[INFO] cloning repository https://github.com/zcdziura/sixpence
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zcdziura/sixpence" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzcdziura%2Fsixpence", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzcdziura%2Fsixpence'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 34edfbbaa800009deaabcb5d5958d4eba7465f21
[INFO] testing zcdziura/sixpence against try#5a3d3b91048a0adf280e7a4e589c1dda6443f172 for pr-115235
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzcdziura%2Fsixpence" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/zcdziura/sixpence on toolchain 5a3d3b91048a0adf280e7a4e589c1dda6443f172
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/zcdziura/sixpence
[INFO] finished tweaking git repo https://github.com/zcdziura/sixpence
[INFO] tweaked toml for git repo https://github.com/zcdziura/sixpence written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/zcdziura/sixpence 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" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c2cc4f4a9112a446f8927b22f5c6f8021211e98ad7bda16cc4c44b1066a0c7f7
[INFO] running `Command { std: "docker" "start" "-a" "c2cc4f4a9112a446f8927b22f5c6f8021211e98ad7bda16cc4c44b1066a0c7f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c2cc4f4a9112a446f8927b22f5c6f8021211e98ad7bda16cc4c44b1066a0c7f7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2cc4f4a9112a446f8927b22f5c6f8021211e98ad7bda16cc4c44b1066a0c7f7", kill_on_drop: false }`
[INFO] [stdout] c2cc4f4a9112a446f8927b22f5c6f8021211e98ad7bda16cc4c44b1066a0c7f7
[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@sha256:4f8da3c744d2da974e54ce020a79f4ad54313e914ebeaab8fc086f07e8d8b066" "/opt/rustwide/cargo-home/bin/cargo" "+5a3d3b91048a0adf280e7a4e589c1dda6443f172" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ec58bd1dd95f18813298a6dbb98337382d1d92ff9fdd2a0890c3194f1cf32566
[INFO] running `Command { std: "docker" "start" "-a" "ec58bd1dd95f18813298a6dbb98337382d1d92ff9fdd2a0890c3194f1cf32566", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.3
[INFO] [stderr]    Compiling libc v0.2.125
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling syn v1.0.92
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling serde_derive v1.0.137
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling os_str_bytes v6.0.0
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling textwrap v0.15.0
[INFO] [stderr]    Compiling termcolor v1.1.3
[INFO] [stderr]    Compiling unicode-width v0.1.9
[INFO] [stderr]    Compiling strsim v0.10.0
[INFO] [stderr]    Compiling bitflags v1.3.2
[INFO] [stderr]    Compiling clap_lex v0.2.0
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling pad v0.1.6
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling indexmap v1.8.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling getrandom v0.2.6
[INFO] [stderr]    Compiling time v0.1.43
[INFO] [stderr]    Compiling dirs-sys v0.3.7
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling dirs v4.0.0
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.5
[INFO] [stderr]    Compiling regex v1.5.5
[INFO] [stderr] thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/encoder.rs:450:9:
[INFO] [stderr] assertion failed: pos.get() <= self.position()
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f97acb7cefc - std::backtrace_rs::backtrace::libunwind::trace::h1e94f51a70590b24
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/../../backtrace/src/backtrace/libunwind.rs:93:5
[INFO] [stderr]    1:     0x7f97acb7cefc - std::backtrace_rs::backtrace::trace_unsynchronized::ha4b8601070a1cd51
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]    2:     0x7f97acb7cefc - std::sys_common::backtrace::_print_fmt::hbb566ca2fd60b76a
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]    3:     0x7f97acb7cefc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hca47315a43d59c89
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]    4:     0x7f97acbe315c - core::fmt::rt::Argument::fmt::h291f645ad8573757
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/fmt/rt.rs:138:9
