb684 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:80 [INFO] [stderr] 39: 0x7f34043106db - start_thread [INFO] [stderr] 40: 0x7f3403c2d88f - __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" "5d751a7ac8a559ab3022b9a1fd13cbba3a7c12bd96e5c1179b57f7af53663804"` [INFO] running `"docker" "rm" "-f" "5d751a7ac8a559ab3022b9a1fd13cbba3a7c12bd96e5c1179b57f7af53663804"` [INFO] [stdout] 5d751a7ac8a559ab3022b9a1fd13cbba3a7c12bd96e5c1179b57f7af53663804