[INFO] fetching crate metamath-rs 0.3.8...
[INFO] testing metamath-rs-0.3.8 against master#350d0ef0ec0493e6d21cfb265cb8211a0e74d766 for pr-145330-1
[INFO] extracting crate metamath-rs 0.3.8 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate metamath-rs 0.3.8
[INFO] finished tweaking crates.io crate metamath-rs 0.3.8
[INFO] tweaked toml for crates.io crate metamath-rs 0.3.8 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate metamath-rs 0.3.8 on toolchain 350d0ef0ec0493e6d21cfb265cb8211a0e74d766
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding annotate-snippets v0.9.2 (available: v0.12.4)
[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.14.0)
[INFO] [stderr]       Adding xml-rs v0.8.27 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded annotate-snippets v0.9.2
[INFO] [stderr]   Downloaded yansi-term v0.1.2
[INFO] [stderr]   Downloaded dot-writer v0.1.4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51cc405255e13534ae457f9adb0b4d9291ce7b934a920f7b30eeabc4993329d9
[INFO] running `Command { std: "docker" "start" "-a" "51cc405255e13534ae457f9adb0b4d9291ce7b934a920f7b30eeabc4993329d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51cc405255e13534ae457f9adb0b4d9291ce7b934a920f7b30eeabc4993329d9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51cc405255e13534ae457f9adb0b4d9291ce7b934a920f7b30eeabc4993329d9", kill_on_drop: false }`
[INFO] [stdout] 51cc405255e13534ae457f9adb0b4d9291ce7b934a920f7b30eeabc4993329d9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 14c97df64433a54579730de022d805b5d02da3c391909f001192d56e5219a524
[INFO] running `Command { std: "docker" "start" "-a" "14c97df64433a54579730de022d805b5d02da3c391909f001192d56e5219a524", kill_on_drop: false }`
[INFO] [stderr]    Compiling regex-automata v0.4.11
[INFO] [stderr]    Compiling yansi-term v0.1.2
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling filetime v0.2.26
[INFO] [stderr]    Compiling annotate-snippets v0.9.2
[INFO] [stderr]    Compiling regex v1.11.3
[INFO] [stderr]    Compiling metamath-rs v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.44s
[INFO] running `Command { std: "docker" "inspect" "14c97df64433a54579730de022d805b5d02da3c391909f001192d56e5219a524", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "14c97df64433a54579730de022d805b5d02da3c391909f001192d56e5219a524", kill_on_drop: false }`
[INFO] [stdout] 14c97df64433a54579730de022d805b5d02da3c391909f001192d56e5219a524
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8653c3dc4a352009485eb91ad03ef1a356da57b76405f3c1d0207b72b202f1ec
[INFO] running `Command { std: "docker" "start" "-a" "8653c3dc4a352009485eb91ad03ef1a356da57b76405f3c1d0207b72b202f1ec", kill_on_drop: false }`
[INFO] [stderr]    Compiling assert_matches v1.5.0
[INFO] [stderr]    Compiling metamath-rs v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 4.86s
[INFO] running `Command { std: "docker" "inspect" "8653c3dc4a352009485eb91ad03ef1a356da57b76405f3c1d0207b72b202f1ec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8653c3dc4a352009485eb91ad03ef1a356da57b76405f3c1d0207b72b202f1ec", kill_on_drop: false }`
[INFO] [stdout] 8653c3dc4a352009485eb91ad03ef1a356da57b76405f3c1d0207b72b202f1ec
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+350d0ef0ec0493e6d21cfb265cb8211a0e74d766" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c0fb1751a70946fa7c9ad29bf51f92243fcc034733234afc91c819d675ba443d
[INFO] running `Command { std: "docker" "start" "-a" "c0fb1751a70946fa7c9ad29bf51f92243fcc034733234afc91c819d675ba443d", kill_on_drop: false }`
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/metamath_rs-f53b435e0b0a24b2)
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test comment_parser_tests::test_basic ... ok
[INFO] [stderr] 
[INFO] [stdout] test comment_parser_tests::edge_cases ... ok
[INFO] [stderr] thread 'grammar_tests::test_ambiguous' (44) panicked at src/util.rs:38:17:
[INFO] [stdout] test comment_parser_tests::test_bib ... ok
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked_mut requires that the index is within the slice
[INFO] [stdout] test comment_parser_tests::test_html ... ok
[INFO] [stderr] 
[INFO] [stdout] test comment_parser_tests::test_label ... ok
[INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.