[INFO] [stderr]    5:     0x7f97acbe315c - core::fmt::write::h9b76cf5ceec3eda1
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/fmt/mod.rs:1094:21
[INFO] [stderr]    6:     0x7f97acb6fb1e - std::io::Write::write_fmt::hc4ac74baeb81817b
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/io/mod.rs:1714:15
[INFO] [stderr]    7:     0x7f97acb7cce4 - std::sys_common::backtrace::_print::h53287555ce02ffe8
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]    8:     0x7f97acb7cce4 - std::sys_common::backtrace::print::h4ce9b6d019078194
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]    9:     0x7f97acb7fdda - std::panicking::panic_hook_with_disk_dump::{{closure}}::h6345d620bf90f980
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:280:22
[INFO] [stderr]   10:     0x7f97acb7fad5 - std::panicking::panic_hook_with_disk_dump::h881dcb47bef2b023
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:314:9
[INFO] [stderr]   11:     0x7f97aff2bb39 - rustc_driver_impl[507b66162c0f18a9]::install_ice_hook::{closure#0}
[INFO] [stderr]   12:     0x7f97acb80693 - <alloc::boxed::Box<F,A> as core::ops::function::Fn<Args>>::call::hc6a6af3e65f55d16
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/alloc/src/boxed.rs:2021:9
[INFO] [stderr]   13:     0x7f97acb80693 - std::panicking::rust_panic_with_hook::h4685f1313004386b
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:757:13
[INFO] [stderr]   14:     0x7f97acb803c6 - std::panicking::begin_panic_handler::{{closure}}::h540f1f43109c9ae2
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:623:13
[INFO] [stderr]   15:     0x7f97acb7d426 - std::sys_common::backtrace::__rust_end_short_backtrace::h32246c56143d8eeb
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys_common/backtrace.rs:170:18
[INFO] [stderr]   16:     0x7f97acb80152 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/panicking.rs:619:5
[INFO] [stderr]   17:     0x7f97acbdf505 - core::panicking::panic_fmt::h069b828d25155aac
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/panicking.rs:72:14
[INFO] [stderr]   18:     0x7f97acbdf5a3 - core::panicking::panic::h3ad47f261da50cd7
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/core/src/panicking.rs:127:5
[INFO] [stderr]   19:     0x7f97ae6bbf3a - <rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::EncodeContext>::encode_def_ids
[INFO] [stderr]   20:     0x7f97af2ec0d2 - <rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::EncodeContext>::encode_crate_root
[INFO] [stderr]   21:     0x7f97af267bc4 - rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::encode_metadata_impl
[INFO] [stderr]   22:     0x7f97af25e4c4 - <rustc_data_structures[3027d962114108]::sync::parallel::ParallelGuard>::run::<(), rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::encode_metadata::{closure#0}>
[INFO] [stderr]   23:     0x7f97af25e290 - rustc_data_structures[3027d962114108]::sync::parallel::disabled::join::<rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::encode_metadata::{closure#0}, rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::encode_metadata::{closure#1}, (), ()>
[INFO] [stderr]   24:     0x7f97af25df71 - rustc_metadata[e4098dc061e3aa70]::rmeta::encoder::encode_metadata
[INFO] [stderr]   25:     0x7f97af25c5c6 - rustc_metadata[e4098dc061e3aa70]::fs::encode_and_write_metadata
[INFO] [stderr]   26:     0x7f97af248450 - rustc_interface[1756be6ca8724008]::passes::start_codegen
[INFO] [stderr]   27:     0x7f97af242a71 - <rustc_middle[906224014c9b7b9d]::ty::context::GlobalCtxt>::enter::<<rustc_interface[1756be6ca8724008]::queries::Queries>::ongoing_codegen::{closure#0}, core[90d212346a370c68]::result::Result<alloc[b1d217bf3cb741ec]::boxed::Box<dyn core[90d212346a370c68]::any::Any>, rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>
[INFO] [stderr]   28:     0x7f97af241c00 - <rustc_interface[1756be6ca8724008]::interface::Compiler>::enter::<rustc_driver_impl[507b66162c0f18a9]::run_compiler::{closure#1}::{closure#2}, core[90d212346a370c68]::result::Result<core[90d212346a370c68]::option::Option<rustc_interface[1756be6ca8724008]::queries::Linker>, rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>
