[INFO] updating cached repository https://github.com/andreymgn/pascal-compiler [INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"` [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 7081fd980c3fd35581a64892fd99d420b7c28f03 [INFO] checking andreymgn/pascal-compiler against master#d939f708d960161d23b964309ba68ff207fc0ead for pr-70087 [INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fandreymgn%2Fpascal-compiler" "/workspace/builds/worker-6/source"` [INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/andreymgn/pascal-compiler on toolchain d939f708d960161d23b964309ba68ff207fc0ead [INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started tweaking git repo https://github.com/andreymgn/pascal-compiler [INFO] finished tweaking git repo https://github.com/andreymgn/pascal-compiler [INFO] tweaked toml for git repo https://github.com/andreymgn/pascal-compiler written to /workspace/builds/worker-6/source/Cargo.toml [INFO] crate git repo https://github.com/andreymgn/pascal-compiler already has a lockfile, it will not be regenerated [INFO] running `"/workspace/cargo-home/bin/cargo" "+d939f708d960161d23b964309ba68ff207fc0ead" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `"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" "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" "+d939f708d960161d23b964309ba68ff207fc0ead" "check" "--frozen" "--all" "--all-targets"` [INFO] [stdout] 1dea87044538ae5dd618a04a3912065b61620e7138ade02aa9b2a9a15e20470b [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" "1dea87044538ae5dd618a04a3912065b61620e7138ade02aa9b2a9a15e20470b"` [INFO] [stderr] Compiling either v1.5.2 [INFO] [stderr] Compiling rawpointer v0.1.0 [INFO] [stderr] Compiling byte-tools v0.3.1 [INFO] [stderr] Compiling opaque-debug v0.2.2 [INFO] [stderr] Compiling precomputed-hash v0.1.1 [INFO] [stderr] Compiling new_debug_unreachable v1.0.3 [INFO] [stderr] Compiling ordermap v0.3.5 [INFO] [stderr] Compiling bit-vec v0.5.1 [INFO] [stderr] Compiling lalrpop-util v0.16.3 [INFO] [stderr] Compiling bitflags v1.0.5 [INFO] [stderr] Compiling diff v0.1.11 [INFO] [stderr] Checking lalrpop-util v0.17.0 [INFO] [stderr] Compiling regex-syntax v0.6.6 [INFO] [stderr] Compiling regex-syntax v0.5.6 [INFO] [stderr] Compiling ascii-canvas v1.0.0 [INFO] [stderr] Compiling byteorder v1.3.1 [INFO] [stderr] Compiling ena v0.11.0 [INFO] [stderr] Compiling rand_chacha v0.1.1 [INFO] [stderr] Compiling aho-corasick v0.6.10 [INFO] [stderr] Compiling atty v0.2.11 [INFO] [stderr] Compiling matrixmultiply v0.1.15 [INFO] [stderr] Compiling block-padding v0.1.4 [INFO] [stderr] Compiling num-complex v0.2.1 [INFO] [stderr] Compiling generic-array v0.12.0 [INFO] [stderr] Compiling itertools v0.7.11 [INFO] [stderr] Compiling itertools v0.8.0 [INFO] [stderr] Compiling bit-set v0.5.1 [INFO] [stderr] Compiling hashbrown v0.1.8 [INFO] [stderr] Compiling rand v0.6.5 [INFO] [stderr] Compiling serde v1.0.90 [INFO] [stderr] Compiling petgraph v0.4.13 [INFO] [stderr] Checking clap v2.33.0 [INFO] [stderr] Compiling digest v0.8.0 [INFO] [stderr] Compiling