[INFO] fetching crate metamath-rs 0.3.8...
[INFO] testing metamath-rs-0.3.8 against try#9f93af291970322f4f1c6315ccde4d7078201159 for pr-146098-6
[INFO] extracting crate metamath-rs 0.3.8 into /workspace/builds/worker-1-tc2/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-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate metamath-rs 0.3.8 on toolchain 9f93af291970322f4f1c6315ccde4d7078201159
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "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" "+9f93af291970322f4f1c6315ccde4d7078201159" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 37 packages to latest compatible versions
[INFO] [stderr]       Adding annotate-snippets v0.9.2 (available: v0.12.8)
[INFO] [stderr]       Adding itertools v0.12.1 (available: v0.14.0)
[INFO] [stderr]       Adding xml-rs v0.8.28 (available: v1.0.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4c4944228ac2003bbc85abd341d17bc24b0a5417de1036deb4fdf98f1f47142
[INFO] running `Command { std: "docker" "start" "-a" "b4c4944228ac2003bbc85abd341d17bc24b0a5417de1036deb4fdf98f1f47142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4c4944228ac2003bbc85abd341d17bc24b0a5417de1036deb4fdf98f1f47142", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4c4944228ac2003bbc85abd341d17bc24b0a5417de1036deb4fdf98f1f47142", kill_on_drop: false }`
[INFO] [stdout] b4c4944228ac2003bbc85abd341d17bc24b0a5417de1036deb4fdf98f1f47142
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 126bb2053c69b7ab01cd5efd68f90abd7bd4195093da106b14355c91b51082fe
[INFO] running `Command { std: "docker" "start" "-a" "126bb2053c69b7ab01cd5efd68f90abd7bd4195093da106b14355c91b51082fe", kill_on_drop: false }`
[INFO] [stderr]    Compiling yansi-term v0.1.2
[INFO] [stderr]    Compiling typed-arena v2.0.2
[INFO] [stderr]    Compiling tinyvec v1.10.0
[INFO] [stderr]    Compiling itertools v0.12.1
[INFO] [stderr]    Compiling regex-automata v0.4.13
[INFO] [stderr]    Compiling annotate-snippets v0.9.2
[INFO] [stderr]    Compiling regex v1.12.2
[INFO] [stderr]    Compiling metamath-rs v0.3.8 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 7.08s
[INFO] running `Command { std: "docker" "inspect" "126bb2053c69b7ab01cd5efd68f90abd7bd4195093da106b14355c91b51082fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "126bb2053c69b7ab01cd5efd68f90abd7bd4195093da106b14355c91b51082fe", kill_on_drop: false }`
[INFO] [stdout] 126bb2053c69b7ab01cd5efd68f90abd7bd4195093da106b14355c91b51082fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b4b6c1d0963d2cc4b43752453c23e144687409b53a9a51d7c56f8a286fd6a26d
[INFO] running `Command { std: "docker" "start" "-a" "b4b6c1d0963d2cc4b43752453c23e144687409b53a9a51d7c56f8a286fd6a26d", 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 4.97s
[INFO] running `Command { std: "docker" "inspect" "b4b6c1d0963d2cc4b43752453c23e144687409b53a9a51d7c56f8a286fd6a26d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4b6c1d0963d2cc4b43752453c23e144687409b53a9a51d7c56f8a286fd6a26d", kill_on_drop: false }`
[INFO] [stdout] b4b6c1d0963d2cc4b43752453c23e144687409b53a9a51d7c56f8a286fd6a26d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+9f93af291970322f4f1c6315ccde4d7078201159" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] cf73c5da9dc6d9b822c31c78b7a9bf1c2aa50a676b5c855d22cb825cf79c386c
[INFO] running `Command { std: "docker" "start" "-a" "cf73c5da9dc6d9b822c31c78b7a9bf1c2aa50a676b5c855d22cb825cf79c386c", 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-dc25e9747446d532)
[INFO] [stdout] 
[INFO] [stdout] running 50 tests
[INFO] [stdout] test comment_parser_tests::edge_cases ... ok
[INFO] [stdout] test comment_parser_tests::test_basic ... ok
[INFO] [stdout] test comment_parser_tests::test_html ... ok
[INFO] [stdout] test comment_parser_tests::test_bib ... ok
[INFO] [stderr] 
[INFO] [stderr] thread 'formula_tests::test_substitute' (41) panicked at src/util.rs:38:17:
[INFO] [stderr] unsafe precondition(s) violated: slice::get_unchecked_mut requires that the index is within the slice
[INFO] [stderr] 
[INFO] [stderr] This indicates a bug in the program. This Undefined Behavior check is optional, and cannot be relied on for safety.
