[INFO] fetching crate jsyc-compiler 0.1.0...
[INFO] testing jsyc-compiler-0.1.0 against beta-2021-01-01 for beta-1.50-1
[INFO] extracting crate jsyc-compiler 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate jsyc-compiler 0.1.0 on toolchain beta-2021-01-01
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-01-01" "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 resast v0.2.1
[INFO] [stderr]   Downloaded ressa v0.5.2
[INFO] [stderr]   Downloaded ress v0.6.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05ba1d7a53e23077043c61b8fcb1b574ac72d56d55772267f75ea8cf09c08349
[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" "05ba1d7a53e23077043c61b8fcb1b574ac72d56d55772267f75ea8cf09c08349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05ba1d7a53e23077043c61b8fcb1b574ac72d56d55772267f75ea8cf09c08349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05ba1d7a53e23077043c61b8fcb1b574ac72d56d55772267f75ea8cf09c08349", kill_on_drop: false }`
[INFO] [stdout] 05ba1d7a53e23077043c61b8fcb1b574ac72d56d55772267f75ea8cf09c08349
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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=warn" "-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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-01-01" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 9da12529692645ea72fb5680a681b14a6557365e8a9b11175b7a421aa625cdde
[INFO] running `Command { std: "docker" "start" "-a" "9da12529692645ea72fb5680a681b14a6557365e8a9b11175b7a421aa625cdde", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling unic-common v0.7.0
[INFO] [stderr]    Compiling unic-char-range v0.7.0
[INFO] [stderr]    Compiling resast v0.2.1
[INFO] [stderr]    Compiling combine v3.8.1
[INFO] [stderr]    Compiling unic-char-property v0.7.0
[INFO] [stderr]    Compiling unic-ucd-version v0.7.0
[INFO] [stderr]    Compiling unic-ucd-ident v0.7.0
[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:43:32: 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:     0x7fde17b5b877 - std::backtrace_rs::backtrace::libunwind::trace::hcd6e187547b8deec
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]    1:     0x7fde17b5b877 - std::backtrace_rs::backtrace::trace_unsynchronized::hde10036eb783fbc7
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7fde17b5b877 - std::sys_common::backtrace::_print_fmt::h63987b8f86dfc82a
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7fde17b5b877 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hc33f3ac4cc9c4196
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]    4:     0x7fde17bcccfc - core::fmt::write::hfdcdeb08fb2b3afa
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/core/src/fmt/mod.rs:1078:17
[INFO] [stderr]    5:     0x7fde17b4dab2 - std::io::Write::write_fmt::h83a843778fa2a815
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/io/mod.rs:1519:15
[INFO] [stderr]    6:     0x7fde17b5f565 - std::sys_common::backtrace::_print::hf179508b01f66878
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]    7:     0x7fde17b5f565 - std::sys_common::backtrace::print::ha97d11adb39266a6
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]    8:     0x7fde17b5f565 - std::panicking::default_hook::{{closure}}::h8da9985a98bd1582
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:208:50
[INFO] [stderr]    9:     0x7fde17b5f0ba - std::panicking::default_hook::hbc0ee792993c2ef2
