[INFO] fetching crate accord 0.2.2...
[INFO] checking accord-0.2.2 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate accord 0.2.2 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate accord 0.2.2 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate accord 0.2.2
[INFO] finished tweaking crates.io crate accord 0.2.2
[INFO] tweaked toml for crates.io crate accord 0.2.2 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding bitflags v0.7.0 (available: v2.6.0)
[INFO] [stderr]       Adding dtoa v0.2.2 (available: v1.0.9)
[INFO] [stderr]       Adding itoa v0.1.1 (available: v1.0.11)
[INFO] [stderr]       Adding log v0.3.9 (available: v0.4.22)
[INFO] [stderr]       Adding num-traits v0.1.43 (available: v0.2.19)
[INFO] [stderr]       Adding quote v0.3.15 (available: v1.0.37)
[INFO] [stderr]       Adding serde v0.8.23 (available: v1.0.210)
[INFO] [stderr]       Adding serde_codegen v0.8.14 (available: v0.8.23)
[INFO] [stderr]       Adding serde_codegen_internals v0.10.0 (available: v0.14.2)
[INFO] [stderr]       Adding serde_json v0.8.6 (available: v1.0.128)
[INFO] [stderr]       Adding syn v0.9.2 (available: v2.0.77)
[INFO] [stderr]       Adding syntex v0.45.1 (available: v0.58.1)
[INFO] [stderr]       Adding syntex_errors v0.45.0 (available: v0.59.1)
[INFO] [stderr]       Adding syntex_pos v0.45.0 (available: v0.59.1)
[INFO] [stderr]       Adding syntex_syntax v0.45.1 (available: v0.59.1)
[INFO] [stderr]       Adding term v0.4.6 (available: v1.0.0)
[INFO] [stderr]       Adding unicode-xid v0.0.3 (available: v0.2.6)
[INFO] [stderr]       Adding winapi v0.2.8 (available: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syntex_pos v0.45.0
[INFO] [stderr]   Downloaded serde_codegen v0.8.14
[INFO] [stderr]   Downloaded syntex_errors v0.45.0
[INFO] [stderr]   Downloaded itoa v0.1.1
[INFO] [stderr]   Downloaded syntex v0.45.1
[INFO] [stderr]   Downloaded serde_json v0.8.6
[INFO] [stderr]   Downloaded dtoa v0.2.2
[INFO] [stderr]   Downloaded serde_codegen_internals v0.10.0
[INFO] [stderr]   Downloaded syntex_syntax v0.45.1
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b556abe1e9adf13caebfddaac75ed03abe8bb60c628e63c497046c607c2f424f
[INFO] running `Command { std: "docker" "start" "-a" "b556abe1e9adf13caebfddaac75ed03abe8bb60c628e63c497046c607c2f424f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b556abe1e9adf13caebfddaac75ed03abe8bb60c628e63c497046c607c2f424f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b556abe1e9adf13caebfddaac75ed03abe8bb60c628e63c497046c607c2f424f", kill_on_drop: false }`
[INFO] [stdout] b556abe1e9adf13caebfddaac75ed03abe8bb60c628e63c497046c607c2f424f
[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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 02ff7e49c561972e4f0b72be9c25d9dd71c9818e69aef1952de6c2775c59eff5
[INFO] running `Command { std: "docker" "start" "-a" "02ff7e49c561972e4f0b72be9c25d9dd71c9818e69aef1952de6c2775c59eff5", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling libc v0.2.159
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling autocfg v1.3.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]    Compiling syntex_pos v0.45.0
[INFO] [stderr]    Compiling syntex_errors v0.45.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling syntex_syntax v0.45.1
[INFO] [stderr]    Compiling syntex v0.45.1
[INFO] [stderr]    Compiling serde_codegen v0.8.14
[INFO] [stderr]    Compiling accord v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `accord v0.2.2 (/opt/rustwide/workdir)`
[INFO] [stderr] note: To improve backtraces for build dependencies, set the CARGO_PROFILE_DEV_BUILD_OVERRIDE_DEBUG=true environment variable to enable debug information generation.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/accord-a43a8746d5744fc8/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread '<unnamed>' panicked at core/src/panicking.rs:221:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5ddc48ccd9aa - std::backtrace_rs::backtrace::libunwind::trace::h97abfd8a85887826