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x61e8b5e8c8b2 - std::backtrace_rs::backtrace::libunwind::trace::h16affffe904e891e
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]    1:     0x61e8b5e8c8b2 - std::backtrace_rs::backtrace::trace_unsynchronized::h5c14b13373ed4150
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]    2:     0x61e8b5e8c8b2 - std::sys::backtrace::_print_fmt::hcbb507f162c816cc
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]    3:     0x61e8b5e8c8b2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h8be9aa933f14675f
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]    4:     0x61e8b5e9d31f - core::fmt::rt::Argument::fmt::h30ed739d33467c3a
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/rt.rs:173:76
[INFO] [stderr]    5:     0x61e8b5e9d31f - core::fmt::write::hfd0efbb002ac7eea
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/fmt/mod.rs:1469:25
[INFO] [stderr]    6:     0x61e8b5e5a3b3 - std::io::default_write_fmt::hf7668c9f69c3a921
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:639:11
[INFO] [stderr]    7:     0x61e8b5e5a3b3 - std::io::Write::write_fmt::ha6503cd07dd1d506
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/io/mod.rs:1954:13
[INFO] [stderr]    8:     0x61e8b5e66102 - std::sys::backtrace::BacktraceLock::print::hf2554f6030d393f7
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]    9:     0x61e8b5e6abff - std::panicking::default_hook::{{closure}}::h8873121c56335b01
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:301:27
[INFO] [stderr]   10:     0x61e8b5e6aa59 - std::panicking::default_hook::hbafefc2d196267a2
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:328:9
[INFO] [stderr]   11:     0x61e8b5bb098e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::ha834d5846f91b30b
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stderr]   12:     0x61e8b5bb098e - test::test_main_with_exit_callback::{{closure}}::h63c167737eecb025
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:145:21
[INFO] [stderr]   13:     0x61e8b5e6b20f - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hbf9b0f7a281291fd
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2099:9
[INFO] [stderr]   14:     0x61e8b5e6b20f - std::panicking::panic_with_hook::h9f5b09d5adc1a745
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:842:13
[INFO] [stderr]   15:     0x61e8b5e6b036 - std::panicking::panic_handler::{{closure}}::h08111e483bdf6a89
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:700:13
[INFO] [stderr]   16:     0x61e8b5e66239 - std::sys::backtrace::__rust_end_short_backtrace::h1b86e3414ecbbe8d
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]   17:     0x61e8b5e4ea4d - __rustc[b292c645e8102103]::rust_begin_unwind
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:698:5
[INFO] [stderr]   18:     0x61e8b5ea5a4d - core::panicking::panic_nounwind_fmt::runtime::hdc3e454f690461fc
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panicking.rs:122:22
[INFO] [stderr]   19:     0x61e8b5ea5a4d - core::panicking::panic_nounwind_fmt::h0f491c26d5575477
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/intrinsics/mod.rs:2439:9
[INFO] [stderr]   20:     0x61e8b5b6d46c - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::precondition_check::h6fdcc5be4e0a7b7d
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ub_checks.rs:73:21
[INFO] [stderr]   21:     0x61e8b5b6d3b9 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked_mut::h9655cab4fb055b4a
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ub_checks.rs:78:17
[INFO] [stderr]   22:     0x61e8b5b21ca8 - core::slice::<impl [T]>::get_unchecked_mut::he301d4cb5a8b0def
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/slice/mod.rs:689:30
[INFO] [stderr]   23:     0x61e8b5b670ba - metamath_rs::util::fast_extend::hc550b149922af5ef