block-buffer v0.7.3 [INFO] [stderr] Compiling sha2 v0.8.0 [INFO] [stderr] Compiling ndarray v0.12.1 [INFO] [stderr] Compiling phf_generator v0.7.24 [INFO] [stderr] Compiling regex v1.1.6 [INFO] [stderr] Compiling string_cache_codegen v0.4.2 [INFO] [stderr] Compiling regex v0.2.11 [INFO] [stderr] Compiling string_cache v0.7.3 [INFO] [stderr] Compiling llvm-sys v60.4.0 [INFO] [stderr] Compiling strsim v0.9.1 [INFO] [stderr] Compiling docopt v1.1.0 [INFO] [stderr] thread 'rustc' panicked at 'called `Option::unwrap()` on a `None` value', src/librustc/hir/mod.rs:81:37 [INFO] [stderr] stack backtrace: [INFO] [stderr] 0: 0x7f2bec3290b4 - backtrace::backtrace::libunwind::trace::hdbfb90b3ac3ad82c [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/libunwind.rs:86 [INFO] [stderr] 1: 0x7f2bec3290b4 - backtrace::backtrace::trace_unsynchronized::hdc2d8de557dbdcaf [INFO] [stderr] at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.44/src/backtrace/mod.rs:66 [INFO] [stderr] 2: 0x7f2bec3290b4 - std::sys_common::backtrace::_print_fmt::hc847b4cbd733969c [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:78 [INFO] [stderr] 3: 0x7f2bec3290b4 - ::fmt::h1834f0d5f0f485d9 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:59 [INFO] [stderr] 4: 0x7f2bec361acc - core::fmt::write::h6932942104d5f1ae [INFO] [stderr] at src/libcore/fmt/mod.rs:1069 [INFO] [stderr] 5: 0x7f2bec31ade3 - std::io::Write::write_fmt::h6ea75dc393077354 [INFO] [stderr] at src/libstd/io/mod.rs:1427 [INFO] [stderr] 6: 0x7f2bec32df25 - std::sys_common::backtrace::_print::hbdd2af06305a234c [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:62 [INFO] [stderr] 7: 0x7f2bec32df25 - std::sys_common::backtrace::print::hfa2e5bb1407a0009 [INFO] [stderr] at src/libstd/sys_common/backtrace.rs:49 [INFO] [stderr] 8: 0x7f2bec32df25 - std::panicking::default_hook::{{closure}}::h4196b1a9c9da64a2 [INFO] [stderr] at src/libstd/panicking.rs:198 [INFO] [stderr] 9: 0x7f2bec32dc72 - std::panicking::default_hook::h853dd04629d084b0 [INFO] [stderr] at src/libstd/panicking.rs:218 [INFO] [stderr] 10: 0x7f2bec98c573 - rustc_driver::report_ice::h37110b2df4d302f9 [INFO] [stderr] 11: 0x7f2bec32e6a5 - std::panicking::rust_panic_with_hook::h06766489222c5b1f [INFO] [stderr] at src/libstd/panicking.rs:515 [INFO] [stderr] 12: 0x7f2bec32e1bb - rust_begin_unwind [INFO] [stderr] at src/libstd/panicking.rs:419 [INFO] [stderr] 13: 0x7f2bec35e761 - core::panicking::panic_fmt::h70f73dd0c53f6a1b [INFO] [stderr] at src/libcore/panicking.rs:111 [INFO] [stderr] 14: 0x7f2bec35e6ad - core::panicking::panic::h8949d295691d9372 [INFO] [stderr] at src/libcore/panicking.rs:54 [INFO] [stderr] 15: 0x7f2beed1d662 - core::ops::function::FnOnce::call_once::h12065f39f0b6311b [INFO] [stderr] 16: 0x7f2beead3a4b - rustc::ty::query::::compute::h10dbd539d40032dc [INFO] [stderr] 17: 0x7f2beeec2d46 - rustc::dep_graph::graph::DepGraph::with_task_impl::h22d1ca3dfce40383 [INFO] [stderr] 18: 0x7f2bee9a6248 - rustc::ty::query::plumbing::::get_query::h12f8870478f2960f [INFO] [stderr] 19: 0x7f2beef41752 - rustc::hir::map::Map::get_entry::hf2f179e059dc5b6b [INFO] [stderr] 20: 0x7f2beef43203 - rustc::hir::map::Map::find::heb2dc2f1416b8ea3 [INFO] [stderr] 21: 0x7f2bed714cc6 - rustc_passes::dead::MarkSymbolVisitor::check_def_id::h3bcbce5fca999079 [INFO] [stderr] 22: 0x7f2bed67c73b - rustc_hir::intravisit::walk_item::hfcde566590e287e5 [INFO] [stderr] 23: 0x7f2bed71766a - rustc_passes::dead::check_crate::h13e54a581f9d47cc [INFO] [stderr] 24: 0x7f2becb7e650 - rustc_session::utils::::time::h2458cf43f4082c3e [INFO] [stderr] 25: 0x7f2becbece43 - rustc_interface::passes::analysis::{{closure}}::{{closure}}::hdcc55c3c5716b148 [INFO] [stderr] 26: 0x7f2becb80d94 - rustc_session::utils::::time::h603ac2a75c23020f [INFO] [stderr] 27: 0x7f2becc17cb4 - rustc_interface::passes::analysis::hb2fbc780c128cb58 [INFO] [stderr] 28: 0x7f2bec998bc7 - rustc::ty::query::__query_compute::analysis::hc470241115f763ae [INFO] [stderr] 29: 0x7f2beca01b1e - rustc::dep_graph::graph::DepGraph::with_task_impl::h8145b42b895db173 [INFO] [stderr] 30: 0x7f2bec9d89a4 - rustc::ty::query::plumbing::::get_query::h425ea7995d3cc545 [INFO] [stderr] 31: 0x7f2beca10b97 - rustc::ty::context::tls::enter_global::h11e9f6894fc852b9 [INFO] [stderr] 32: 0x7f2bec9e1184 - rustc_interface::interface::run_compiler_in_existing_thread_pool::ha8f28fc7f7f9165a [INFO] [stderr] 33: 0x7f2bec99436c - std::sys_common::backtrace::__rust_begin_short_backtrace::h30918276b81a492f [INFO] [stderr] 34: 0x7f2bec9e3a0e - core::ops::function::FnOnce::call_once{{vtable.shim}}::he7fca40d43338451 [INFO] [stderr] 35: 0x7f2bec30a83f - as core::ops::function::FnOnce>::call_once::hbe1510c05c206603 [INFO] [stderr] at /rustc/d939f708d960161d23b964309ba68ff207fc0ead/src/liballoc/boxed.rs:1017 [INFO] [stderr] 36: 0x7f2bec33e1fd - as core::ops::function::FnOnce>::call_once::hfa7747e768ca5f70 [INFO] [stderr] at /rustc/d939f708d960161d23b964309ba68ff207fc0ead/src/liballoc/boxed.rs:1017 [INFO] [stderr] 37: 0x7f2bec33e1fd - std::sys_common::thread::start_thread::h82b98ca7eaf2b310 [INFO] [stderr] at src/libstd/sys_common/thread.rs:13 [INFO] [stderr] 38: 0x7f2bec33e1fd - std::sys::unix::thread::Thread::new::thread_start::h62648d7fb5a14d76 [INFO] [stderr] at src/libstd/sys/unix/thread.rs:80 [INFO] [stderr] 39: 0x7f2bec0a46db - start_thread [INFO] [stderr] 40: 0x7f2beb9c188f - __clone [INFO] [stderr] 41: 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 1.44.0-nightly (d939f708d 2020-03-18) 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] query stack during panic: [INFO] [stderr] #0 [hir_owner] processing `regex` [INFO] [stderr] #1 [analysis] running analysis passes on this crate [INFO] [stderr] end of query stack [INFO] [stderr] error: could not compile `docopt`. [INFO] [stderr] [INFO] [stderr] To learn more, run the command again with --verbose. [INFO] running `"docker" "inspect" "1dea87044538ae5dd618a04a3912065b61620e7138ade02aa9b2a9a15e20470b"` [INFO] running `"docker" "rm" "-f" "1dea87044538ae5dd618a04a3912065b61620e7138ade02aa9b2a9a15e20470b"` [INFO] [stdout] 1dea87044538ae5dd618a04a3912065b61620e7138ade02aa9b2a9a15e20470b