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:225:9
[INFO] [stderr]   10:     0x7fde183c4b3b - rustc_driver::report_ice::haf4c9c46517bc880
[INFO] [stderr]   11:     0x7fde17b5fe66 - std::panicking::rust_panic_with_hook::h9fb9cda33a10f084
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/panicking.rs:595:17
[INFO] [stderr]   12:     0x7fde19c1eb0b - std::panicking::begin_panic::{{closure}}::hcc5e925536464868
[INFO] [stderr]   13:     0x7fde19c1e9e6 - std::sys_common::backtrace::__rust_end_short_backtrace::h5587c92af17447d0
[INFO] [stderr]   14:     0x7fde19c1eaaf - std::panicking::begin_panic::hae02e6863d646b75
[INFO] [stderr]   15:     0x7fde19c408a1 - rustc_errors::HandlerInner::bug::h4124f71f603832ef
[INFO] [stderr]   16:     0x7fde19c40370 - rustc_errors::Handler::bug::hdbfe3c2dce784a36
[INFO] [stderr]   17:     0x7fde1981d001 - rustc_middle::ty::context::tls::with_opt::h9d7be1ce247039c4
[INFO] [stderr]   18:     0x7fde1981f9c0 - rustc_middle::util::bug::opt_span_bug_fmt::h87844eca3ed5bad1
[INFO] [stderr]   19:     0x7fde1981f936 - rustc_middle::util::bug::bug_fmt::hc1cf41c4169acf4b
[INFO] [stderr]   20:     0x7fde19e2cf3f - rustc_infer::infer::InferCtxtBuilder::enter::h24f2a92bfd29d606
[INFO] [stderr]   21:     0x7fde19e3196a - rustc_traits::normalize_erasing_regions::normalize_generic_arg_after_erasing_regions::hcb6b86b40018995a
[INFO] [stderr]   22:     0x7fde1a76f8db - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::he5e2437ca4f0ed98
[INFO] [stderr]   23:     0x7fde1a723ff0 - rustc_data_structures::stack::ensure_sufficient_stack::hc8cb99bfb1a3c253
[INFO] [stderr]   24:     0x7fde1a7941a3 - rustc_query_system::query::plumbing::get_query_impl::h07ede26fb7755169
[INFO] [stderr]   25:     0x7fde1a6d7deb - <rustc_middle::ty::normalize_erasing_regions::NormalizeAfterErasingRegionsFolder as rustc_middle::ty::fold::TypeFolder>::fold_ty::h9078790acc59396b
[INFO] [stderr]   26:     0x7fde1a33d3e7 - rustc_middle::ty::util::<impl rustc_middle::ty::TyS>::needs_drop::h4c4915dc6e3c9834
[INFO] [stderr]   27:     0x7fde1a35958f - rustc_mir::dataflow::drop_flag_effects::on_all_children_bits::on_all_children_bits::hb07d06ded86e7291
[INFO] [stderr]   28:     0x7fde1a2c5409 - <rustc_mir::transform::elaborate_drops::ElaborateDrops as rustc_mir::transform::MirPass>::run_pass::hb0142eb77fb8243d
[INFO] [stderr]   29:     0x7fde1a31b6a9 - rustc_mir::transform::run_passes::ha405fc6786589398
[INFO] [stderr]   30:     0x7fde1a31d479 - rustc_mir::transform::run_post_borrowck_cleanup_passes::hadd2ce3ce3257c74
[INFO] [stderr]   31:     0x7fde1a31d053 - rustc_mir::transform::mir_drops_elaborated_and_const_checked::h5c6bb17497fec2c6
[INFO] [stderr]   32:     0x7fde1aeb6375 - 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::ha07e6f5d3b94be0c
[INFO] [stderr]   33:     0x7fde1a25e71b - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::hd4167b7ab8965af1
[INFO] [stderr]   34:     0x7fde1a290c32 - rustc_data_structures::stack::ensure_sufficient_stack::hd080a4c51aa604d0
[INFO] [stderr]   35:     0x7fde1a233757 - rustc_query_system::query::plumbing::get_query_impl::h390d9c596ac52212
[INFO] [stderr]   36:     0x7fde1a31de8a - rustc_mir::transform::optimized_mir::hccb69f46637ca7ca
[INFO] [stderr]   37:     0x7fde1aff3643 - 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::ha2bf9fd8c99b0237