[INFO] [stderr]                                at /opt/rustwide/workdir/src/util.rs:38:17
[INFO] [stderr]   24:     0x61e8b5b1c42d - metamath_rs::scopeck::scan_expression::h7051d9bdc3a3f190
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:493:17
[INFO] [stderr]   25:     0x61e8b5b1e034 - metamath_rs::scopeck::construct_full_frame::hd82123f118958692
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:598:20
[INFO] [stderr]   26:     0x61e8b5b1d25c - metamath_rs::scopeck::scope_check_assert::h5fcc503edc193efb
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:638:13
[INFO] [stderr]   27:     0x61e8b5b1d89e - metamath_rs::scopeck::scope_check_single::h1b0291e5c0157324
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:913:63
[INFO] [stderr]   28:     0x61e8b5b1b4b2 - metamath_rs::scopeck::scope_check::{{closure}}::hc1af410f937103de
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:999:31
[INFO] [stderr]   29:     0x61e8b5b299d3 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1650ffe4e0bf543a
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   30:     0x61e8b5b723d7 - std::panicking::catch_unwind::do_call::h489edc80c4417442
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stderr]   31:     0x61e8b5ad6e5b - __rust_try
[INFO] [stderr]   32:     0x61e8b5ac952e - std::panicking::catch_unwind::hf4d4b6a026c03b02
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stderr]   33:     0x61e8b5ac952e - std::panic::catch_unwind::h3c74c3c9d12bfb45
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stderr]   34:     0x61e8b5b4c330 - metamath_rs::database::Executor::exec::{{closure}}::he3f0d48c3f1675b7
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:292:27
[INFO] [stderr]   35:     0x61e8b5b3a486 - <alloc::boxed::Box<F,A> as core::ops::function::FnMut<Args>>::call_mut::h3f0957484e2a2b46
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2092:9
[INFO] [stderr]   36:     0x61e8b5b46ff5 - metamath_rs::database::queue_work::hcd56644e84b77505
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:222:9
[INFO] [stderr]   37:     0x61e8b5b4a6d6 - metamath_rs::database::Executor::exec::h24c0fbb0c91b6f64
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:285:9
[INFO] [stderr]   38:     0x61e8b5b1b16f - metamath_rs::scopeck::scope_check::hcab02c5dd901fd6e
[INFO] [stderr]                                at /opt/rustwide/workdir/src/scopeck.rs:989:42
[INFO] [stderr]   39:     0x61e8b5b48d5b - metamath_rs::database::Database::scope_pass::{{closure}}::h8c5516480e035bdc
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:551:17
[INFO] [stderr]   40:     0x61e8b5b47e8c - metamath_rs::database::time::h0f03dc91441cf0ef
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:417:15
[INFO] [stderr]   41:     0x61e8b5b48c6b - metamath_rs::database::Database::scope_pass::h4ffbf6ac9933fce1
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:547:13
[INFO] [stderr]   42:     0x61e8b5b4904e - metamath_rs::database::Database::stmt_parse_pass::hc9b30a79cfd0f61c
[INFO] [stderr]                                at /opt/rustwide/workdir/src/database.rs:747:18
[INFO] [stderr]   43:     0x61e8b5b60075 - metamath_rs::formula_tests::test_substitute::h6e6ac9f7119ef913
[INFO] [stderr]                                at /opt/rustwide/workdir/src/formula_tests.rs:69:25
[INFO] [stderr]   44:     0x61e8b5b60b57 - metamath_rs::formula_tests::test_substitute::{{closure}}::h86be935d86629a69
[INFO] [stderr]                                at /opt/rustwide/workdir/src/formula_tests.rs:67:21
[INFO] [stderr]   45:     0x61e8b5b84cc6 - core::ops::function::FnOnce::call_once::ha167fdd8f5df7274
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   46:     0x61e8b5bb078b - core::ops::function::FnOnce::call_once::h2b2de5fdd23aab3e
