[INFO] fetching crate syscall-linux-raw 0.0.1... [INFO] checking syscall-linux-raw-0.0.1 against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502 [INFO] extracting crate syscall-linux-raw 0.0.1 into /workspace/builds/worker-6/source [INFO] validating manifest of crates.io crate syscall-linux-raw 0.0.1 on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate syscall-linux-raw 0.0.1 [INFO] finished tweaking crates.io crate syscall-linux-raw 0.0.1 [INFO] tweaked toml for crates.io crate syscall-linux-raw 0.0.1 written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate crates.io crate syscall-linux-raw 0.0.1 already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded direct-asm v0.0.1-alpha [INFO] [stderr] Downloaded dynasm-lib v0.1.0-alpha [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 71e587e18ee743bbdba5605e390bee1db2f12af59093ab78d49aa9fd80fa9feb [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "71e587e18ee743bbdba5605e390bee1db2f12af59093ab78d49aa9fd80fa9feb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "71e587e18ee743bbdba5605e390bee1db2f12af59093ab78d49aa9fd80fa9feb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71e587e18ee743bbdba5605e390bee1db2f12af59093ab78d49aa9fd80fa9feb", kill_on_drop: false }` [INFO] [stdout] 71e587e18ee743bbdba5605e390bee1db2f12af59093ab78d49aa9fd80fa9feb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "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" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:e18d859f9e32a1da89bc7b2d7d51e13b57342044d1295d9fc0dd0068c58eb3d1" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 67f5b2d9c9b0f1984d423ad38117d77c9ae1bc09841c15d3913c77e6943bb8b5 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "67f5b2d9c9b0f1984d423ad38117d77c9ae1bc09841c15d3913c77e6943bb8b5", kill_on_drop: false }` [INFO] [stderr] Compiling libc v0.2.71 [INFO] [stderr] Compiling bitflags v1.2.1 [INFO] [stderr] Compiling unicode-xid v0.2.1 [INFO] [stderr] Compiling syn v1.0.33 [INFO] [stderr] Compiling ppv-lite86 v0.2.8 [INFO] [stderr] Compiling byteorder v1.3.4 [INFO] [stderr] Compiling proc-macro2 v1.0.18 [INFO] [stderr] Compiling dynasm-lib v0.1.0-alpha [INFO] [stderr] Compiling quote v1.0.7 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling rand_chacha v0.2.2 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src/librustc_mir/transform/match_branches.rs:54:81 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7fcf13715200 - std::backtrace_rs::backtrace::libunwind::trace::ha1eabb142084ea37 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96 [INFO] [stderr] 1: 0x7fcf13715200 - std::backtrace_rs::backtrace::trace_unsynchronized::hbb8825661d997281 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/../../backtrace/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7fcf13715200 - std::sys_common::backtrace::_print_fmt::h26d850e2f7183914 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:79 [INFO] [stderr] 3: 0x7fcf13715200 - ::fmt::h3834b06f68a2b012 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:58 [INFO] [stderr] 4: 0x7fcf1378515c - core::fmt::write::h3a043650ba7bf668 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/fmt/mod.rs:1117 [INFO] [stderr] 5: 0x7fcf13707df5 - std::io::Write::write_fmt::h9c0c8944a1898139 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/io/mod.rs:1510 [INFO] [stderr] 6: 0x7fcf13719cb0 - std::sys_common::backtrace::_print::h693c0c2cc41d4d10 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:61 [INFO] [stderr] 7: 0x7fcf13719cb0 - std::sys_common::backtrace::print::h213be73e5670b8ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:48 [INFO] [stderr] 8: 0x7fcf13719cb0 - std::panicking::default_hook::{{closure}}::h2d49a3361cc4e7ea [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:200 [INFO] [stderr] 9: 0x7fcf137199fc - std::panicking::default_hook::hd41fbdeba93207ba [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:219 [INFO] [stderr] 10: 0x7fcf13f552a9 - rustc_driver::report_ice::h1120fbf2656cc9f3 [INFO] [stderr] 11: 0x7fcf1371a448 - std::panicking::rust_panic_with_hook::hcab398664b4bd473 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:573 [INFO] [stderr] 12: 0x7fcf13719ff9 - std::panicking::begin_panic_handler::{{closure}}::h7512c6f2998ba93d [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:476 [INFO] [stderr] 13: 0x7fcf1371566c - std::sys_common::backtrace::__rust_end_short_backtrace::h1a25d7e7e1864d3d [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys_common/backtrace.rs:153 [INFO] [stderr] 14: 0x7fcf13719fb9 - rust_begin_unwind [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/panicking.rs:475 [INFO] [stderr] 15: 0x7fcf13781d01 - core::panicking::panic_fmt::h019ad16a92ccd092 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/panicking.rs:85 [INFO] [stderr] 16: 0x7fcf13781c4d - core::panicking::panic::hf72d67b706869386 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/core/src/panicking.rs:50 [INFO] [stderr] 17: 0x7fcf1539351c - ::run_pass::hcfac8558bd52d9ad [INFO] [stderr] 18: 0x7fcf1578b885 - rustc_mir::transform::run_passes::h5d2d711a3423ab80 [INFO] [stderr] 19: 0x7fcf1578d9dd - rustc_mir::transform::run_optimization_passes::h9c3b574885293427 [INFO] [stderr] 20: 0x7fcf1578ddb0 - rustc_mir::transform::inner_optimized_mir::hfad84173074cc037 [INFO] [stderr] 21: 0x7fcf1578db6d - rustc_mir::transform::optimized_mir::h9e54a66d9e6f2339 [INFO] [stderr] 22: 0x7fcf168b3180 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h6cecaa49ba76c0a3 [INFO] [stderr] 23: 0x7fcf16b118d2 - rustc_data_structures::stack::ensure_sufficient_stack::hfe875ede115d67ca [INFO] [stderr] 24: 0x7fcf1679e1e8 - rustc_query_system::query::plumbing::get_query_impl::he20f0bfe9c12825f [INFO] [stderr] 25: 0x7fcf16b88be1 - rustc_middle::ty::::instance_mir::h346400239c191f09 [INFO] [stderr] 26: 0x7fcf1550db18 - rustc_mir::monomorphize::collector::collect_neighbours::h8ce8c636fe5b1784 [INFO] [stderr] 27: 0x7fcf155091bb - rustc_mir::monomorphize::collector::collect_items_rec::h418d757a46fb996f [INFO] [stderr] 28: 0x7fcf15508a13 - rustc_mir::monomorphize::collector::collect_items_rec::h418d757a46fb996f [INFO] [stderr] 29: 0x7fcf156b8364 - rustc_session::utils::::time::hd6a08884a011ba31 [INFO] [stderr] 30: 0x7fcf15507b91 - rustc_mir::monomorphize::collector::collect_crate_mono_items::h75156df70a58ab8b [INFO] [stderr] 31: 0x7fcf158208a4 - rustc_mir::monomorphize::partitioning::collect_and_partition_mono_items::h4fb78fb6b31230fe [INFO] [stderr] 32: 0x7fcf159b29d2 - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::collect_and_partition_mono_items>::compute::h773f634efe0f6eb1 [INFO] [stderr] 33: 0x7fcf159920f9 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::hac741552b5e4d292 [INFO] [stderr] 34: 0x7fcf159732bc - rustc_data_structures::stack::ensure_sufficient_stack::h53af861baa911c47 [INFO] [stderr] 35: 0x7fcf15933d53 - rustc_query_system::query::plumbing::get_query_impl::hee34ac00a0c81b69 [INFO] [stderr] 36: 0x7fcf159c2c0e - rustc_codegen_ssa::back::symbol_export::exported_symbols_provider_local::hf1fd67741ba49e3d [INFO] [stderr] 37: 0x7fcf15bcbd0e - rustc_middle::ty::query:: for rustc_middle::ty::query::queries::exported_symbols>::compute::hbf59f488f8c06398 [INFO] [stderr] 38: 0x7fcf15d98aa4 - rustc_query_system::dep_graph::graph::DepGraph::with_task_impl::h899e21bc084531c3 [INFO] [stderr] 39: 0x7fcf15ddae8c - rustc_data_structures::stack::ensure_sufficient_stack::hc20f29c28c3a90af [INFO] [stderr] 40: 0x7fcf15d03a00 - rustc_query_system::query::plumbing::get_query_impl::h61167588aad44267 [INFO] [stderr] 41: 0x7fcf15bea74f - rustc_metadata::rmeta::encoder::EncodeContext::encode_crate_root::h11bd4c206fc8de4f [INFO] [stderr] 42: 0x7fcf15bf6536 - rustc_metadata::rmeta::encoder::encode_metadata_impl::hcbe2690471dd3a55 [INFO] [stderr] 43: 0x7fcf15d5121c - rustc_data_structures::sync::join::hef81d886a7ea28e2 [INFO] [stderr] 44: 0x7fcf15e107f0 - rustc_metadata::rmeta::decoder::cstore_impl::::encode_metadata::hc82f7461439ea9b8 [INFO] [stderr] 45: 0x7fcf16b7dce0 - rustc_middle::ty::context::TyCtxt::encode_metadata::h01a497bea052edd4 [INFO] [stderr] 46: 0x7fcf14325b54 - rustc_interface::passes::QueryContext::enter::h28318a481c9f153f [INFO] [stderr] 47: 0x7fcf14353fa3 - rustc_interface::queries::Queries::ongoing_codegen::h04630f86a5de5c66 [INFO] [stderr] 48: 0x7fcf13f98ac2 - rustc_interface::queries::::enter::hdf18b982b0040d8c [INFO] [stderr] 49: 0x7fcf13f5a37d - rustc_span::with_source_map::h4312ff0660509f98 [INFO] [stderr] 50: 0x7fcf13f997f5 - rustc_interface::interface::create_compiler_and_run::hb2f7781764c10c57 [INFO] [stderr] 51: 0x7fcf13f5b4bb - rustc_span::with_session_globals::h6f0396829c123936 [INFO] [stderr] 52: 0x7fcf13f893fd - std::sys_common::backtrace::__rust_begin_short_backtrace::habb527642304c3bb [INFO] [stderr] 53: 0x7fcf13f3f71e - core::ops::function::FnOnce::call_once{{vtable.shim}}::hbe0f8ecc165e4f02 [INFO] [stderr] 54: 0x7fcf1372b27a - as core::ops::function::FnOnce>::call_once::h8a8db08de617a605 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 55: 0x7fcf1372b27a - as core::ops::function::FnOnce>::call_once::hddfcff0ffd25c0c4 [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/alloc/src/boxed.rs:1025 [INFO] [stderr] 56: 0x7fcf1372b27a - std::sys::unix::thread::Thread::new::thread_start::h8e648f9ee2e9cb3a [INFO] [stderr] at /rustc/f6e2f78768c57172b99c3e85892f867894dc7e30/library/std/src/sys/unix/thread.rs:87 [INFO] [stderr] 57: 0x7fcf13648609 - start_thread [INFO] [stderr] 58: 0x7fcf1355c103 - clone [INFO] [stderr] 59: 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/issues/new?labels=C-bug%2C+I-ICE%2C+T-compiler&template=ice.md [INFO] [stderr] [INFO] [stderr] note: rustc 1.47.0-nightly (f6e2f7876 2020-08-13) 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 [optimized_mir] optimizing MIR for `arch::x64::compiler::compile_instruction` [INFO] [stderr] #1 [collect_and_partition_mono_items] collect_and_partition_mono_items [INFO] [stderr] #2 [exported_symbols] exported_symbols [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `dynasm-lib`. [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] error: build failed [INFO] running `Command { std: "docker" "inspect" "67f5b2d9c9b0f1984d423ad38117d77c9ae1bc09841c15d3913c77e6943bb8b5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "67f5b2d9c9b0f1984d423ad38117d77c9ae1bc09841c15d3913c77e6943bb8b5", kill_on_drop: false }` [INFO] [stdout] 67f5b2d9c9b0f1984d423ad38117d77c9ae1bc09841c15d3913c77e6943bb8b5