[INFO] fetching crate accord 0.2.2...
[INFO] checking accord-0.2.2 against try#264a7c4a1c917c83d13895a31231f9d93c7b67e1 for pr-132289
[INFO] extracting crate accord 0.2.2 into /workspace/builds/worker-2-tc2/source
[INFO] validating manifest of crates.io crate accord 0.2.2 on toolchain 264a7c4a1c917c83d13895a31231f9d93c7b67e1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "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-2-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 25 packages to latest compatible versions
[INFO] [stderr]       Adding serde v0.8.23 (available: v1.0.214)
[INFO] [stderr]       Adding serde_codegen v0.8.14 (available: v0.8.23)
[INFO] [stderr]       Adding serde_json v0.8.6 (available: v1.0.132)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "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] 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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e4405181f07b49ab30b425ca5207243b492f4bd37e04645ad1258fa526a739f6
[INFO] running `Command { std: "docker" "start" "-a" "e4405181f07b49ab30b425ca5207243b492f4bd37e04645ad1258fa526a739f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4405181f07b49ab30b425ca5207243b492f4bd37e04645ad1258fa526a739f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4405181f07b49ab30b425ca5207243b492f4bd37e04645ad1258fa526a739f6", kill_on_drop: false }`
[INFO] [stdout] e4405181f07b49ab30b425ca5207243b492f4bd37e04645ad1258fa526a739f6
[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=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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+264a7c4a1c917c83d13895a31231f9d93c7b67e1" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dfddd5be1b8a21ef2ffa6111a069abec0b8f18a704e187255488b8b47818ce6a
[INFO] running `Command { std: "docker" "start" "-a" "dfddd5be1b8a21ef2ffa6111a069abec0b8f18a704e187255488b8b47818ce6a", 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 rustc-serialize v0.3.25
[INFO] [stderr]    Compiling log v0.4.22
[INFO] [stderr]    Compiling term v0.4.6
[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]     Checking itoa v0.1.1
[INFO] [stderr]    Compiling libc v0.2.161
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling syntex_pos v0.45.0
[INFO] [stderr]    Compiling syntex_errors v0.45.0
[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-8cc9beabb4fc88f5/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread '<unnamed>' panicked at core/src/panicking.rs:227:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5bcc1790c44a - std::backtrace_rs::backtrace::libunwind::trace::h33a4b5cb14f757d6
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/../../backtrace/src/backtrace/libunwind.rs:116:5
[INFO] [stderr]      1:     0x5bcc1790c44a - std::backtrace_rs::backtrace::trace_unsynchronized::h20236e6e99fbf845
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x5bcc1790c44a - std::sys::backtrace::_print_fmt::h704a42900622727d
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5bcc1790c44a - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h283eae59a9b611a1
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5bcc1792b173 - core::fmt::rt::Argument::fmt::h6c00b32d62994027
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/core/src/fmt/rt.rs:177:76
[INFO] [stderr]      5:     0x5bcc1792b173 - core::fmt::write::h04a7af682e3a5030
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/core/src/fmt/mod.rs:1190:21
[INFO] [stderr]      6:     0x5bcc17909743 - std::io::Write::write_fmt::h787129c86330d3f6
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/io/mod.rs:1839:15
[INFO] [stderr]      7:     0x5bcc1790c292 - std::sys::backtrace::BacktraceLock::print::h0ad674a5464d4d8f
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      8:     0x5bcc1790d25c - std::panicking::default_hook::{{closure}}::habb0c364c1c20b27
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/panicking.rs:268:22
[INFO] [stderr]      9:     0x5bcc1790d0a2 - std::panicking::default_hook::hac494c5ce8f5f3b1
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/panicking.rs:295:9
[INFO] [stderr]     10:     0x5bcc1790d897 - std::panicking::rust_panic_with_hook::h2c87df020c0f53ac
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/panicking.rs:801:13
[INFO] [stderr]     11:     0x5bcc1790d6f6 - std::panicking::begin_panic_handler::{{closure}}::hd3013344bba6ae59
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/panicking.rs:667:13
[INFO] [stderr]     12:     0x5bcc1790c929 - std::sys::backtrace::__rust_end_short_backtrace::haa6c749264ccc436
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/sys/backtrace.rs:170:18
[INFO] [stderr]     13:     0x5bcc1790d3bc - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/panicking.rs:665:5
[INFO] [stderr]     14:     0x5bcc1792a35d - core::panicking::panic_nounwind_fmt::runtime::hffe4d6deaf1e751c
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/core/src/panicking.rs:115:18
[INFO] [stderr]     15:     0x5bcc1792a35d - core::panicking::panic_nounwind_fmt::h57cb6bad45747251
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/core/src/panicking.rs:125:5
[INFO] [stderr]     16:     0x5bcc1792a3f2 - core::panicking::panic_nounwind::h5572b1291449ff75
