[INFO] cloning repository https://github.com/mah-shee/panasonic2020
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mah-shee/panasonic2020" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmah-shee%2Fpanasonic2020", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmah-shee%2Fpanasonic2020'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3801001758609b861d17a14b55c345cdb94530f1
[INFO] documenting mah-shee/panasonic2020 against beta-2023-07-23 for beta-1.72-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmah-shee%2Fpanasonic2020" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/mah-shee/panasonic2020 on toolchain beta-2023-07-23
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-07-23" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/mah-shee/panasonic2020
[INFO] finished tweaking git repo https://github.com/mah-shee/panasonic2020
[INFO] tweaked toml for git repo https://github.com/mah-shee/panasonic2020 written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/mah-shee/panasonic2020 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2023-07-23" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-07-23" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 978bb1befba499db68030d59597c520b1bc07a8fc04f4725a11b078a6ec51730
[INFO] running `Command { std: "docker" "start" "-a" "978bb1befba499db68030d59597c520b1bc07a8fc04f4725a11b078a6ec51730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "978bb1befba499db68030d59597c520b1bc07a8fc04f4725a11b078a6ec51730", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "978bb1befba499db68030d59597c520b1bc07a8fc04f4725a11b078a6ec51730", kill_on_drop: false }`
[INFO] [stdout] 978bb1befba499db68030d59597c520b1bc07a8fc04f4725a11b078a6ec51730
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:5c16f4e6c37141f9fef0bc86f7a492d732943053e42aab8461035881e3f53823" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2023-07-23" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b41bfdb60dc6da81c9771335f1a04e0912fbc9473e6459b0a1f3ac875c4f488c
[INFO] running `Command { std: "docker" "start" "-a" "b41bfdb60dc6da81c9771335f1a04e0912fbc9473e6459b0a1f3ac875c4f488c", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr] thread 'rustc' panicked at 'assertion failed: pos.get() <= self.position()', compiler/rustc_metadata/src/rmeta/encoder.rs:428:9
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f317287ca71 - std::backtrace_rs::backtrace::libunwind::trace::ha421025fbf64eac2
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]    1:     0x7f317287ca71 - std::backtrace_rs::backtrace::trace_unsynchronized::h7aa8809c670705df
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f317287ca71 - std::sys_common::backtrace::_print_fmt::hef118a4dc8c974ac
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]    3:     0x7f317287ca71 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hd321ae06fa5a64d3
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x7f31728e2d7f - core::fmt::rt::Argument::fmt::h93afda32597f1fb5
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/core/src/fmt/rt.rs:138:9
[INFO] [stderr]    5:     0x7f31728e2d7f - core::fmt::write::hcfcaae57c967bc1a
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/core/src/fmt/mod.rs:1094:21
[INFO] [stderr]    6:     0x7f317286f4b7 - std::io::Write::write_fmt::hbba9ea5d7c830803
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/io/mod.rs:1714:15
[INFO] [stderr]    7:     0x7f317287c885 - std::sys_common::backtrace::_print::hf58d697cae8670b7
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x7f317287c885 - std::sys_common::backtrace::print::h550d0ea0935dfc81
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x7f317287f663 - std::panicking::default_hook::{{closure}}::h29566fd099eb5ad1
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/panicking.rs:269:22
[INFO] [stderr]   10:     0x7f317287f3f4 - std::panicking::default_hook::hb7bf2fb41cb5dcac
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/panicking.rs:288:9
[INFO] [stderr]   11:     0x7f3175b4e14b - <rustc_driver_impl[148dc445df396bc5]::install_ice_hook::{closure#0} as core[189e84d0b90779b2]::ops::function::FnOnce<(&core[189e84d0b90779b2]::panic::panic_info::PanicInfo,)>>::call_once::{shim:vtable#0}
[INFO] [stderr]   12:     0x7f317287fe8e - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::h54ce6c173e0ca47d
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/alloc/src/boxed.rs:2007:9
[INFO] [stderr]   13:     0x7f317287fe8e - std::panicking::rust_panic_with_hook::h19d665fac22ae3d0
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/panicking.rs:709:13
[INFO] [stderr]   14:     0x7f317287fbd1 - std::panicking::begin_panic_handler::{{closure}}::hb51cae4483a0f2b3
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/panicking.rs:595:13
[INFO] [stderr]   15:     0x7f317287ced6 - std::sys_common::backtrace::__rust_end_short_backtrace::hec51d2f713f55bfb
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/sys_common/backtrace.rs:151:18
[INFO] [stderr]   16:     0x7f317287f962 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/panicking.rs:593:5
[INFO] [stderr]   17:     0x7f31728defd3 - core::panicking::panic_fmt::h403f13fa5ca340be
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/core/src/panicking.rs:67:14
[INFO] [stderr]   18:     0x7f31728df063 - core::panicking::panic::hedcd4b46b03e4c00
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/core/src/panicking.rs:117:5