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5ddc48ccd9aa - std::backtrace_rs::backtrace::trace_unsynchronized::h3fe33c3e2ffb6416
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5ddc48ccd9aa - std::sys::backtrace::_print_fmt::hdf29e1ca2ba4cbbc
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5ddc48ccd9aa - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h731c3e1b756ff019
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5ddc48cec42b - core::fmt::rt::Argument::fmt::hdfecaf84742c5a76
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5ddc48cec42b - core::fmt::write::h9c97613a183100ea
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/fmt/mod.rs:1186:21
[INFO] [stderr]      6:     0x5ddc48ccac43 - std::io::Write::write_fmt::h7288d7c7dce2722e
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:1823:15
[INFO] [stderr]      7:     0x5ddc48ccd7f2 - std::sys::backtrace::BacktraceLock::print::h2bc6f048c13121f8
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5ddc48cceab7 - std::panicking::default_hook::{{closure}}::hde92e91975a101c0
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:268:22
[INFO] [stderr]      9:     0x5ddc48cce8e6 - std::panicking::default_hook::hd8d6e2273bfc5edc
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:295:9
[INFO] [stderr]     10:     0x5ddc48ccf0f7 - std::panicking::rust_panic_with_hook::hb332f821833efd3b
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:801:13
[INFO] [stderr]     11:     0x5ddc48ccef63 - std::panicking::begin_panic_handler::{{closure}}::h00065c7fd19dfc55
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:667:13
[INFO] [stderr]     12:     0x5ddc48ccde89 - std::sys::backtrace::__rust_end_short_backtrace::h10e475bd14bb8cb7
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x5ddc48ccec24 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/panicking.rs:665:5
[INFO] [stderr]     14:     0x5ddc48ceb635 - core::panicking::panic_nounwind_fmt::runtime::hfdc0a443a8d89184
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/panicking.rs:112:18
[INFO] [stderr]     15:     0x5ddc48ceb635 - core::panicking::panic_nounwind_fmt::h68ef3ac9eefa1d03
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/panicking.rs:122:5
[INFO] [stderr]     16:     0x5ddc48ceb6c2 - core::panicking::panic_nounwind::h8673f70303a579a8
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/core/src/panicking.rs:221:5
[INFO] [stderr]     17:     0x5ddc48bd371b - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::hf9e6c27b43371c28
[INFO] [stderr]     18:     0x5ddc48bd36e2 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::hd9ba032ef94e6c8c
[INFO] [stderr]     19:     0x5ddc48be89d5 - core::slice::<impl [T]>::get_unchecked::h6b9e0fdb0c386004
[INFO] [stderr]     20:     0x5ddc48a14eb5 - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::h4fa36afd6c08b05a
[INFO] [stderr]     21:     0x5ddc48a483cc - syntex_syntax::fold::fold_attrs::h3678363882ae785f
[INFO] [stderr]     22:     0x5ddc48a7bf93 - syntex_syntax::fold::noop_fold_item_simple::h02f800e9104136a4
[INFO] [stderr]     23:     0x5ddc48bf1c5f - syntex_syntax::fold::Folder::fold_item_simple::h50d58de2d32198e2
[INFO] [stderr]     24:     0x5ddc48a7bdaf - syntex_syntax::fold::noop_fold_item::{{closure}}::hc5960034a1e401da
[INFO] [stderr]     25:     0x5ddc48bdbc88 - syntex_syntax::ptr::P<T>::map::h6f53bf3c06dca2b6
[INFO] [stderr]     26:     0x5ddc48a7bb8b - syntex_syntax::fold::noop_fold_item::h5f60b58e5b2d5725
[INFO] [stderr]     27:     0x5ddc48c06762 - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::{{closure}}::h4ca24f3e67a8c007
[INFO] [stderr]     28:     0x5ddc48be81a4 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::h0f14b249a599f95d
