[INFO] fetching crate jsyc-compiler 0.1.0...
[INFO] testing jsyc-compiler-0.1.0 against try#eafdee2dfae8c2233b74f98b123308be7ccefcc6 for pr-79296
[INFO] extracting crate jsyc-compiler 0.1.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate jsyc-compiler 0.1.0 on toolchain eafdee2dfae8c2233b74f98b123308be7ccefcc6
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate jsyc-compiler 0.1.0
[INFO] finished tweaking crates.io crate jsyc-compiler 0.1.0
[INFO] tweaked toml for crates.io crate jsyc-compiler 0.1.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unic-ucd-ident v0.7.0
[INFO] [stderr]   Downloaded ress v0.6.3
[INFO] [stderr]   Downloaded resast v0.2.1
[INFO] [stderr]   Downloaded ressa v0.5.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 52d0ee0d81948cf168f2956058a4cdf25ea8a0a58cac6a7ae2fa2112335cabfe
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "52d0ee0d81948cf168f2956058a4cdf25ea8a0a58cac6a7ae2fa2112335cabfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "52d0ee0d81948cf168f2956058a4cdf25ea8a0a58cac6a7ae2fa2112335cabfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52d0ee0d81948cf168f2956058a4cdf25ea8a0a58cac6a7ae2fa2112335cabfe", kill_on_drop: false }`
[INFO] [stdout] 52d0ee0d81948cf168f2956058a4cdf25ea8a0a58cac6a7ae2fa2112335cabfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+eafdee2dfae8c2233b74f98b123308be7ccefcc6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e5eb18c12a26d2b07af4d92efdfcc92c8e152abd726cfda38d6b18a29e7aa38c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "e5eb18c12a26d2b07af4d92efdfcc92c8e152abd726cfda38d6b18a29e7aa38c", kill_on_drop: false }`
[INFO] [stderr]    Compiling unic-char-range v0.7.0
[INFO] [stderr]    Compiling unic-common v0.7.0
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling gimli v0.23.0
[INFO] [stderr]    Compiling termcolor v1.1.2
[INFO] [stderr]    Compiling rustc-demangle v0.1.18
[INFO] [stderr]    Compiling object v0.22.0
[INFO] [stderr]    Compiling resast v0.2.1
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling unic-ucd-version v0.7.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling unic-char-property v0.7.0
[INFO] [stderr]    Compiling unic-ucd-ident v0.7.0
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling addr2line v0.14.0
[INFO] [stderr]    Compiling backtrace v0.3.55
[INFO] [stderr]    Compiling ress v0.6.3
[INFO] [stderr] thread 'rustc' panicked at 'Box<Any>', compiler/rustc_errors/src/lib.rs:958:9
[INFO] [stdout] error: internal compiler error: compiler/rustc_traits/src/normalize_erasing_regions.rs:37:32: could not fully normalize `combine::combinator::Y<<impl combine::Parser as combine::Parser>::PartialState, <impl combine::Parser as combine::Parser>::PartialState>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f11da61dea0 - std::backtrace_rs::backtrace::libunwind::trace::h95fc93571932622e
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7f11da61dea0 - std::backtrace_rs::backtrace::trace_unsynchronized::h4d0b90afc33151fd
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f11da61dea0 - std::sys_common::backtrace::_print_fmt::h93d302d001a3bf01
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f11da61dea0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h7881e3a580134f9a
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7f11da69126c - core::fmt::write::h1857a60b204f1b6a
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]    5:     0x7f11da60f832 - std::io::Write::write_fmt::h24485de26f355188
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/io/mod.rs:1519:15
[INFO] [stderr]    6:     0x7f11da622095 - std::sys_common::backtrace::_print::h3e3f9fed81bc11e9
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7f11da622095 - std::sys_common::backtrace::print::hd22ac23fed5071c8
