[INFO] updating cached repository ruggeri/rust_learning [INFO] running `"git" "fetch" "--all"` [INFO] [stdout] Fetching origin [INFO] [stderr] From git://github.com/ruggeri/rust_learning [INFO] [stderr] * branch HEAD -> FETCH_HEAD [INFO] running `"git" "clone" "work/cache/sources/gh/ruggeri/rust_learning" "work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ruggeri/rust_learning"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ruggeri/rust_learning'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/ruggeri/rust_learning" "work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ruggeri/rust_learning"` [INFO] [stderr] Cloning into 'work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ruggeri/rust_learning'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 6564c9e695a39cf690d74e0eb370d542f146007c [INFO] sha for GitHub repo ruggeri/rust_learning: 6564c9e695a39cf690d74e0eb370d542f146007c [INFO] validating manifest of ruggeri/rust_learning on toolchain master#6ea4036cd20a4b1ab1d56e555108c21735ff6946 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of ruggeri/rust_learning on toolchain try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing ruggeri/rust_learning [INFO] finished frobbing ruggeri/rust_learning [INFO] frobbed toml for ruggeri/rust_learning written to work/ex/pr-62181/sources/master#6ea4036cd20a4b1ab1d56e555108c21735ff6946/gh/ruggeri/rust_learning/Cargo.toml [INFO] started frobbing ruggeri/rust_learning [INFO] finished frobbing ruggeri/rust_learning [INFO] frobbed toml for ruggeri/rust_learning written to work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ruggeri/rust_learning/Cargo.toml [INFO] crate ruggeri/rust_learning already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+6ea4036cd20a4b1ab1d56e555108c21735ff6946-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] checking ruggeri/rust_learning against try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc for pr-62181 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62181/worker-4/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62181/sources/try#003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/gh/ruggeri/rust_learning:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+003a7b6b5753e8509fdfe7949d4f0873ba71e4fc-alt" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] c9cdadef5f8b4450c3760949ed3ab82954dc5b69ac46be9f80bb8cdf2af478ac [INFO] running `"docker" "start" "-a" "c9cdadef5f8b4450c3760949ed3ab82954dc5b69ac46be9f80bb8cdf2af478ac"` [INFO] [stderr] Checking rust_learning v0.1.0 (/opt/crater/workdir) [INFO] [stderr] thread 'rustc' panicked at 'assertion failed: self.bccx.region_scope_tree.scopes_intersect(old_loan.kill_scope, [INFO] [stderr] new_loan.kill_scope)', src/librustc_borrowck/borrowck/check_loans.rs:493:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] thread 'rustc' panicked at 'assertion failed: self.bccx.region_scope_tree.scopes_intersect(old_loan.kill_scope, [INFO] [stderr] new_loan.kill_scope)', src/librustc_borrowck/borrowck/check_loans.rs:493:9 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f899b6be1bb - backtrace::backtrace::libunwind::trace::hc5a758871b6ebf05 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x7f899b6be1bb - backtrace::backtrace::trace_unsynchronized::hdad9729cc53c45f3 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f899b6be1bb - std::sys_common::backtrace::_print::hccf66646430a9cbc [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x7f899b6be1bb - std::sys_common::backtrace::print::h6c902507aa1c61bf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x7f899b6be1bb - std::panicking::default_hook::{{closure}}::hc0c79151a0a4b58f [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x7f899b6bde97 - std::panicking::default_hook::hfd408bb664bf319a [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x7f8998cd1521 - rustc::util::common::panic_hook::h370b9de1542adf7b [INFO] [stderr] 7: 0x7f899b6bea19 - std::panicking::rust_panic_with_hook::hb2d4371b6afbe17a [INFO] [stderr] at src/libstd/panicking.rs:481 [INFO] [stderr] 8: 0x7f899a625d05 - std::panicking::begin_panic::hc80fa2861dfa0c3e [INFO] [stderr] 9: 0x7f899a63732d - rustc_borrowck::borrowck::check_loans::CheckLoanCtxt::report_error_if_loans_conflict::hdfbab5586e795c1b [INFO] [stderr] 10: 0x7f899a6212fe - rustc_borrowck::dataflow::DataFlowContext::each_bit_on_entry::h55c8f4fafd668ce9 [INFO] [stderr] 11: 0x7f899a636700 - ::borrow::h256ad68bddb7d02b [INFO] [stderr] 12: 0x7f8998ca171b - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 13: 0x7f8998ca0e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 14: 0x7f8998ca1ee3 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 15: 0x7f8998ca0e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 16: 0x7f8998ca2646 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 17: 0x7f8998ca0e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 18: 0x7f8998ca26e6 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 19: 0x7f8998ca0e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 20: 0x7f899a637012 - rustc_borrowck::borrowck::check_loans::check_loans::h2971cf7c4a25839a [INFO] [stderr] 21: 0x7f899a643e92 - rustc_borrowck::borrowck::borrowck::hcdb99472029f2384 [INFO] [stderr] 0: 0x7f764c9201bb - backtrace::backtrace::libunwind::trace::hc5a758871b6ebf05 [INFO] [stderr] 22: 0x7f8999f2e530 - rustc::ty::query::__query_compute::borrowck::ha25be5ec3587a2d9 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x7f764c9201bb - backtrace::backtrace::trace_unsynchronized::hdad9729cc53c45f3 [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f764c9201bb - std::sys_common::backtrace::_print::hccf66646430a9cbc [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x7f764c9201bb - std::sys_common::backtrace::print::h6c902507aa1c61bf [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x7f764c9201bb - std::panicking::default_hook::{{closure}}::hc0c79151a0a4b58f [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x7f764c91fe97 - std::panicking::default_hook::hfd408bb664bf319a [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x7f7649f33521 - rustc::util::common::panic_hook::h370b9de1542adf7b [INFO] [stderr] 7: 0x7f764c920a19 - std::panicking::rust_panic_with_hook::hb2d4371b6afbe17a [INFO] [stderr] at src/libstd/panicking.rs:481 [INFO] [stderr] 8: 0x7f764b887d05 - std::panicking::begin_panic::hc80fa2861dfa0c3e [INFO] [stderr] 9: 0x7f764b89932d - rustc_borrowck::borrowck::check_loans::CheckLoanCtxt::report_error_if_loans_conflict::hdfbab5586e795c1b [INFO] [stderr] 10: 0x7f764b8832fe - rustc_borrowck::dataflow::DataFlowContext::each_bit_on_entry::h55c8f4fafd668ce9 [INFO] [stderr] 11: 0x7f764b898700 - ::borrow::h256ad68bddb7d02b [INFO] [stderr] 12: 0x7f7649f0371b - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 13: 0x7f7649f02e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 14: 0x7f7649f03ee3 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 15: 0x7f7649f02e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 16: 0x7f7649f04646 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 17: 0x7f7649f02e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 18: 0x7f7649f046e6 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::he37f4482596d0d3e [INFO] [stderr] 19: 0x7f7649f02e3d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h5c952c3c50d62d6f [INFO] [stderr] 20: 0x7f764b899012 - rustc_borrowck::borrowck::check_loans::check_loans::h2971cf7c4a25839a [INFO] [stderr] 21: 0x7f764b8a5e92 - rustc_borrowck::borrowck::borrowck::hcdb99472029f2384 [INFO] [stderr] 22: 0x7f764b190530 - rustc::ty::query::__query_compute::borrowck::ha25be5ec3587a2d9 [INFO] [stderr] 23: 0x7f764b4bda9d - rustc::ty::query::::compute::h3ea51f80c228ab54 [INFO] [stderr] 24: 0x7f764b1f1a1e - rustc::dep_graph::graph::DepGraph::with_task_impl::hd5f7e2e2bcabc15a [INFO] [stderr] 23: 0x7f899a25ba9d - rustc::ty::query::::compute::h3ea51f80c228ab54 [INFO] [stderr] 25: 0x7f764b4d87cd - rustc::ty::query::plumbing::::get_query::h11feedb21a730b7b [INFO] [stderr] 26: 0x7f764b20ea5a - rustc_mir::borrow_check::do_mir_borrowck::h5dc647cb2bbbba97 [INFO] [stderr] 24: 0x7f8999f8fa1e - rustc::dep_graph::graph::DepGraph::with_task_impl::hd5f7e2e2bcabc15a [INFO] [stderr] 27: 0x7f764b546fcd - rustc::ty::context::GlobalCtxt::enter_local::hb399aed7156c0f94 [INFO] [stderr] 25: 0x7f899a2767cd - rustc::ty::query::plumbing::::get_query::h11feedb21a730b7b [INFO] [stderr] 28: 0x7f764b20b92a - rustc_mir::borrow_check::mir_borrowck::hf36aeb51a629ec16 [INFO] [stderr] 26: 0x7f8999faca5a - rustc_mir::borrow_check::do_mir_borrowck::h5dc647cb2bbbba97 [INFO] [stderr] 29: 0x7f764bbe7b17 - rustc::ty::query::__query_compute::mir_borrowck::h45b4b41b713de728 [INFO] [stderr] 27: 0x7f899a2e4fcd - rustc::ty::context::GlobalCtxt::enter_local::hb399aed7156c0f94 [INFO] [stderr] 28: 0x7f8999fa992a - rustc_mir::borrow_check::mir_borrowck::hf36aeb51a629ec16 [INFO] [stderr] 30: 0x7f764bbf8595 - rustc::ty::query::::compute::h2cebff063d2c8692 [INFO] [stderr] 29: 0x7f899a985b17 - rustc::ty::query::__query_compute::mir_borrowck::h45b4b41b713de728 [INFO] [stderr] 31: 0x7f764bc277f1 - rustc::dep_graph::graph::DepGraph::with_task_impl::h12e4ff144c607e2a [INFO] [stderr] 32: 0x7f764bbfe5e6 - rustc::ty::query::plumbing::::get_query::h377d551d0e8216ca [INFO] [stderr] 30: 0x7f899a996595 - rustc::ty::query::::compute::h2cebff063d2c8692 [INFO] [stderr] 31: 0x7f899a9c57f1 - rustc::dep_graph::graph::DepGraph::with_task_impl::h12e4ff144c607e2a [INFO] [stderr] 33: 0x7f764bbf8283 - rustc::ty::::par_body_owners::h1b2b4d09d14a22ad [INFO] [stderr] 34: 0x7f764bbb540e - rustc::util::common::time::h753c8cd888af830f [INFO] [stderr] 32: 0x7f899a99c5e6 - rustc::ty::query::plumbing::::get_query::h377d551d0e8216ca [INFO] [stderr] 35: 0x7f764bb70392 - rustc_interface::passes::analysis::h92bd3a91abe8f77c [INFO] [stderr] 36: 0x7f764cc76686 - rustc::ty::query::__query_compute::analysis::hdadb24caeacada7d [INFO] [stderr] 33: 0x7f899a996283 - rustc::ty::::par_body_owners::h1b2b4d09d14a22ad [INFO] [stderr] 34: 0x7f899a95340e - rustc::util::common::time::h753c8cd888af830f [INFO] [stderr] 35: 0x7f899a90e392 - rustc_interface::passes::analysis::h92bd3a91abe8f77c [INFO] [stderr] 37: 0x7f764cbe3dc9 - rustc::ty::query::::compute::ha3d96a0a4ca6fe97 [INFO] [stderr] 36: 0x7f899ba14686 - rustc::ty::query::__query_compute::analysis::hdadb24caeacada7d [INFO] [stderr] 38: 0x7f764cc78d83 - rustc::dep_graph::graph::DepGraph::with_task_impl::h9f477e8873497de5 [INFO] [stderr] 39: 0x7f764cbe7962 - rustc::ty::query::plumbing::::get_query::h68769ba19662b758 [INFO] [stderr] 37: 0x7f899b981dc9 - rustc::ty::query::::compute::ha3d96a0a4ca6fe97 [INFO] [stderr] 40: 0x7f764cbeab86 - rustc::ty::context::tls::enter_global::hc0e4398947761e8c [INFO] [stderr] 38: 0x7f899ba16d83 - rustc::dep_graph::graph::DepGraph::with_task_impl::h9f477e8873497de5 [INFO] [stderr] 41: 0x7f764cbeeec7 - rustc_interface::passes::BoxedGlobalCtxt::access::{{closure}}::ha9bc0a5ff4ffed26 [INFO] [stderr] 39: 0x7f899b985962 - rustc::ty::query::plumbing::::get_query::h68769ba19662b758 [INFO] [stderr] 42: 0x7f764bbb8bda - rustc_interface::passes::create_global_ctxt::{{closure}}::h1cbff6f7a4289f9b [INFO] [stderr] 43: 0x7f764cbf0168 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h89dabdbd04447820 [INFO] [stderr] 40: 0x7f899b988b86 - rustc::ty::context::tls::enter_global::hc0e4398947761e8c [INFO] [stderr] 44: 0x7f764cc12902 - std::thread::local::LocalKey::with::h9116eaccb3fe1b71 [INFO] [stderr] 41: 0x7f899b98cec7 - rustc_interface::passes::BoxedGlobalCtxt::access::{{closure}}::ha9bc0a5ff4ffed26 [INFO] [stderr] 45: 0x7f764cc269a1 - scoped_tls::ScopedKey::set::hb1ab8d418cd4b126 [INFO] [stderr] 42: 0x7f899a956bda - rustc_interface::passes::create_global_ctxt::{{closure}}::h1cbff6f7a4289f9b [INFO] [stderr] 46: 0x7f764cc3e604 - syntax::with_globals::hc6668e11d859646c [INFO] [stderr] 43: 0x7f899b98e168 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h89dabdbd04447820 [INFO] [stderr] 47: 0x7f764cc698bd - std::sys_common::backtrace::__rust_begin_short_backtrace::hbd2885224976c56b [INFO] [stderr] 44: 0x7f899b9b0902 - std::thread::local::LocalKey::with::h9116eaccb3fe1b71 [INFO] [stderr] 48: 0x7f764c93147a - __rust_maybe_catch_panic [INFO] [stderr] 45: 0x7f899b9c49a1 - scoped_tls::ScopedKey::set::hb1ab8d418cd4b126 [INFO] [stderr] 46: 0x7f899b9dc604 - syntax::with_globals::hc6668e11d859646c [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 47: 0x7f899ba078bd - std::sys_common::backtrace::__rust_begin_short_backtrace::hbd2885224976c56b [INFO] [stderr] 49: 0x7f764cbf2a29 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5a3cf4ebe75c40dd [INFO] [stderr] 48: 0x7f899b6cf47a - __rust_maybe_catch_panic [INFO] [stderr] 50: 0x7f764c903e3f - as core::ops::function::FnOnce>::call_once::ha7aa416e456f5503 [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/liballoc/boxed.rs:746 [INFO] [stderr] 49: 0x7f899b990a29 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5a3cf4ebe75c40dd [INFO] [stderr] 51: 0x7f764c930160 - as core::ops::function::FnOnce>::call_once::h92f8f287939eb758 [INFO] [stderr] 50: 0x7f899b6a1e3f - as core::ops::function::FnOnce>::call_once::ha7aa416e456f5503 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/liballoc/boxed.rs:746 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/liballoc/boxed.rs:746 [INFO] [stderr] 52: 0x7f764c930160 - std::sys_common::thread::start_thread::h49ef1684887c0e0d [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 51: 0x7f899b6ce160 - as core::ops::function::FnOnce>::call_once::h92f8f287939eb758 [INFO] [stderr] 53: 0x7f764c930160 - std::sys::unix::thread::Thread::new::thread_start::h939d6ed22d8b3dd8 [INFO] [stderr] at /rustc/003a7b6b5753e8509fdfe7949d4f0873ba71e4fc/src/liballoc/boxed.rs:746 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 52: 0x7f899b6ce160 - std::sys_common::thread::start_thread::h49ef1684887c0e0d [INFO] [stderr] 54: 0x7f764c6a24a4 - start_thread [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 55: 0x7f764bfd8d0f - __clone [INFO] [stderr] 53: 0x7f899b6ce160 - std::sys::unix::thread::Thread::new::thread_start::h939d6ed22d8b3dd8 [INFO] [stderr] 56: 0x0 - [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [borrowck] processing `bst::bst::BST::::find_mut` [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 54: 0x7f899b4404a4 - start_thread [INFO] [stderr] 55: 0x7f899ad76d0f - __clone [INFO] [stderr] 56: 0x0 - [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [borrowck] processing `bst::bst::BST::::find_mut` [INFO] [stderr] #1 [mir_borrowck] processing `bst::bst::BST::::find_mut` [INFO] [stderr] #2 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] #1 [mir_borrowck] processing `bst::bst::BST::::find_mut` [INFO] [stderr] #2 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [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 1.37.0-nightly (003a7b6b5 2019-07-01) 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] [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 1.37.0-nightly (003a7b6b5 2019-07-01) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C debuginfo=2 [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] error: Could not compile `rust_learning`. [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: Could not compile `rust_learning`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "c9cdadef5f8b4450c3760949ed3ab82954dc5b69ac46be9f80bb8cdf2af478ac"` [INFO] running `"docker" "rm" "-f" "c9cdadef5f8b4450c3760949ed3ab82954dc5b69ac46be9f80bb8cdf2af478ac"` [INFO] [stdout] c9cdadef5f8b4450c3760949ed3ab82954dc5b69ac46be9f80bb8cdf2af478ac