[INFO] [stderr]     29:     0x5ddc48b4342c - <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::next::h3f9434512937ad1d
[INFO] [stderr]     30:     0x5ddc48b7d80c - core::ops::function::FnOnce::call_once::h2f1f951da60998e8
[INFO] [stderr]     31:     0x5ddc48b8b12b - core::iter::adapters::fuse::and_then_or_clear::h15b71705c013c6fe
[INFO] [stderr]     32:     0x5ddc48b7b6ce - <core::iter::adapters::fuse::Fuse<I> as core::iter::adapters::fuse::FuseImpl<I>>::next::h52b202f77bc6efd9
[INFO] [stderr]     33:     0x5ddc48bb7bbe - <core::iter::adapters::flatten::FlattenCompat<I,U> as core::iter::traits::iterator::Iterator>::next::hc314e41da0f437bb
[INFO] [stderr]     34:     0x5ddc48bb63a7 - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::hc78333ef9663dab0
[INFO] [stderr]     35:     0x5ddc48b1335f - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::Extend<T>>::extend::haa32b8bac7ff6831
[INFO] [stderr]     36:     0x5ddc48b1048d - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::FromIterator<T>>::from_iter::h48d837b4431b4c63
[INFO] [stderr]     37:     0x5ddc48bb9bfe - core::iter::traits::iterator::Iterator::collect::h712d67da241c10a3
[INFO] [stderr]     38:     0x5ddc48c066fc - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::hbdeae1761006099d
[INFO] [stderr]     39:     0x5ddc48a7b2b6 - syntex_syntax::fold::noop_fold_crate::h45acb4d79316b5e1
[INFO] [stderr]     40:     0x5ddc48bf1b5f - syntex_syntax::fold::Folder::fold_crate::hdb0db2a87221bd70
[INFO] [stderr]     41:     0x5ddc48c0666c - syntex_syntax::ext::decorator::expand_attributes::h67193d39b9644474
[INFO] [stderr]     42:     0x5ddc48b51973 - syntex_syntax::ext::expand::MacroExpander::expand_crate::h66201431f2fccc59
[INFO] [stderr]     43:     0x5ddc489e2513 - syntex::registry::Registry::expand_crate::h151ff96b0ccfd863
[INFO] [stderr]     44:     0x5ddc4896e5f8 - syntex::registry::Registry::expand::h12df74bf1155e920
[INFO] [stderr]     45:     0x5ddc4896bb8c - serde_codegen::expand::{{closure}}::h0959d157ea50ce6d
[INFO] [stderr]     46:     0x5ddc4896bd36 - std::sys::backtrace::__rust_begin_short_backtrace::heaf2a4a4dfde2cc5
[INFO] [stderr]     47:     0x5ddc4896d055 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h3cb4193956e86658
[INFO] [stderr]     48:     0x5ddc4896b968 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h65d7f3c130cd82d2
[INFO] [stderr]     49:     0x5ddc4896d1d4 - std::panicking::try::do_call::h6b1df17f5ce8affe
[INFO] [stderr]     50:     0x5ddc4896f01b - __rust_try
[INFO] [stderr]     51:     0x5ddc4896cd27 - std::thread::Builder::spawn_unchecked_::{{closure}}::h05733b7ae0ada852
[INFO] [stderr]     52:     0x5ddc4896d2f6 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hf804b1598bf7bdd8
[INFO] [stderr]     53:     0x5ddc48cd163b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hdc874fd9f97cf748
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/boxed.rs:2453:9
[INFO] [stderr]     54:     0x5ddc48cd163b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf6a21b7f4b696c5f
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/alloc/src/boxed.rs:2453:9
[INFO] [stderr]     55:     0x5ddc48cd163b - std::sys::pal::unix::thread::Thread::new::thread_start::h8728a58782f1bd20
[INFO] [stderr]                                  at /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stderr]     56:     0x716b9b834ac3 - <unknown>
[INFO] [stderr]     57:     0x716b9b8c5a04 - clone
[INFO] [stderr]     58:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "02ff7e49c561972e4f0b72be9c25d9dd71c9818e69aef1952de6c2775c59eff5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ff7e49c561972e4f0b72be9c25d9dd71c9818e69aef1952de6c2775c59eff5", kill_on_drop: false }`
[INFO] [stdout] 02ff7e49c561972e4f0b72be9c25d9dd71c9818e69aef1952de6c2775c59eff5