[INFO] [stderr]   19:     0x7f3174716a80 - <rustc_span[944eb558344b2dca]::hygiene::HygieneEncodeContext>::encode::<(&mut rustc_metadata[51c94c240374e24b]::rmeta::encoder::EncodeContext, &mut rustc_metadata[51c94c240374e24b]::rmeta::table::TableBuilder<u32, core[189e84d0b90779b2]::option::Option<rustc_metadata[51c94c240374e24b]::rmeta::LazyValue<rustc_span[944eb558344b2dca]::hygiene::SyntaxContextData>>>, &mut rustc_metadata[51c94c240374e24b]::rmeta::table::TableBuilder<rustc_span[944eb558344b2dca]::hygiene::ExpnIndex, core[189e84d0b90779b2]::option::Option<rustc_metadata[51c94c240374e24b]::rmeta::LazyValue<rustc_span[944eb558344b2dca]::hygiene::ExpnData>>>, &mut rustc_metadata[51c94c240374e24b]::rmeta::table::TableBuilder<rustc_span[944eb558344b2dca]::hygiene::ExpnIndex, core[189e84d0b90779b2]::option::Option<rustc_metadata[51c94c240374e24b]::rmeta::LazyValue<rustc_span[944eb558344b2dca]::hygiene::ExpnHash>>>), <rustc_metadata[51c94c240374e24b]::rmeta::encoder::EncodeContext>::encode_hygiene::{closure#0}, <rustc_metadata[51c94c240374e24b]::rmeta::encoder::EncodeContext>::encode_hygiene::{closure#1}>
[INFO] [stderr]   20:     0x7f31746f169c - <rustc_metadata[51c94c240374e24b]::rmeta::encoder::EncodeContext>::encode_crate_root
[INFO] [stderr]   21:     0x7f31746ea4c7 - rustc_metadata[51c94c240374e24b]::rmeta::encoder::encode_metadata_impl
[INFO] [stderr]   22:     0x7f317503d946 - rustc_metadata[51c94c240374e24b]::rmeta::encoder::encode_metadata
[INFO] [stderr]   23:     0x7f317503be79 - rustc_metadata[51c94c240374e24b]::fs::encode_and_write_metadata
[INFO] [stderr]   24:     0x7f3175028d70 - rustc_interface[da89d8f332c7499d]::passes::start_codegen
[INFO] [stderr]   25:     0x7f3175022b6a - <rustc_middle[39cea5dfaae892fc]::ty::context::GlobalCtxt>::enter::<<rustc_interface[da89d8f332c7499d]::queries::Queries>::ongoing_codegen::{closure#0}, core[189e84d0b90779b2]::result::Result<alloc[9a14f5584c328426]::boxed::Box<dyn core[189e84d0b90779b2]::any::Any>, rustc_span[944eb558344b2dca]::ErrorGuaranteed>>
[INFO] [stderr]   26:     0x7f3175021b83 - <rustc_interface[da89d8f332c7499d]::interface::Compiler>::enter::<rustc_driver_impl[148dc445df396bc5]::run_compiler::{closure#1}::{closure#2}, core[189e84d0b90779b2]::result::Result<core[189e84d0b90779b2]::option::Option<rustc_interface[da89d8f332c7499d]::queries::Linker>, rustc_span[944eb558344b2dca]::ErrorGuaranteed>>
[INFO] [stderr]   27:     0x7f317501ac75 - rustc_span[944eb558344b2dca]::set_source_map::<core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>, rustc_interface[da89d8f332c7499d]::interface::run_compiler<core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>, rustc_driver_impl[148dc445df396bc5]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
[INFO] [stderr]   28:     0x7f317501a6e6 - <scoped_tls[4e3f89cb74112990]::ScopedKey<rustc_span[944eb558344b2dca]::SessionGlobals>>::set::<rustc_interface[da89d8f332c7499d]::interface::run_compiler<core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>, rustc_driver_impl[148dc445df396bc5]::run_compiler::{closure#1}>::{closure#0}, core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>>
[INFO] [stderr]   29:     0x7f3175019cac - std[e9fabc67614b9e87]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[da89d8f332c7499d]::util::run_in_thread_pool_with_globals<rustc_interface[da89d8f332c7499d]::interface::run_compiler<core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>, rustc_driver_impl[148dc445df396bc5]::run_compiler::{closure#1}>::{closure#0}, core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>>
[INFO] [stderr]   30:     0x7f3175019a75 - <<std[e9fabc67614b9e87]::thread::Builder>::spawn_unchecked_<rustc_interface[da89d8f332c7499d]::util::run_in_thread_pool_with_globals<rustc_interface[da89d8f332c7499d]::interface::run_compiler<core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>, rustc_driver_impl[148dc445df396bc5]::run_compiler::{closure#1}>::{closure#0}, core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[189e84d0b90779b2]::result::Result<(), rustc_span[944eb558344b2dca]::ErrorGuaranteed>>::{closure#1} as core[189e84d0b90779b2]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   31:     0x7f317288a305 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h23d96804ac6f3840
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/alloc/src/boxed.rs:1993:9
[INFO] [stderr]   32:     0x7f317288a305 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h4a354978a3c64e8b
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/alloc/src/boxed.rs:1993:9
[INFO] [stderr]   33:     0x7f317288a305 - std::sys::unix::thread::Thread::new::thread_start::h9ffebb291afbfc95
[INFO] [stderr]                                at /rustc/a47f796a36593d352d79ee66d7f4c12d100f5241/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stderr]   34:     0x7f31725bab43 - <unknown>
[INFO] [stderr]   35:     0x7f317264bbb4 - __clone
[INFO] [stderr]   36:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: 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 1.72.0-beta.3 (a47f796a3 2023-07-22) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: --crate-type lib -C embed-bitcode=no
[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] end of query stack
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] running `Command { std: "docker" "inspect" "b41bfdb60dc6da81c9771335f1a04e0912fbc9473e6459b0a1f3ac875c4f488c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b41bfdb60dc6da81c9771335f1a04e0912fbc9473e6459b0a1f3ac875c4f488c", kill_on_drop: false }`
[INFO] [stdout] b41bfdb60dc6da81c9771335f1a04e0912fbc9473e6459b0a1f3ac875c4f488c