[INFO] updating cached repository https://github.com/wuminzhe/matching-rs [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] c74254d0e4d972c8b6735cd068d5f349e92683c5 [INFO] checking wuminzhe/matching-rs against master#7f940ef5d91b53e889f111f27e00849f2f5ae4a2 for pr-72493 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwuminzhe%2Fmatching-rs" "/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/wuminzhe/matching-rs on toolchain 7f940ef5d91b53e889f111f27e00849f2f5ae4a2 [INFO] running `"/workspace/cargo-home/bin/cargo" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/wuminzhe/matching-rs [INFO] finished tweaking git repo https://github.com/wuminzhe/matching-rs [INFO] tweaked toml for git repo https://github.com/wuminzhe/matching-rs written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/wuminzhe/matching-rs already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "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-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" "+7f940ef5d91b53e889f111f27e00849f2f5ae4a2" "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] a112d78dbf3a7315c29ad3df62e238ab75996b39ae3388676e0cde8e125736d4 [INFO] running `"docker" "start" "-a" "a112d78dbf3a7315c29ad3df62e238ab75996b39ae3388676e0cde8e125736d4"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling libc v0.2.58 [INFO] [stderr] Compiling syn v0.15.39 [INFO] [stderr] Compiling log v0.4.7 [INFO] [stderr] Compiling semver-parser v0.7.0 [INFO] [stderr] Compiling regex v1.1.7 [INFO] [stderr] Compiling cfg-if v0.1.9 [INFO] [stderr] Compiling smallvec v0.6.10 [INFO] [stderr] Compiling itoa v0.4.4 [INFO] [stderr] Compiling ucd-util v0.1.3 [INFO] [stderr] Checking void v1.0.2 [INFO] [stderr] Compiling same-file v1.0.5 [INFO] [stderr] Compiling cookie-factory v0.2.4 [INFO] [stderr] Checking byte-tools v0.3.1 [INFO] [stderr] Compiling openssl v0.10.23 [INFO] [stderr] Checking static_assertions v0.2.5 [INFO] [stderr] Compiling crc32fast v1.2.0 [INFO] [stderr] Checking fake-simd v0.1.2 [INFO] [stderr] Checking uuid v0.7.4 [INFO] [stderr] Compiling mysql v16.0.2 [INFO] [stderr] Checking sha1 v0.6.0 [INFO] [stderr] Checking bit-vec v0.5.1 [INFO] [stderr] Checking intrusive-collections v0.6.8 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Compiling backtrace-sys v0.1.30 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling miniz-sys v0.1.12 [INFO] [stderr] Checking regex-syntax v0.6.7 [INFO] [stderr] Compiling libz-sys v1.0.25 [INFO] [stderr] Compiling libgit2-sys v0.8.1 [INFO] [stderr] Compiling openssl-sys v0.9.47 [INFO] [stderr] Compiling nom v4.2.3 [INFO] [stderr] Compiling pest v2.1.1 [INFO] [stderr] Checking block-padding v0.1.4 [INFO] [stderr] Checking unreachable v1.0.0 [INFO] [stderr] Checking walkdir v2.2.8 [INFO] [stderr] Compiling semver v0.9.0 [INFO] [stderr] Compiling memchr v2.2.0 [INFO] [stderr] Compiling unicode-normalization v0.1.8 [INFO] [stderr] Checking crossbeam-utils v0.6.5 [INFO] [stderr] Compiling bitflags v1.1.0 [INFO] [stderr] Compiling ryu v1.0.0 [INFO] [stderr] Checking idna v0.1.5 [INFO] [stderr] Compiling num-traits v0.2.6 [INFO] [stderr] Checking aho-corasick v0.7.4 [INFO] [stderr] Checking generic-array v0.12.3 [INFO] [stderr] Compiling rustc_version v0.2.3 [INFO] [stderr] Checking crossbeam-channel v0.3.8 [INFO] [stderr] Checking num-bigint v0.2.2 [INFO] [stderr] Checking url v1.7.2 [INFO] [stderr] Checking digest v0.8.1 [INFO] [stderr] Checking block-buffer v0.7.3 [INFO] [stderr] Compiling pest_meta v2.1.1 [INFO] [stderr] Compiling stackvector v1.0.6 [INFO] [stderr] Compiling lexical-core v0.4.2 [INFO] [stderr] Compiling lexical v2.2.1 [INFO] [stderr] Compiling num-integer v0.1.39 [INFO] [stderr] Compiling native-tls v0.2.3 [INFO] [stderr] Checking iovec v0.1.2 [INFO] [stderr] Checking rand_os v0.1.3 [INFO] [stderr] Checking net2 v0.2.33 [INFO] [stderr] Checking time v0.1.42 [INFO] [stderr] Checking nix v0.13.1 [INFO] [stderr] Checking atty v0.2.13 [INFO] [stderr] Checking sha2 v0.8.0 [INFO] [stderr] Checking bytes v0.4.12 [INFO] [stderr] Checking backtrace v0.3.32 [INFO] [stderr] Checking flate2 v1.0.9 [INFO] [stderr] Checking mio v0.6.19 [INFO] [stderr] Checking chrono v0.4.7 [INFO] [stderr] Checking bigdecimal v0.1.0 [INFO] [stderr] Checking input_buffer v0.2.0 [INFO] [stderr] Checking mio-extras v2.0.5 [INFO] [stderr] Checking twox-hash v1.4.2 [INFO] [stderr] Checking env_logger v0.6.2 [INFO] [stderr] Compiling pest_generator v2.1.0 [INFO] [stderr] Compiling serde_derive v1.0.95 [INFO] [stderr] Compiling snafu-derive v0.4.1 [INFO] [stderr] Compiling pest_derive v2.1.0 [INFO] [stderr] Checking snafu v0.4.1 [INFO] [stderr] Compiling serde v1.0.94 [INFO] [stderr] Checking serde_json v1.0.40 [INFO] [stderr] Compiling git2 v0.9.1 [INFO] [stderr] Compiling toml v0.5.1 [INFO] [stderr] Checking handlebars v1.1.0 [INFO] [stderr] Checking amq-protocol-types v1.2.0 [INFO] [stderr] Checking mysql_common v0.17.1 [INFO] [stderr] Compiling built v0.3.1 [INFO] [stderr] Checking amq-protocol-codegen v1.4.0 [INFO] [stderr] Compiling amiquip v0.3.0 [INFO] [stderr] Compiling amq-protocol v1.4.0 [INFO] [stderr] thread 'rustc' panicked at 'index out of bounds: the len is 0 but the index is 0', src/librustc_mir_build/hair/pattern/_match.rs:1184:21 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f075c039c85 - backtrace::backtrace::libunwind::trace::h678b9599e62f63eb [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7f075c039c85 - backtrace::backtrace::trace_unsynchronized::hb47d77776d18cf5b [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f075c039c85 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f075c039c85 - ::fmt::h0e056b70ceff915d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f075c07721c - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7f075c02bd63 - std::io::Write::write_fmt::h5b95d57b9d83617e [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7f075c03ec90 - std::sys_common::backtrace::_print::hde4f93cf630dd149 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f075c03ec90 - std::sys_common::backtrace::print::hab894e5c65d4445d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f075c03ec90 - std::panicking::default_hook::{{closure}}::h069a26eaaf53ac74 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f075c03e9dc - std::panicking::default_hook::he2b0e031648f6bed [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f075c7583d3 - rustc_driver::report_ice::h76a5283215ef3ce2 [INFO] [stderr] 11: 0x7f074f18b4e6 - as core::ops::function::Fn>::call::h0c105a812f60dbac [INFO] [stderr] at /rustc/7f940ef5d91b53e889f111f27e00849f2f5ae4a2/src/liballoc/boxed.rs:1071 [INFO] [stderr] 12: 0x7f074f19caf5 - proc_macro::bridge::client::::enter::{{closure}}::{{closure}}::hb83d264b4e488c6f [INFO] [stderr] at /rustc/7f940ef5d91b53e889f111f27e00849f2f5ae4a2/src/libproc_macro/bridge/client.rs:318 [INFO] [stderr] 13: 0x7f075c03f33c - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b [INFO] [stderr] at src/libstd/panicking.rs:490 [INFO] [stderr] 14: 0x7f075c03ef1b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:388 [INFO] [stderr] 15: 0x7f075c073dc1 - core::panicking::panic_fmt::hd101a87121fa411f [INFO] [stderr] at src/libcore/panicking.rs:101 [INFO] [stderr] 16: 0x7f075c073d82 - core::panicking::panic_bounds_check::ha0668dcff6357ef4 [INFO] [stderr] at src/libcore/panicking.rs:73 [INFO] [stderr] 17: 0x7f075d7308be - rustc_mir_build::hair::pattern::_match::Fields::replace_with_fieldpats::hcf5ce13ee9d4cfec [INFO] [stderr] 18: 0x7f075d72b3cc - rustc_mir_build::hair::pattern::_match::PatStack::specialize_constructor::h02fca108eeb2545d [INFO] [stderr] 19: 0x7f075d7336d6 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 