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7f11da622095 - std::panicking::default_hook::{{closure}}::h1647bdcf68060e17
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7f11da621bea - std::panicking::default_hook::hb08853b392b9404b
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7f11daefce78 - rustc_driver::report_ice::h05119aa021102e04
[INFO] [stderr]   11:     0x7f11da622996 - std::panicking::rust_panic_with_hook::h3624ee29da369ede
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/panicking.rs:595:17
[INFO] [stderr]   12:     0x7f11de06fb6d - std::panicking::begin_panic::{{closure}}::h01afa574538ad29b
[INFO] [stderr]   13:     0x7f11de06fa66 - std::sys_common::backtrace::__rust_end_short_backtrace::h1a585998224d9ae0
[INFO] [stderr]   14:     0x7f11de079b1f - std::panicking::begin_panic::h03af9acc8a85e31c
[INFO] [stderr]   15:     0x7f11de0b286c - rustc_errors::HandlerInner::bug::hcaaf59cd7aedcc3b
[INFO] [stderr]   16:     0x7f11de0b0ef0 - rustc_errors::Handler::bug::h709d540b8038ac8d
[INFO] [stderr]   17:     0x7f11dd9976a4 - rustc_middle::util::bug::opt_span_bug_fmt::{{closure}}::h38c3b9ad86fe9a39
[INFO] [stderr]   18:     0x7f11dd9961cb - rustc_middle::ty::context::tls::with_opt::{{closure}}::hdeda921815f109f4
[INFO] [stderr]   19:     0x7f11dd996172 - rustc_middle::ty::context::tls::with_opt::h0d7df95a1797b43b
[INFO] [stderr]   20:     0x7f11dd9975c9 - rustc_middle::util::bug::opt_span_bug_fmt::h144e7c8ac8b855d8
[INFO] [stderr]   21:     0x7f11dd99753e - rustc_middle::util::bug::bug_fmt::h79c1ff17c148fdec
[INFO] [stderr]   22:     0x7f11db5d64fa - rustc_infer::infer::InferCtxtBuilder::enter::h1be782fe935052cb
[INFO] [stderr]   23:     0x7f11db63cc44 - rustc_traits::normalize_erasing_regions::normalize_generic_arg_after_erasing_regions::h5ff738f97774a725
[INFO] [stderr]   24:     0x7f11dd87daee - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task::h5d48722a0a0c80eb
[INFO] [stderr]   25:     0x7f11ddc05647 - rustc_data_structures::stack::ensure_sufficient_stack::h210efd27a6d823c1
[INFO] [stderr]   26:     0x7f11dde0d190 - rustc_query_system::query::plumbing::get_query_impl::h2e2de92b18e95305
[INFO] [stderr]   27:     0x7f11dddb07bb - <rustc_middle::ty::normalize_erasing_regions::NormalizeAfterErasingRegionsFolder as rustc_middle::ty::fold::TypeFolder>::fold_ty::h42a8100304c8d00d
[INFO] [stderr]   28:     0x7f11dc73890d - rustc_middle::ty::util::<impl rustc_middle::ty::TyS>::needs_drop::h3bf98dd77bddea19
[INFO] [stderr]   29:     0x7f11dc762d42 - rustc_mir::dataflow::drop_flag_effects::on_all_children_bits::on_all_children_bits::hcef33b035f873e16
[INFO] [stderr]   30:     0x7f11dc693c44 - <rustc_mir::transform::elaborate_drops::ElaborateDrops as rustc_mir::transform::MirPass>::run_pass::hf610c436c60ba33e
[INFO] [stderr]   31:     0x7f11dc73159d - rustc_mir::transform::run_passes::h6385518e984789a2
[INFO] [stderr]   32:     0x7f11dc732aad - rustc_mir::transform::run_post_borrowck_cleanup_passes::haff7b1b04a1d2f58
[INFO] [stderr]   33:     0x7f11dc732741 - rustc_mir::transform::mir_drops_elaborated_and_const_checked::h13d939f742f5de94
[INFO] [stderr]   34:     0x7f11dc6a3371 - rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::mir_drops_elaborated_and_const_checked>::compute::h7db61ffddbe6ccfb
[INFO] [stderr]   35:     0x7f11dc5a099b - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task::h94674b69f5b04fb4
[INFO] [stderr]   36:     0x7f11dc658fb8 - rustc_data_structures::stack::ensure_sufficient_stack::hb56b22e369539a9a
[INFO] [stderr]   37:     0x7f11dc3fca2a - rustc_query_system::query::plumbing::get_query_impl::h46239af21222757d
[INFO] [stderr]   38:     0x7f11dc73328a - rustc_mir::transform::optimized_mir::h29372ea011216507
[INFO] [stderr]   39:     0x7f11dcc44b92 - rustc_middle::ty::query::<impl rustc_query_system::query::config::QueryAccessors<rustc_middle::ty::context::TyCtxt> for rustc_middle::ty::query::queries::optimized_mir>::compute::ha06a044e07dddbf2
