[INFO] crate algebraics 0.2.0 is already in cache [INFO] checking algebraics-0.2.0 against try#e2aab98dd8975a0990f9fbb79b3ea4b40559a184 for pr-72493 [INFO] extracting crate algebraics 0.2.0 into /workspace/builds/worker-2/source [INFO] validating manifest of crates.io crate algebraics 0.2.0 on toolchain e2aab98dd8975a0990f9fbb79b3ea4b40559a184 [INFO] running `"/workspace/cargo-home/bin/cargo" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate algebraics 0.2.0 [INFO] finished tweaking crates.io crate algebraics 0.2.0 [INFO] tweaked toml for crates.io crate algebraics 0.2.0 written to /workspace/builds/worker-2/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+e2aab98dd8975a0990f9fbb79b3ea4b40559a184" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 7a30250a1842a1c070ff52ecb426db9d99cac8feed9eb7c13fc0dba337a96900 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `"docker" "start" "-a" "7a30250a1842a1c070ff52ecb426db9d99cac8feed9eb7c13fc0dba337a96900"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling autocfg v0.1.7 [INFO] [stderr] Checking rand_core v0.4.2 [INFO] [stderr] Checking lazy_static v1.4.0 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking num-bigint v0.2.6 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking algebraics v0.2.0 (/opt/rustwide/workdir) [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: 0x7f6cdd265c85 - 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: 0x7f6cdd265c85 - 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: 0x7f6cdd265c85 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f6cdd265c85 - ::fmt::h0e056b70ceff915d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f6cdd2a321c - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7f6cdd257d63 - std::io::Write::write_fmt::h5b95d57b9d83617e [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7f6cdd26ac90 - std::sys_common::backtrace::_print::hde4f93cf630dd149 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f6cdd26ac90 - std::sys_common::backtrace::print::hab894e5c65d4445d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f6cdd26ac90 - std::panicking::default_hook::{{closure}}::h069a26eaaf53ac74 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f6cdd26a9dc - std::panicking::default_hook::he2b0e031648f6bed [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f6cdd984b03 - rustc_driver::report_ice::h76a5283215ef3ce2 [INFO] [stderr] 11: 0x7f6cdd26b33c - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b [INFO] [stderr] at src/libstd/panicking.rs:490 [INFO] [stderr] 12: 0x7f6cdd26af1b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:388 [INFO] [stderr] 13: 0x7f6cdd29fdc1 - core::panicking::panic_fmt::hd101a87121fa411f [INFO] [stderr] at src/libcore/panicking.rs:101 [INFO] [stderr] 14: 0x7f6cdd29fd82 - core::panicking::panic_bounds_check::ha0668dcff6357ef4 [INFO] [stderr] at src/libcore/panicking.rs:73 [INFO] [stderr] 15: 0x7f6cde95c63e - rustc_mir_build::hair::pattern::_match::Fields::replace_with_fieldpats::hcf5ce13ee9d4cfec [INFO] [stderr] 16: 0x7f6cde95714c - rustc_mir_build::hair::pattern::_match::PatStack::specialize_constructor::h02fca108eeb2545d [INFO] [stderr] 17: 0x7f6cde95f456 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 18: 0x7f6cdea1072a - as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab [INFO] [stderr] 19: 0x7f6cde95e77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 20: 0x7f6cde95f529 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 21: 0x7f6cdea1072a - as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab [INFO] [stderr] 22: 0x7f6cde95e77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 23: 0x7f6cde96e336 - rustc_mir_build::hair::pattern::check_match::check_not_useful::h47c9834122f36118 [INFO] [stderr] 24: 0x7f6cde96c5e4 - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 25: 0x7f6cde96bbbc - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 26: 0x7f6cde96b8ac - rustc_mir_build::hair::pattern::check_match::check_match::h6ed435df85a92553 [INFO] [stderr] 27: 0x7f6cddb909e2 