[INFO] crate simple-soft-float 0.1.0 is already in cache [INFO] checking simple-soft-float-0.1.0 against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644 [INFO] extracting crate simple-soft-float 0.1.0 into /workspace/builds/worker-13/source [INFO] validating manifest of crates.io crate simple-soft-float 0.1.0 on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6 [INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking crates.io crate simple-soft-float 0.1.0 [INFO] finished tweaking crates.io crate simple-soft-float 0.1.0 [INFO] tweaked toml for crates.io crate simple-soft-float 0.1.0 written to /workspace/builds/worker-13/source/Cargo.toml [INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"` [INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "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] 7668fccfe21288bb3229d3fa11f68dcd8eb9fb88f256486c3f8615664d2ad21c [INFO] running `"docker" "start" "-a" "7668fccfe21288bb3229d3fa11f68dcd8eb9fb88f256486c3f8615664d2ad21c"` [INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted [INFO] [stderr] Compiling autocfg v1.0.0 [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] Checking bitflags v1.2.1 [INFO] [stderr] Checking rand_core v0.3.1 [INFO] [stderr] Compiling num-traits v0.2.11 [INFO] [stderr] Compiling num-integer v0.1.42 [INFO] [stderr] Compiling num-bigint v0.2.6 [INFO] [stderr] Compiling num-rational v0.2.4 [INFO] [stderr] Compiling rand_pcg v0.1.2 [INFO] [stderr] Checking rand v0.5.6 [INFO] [stderr] Checking algebraics v0.1.2 [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: 0x7f93dcfc2c25 - 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: 0x7f93dcfc2c25 - backtrace::backtrace::trace_unsynchronized::hc151481f0e2d39cd [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f93dcfc2c25 - std::sys_common::backtrace::_print_fmt::he1b14c2dc4d370e2 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f93dcfc2c25 - ::fmt::h0e056b70ceff915d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f93dd0001bc - core::fmt::write::hdf236390fbd68d3d [INFO] [stderr] at src/libcore/fmt/mod.rs:1076 [INFO] [stderr] 5: 0x7f93dcfb4d03 - std::io::Write::write_fmt::h5b95d57b9d83617e [INFO] [stderr] at src/libstd/io/mod.rs:1537 [INFO] [stderr] 6: 0x7f93dcfc7c30 - std::sys_common::backtrace::_print::hde4f93cf630dd149 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f93dcfc7c30 - std::sys_common::backtrace::print::hab894e5c65d4445d [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f93dcfc7c30 - std::panicking::default_hook::{{closure}}::h190ee58e2eec052f [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f93dcfc797c - std::panicking::default_hook::he2b0e031648f6bed [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f93dd6c86b3 - rustc_driver::report_ice::haa8e845cd8e3086f [INFO] [stderr] 11: 0x7f93dcfc82dc - std::panicking::rust_panic_with_hook::hd8d0481ab65c637b [INFO] [stderr] at src/libstd/panicking.rs:490 [INFO] [stderr] 12: 0x7f93dcfc7ebb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:388 [INFO] [stderr] 13: 0x7f93dcffcd61 - core::panicking::panic_fmt::hd101a87121fa411f [INFO] [stderr] at src/libcore/panicking.rs:101 [INFO] [stderr] 14: 0x7f93dcffcd22 - core::panicking::panic_bounds_check::ha0668dcff6357ef4 [INFO] [stderr] at src/libcore/panicking.rs:73 [INFO] [stderr] 15: 0x7f93de6cedee - rustc_mir_build::hair::pattern::_match::Fields::replace_with_fieldpats::hcfe482a54983bc7f [INFO] [stderr] 16: 0x7f93de6c98fc - rustc_mir_build::hair::pattern::_match::PatStack::specialize_constructor::h52a73ac668cfb4ac [INFO] [stderr] 17: 0x7f93de6d1c06 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 