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/core/src/panicking.rs:227:5
[INFO] [stderr]     17:     0x5bcc177bebdb - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::h322e90a08cfcacc4
[INFO] [stderr]     18:     0x5bcc177be5e2 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::h0e911b575eccbbd7
[INFO] [stderr]     19:     0x5bcc177686b5 - core::slice::<impl [T]>::get_unchecked::h401029ba42893c86
[INFO] [stderr]     20:     0x5bcc17659da5 - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::h65bbb132e1947102
[INFO] [stderr]     21:     0x5bcc17684fdc - syntex_syntax::fold::fold_attrs::h57f369ee7e1f231e
[INFO] [stderr]     22:     0x5bcc176b9556 - syntex_syntax::fold::noop_fold_item_simple::h1c12f6b064288729
[INFO] [stderr]     23:     0x5bcc17771a9f - syntex_syntax::fold::Folder::fold_item_simple::hdcf63c4e564ecdcf
[INFO] [stderr]     24:     0x5bcc176b8edf - syntex_syntax::fold::noop_fold_item::{{closure}}::h3912551df615d8e1
[INFO] [stderr]     25:     0x5bcc177c4948 - syntex_syntax::ptr::P<T>::map::h148bde1215cba711
[INFO] [stderr]     26:     0x5bcc176b8e6b - syntex_syntax::fold::noop_fold_item::he417b3fb48c54929
[INFO] [stderr]     27:     0x5bcc177865b2 - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::{{closure}}::hb4c4642b5c2ab213
[INFO] [stderr]     28:     0x5bcc17768024 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::hc261c18a64afe212
[INFO] [stderr]     29:     0x5bcc177d3d8c - <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::next::h688893e290699104
[INFO] [stderr]     30:     0x5bcc1778d63c - core::ops::function::FnOnce::call_once::haf5b41c2a093da8b
[INFO] [stderr]     31:     0x5bcc1779acdb - core::iter::adapters::fuse::and_then_or_clear::h3c6b10a0ded261c6
[INFO] [stderr]     32:     0x5bcc1778ac4e - <core::iter::adapters::fuse::Fuse<I> as core::iter::adapters::fuse::FuseImpl<I>>::next::hccdcd1619bf64bb3
[INFO] [stderr]     33:     0x5bcc178222fe - <core::iter::adapters::flatten::FlattenCompat<I,U> as core::iter::traits::iterator::Iterator>::next::hc10aef19d4c685fa
[INFO] [stderr]     34:     0x5bcc17820af7 - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::h1a99929cce4c934d
[INFO] [stderr]     35:     0x5bcc177500df - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::Extend<T>>::extend::h2301b2cd942e9b90
[INFO] [stderr]     36:     0x5bcc1774e2ed - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::FromIterator<T>>::from_iter::h418a051c8ca67bd7
[INFO] [stderr]     37:     0x5bcc17824aee - core::iter::traits::iterator::Iterator::collect::h392d5255d74680d8
[INFO] [stderr]     38:     0x5bcc1778654c - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::hb7d3b455af7bc1c8
[INFO] [stderr]     39:     0x5bcc176b8470 - syntex_syntax::fold::noop_fold_crate::hfde80bb6e3cc6daf
[INFO] [stderr]     40:     0x5bcc1777199f - syntex_syntax::fold::Folder::fold_crate::hdd2b301177888f92
[INFO] [stderr]     41:     0x5bcc177864bc - syntex_syntax::ext::decorator::expand_attributes::hd7152d2f85042537
[INFO] [stderr]     42:     0x5bcc177e1813 - syntex_syntax::ext::expand::MacroExpander::expand_crate::hb996d081a2814f49
[INFO] [stderr]     43:     0x5bcc1761dafa - syntex::registry::Registry::expand_crate::h51e9c0afd2a250f2
[INFO] [stderr]     44:     0x5bcc175a922f - syntex::registry::Registry::expand::h7a9c90de33fd2afb
[INFO] [stderr]     45:     0x5bcc175a656c - serde_codegen::expand::{{closure}}::h282c25f978e03f24
[INFO] [stderr]     46:     0x5bcc175a6716 - std::sys::backtrace::__rust_begin_short_backtrace::h12ece24f2ef778bc
[INFO] [stderr]     47:     0x5bcc175a7d45 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hf589dd3c3a549c08
[INFO] [stderr]     48:     0x5bcc175a6338 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h673cec718c7727d0
[INFO] [stderr]     49:     0x5bcc175a7d84 - std::panicking::try::do_call::ha83feea8abacb56a
[INFO] [stderr]     50:     0x5bcc175a9c5b - __rust_try
[INFO] [stderr]     51:     0x5bcc175a78ea - std::thread::Builder::spawn_unchecked_::{{closure}}::hbf0b48f4b4001589
[INFO] [stderr]     52:     0x5bcc175a7e86 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5ced93e473113c34
[INFO] [stderr]     53:     0x5bcc1790fb3b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd2a9c25cdd10850f
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/alloc/src/boxed.rs:2454:9
[INFO] [stderr]     54:     0x5bcc1790fb3b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hf170df3c40ea5e3a
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/alloc/src/boxed.rs:2454:9
[INFO] [stderr]     55:     0x5bcc1790fb3b - std::sys::pal::unix::thread::Thread::new::thread_start::h8fb0341f6c19311a
[INFO] [stderr]                                  at /rustc/264a7c4a1c917c83d13895a31231f9d93c7b67e1/library/std/src/sys/pal/unix/thread.rs:105:17
[INFO] [stderr]     56:     0x75e9b833bac3 - <unknown>
[INFO] [stderr]     57:     0x75e9b83cca04 - clone
[INFO] [stderr]     58:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "dfddd5be1b8a21ef2ffa6111a069abec0b8f18a704e187255488b8b47818ce6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dfddd5be1b8a21ef2ffa6111a069abec0b8f18a704e187255488b8b47818ce6a", kill_on_drop: false }`
[INFO] [stdout] dfddd5be1b8a21ef2ffa6111a069abec0b8f18a704e187255488b8b47818ce6a