[INFO] [stderr]   29:     0x7f97af23b107 - rustc_span[99eb23e55edf5fe2]::set_source_map::<core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>, rustc_interface[1756be6ca8724008]::interface::run_compiler<core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>, rustc_driver_impl[507b66162c0f18a9]::run_compiler::{closure#1}>::{closure#0}::{closure#0}>
[INFO] [stderr]   30:     0x7f97af23a524 - rustc_interface[1756be6ca8724008]::interface::run_compiler::<core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>, rustc_driver_impl[507b66162c0f18a9]::run_compiler::{closure#1}>::{closure#0}
[INFO] [stderr]   31:     0x7f97af2394e5 - <scoped_tls[d52798a0a8a58c8d]::ScopedKey<rustc_span[99eb23e55edf5fe2]::SessionGlobals>>::set::<rustc_interface[1756be6ca8724008]::util::run_in_thread_pool_with_globals<rustc_interface[1756be6ca8724008]::interface::run_compiler<core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>, rustc_driver_impl[507b66162c0f18a9]::run_compiler::{closure#1}>::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>
[INFO] [stderr]   32:     0x7f97af238a3d - std[13ff54c881adf828]::sys_common::backtrace::__rust_begin_short_backtrace::<rustc_interface[1756be6ca8724008]::util::run_in_thread_with_globals<rustc_interface[1756be6ca8724008]::util::run_in_thread_pool_with_globals<rustc_interface[1756be6ca8724008]::interface::run_compiler<core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>, rustc_driver_impl[507b66162c0f18a9]::run_compiler::{closure#1}>::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>
[INFO] [stderr]   33:     0x7f97af7696b5 - <<std[13ff54c881adf828]::thread::Builder>::spawn_unchecked_<rustc_interface[1756be6ca8724008]::util::run_in_thread_with_globals<rustc_interface[1756be6ca8724008]::util::run_in_thread_pool_with_globals<rustc_interface[1756be6ca8724008]::interface::run_compiler<core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>, rustc_driver_impl[507b66162c0f18a9]::run_compiler::{closure#1}>::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>::{closure#0}::{closure#0}, core[90d212346a370c68]::result::Result<(), rustc_span[99eb23e55edf5fe2]::ErrorGuaranteed>>::{closure#1} as core[90d212346a370c68]::ops::function::FnOnce<()>>::call_once::{shim:vtable#0}
[INFO] [stderr]   34:     0x7f97acb8b075 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h1a6a2d2ed8a57b6b
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/alloc/src/boxed.rs:2007:9
[INFO] [stderr]   35:     0x7f97acb8b075 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h03ce391955487b79
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/alloc/src/boxed.rs:2007:9
[INFO] [stderr]   36:     0x7f97acb8b075 - std::sys::unix::thread::Thread::new::thread_start::hbba6566cc475cfee
[INFO] [stderr]                                at /rustc/5a3d3b91048a0adf280e7a4e589c1dda6443f172/library/std/src/sys/unix/thread.rs:108:17
[INFO] [stderr]   37:     0x7f97ac8b9b43 - <unknown>
[INFO] [stderr]   38:     0x7f97ac94abb4 - __clone
[INFO] [stderr]   39:                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] warning: the ICE couldn't be written to `/opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/regex-1.5.5/rustc-ice-2023-09-19T08:24:30.664301859Z-462.txt`: Read-only file system (os error 30)
[INFO] [stderr] 
[INFO] [stderr] note: rustc 1.74.0-nightly (5a3d3b910 2023-09-14) running on x86_64-unknown-linux-gnu
[INFO] [stderr] 
[INFO] [stderr] note: compiler flags: --crate-type lib -C embed-bitcode=no -C debuginfo=2
[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 `regex` (lib)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] thread 'rustc' panicked at compiler/rustc_metadata/src/rmeta/encoder.rs:450:9:
[INFO] [stderr] error: could not compile `syn` (lib)
[INFO] running `Command { std: "docker" "inspect" "ec58bd1dd95f18813298a6dbb98337382d1d92ff9fdd2a0890c3194f1cf32566", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ec58bd1dd95f18813298a6dbb98337382d1d92ff9fdd2a0890c3194f1cf32566", kill_on_drop: false }`
[INFO] [stdout] ec58bd1dd95f18813298a6dbb98337382d1d92ff9fdd2a0890c3194f1cf32566