18: 0x7f93de7831aa - as core::iter::traits::iterator::Iterator>::try_fold::h9fd439ad30b9ddfc [INFO] [stderr] 19: 0x7f93de6d0f2f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 20: 0x7f93de6d1cd9 - rustc_mir_build::hair::pattern::_match::is_useful_specialized::hfa02ca6ac723fd79 [INFO] [stderr] 21: 0x7f93de7831aa - as core::iter::traits::iterator::Iterator>::try_fold::h9fd439ad30b9ddfc [INFO] [stderr] 22: 0x7f93de6d0f2f - rustc_mir_build::hair::pattern::_match::is_useful::h0664c5a91670449c [INFO] [stderr] 23: 0x7f93de6e0ae6 - rustc_mir_build::hair::pattern::check_match::check_not_useful::h47c9834122f36118 [INFO] [stderr] 24: 0x7f93de6ded94 - ::visit_expr::hed30ebf5e8391396 [INFO] [stderr] 25: 0x7f93de6de36c - ::visit_expr::hed30ebf5e8391396 [INFO] [stderr] 26: 0x7f93de6de05c - rustc_mir_build::hair::pattern::check_match::check_match::h6ed435df85a92553 [INFO] [stderr] 27: 0x7f93dd8f0c72 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::check_match>::compute::hf50f2482f9053601 [INFO] [stderr] 28: 0x7f93dd941a0d - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h7c46c3cd538efe3f [INFO] [stderr] 29: 0x7f93dd9691e3 - rustc_data_structures::stack::ensure_sufficient_stack::hbfe55f93d2019a1c [INFO] [stderr] 30: 0x7f93dd989c70 - rustc_query_system::query::plumbing::get_query_impl::h0291b6f8dd5ca569 [INFO] [stderr] 31: 0x7f93dd99e337 - rustc_query_system::query::plumbing::ensure_query_impl::hc910b2aba4609df7 [INFO] [stderr] 32: 0x7f93dd8f700b - rustc_session::utils::::time::hf6ff23ff0242237a [INFO] [stderr] 33: 0x7f93dd8f6827 - rustc_session::utils::::time::haedaf7d2e0b5416f [INFO] [stderr] 34: 0x7f93dd88c2ea - rustc_interface::passes::analysis::h80f7d3ceddda0be6 [INFO] [stderr] 35: 0x7f93dd6ca58b - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::analysis>::compute::h9cac2558702160d2 [INFO] [stderr] 36: 0x7f93dd740eb7 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h2896d13078caf413 [INFO] [stderr] 37: 0x7f93dd74ddba - rustc_query_system::query::plumbing::get_query_impl::he3aa138a27a7394d [INFO] [stderr] 38: 0x7f93dd6cad97 - rustc_middle::ty::context::tls::enter_global::hba217b705b6158bb [INFO] [stderr] 39: 0x7f93dd6cd35e - rustc_interface::interface::run_compiler_in_existing_thread_pool::he213e50db98d4e02 [INFO] [stderr] 40: 0x7f93dd6faadf - rustc_ast::attr::with_globals::he0d0fd6a7c53fc42 [INFO] [stderr] 41: 0x7f93dd6fc52c - std::sys_common::backtrace::__rust_begin_short_backtrace::hb1810d63aba8cf93 [INFO] [stderr] 42: 0x7f93dd6b09ee - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf0f93ed149534c4b [INFO] [stderr] 43: 0x7f93dcfd7b3a - as core::ops::function::FnOnce>::call_once::hafe1a9c0c0bd5072 [INFO] [stderr] at /rustc/783139bd8fc3b94fac9a1bf81bba2c506e8221b6/src/liballoc/boxed.rs:1057 [INFO] [stderr] 44: 0x7f93dcfd7b3a - as core::ops::function::FnOnce>::call_once::he2190e4ae57d71d9 [INFO] [stderr] at /rustc/783139bd8fc3b94fac9a1bf81bba2c506e8221b6/src/liballoc/boxed.rs:1057 [INFO] [stderr] 45: 0x7f93dcfd7b3a - std::sys::unix::thread::Thread::new::thread_start::h1e42ba00cae086d8 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:87 [INFO] [stderr] 46: 0x7f93dcf19609 - start_thread [INFO] [stderr] 47: 0x7f93dce2d103 - __clone [INFO] [stderr] 48: 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 (783139bd8 2020-05-27) 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] running `"docker" "inspect" "7668fccfe21288bb3229d3fa11f68dcd8eb9fb88f256486c3f8615664d2ad21c"` [INFO] running `"docker" "rm" "-f" "7668fccfe21288bb3229d3fa11f68dcd8eb9fb88f256486c3f8615664d2ad21c"` [INFO] [stdout] 7668fccfe21288bb3229d3fa11f68dcd8eb9fb88f256486c3f8615664d2ad21c