[INFO] [stderr]   40:     0x7f11dcde7a8d - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task::h013fb54e307cb5dc
[INFO] [stderr]   41:     0x7f11dce0ad24 - rustc_data_structures::stack::ensure_sufficient_stack::h8f955b0d5a124c8d
[INFO] [stderr]   42:     0x7f11dcd769a9 - rustc_query_system::query::plumbing::get_query_impl::h60f072c04be77ab7
[INFO] [stderr]   43:     0x7f11dcc66e87 - rustc_metadata::rmeta::encoder::EncodeContext::encode_optimized_mir::hdf23e37ca96094db
[INFO] [stderr]   44:     0x7f11dcc6b56b - <rustc_metadata::rmeta::encoder::EncodeContext as rustc_hir::intravisit::Visitor>::visit_item::h3933517169b87f90
[INFO] [stderr]   45:     0x7f11dcca3ce7 - rustc_hir::hir::Crate::visit_all_item_likes::h9a8ba984c80611ee
[INFO] [stderr]   46:     0x7f11dcc62f90 - rustc_metadata::rmeta::encoder::EncodeContext::encode_crate_root::h920ff8c4946ab83f
[INFO] [stderr]   47:     0x7f11dcc6f74c - rustc_metadata::rmeta::encoder::encode_metadata_impl::hf9b8c81f39041186
[INFO] [stderr]   48:     0x7f11dcccfafc - rustc_data_structures::sync::join::h3145a0c46df96e05
[INFO] [stderr]   49:     0x7f11dce35170 - rustc_metadata::rmeta::decoder::cstore_impl::<impl rustc_middle::middle::cstore::CrateStore for rustc_metadata::creader::CStore>::encode_metadata::h721b423d082f04a3
[INFO] [stderr]   50:     0x7f11dd9e9180 - rustc_middle::ty::context::TyCtxt::encode_metadata::hfd6890984f4d1d28
[INFO] [stderr]   51:     0x7f11db12d8e6 - rustc_interface::passes::QueryContext::enter::h7df0830391e5143d
[INFO] [stderr]   52:     0x7f11db16bd13 - rustc_interface::queries::Queries::ongoing_codegen::h4ee607554285403d
[INFO] [stderr]   53:     0x7f11daf11973 - std::sys_common::backtrace::__rust_begin_short_backtrace::h41350f921b918a37
[INFO] [stderr]   54:     0x7f11dae7e0ea - core::ops::function::FnOnce::call_once{{vtable.shim}}::h55ca41067c59ea11
[INFO] [stderr]   55:     0x7f11da631c5a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h5446ed3fdb82006e
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stderr]   56:     0x7f11da631c5a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h62a21a889329a3f2
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/alloc/src/boxed.rs:1318:9
[INFO] [stderr]   57:     0x7f11da631c5a - std::sys::unix::thread::Thread::new::thread_start::h62402416daf174b6
[INFO] [stderr]                                at /rustc/eafdee2dfae8c2233b74f98b123308be7ccefcc6/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stderr]   58:     0x7f11da549609 - start_thread
[INFO] [stderr]   59:     0x7f11da45d293 - clone
[INFO] [stderr]   60:                0x0 - <unknown>
[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/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.50.0-nightly (eafdee2df 2020-11-22) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: -C embed-bitcode=no -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 [normalize_generic_arg_after_erasing_regions] normalizing `combine::combinator::Y<<impl combine::Parser as combine::Parser>::PartialState, <impl combine::Parser as combine::Parser>::PartialState>`
[INFO] [stderr] #1 [mir_drops_elaborated_and_const_checked] elaborating drops for `<tokens::token<I> as combine::Parser>::parse_mode_impl`
[INFO] [stderr] #2 [optimized_mir] optimizing MIR for `<tokens::token<I> as combine::Parser>::parse_mode_impl`
[INFO] [stderr] end of query stack
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ress`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `Command { std: "docker" "inspect" "e5eb18c12a26d2b07af4d92efdfcc92c8e152abd726cfda38d6b18a29e7aa38c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e5eb18c12a26d2b07af4d92efdfcc92c8e152abd726cfda38d6b18a29e7aa38c", kill_on_drop: false }`
[INFO] [stdout] e5eb18c12a26d2b07af4d92efdfcc92c8e152abd726cfda38d6b18a29e7aa38c