[INFO] [stdout] test comment_parser_tests::test_para ... ok
[INFO] [stderr] stack backtrace:
[INFO] [stdout] test comment_parser_tests::test_double_underscore ... ok
[INFO] [stdout] test comment_parser_tests::test_discouragements ... ok
[INFO] [stdout] test comment_parser_tests::test_subscript ... ok
[INFO] [stdout] test comment_parser_tests::test_italic ... ok
[INFO] [stdout] test comment_parser_tests::test_three_subscript ... ok
[INFO] [stdout] test comment_parser_tests::test_two_subscript ... ok
[INFO] [stderr]    0:     0x637df7f77a62 - std::backtrace_rs::backtrace::libunwind::trace::h0fb8082ca5562a61
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x637df7f77a62 - std::backtrace_rs::backtrace::trace_unsynchronized::hfaa258994374a3cd
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x637df7f77a62 - std::sys::backtrace::_print_fmt::h11496fe34963a885
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x637df7f77a62 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::hff1a9408d012ee89
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x637df7f9beef - core::fmt::rt::Argument::fmt::hf11195b61445f5d1
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]    5:     0x637df7f9beef - core::fmt::write::h2f1fc679f228cc52
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/fmt/mod.rs:1468:25
[INFO] [stderr]    6:     0x637df7f66e73 - std::io::default_write_fmt::hdd5e6d67566e664d
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x637df7f66e73 - std::io::Write::write_fmt::haa2231cbd9aebf95
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]    8:     0x637df7f778b2 - std::sys::backtrace::BacktraceLock::print::h28bfdbcac6d3828b
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    9:     0x637df7f62f6c - std::panicking::default_hook::{{closure}}::h1f968e3a24b0e3b4
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:301:27
[INFO] [stderr]   10:     0x637df7f62db1 - std::panicking::default_hook::h43da101644971931
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:328:9
[INFO] [stderr]   11:     0x637df7c8d01e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h4b2012949041da5d
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9
[INFO] [stderr]   12:     0x637df7c8d01e - test::test_main_with_exit_callback::{{closure}}::h53c9154cdc260357
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x637df7f63573 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h911f2e3e7e84b764
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1985:9
[INFO] [stderr]   14:     0x637df7f63573 - std::panicking::panic_with_hook::hb4e916c3e65eccec
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:842:13
[INFO] [stderr]   15:     0x637df7f77406 - std::panicking::panic_handler::{{closure}}::hbff715d0475cf1bd
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:700:13
[INFO] [stderr]   16:     0x637df7f77399 - std::sys::backtrace::__rust_end_short_backtrace::hd6f43484e45a4955
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]   17:     0x637df7f63add - __rustc[b29d3319de9a3146]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:698:5
[INFO] [stderr]   18:     0x637df7fa298d - core::panicking::panic_nounwind_fmt::runtime::hfdf11e78ca5c7d79
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panicking.rs:117:22
[INFO] [stderr]   19:     0x637df7fa298d - core::panicking::panic_nounwind_fmt::hfe299d8bebaba346
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/intrinsics/mod.rs:2361:9
[INFO] [stderr]   20:     0x637df7c190bc - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::precondition_check::h93903fc0efb034a0
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ub_checks.rs:72:21
[INFO] [stderr]   21:     0x637df7c195c9 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::h130364d9f0e62e5b
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ub_checks.rs:77:17
[INFO] [stderr]   22:     0x637df7c786a8 - core::slice::<impl [T]>::get_unchecked_mut::h96e6927614b701b4
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/slice/mod.rs:689:30
[INFO] [stderr]   23:     0x637df7bf4c71 - metamath_rs::util::fast_extend::h4b699ebf29f3902a
[INFO] [stderr]                                at /opt/rustwide/workdir/src/util.rs:38:17
[INFO] [stderr]   24:     0x637df7c25f3b - metamath_rs::scopeck::scan_expression::ha08677c8da95e382
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:493:17
[INFO] [stderr]   25:     0x637df7c26664 - metamath_rs::scopeck::construct_full_frame::h855cc90d35784c45
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:598:20
[INFO] [stderr]   26:     0x637df7c27bac - metamath_rs::scopeck::scope_check_assert::h8e07570c0ab0cecf
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:638:13
[INFO] [stderr]   27:     0x637df7c21155 - metamath_rs::scopeck::scope_check_single::hf881bc2617b83111
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:913:63
[INFO] [stderr]   28:     0x637df7c22582 - metamath_rs::scopeck::scope_check::{{closure}}::hc1c26b949805e25d
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:999:31
[INFO] [stderr]   29:     0x637df7c1abd3 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h7c85c6c66ca69829
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   30:     0x637df7bedc30 - std::panicking::catch_unwind::do_call::h78dd4e235d14f011
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stderr]   31:     0x637df7bcfaeb - __rust_try
[INFO] [stderr]   32:     0x637df7bcf38e - std::panicking::catch_unwind::heaefd649b5ec16a2
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stderr]   33:     0x637df7bcf38e - std::panic::catch_unwind::hca14686276e97acc
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stderr]   34:     0x637df7c01db0 - metamath_rs::database::Executor::exec::{{closure}}::h6d652e2ed8c8ff14
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:292:27
[INFO] [stderr]   35:     0x637df7c49cf6 - <alloc::boxed::Box<F,A> as core::ops::function::FnMut<Args>>::call_mut::h8f3a0f428a08e173