20: 0x7f075d7e49aa - as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab [INFO] [stderr] 21: 0x7f075d7329ff - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 22: 0x7f075d7337a9 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 23: 0x7f075d7e49aa - as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab [INFO] [stderr] 24: 0x7f075d7329ff - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 25: 0x7f075d7425b6 - rustc_mir_build::hair::pattern::check_match::check_not_useful::h47c9834122f36118 [INFO] [stderr] 26: 0x7f075d740864 - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 27: 0x7f075d74850b - rustc_hir::intravisit::walk_expr::h39af678d8153ba59 [INFO] [stderr] 28: 0x7f075d73fe3c - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 29: 0x7f075d73fe3c - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 30: 0x7f075d73fb2c - rustc_mir_build::hair::pattern::check_match::check_match::h6ed435df85a92553 [INFO] [stderr] 31: 0x7f075c9642b2 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_match>::compute::h7942ff33ebb491ec [INFO] [stderr] 32: 0x7f075c9b3b2d - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h4edadaeda1df0b7d [INFO] [stderr] 33: 0x7f075c9dce83 - rustc_data_structures::stack::ensure_sufficient_stack::hfdfb141ad7352d9d [INFO] [stderr] 34: 0x7f075ca043d0 - rustc_query_system::query::plumbing::get_query_impl::h57cc97c7af6b96a3 [INFO] [stderr] 35: 0x7f075ca11697 - rustc_query_system::query::plumbing::ensure_query_impl::h88f31e7b8f316844 [INFO] [stderr] 36: 0x7f075c967a0b - rustc_session::utils::::time::h3484c4e2989ee128 [INFO] [stderr] 37: 0x7f075c967f77 - rustc_session::utils::::time::h8e58a4e32869f591 [INFO] [stderr] 38: 0x7f075c8fff9a - rustc_interface::passes::analysis::h838ab583621bc53e [INFO] [stderr] 39: 0x7f075c75a3cb - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h145128927f8d44c3 [INFO] [stderr] 40: 0x7f075c7b5547 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h0c280ffe4e600d0e [INFO] [stderr] 41: 0x7f075c7c090d - rustc_query_system::query::plumbing::get_query_impl::h37ddcaa4a0c60b45 [INFO] [stderr] 42: 0x7f075c75a5d7 - rustc_middle::ty::context::tls::enter_global::h43b4d7278205661c [INFO] [stderr] 43: 0x7f075c7268ed - rustc_interface::interface::run_compiler_in_existing_thread_pool::h5d4334487074190f [INFO] [stderr] 44: 0x7f075c7711ed - scoped_tls::ScopedKey::set::h51123c2e8bd39911 [INFO] [stderr] 45: 0x7f075c76d772 - rustc_ast::attr::with_globals::h27faf57f3fd8d421 [INFO] [stderr] 46: 0x7f075c772f9c - std::sys_common::backtrace::__rust_begin_short_backtrace::hac744d22fa8cc61c [INFO] [stderr] 47: 0x7f075c729b1e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h237c6aa9840af126 [INFO] [stderr] 48: 0x7f075c04eb9a - as core::ops::function::FnOnce>::call_once::hb59dd7261bcac217 [INFO] [stderr] at /rustc/7f940ef5d91b53e889f111f27e00849f2f5ae4a2/src/liballoc/boxed.rs:1057 [INFO] [stderr] 49: 0x7f075c04eb9a - as core::ops::function::FnOnce>::call_once::hb7a91030439e6548 [INFO] [stderr] at /rustc/7f940ef5d91b53e889f111f27e00849f2f5ae4a2/src/liballoc/boxed.rs:1057 [INFO] [stderr] 50: 0x7f075c04eb9a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 51: 0x7f075bf90609 - start_thread [INFO] [stderr] 52: 0x7f075bea4103 - __clone [INFO] [stderr] 53: 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 1.45.0-nightly (7f940ef5d 2020-05-23) 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 [check_match] processing `io_loop::content_collector::ContentCollector::collect_header` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `amiquip`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "a112d78dbf3a7315c29ad3df62e238ab75996b39ae3388676e0cde8e125736d4"` [INFO] running `"docker" "rm" "-f" "a112d78dbf3a7315c29ad3df62e238ab75996b39ae3388676e0cde8e125736d4"` [INFO] [stdout] a112d78dbf3a7315c29ad3df62e238ab75996b39ae3388676e0cde8e125736d4