[INFO] cloning repository kdar/rust-ice1 [INFO] running `"git" "clone" "--bare" "git://github.com/kdar/rust-ice1.git" "work/cache/sources/gh/kdar/rust-ice1"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/kdar/rust-ice1'... [INFO] running `"git" "clone" "work/cache/sources/gh/kdar/rust-ice1" "work/ex/beta-1.37-6/sources/1.36.0/gh/kdar/rust-ice1"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kdar/rust-ice1'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/kdar/rust-ice1" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kdar/rust-ice1"` [INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kdar/rust-ice1'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] fa4adc6e2a1baa8884633f60ee8d2dcd5e21aa3d [INFO] sha for GitHub repo kdar/rust-ice1: fa4adc6e2a1baa8884633f60ee8d2dcd5e21aa3d [INFO] validating manifest of kdar/rust-ice1 on toolchain 1.36.0 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of kdar/rust-ice1 on toolchain beta-2019-07-23 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing kdar/rust-ice1 [INFO] finished frobbing kdar/rust-ice1 [INFO] frobbed toml for kdar/rust-ice1 written to work/ex/beta-1.37-6/sources/1.36.0/gh/kdar/rust-ice1/Cargo.toml [INFO] started frobbing kdar/rust-ice1 [INFO] finished frobbing kdar/rust-ice1 [INFO] frobbed toml for kdar/rust-ice1 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kdar/rust-ice1/Cargo.toml [INFO] crate kdar/rust-ice1 already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing kdar/rust-ice1 against beta-2019-07-23 for beta-1.37-6 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kdar/rust-ice1:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"` [INFO] [stdout] 8c7a61ae9de028cb8fd8351e2dbffaeb03c279b7dd3788caa155885f6c6d9fd8 [INFO] running `"docker" "start" "-a" "8c7a61ae9de028cb8fd8351e2dbffaeb03c279b7dd3788caa155885f6c6d9fd8"` [INFO] [stderr] Compiling rust-ice1 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] 0: 0x7f8f75d5539b - backtrace::backtrace::libunwind::trace::h5dfa5d4c5feed6dc [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/libunwind.rs:88 [INFO] [stderr] 1: 0x7f8f75d5539b - backtrace::backtrace::trace_unsynchronized::hb731fe64f3fa469f [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.29/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f8f75d5539b - std::sys_common::backtrace::_print::hf4fd45fe7ae4a250 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:47 [INFO] [stderr] 3: 0x7f8f75d5539b - std::sys_common::backtrace::print::h31646c3786c57441 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:36 [INFO] [stderr] 4: 0x7f8f75d5539b - std::panicking::default_hook::{{closure}}::hda785e768c746ae7 [INFO] [stderr] at src/libstd/panicking.rs:200 [INFO] [stderr] 5: 0x7f8f75d55077 - std::panicking::default_hook::h0c4b76f338614ef1 [INFO] [stderr] at src/libstd/panicking.rs:214 [INFO] [stderr] 6: 0x7f8f733486a1 - rustc::util::common::panic_hook::h9c5a421d28b0108d [INFO] [stderr] 7: 0x7f8f75d55bf9 - std::panicking::rust_panic_with_hook::h096dff2cb12b67ce [INFO] [stderr] at src/libstd/panicking.rs:481 [INFO] [stderr] 8: 0x7f8f74cbbd15 - std::panicking::begin_panic::h1711c69a78f261f6 [INFO] [stderr] 9: 0x7f8f74ccd49d - rustc_borrowck::borrowck::check_loans::CheckLoanCtxt::report_error_if_loans_conflict::h3dd83c08d834932f [INFO] [stderr] 10: 0x7f8f74cb8e1e - rustc_borrowck::dataflow::DataFlowContext::each_bit_on_entry::hfc78e82446e81641 [INFO] [stderr] 11: 0x7f8f74ccc870 - ::borrow::h0a267c49ad48d89c [INFO] [stderr] 12: 0x7f8f733180bd - rustc::middle::expr_use_visitor::ExprUseVisitor::borrow_expr::h49a925e80c9227ec [INFO] [stderr] 13: 0x7f8f73319077 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 14: 0x7f8f73317c2d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h611583cc7e4dcd61 [INFO] [stderr] 15: 0x7f8f7331a07d - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 16: 0x7f8f733180cd - rustc::middle::expr_use_visitor::ExprUseVisitor::borrow_expr::h49a925e80c9227ec [INFO] [stderr] 17: 0x7f8f73319262 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 18: 0x7f8f73317c2d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h611583cc7e4dcd61 [INFO] [stderr] 19: 0x7f8f73318c49 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 20: 0x7f8f73317c2d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h611583cc7e4dcd61 [INFO] [stderr] 21: 0x7f8f73319445 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 22: 0x7f8f73317c2d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h611583cc7e4dcd61 [INFO] [stderr] 23: 0x7f8f733194d6 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 24: 0x7f8f73317c2d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h611583cc7e4dcd61 [INFO] [stderr] 25: 0x7f8f733194d6 - rustc::middle::expr_use_visitor::ExprUseVisitor::walk_expr::h9894236c98b4937a [INFO] [stderr] 26: 0x7f8f73317c2d - rustc::middle::expr_use_visitor::ExprUseVisitor::consume_expr::h611583cc7e4dcd61 [INFO] [stderr] 27: 0x7f8f74ccd182 - rustc_borrowck::borrowck::check_loans::check_loans::h9705dfb0a8ec6ba8 [INFO] [stderr] 28: 0x7f8f74cda002 - rustc_borrowck::borrowck::borrowck::h48618e15a9b4f06b [INFO] [stderr] 29: 0x7f8f746489f0 - rustc::ty::query::__query_compute::borrowck::h0c9612ad47baa230 [INFO] [stderr] 30: 0x7f8f7451ba4d - rustc::ty::query::::compute::hd87876d7b7159110 [INFO] [stderr] 31: 0x7f8f746b052e - rustc::dep_graph::graph::DepGraph::with_task_impl::h6de8c6a83789d8d2 [INFO] [stderr] 32: 0x7f8f74534a8d - rustc::ty::query::plumbing::::get_query::h1cd3ea67e79f23bf [INFO] [stderr] 33: 0x7f8f74702bfa - rustc_mir::borrow_check::do_mir_borrowck::h553c7816c5e4fa47 [INFO] [stderr] 34: 0x7f8f745a3bdd - rustc::ty::context::GlobalCtxt::enter_local::hde385abd410919a9 [INFO] [stderr] 35: 0x7f8f746ffb0a - rustc_mir::borrow_check::mir_borrowck::h74ac767b4a3ce0ae [INFO] [stderr] 36: 0x7f8f7501c4d7 - rustc::ty::query::__query_compute::mir_borrowck::h065891e9593a86d3 [INFO] [stderr] 37: 0x7f8f7502d045 - rustc::ty::query::::compute::hc115d03007748264 [INFO] [stderr] 38: 0x7f8f7505c2a1 - rustc::dep_graph::graph::DepGraph::with_task_impl::h2f15a3909cb7c8df [INFO] [stderr] 39: 0x7f8f7504bf26 - rustc::ty::query::plumbing::::get_query::hfa9661067a08553b [INFO] [stderr] 40: 0x7f8f7502cec3 - rustc::ty::::par_body_owners::hea436481586dbca5 [INFO] [stderr] 41: 