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_match>::compute::h7942ff33ebb491ec [INFO] [stderr] 28: 0x7f6cddbe025d - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h4edadaeda1df0b7d [INFO] [stderr] 29: 0x7f6cddc095b3 - rustc_data_structures::stack::ensure_sufficient_stack::hfdfb141ad7352d9d [INFO] [stderr] 30: 0x7f6cddc30b00 - rustc_query_system::query::plumbing::get_query_impl::h57cc97c7af6b96a3 [INFO] [stderr] 31: 0x7f6cddc3ddc7 - rustc_query_system::query::plumbing::ensure_query_impl::h88f31e7b8f316844 [INFO] [stderr] 32: 0x7f6cddb9413b - rustc_session::utils::::time::h3484c4e2989ee128 [INFO] [stderr] 33: 0x7f6cddb946a7 - rustc_session::utils::::time::h8e58a4e32869f591 [INFO] [stderr] 34: 0x7f6cddb2c6ca - rustc_interface::passes::analysis::h838ab583621bc53e [INFO] [stderr] 35: 0x7f6cdd986afb - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h145128927f8d44c3 [INFO] [stderr] 36: 0x7f6cdd9e1c77 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h0c280ffe4e600d0e [INFO] [stderr] 37: 0x7f6cdd9ed03d - rustc_query_system::query::plumbing::get_query_impl::h37ddcaa4a0c60b45 [INFO] [stderr] 38: 0x7f6cdd986d07 - rustc_middle::ty::context::tls::enter_global::h43b4d7278205661c [INFO] [stderr] 39: 0x7f6cdd95301d - rustc_interface::interface::run_compiler_in_existing_thread_pool::h5d4334487074190f [INFO] [stderr] 40: 0x7f6cdd99d91d - scoped_tls::ScopedKey::set::h51123c2e8bd39911 [INFO] [stderr] 41: 0x7f6cdd999ea2 - rustc_ast::attr::with_globals::h27faf57f3fd8d421 [INFO] [stderr] 42: 0x7f6cdd99f6cc - std::sys_common::backtrace::__rust_begin_short_backtrace::hac744d22fa8cc61c [INFO] [stderr] 43: 0x7f6cdd95624e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h237c6aa9840af126 [INFO] [stderr] 44: 0x7f6cdd27ab9a - as core::ops::function::FnOnce>::call_once::hb59dd7261bcac217 [INFO] [stderr] at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057 [INFO] [stderr] 45: 0x7f6cdd27ab9a - as core::ops::function::FnOnce>::call_once::hb7a91030439e6548 [INFO] [stderr] at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057 [INFO] [stderr] 46: 0x7f6cdd27ab9a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 47: 0x7f6cdd1bc609 - start_thread [INFO] [stderr] 48: 0x7f6cdd0d0103 - __clone [INFO] [stderr] 49: 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 (e2aab98dd 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 rlib --crate-type cdylib [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 `algebraic_numbers::neg` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `algebraics`. [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] 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: 0x7fe6d9413c85 - 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: 0x7fe6d9413c85 - 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: 0x7fe6d9413c85 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7fe6d9413c85 - ::fmt::h0e056b70ceff915d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7fe6d945121c - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7fe6d9405d63 - std::io::Write::write_fmt::h5b95d57b9d83617e [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7fe6d9418c90 - std::sys_common::backtrace::_print::hde4f93cf630dd149 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7fe6d9418c90 - std::sys_common::backtrace::print::hab894e5c65d4445d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7fe6d9418c90 - std::panicking::default_hook::{{closure}}::h069a26eaaf53ac74 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7fe6d94189dc - std::panicking::default_hook::he2b0e031648f6bed [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7fe6d9b32b03 - rustc_driver::report_ice::h76a5283215ef3ce2 [INFO] [stderr] 11: 0x7fe6d941933c - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b [INFO] [stderr] at src/libstd/panicking.rs:490 [INFO] [stderr] 12: 0x7fe6d9418f1b - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:388 [INFO] [stderr] 13: 0x7fe6d944ddc1 - core::panicking::panic_fmt::hd101a87121fa411f [INFO] [stderr] at src/libcore/panicking.rs:101 [INFO] [stderr] 14: 0x7fe6d944dd82 - core::panicking::panic_bounds_check::ha0668dcff6357ef4 [INFO] [stderr] at src/libcore/panicking.rs:73 [INFO] [stderr] 15: 0x7fe6dab0a63e - rustc_mir_build::hair::pattern::_match::Fields::replace_with_fieldpats::hcf5ce13ee9d4cfec [INFO] [stderr] 16: 0x7fe6dab0514c - rustc_mir_build::hair::pattern::_match::PatStack::specialize_constructor::h02fca108eeb2545d [INFO] [stderr] 17: 0x7fe6dab0d456 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 18: 0x7fe6dabbe72a - as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab [INFO] [stderr] 19: 0x7fe6dab0c77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 20: 0x7fe6dab0d529 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 21: 0x7fe6dabbe72a - as core::iter::traits::iterator::Iterator>::try_fold::h9da4325d653fa4ab [INFO] [stderr] 22: 0x7fe6dab0c77f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 23: 0x7fe6dab1c336 - rustc_mir_build::hair::pattern::check_match::check_not_useful::h47c9834122f36118 [INFO] [stderr] 24: 0x7fe6dab1a5e4 - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 25: 0x7fe6dab19bbc - ::visit_expr::h6d4d33aab4ad24b6 [INFO] [stderr] 26: 0x7fe6dab198ac - rustc_mir_build::hair::pattern::check_match::check_match::h6ed435df85a92553 [INFO] [stderr] 27: 0x7fe6d9d3e9e2 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_match>::compute::h7942ff33ebb491ec [INFO] [stderr] 28: 0x7fe6d9d8e25d - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h4edadaeda1df0b7d [INFO] [stderr] 29: 0x7fe6d9db75b3 - rustc_data_structures::stack::ensure_sufficient_stack::hfdfb141ad7352d9d [INFO] [stderr] 30: 0x7fe6d9ddeb00 - rustc_query_system::query::plumbing::get_query_impl::h57cc97c7af6b96a3 [INFO] [stderr] 31: 0x7fe6d9debdc7 - rustc_query_system::query::plumbing::ensure_query_impl::h88f31e7b8f316844 [INFO] [stderr] 32: 0x7fe6d9d4213b - rustc_session::utils::::time::h3484c4e2989ee128 [INFO] [stderr] 33: 0x7fe6d9d426a7 - rustc_session::utils::::time::h8e58a4e32869f591 [INFO] [stderr] 34: 0x7fe6d9cda6ca - rustc_interface::passes::analysis::h838ab583621bc53e [INFO] [stderr] 35: 0x7fe6d9b34afb - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h145128927f8d44c3 [INFO] [stderr] 36: 0x7fe6d9b8fc77 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h0c280ffe4e600d0e [INFO] [stderr] 37: 0x7fe6d9b9b03d - rustc_query_system::query::plumbing::get_query_impl::h37ddcaa4a0c60b45 [INFO] [stderr] 38: 0x7fe6d9b34d07 - rustc_middle::ty::context::tls::enter_global::h43b4d7278205661c [INFO] [stderr] 39: 0x7fe6d9b0101d - rustc_interface::interface::run_compiler_in_existing_thread_pool::h5d4334487074190f [INFO] [stderr] 40: 0x7fe6d9b4b91d - scoped_tls::ScopedKey::set::h51123c2e8bd39911 [INFO] [stderr] 41: 0x7fe6d9b47ea2 - rustc_ast::attr::with_globals::h27faf57f3fd8d421 [INFO] [stderr] 42: 0x7fe6d9b4d6cc - std::sys_common::backtrace::__rust_begin_short_backtrace::hac744d22fa8cc61c [INFO] [stderr] 43: 0x7fe6d9b0424e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h237c6aa9840af126 [INFO] [stderr] 44: 0x7fe6d9428b9a - as core::ops::function::FnOnce>::call_once::hb59dd7261bcac217 [INFO] [stderr] at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057 [INFO] [stderr] 45: 0x7fe6d9428b9a - as core::ops::function::FnOnce>::call_once::hb7a91030439e6548 [INFO] [stderr] at /rustc/e2aab98dd8975a0990f9fbb79b3ea4b40559a184/src/liballoc/boxed.rs:1057 [INFO] [stderr] 46: 0x7fe6d9428b9a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 47: 0x7fe6d936a609 - start_thread [INFO] [stderr] 48: 0x7fe6d927e103 - __clone [INFO] [stderr] 49: 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 (e2aab98dd 2020-05-23) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C embed-bitcode=no -C debuginfo=2 [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 `algebraic_numbers::neg` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: build failed [INFO] running `"docker" "inspect" "7a30250a1842a1c070ff52ecb426db9d99cac8feed9eb7c13fc0dba337a96900"` [INFO] running `"docker" "rm" "-f" "7a30250a1842a1c070ff52ecb426db9d99cac8feed9eb7c13fc0dba337a96900"` [INFO] [stdout] 7a30250a1842a1c070ff52ecb426db9d99cac8feed9eb7c13fc0dba337a96900