[INFO] [stderr]   38:     0x7fde1b070439 - rustc_query_system::dep_graph::graph::DepGraph<K>::with_task_impl::h10a54e184ecf2cd1
[INFO] [stderr]   39:     0x7fde1b02fbc5 - rustc_data_structures::stack::ensure_sufficient_stack::h468fab0c839d1c95
[INFO] [stderr]   40:     0x7fde1a430f80 - rustc_query_system::query::plumbing::get_query_impl::h03e173f743bdccc8
[INFO] [stderr]   41:     0x7fde1a3f9e9f - rustc_metadata::rmeta::encoder::EncodeContext::encode_optimized_mir::ha3a62100ffa39257
[INFO] [stderr]   42:     0x7fde1a3fd8b6 - <rustc_metadata::rmeta::encoder::EncodeContext as rustc_hir::intravisit::Visitor>::visit_item::h6eebd8114c8528a6
[INFO] [stderr]   43:     0x7fde1a47d45d - rustc_hir::hir::Crate::visit_all_item_likes::hd73b7770755258b4
[INFO] [stderr]   44:     0x7fde1a3f63c1 - rustc_metadata::rmeta::encoder::EncodeContext::encode_crate_root::h61204a4e2cdf2c12
[INFO] [stderr]   45:     0x7fde1b0032a1 - rustc_metadata::rmeta::encoder::encode_metadata_impl::hbf5ad4d0693e5395
[INFO] [stderr]   46:     0x7fde1b014bec - rustc_data_structures::sync::join::h2ae38face2fb7147
[INFO] [stderr]   47:     0x7fde1b08fa0e - rustc_metadata::rmeta::decoder::cstore_impl::<impl rustc_middle::middle::cstore::CrateStore for rustc_metadata::creader::CStore>::encode_metadata::hb1163b5712023cc8
[INFO] [stderr]   48:     0x7fde1b334e24 - rustc_middle::ty::context::TyCtxt::encode_metadata::hccf1a6d36e8b3595
[INFO] [stderr]   49:     0x7fde1a8d3f73 - rustc_interface::passes::QueryContext::enter::h6200a5fa50d18557
[INFO] [stderr]   50:     0x7fde1a8e6346 - rustc_interface::queries::Queries::ongoing_codegen::h49cd6d6eed048a40
[INFO] [stderr]   51:     0x7fde1a873dc0 - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::hf43f6bfddde80a8d
[INFO] [stderr]   52:     0x7fde1a869394 - rustc_span::with_source_map::h4ebecaf586788cc4
[INFO] [stderr]   53:     0x7fde1a874c8a - rustc_interface::interface::create_compiler_and_run::h721d23f55b14a45d
[INFO] [stderr]   54:     0x7fde1a86a028 - std::sys_common::backtrace::__rust_begin_short_backtrace::h5231acefb97021a0
[INFO] [stderr]   55:     0x7fde1a84c6aa - core::ops::function::FnOnce::call_once{{vtable.shim}}::h97103f0a8614a8c1
[INFO] [stderr]   56:     0x7fde17b7019a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hdbb9ff71143eaad6
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9
[INFO] [stderr]   57:     0x7fde17b7019a - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h9dbde95cefb8368c
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/alloc/src/boxed.rs:1328:9
[INFO] [stderr]   58:     0x7fde17b7019a - std::sys::unix::thread::Thread::new::thread_start::hc76032c38affd972
[INFO] [stderr]                                at /rustc/25b3db3aa752d9d4633c983c9d4bf5e48f9baff1/library/std/src/sys/unix/thread.rs:71:17
[INFO] [stderr]   59:     0x7fde17a80609 - start_thread
[INFO] [stderr]   60:     0x7fde17994293 - clone
[INFO] [stderr]   61:                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-beta.2 (25b3db3aa 2020-12-31) 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" "9da12529692645ea72fb5680a681b14a6557365e8a9b11175b7a421aa625cdde", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9da12529692645ea72fb5680a681b14a6557365e8a9b11175b7a421aa625cdde", kill_on_drop: false }`
[INFO] [stdout] 9da12529692645ea72fb5680a681b14a6557365e8a9b11175b7a421aa625cdde