0x7f8f74fe9c3e - rustc::util::common::time::hafbe57f3308a895b [INFO] [stderr] 42: 0x7f8f74fa4572 - rustc_interface::passes::analysis::h0b88328f7e1e0dd3 [INFO] [stderr] 43: 0x7f8f760a9c96 - rustc::ty::query::__query_compute::analysis::hf92f61004e3a3214 [INFO] [stderr] 44: 0x7f8f760192b9 - rustc::ty::query::::compute::h9614730a0619a49b [INFO] [stderr] 45: 0x7f8f760ac3b3 - rustc::dep_graph::graph::DepGraph::with_task_impl::h6d66e2c76d180acf [INFO] [stderr] 46: 0x7f8f7601eb22 - rustc::ty::query::plumbing::::get_query::hff5f823c406f8f4a [INFO] [stderr] 47: 0x7f8f7601fdf6 - rustc::ty::context::tls::enter_global::h1702ff4f84b5d407 [INFO] [stderr] 48: 0x7f8f760244a7 - rustc_interface::passes::BoxedGlobalCtxt::access::{{closure}}::hb9523fd8e35e67ad [INFO] [stderr] 49: 0x7f8f74fecd6a - rustc_interface::passes::create_global_ctxt::{{closure}}::hd0a67f5c11680207 [INFO] [stderr] 50: 0x7f8f760256d8 - rustc_interface::interface::run_compiler_in_existing_thread_pool::h2bc09f246bfd173d [INFO] [stderr] 51: 0x7f8f76048022 - std::thread::local::LocalKey::with::hfda3afcdd5a185fa [INFO] [stderr] 52: 0x7f8f7605b861 - scoped_tls::ScopedKey::set::h77e0b01426b8b0ed [INFO] [stderr] 53: 0x7f8f76073884 - syntax::with_globals::h97c3850fd06678ab [INFO] [stderr] 54: 0x7f8f76014bdd - std::sys_common::backtrace::__rust_begin_short_backtrace::h4c55b8b27b493a36 [INFO] [stderr] 55: 0x7f8f75d664ba - __rust_maybe_catch_panic [INFO] [stderr] at src/libpanic_unwind/lib.rs:82 [INFO] [stderr] 56: 0x7f8f76027da9 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h3f9d08d982b4373b [INFO] [stderr] 57: 0x7f8f75d38e3f - as core::ops::function::FnOnce>::call_once::h55ef432b72ff7a0b [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746 [INFO] [stderr] 58: 0x7f8f75d651a0 - as core::ops::function::FnOnce>::call_once::h9294a5138530eae1 [INFO] [stderr] at /rustc/61d1607e0f6a18bb4897d6f9b10abeac9e11eb8e/src/liballoc/boxed.rs:746 [INFO] [stderr] 59: 0x7f8f75d651a0 - std::sys_common::thread::start_thread::h0d2733dd32c3723c [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 60: 0x7f8f75d651a0 - std::sys::unix::thread::Thread::new::thread_start::hf1005dad6ba8f2b1 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:79 [INFO] [stderr] 61: 0x7f8f75ad74a4 - start_thread [INFO] [stderr] 62: 0x7f8f7540dd0f - __clone [INFO] [stderr] 63: 0x0 - [INFO] [stderr] query stack during panic: [INFO] [stderr] #0 [borrowck] processing `main` [INFO] [stderr] #1 [mir_borrowck] processing `main` [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-beta.6 (61d1607e0 2019-07-22) running on x86_64-unknown-linux-gnu [INFO] [stderr] [INFO] [stderr] note: compiler flags: -C debuginfo=2 --crate-type bin [INFO] [stderr] [INFO] [stderr] note: some of the compiler flags provided by cargo are hidden [INFO] [stderr] [INFO] [stderr] error: Could not compile `rust-ice1`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "8c7a61ae9de028cb8fd8351e2dbffaeb03c279b7dd3788caa155885f6c6d9fd8"` [INFO] running `"docker" "rm" "-f" "8c7a61ae9de028cb8fd8351e2dbffaeb03c279b7dd3788caa155885f6c6d9fd8"` [INFO] [stdout] 8c7a61ae9de028cb8fd8351e2dbffaeb03c279b7dd3788caa155885f6c6d9fd8