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1978:9
[INFO] [stderr]   36:     0x637df7c03535 - metamath_rs::database::queue_work::h8ba1e18aa25beb10
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:222:9
[INFO] [stderr]   37:     0x637df7c01b26 - metamath_rs::database::Executor::exec::hd577b969f26a86ac
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:285:9
[INFO] [stderr]   38:     0x637df7c2478d - metamath_rs::scopeck::scope_check::h86f0044275dd8b53
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:989:42
[INFO] [stderr]   39:     0x637df7c0406b - metamath_rs::database::Database::scope_pass::{{closure}}::h8567e9cfb300418b
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:551:17
[INFO] [stderr]   40:     0x637df7c056bc - metamath_rs::database::time::h479487796713bb1a
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:417:15
[INFO] [stderr]   41:     0x637df7c02c8b - metamath_rs::database::Database::scope_pass::he5c7fba9898e10ff
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:547:13
[INFO] [stderr]   42:     0x637df7c0584e - metamath_rs::database::Database::grammar_pass::h8cef93562f3374d1
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:717:18
[INFO] [stderr]   43:     0x637df7c0bfe0 - metamath_rs::grammar_tests::test_ambiguous::h1b2b8a22294e48ef
[INFO] [stderr]                                at /opt/rustwide/workdir/src/grammar_tests.rs:325:30
[INFO] [stderr]   44:     0x637df7c0bf17 - metamath_rs::grammar_tests::test_ambiguous::{{closure}}::hbfc393fa67b2eeb4
[INFO] [stderr]                                at /opt/rustwide/workdir/src/grammar_tests.rs:322:19
[INFO] [stderr]   45:     0x637df7c6a016 - core::ops::function::FnOnce::call_once::h3693e4c898f933ff
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   46:     0x637df7c9255b - core::ops::function::FnOnce::call_once::haf4e03bb51ef1351
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   47:     0x637df7c9255b - test::__rust_begin_short_backtrace::h50f5566ee84f2f21
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:663:18
[INFO] [stderr]   48:     0x637df7c95755 - test::run_test_in_process::{{closure}}::heb3733b71d876eca
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:686:74
[INFO] [stderr]   49:     0x637df7c95755 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::he2fe41e1b161faa9
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   50:     0x637df7c95755 - std::panicking::catch_unwind::do_call::h00aa383d8fd97a09
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stderr]   51:     0x637df7c95755 - std::panicking::catch_unwind::he482e1914bc21641
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stderr]   52:     0x637df7c95755 - std::panic::catch_unwind::h86ac9705098f4f22
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stderr]   53:     0x637df7c95755 - test::run_test_in_process::h636a992821e3c6aa
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:686:27
[INFO] [stderr]   54:     0x637df7c95755 - test::run_test::{{closure}}::he454cc9a192df79f
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:607:43
[INFO] [stderr]   55:     0x637df7cbb104 - test::run_test::{{closure}}::haec47455908dff86
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/test/src/lib.rs:637:41
[INFO] [stderr]   56:     0x637df7cbb104 - std::sys::backtrace::__rust_begin_short_backtrace::h230785972524cdc1
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/backtrace.rs:158:18
[INFO] [stderr]   57:     0x637df7ca1d1a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::haa5a562db4cde838
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:559:17
[INFO] [stderr]   58:     0x637df7ca1d1a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h89254f37a55d0a87
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/panic/unwind_safe.rs:272:9
[INFO] [stderr]   59:     0x637df7ca1d1a - std::panicking::catch_unwind::do_call::h499f5a462f019d9d
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:590:40
[INFO] [stderr]   60:     0x637df7ca1d1a - std::panicking::catch_unwind::h6736fbbb1a264383
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panicking.rs:553:19
[INFO] [stderr]   61:     0x637df7ca1d1a - std::panic::catch_unwind::h49ea7bdd1cbee572
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/panic.rs:359:14
[INFO] [stderr]   62:     0x637df7ca1d1a - std::thread::Builder::spawn_unchecked_::{{closure}}::h653dfa62acf32f5a
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/thread/mod.rs:557:30
[INFO] [stderr]   63:     0x637df7ca1d1a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h82582a626a045a45
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/core/src/ops/function.rs:253:5
[INFO] [stderr]   64:     0x637df7f4e1af - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4ab26c07513156cc
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/alloc/src/boxed.rs:1971:9
[INFO] [stderr]   65:     0x637df7f4e1af - std::sys::pal::unix::thread::Thread::new::thread_start::h66ff1bba185a50cf
[INFO] [stderr]                                at /rustc/350d0ef0ec0493e6d21cfb265cb8211a0e74d766/library/std/src/sys/pal/unix/thread.rs:107:17
[INFO] [stderr]   66:     0x75a9cc274aa4 - <unknown>
[INFO] [stderr]   67:     0x75a9cc301a34 - clone
[INFO] [stderr]   68:                0x0 - <unknown>
[INFO] [stderr] thread caused non-unwinding panic. aborting.
[INFO] [stderr] error: test failed, to rerun pass `--lib`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/deps/metamath_rs-f53b435e0b0a24b2` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "c0fb1751a70946fa7c9ad29bf51f92243fcc034733234afc91c819d675ba443d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0fb1751a70946fa7c9ad29bf51f92243fcc034733234afc91c819d675ba443d", kill_on_drop: false }`
[INFO] [stdout] c0fb1751a70946fa7c9ad29bf51f92243fcc034733234afc91c819d675ba443d