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   47:     0x61e8b5bb078b - test::__rust_begin_short_backtrace::he551dd004770be01
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:663:18
[INFO] [stderr]   48:     0x61e8b5bc47ed - test::run_test_in_process::{{closure}}::h5f0b44080a35ed87
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:74
[INFO] [stderr]   49:     0x61e8b5bc47ed - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h4dbf65d14893ecf5
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   50:     0x61e8b5bc47ed - std::panicking::catch_unwind::do_call::hc37c563b8a006285
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stderr]   51:     0x61e8b5bc47ed - std::panicking::catch_unwind::h616b6e2e7a27f612
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stderr]   52:     0x61e8b5bc47ed - std::panic::catch_unwind::h1e788dd57758e6d8
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stderr]   53:     0x61e8b5bc47ed - test::run_test_in_process::hf073c2764f29f8ad
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:686:27
[INFO] [stderr]   54:     0x61e8b5bc47ed - test::run_test::{{closure}}::h3dc46b7a0c340fa6
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:607:43
[INFO] [stderr]   55:     0x61e8b5b9dd34 - test::run_test::{{closure}}::h6a4da3c57ef4505f
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/test/src/lib.rs:637:41
[INFO] [stderr]   56:     0x61e8b5b9dd34 - std::sys::backtrace::__rust_begin_short_backtrace::hfd8e44bc311a5d57
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/backtrace.rs:158:18
[INFO] [stderr]   57:     0x61e8b5ba158a - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h57c4ddec344fe24c
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:562:17
[INFO] [stderr]   58:     0x61e8b5ba158a - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hd7cbe09591f06dfb
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/panic/unwind_safe.rs:274:9
[INFO] [stderr]   59:     0x61e8b5ba158a - std::panicking::catch_unwind::do_call::hdcd076e8e993dfbc
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:590:40
[INFO] [stderr]   60:     0x61e8b5ba158a - std::panicking::catch_unwind::h8f9f675f3756eab1
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panicking.rs:553:19
[INFO] [stderr]   61:     0x61e8b5ba158a - std::panic::catch_unwind::he8f74a93abeceb9b
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/panic.rs:359:14
[INFO] [stderr]   62:     0x61e8b5ba158a - std::thread::Builder::spawn_unchecked_::{{closure}}::he43db13a2caa41d5
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/thread/mod.rs:560:30
[INFO] [stderr]   63:     0x61e8b5ba158a - core::ops::function::FnOnce::call_once{{vtable.shim}}::h8f3531a7e0d83514
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/core/src/ops/function.rs:250:5
[INFO] [stderr]   64:     0x61e8b5e6163f - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h6ff05134d80ef20e
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/alloc/src/boxed.rs:2085:9
[INFO] [stderr]   65:     0x61e8b5e6163f - std::sys::thread::unix::Thread::new::thread_start::h9a4a41a076a486e0
[INFO] [stderr]                                at /rustc/9f93af291970322f4f1c6315ccde4d7078201159/library/std/src/sys/thread/unix.rs:124:17
[INFO] [stderr]   66:     0x772b2ccbcaa4 - <unknown>
[INFO] [stderr]   67:     0x772b2cd49a64 - 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-dc25e9747446d532` (signal: 6, SIGABRT: process abort signal)
[INFO] running `Command { std: "docker" "inspect" "cf73c5da9dc6d9b822c31c78b7a9bf1c2aa50a676b5c855d22cb825cf79c386c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf73c5da9dc6d9b822c31c78b7a9bf1c2aa50a676b5c855d22cb825cf79c386c", kill_on_drop: false }`
[INFO] [stdout] cf73c5da9dc6d9b822c31c78b7a9bf1c2aa50a676b5c855d22cb825cf79c386c
