[INFO] fetching crate alexa 0.1.2...
[INFO] checking alexa-0.1.2 against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] extracting crate alexa 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate alexa 0.1.2 on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alexa 0.1.2
[INFO] finished tweaking crates.io crate alexa 0.1.2
[INFO] tweaked toml for crates.io crate alexa 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 68 packages
[INFO] [stderr]       Adding bitflags v0.7.0 (latest: v2.5.0)
[INFO] [stderr]       Adding bodyparser v0.4.1 (latest: v0.8.0)
[INFO] [stderr]       Adding chrono v0.2.25 (latest: v0.4.37)
[INFO] [stderr]       Adding conduit-mime-types v0.7.3 (latest: v0.8.0)
[INFO] [stderr]       Adding cookie v0.2.5 (latest: v0.18.1)
[INFO] [stderr]       Adding dtoa v0.2.2 (latest: v1.0.9)
[INFO] [stderr]       Adding hpack v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding hyper v0.9.18 (latest: v1.2.0)
[INFO] [stderr]       Adding idna v0.1.5 (latest: v0.5.0)
[INFO] [stderr]       Adding iron v0.4.0 (latest: v0.6.1)
[INFO] [stderr]       Adding itoa v0.1.1 (latest: v1.0.11)
[INFO] [stderr]       Adding language-tags v0.2.2 (latest: v0.3.2)
[INFO] [stderr]       Adding lazy_static v0.1.16 (latest: v1.4.0)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding mime v0.2.6 (latest: v0.3.17)
[INFO] [stderr]       Adding num v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding num-traits v0.1.43 (latest: v0.2.18)
[INFO] [stderr]       Adding num_cpus v0.2.13 (latest: v1.16.0)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (latest: v2.3.1)
[INFO] [stderr]       Adding persistent v0.2.1 (latest: v0.4.0)
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.36)
[INFO] [stderr]       Adding serde v0.8.23 (latest: v1.0.197)
[INFO] [stderr]       Adding serde_codegen v0.8.14 (latest: v0.9.0)
[INFO] [stderr]       Adding serde_codegen_internals v0.10.0 (latest: v0.14.2)
[INFO] [stderr]       Adding serde_json v0.8.6 (latest: v1.0.115)
[INFO] [stderr]       Adding syn v0.9.2 (latest: v2.0.58)
[INFO] [stderr]       Adding syntex v0.45.1 (latest: v0.58.1)
[INFO] [stderr]       Adding syntex_errors v0.45.0 (latest: v0.59.1)
[INFO] [stderr]       Adding syntex_pos v0.45.0 (latest: v0.59.1)
[INFO] [stderr]       Adding syntex_syntax v0.45.1 (latest: v0.59.1)
[INFO] [stderr]       Adding term v0.4.6 (latest: v0.7.0)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.35)
[INFO] [stderr]       Adding traitobject v0.0.1 (latest: v0.1.0)
[INFO] [stderr]       Adding unicase v1.4.2 (latest: v2.7.0)
[INFO] [stderr]       Adding unicode-xid v0.0.3 (latest: v0.2.4)
[INFO] [stderr]       Adding url v1.7.2 (latest: v2.5.0)
[INFO] [stderr]       Adding version_check v0.1.5 (latest: v0.9.4)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v0.8.23
[INFO] [stderr]   Downloaded version_check v0.1.5
[INFO] [stderr]   Downloaded dtoa v0.2.2
[INFO] [stderr]   Downloaded itoa v0.1.1
[INFO] [stderr]   Downloaded num-traits v0.1.43
[INFO] [stderr]   Downloaded serde_json v0.8.6
[INFO] [stderr]   Downloaded modifier v0.1.0
[INFO] [stderr]   Downloaded unicase v1.4.2
[INFO] [stderr]   Downloaded num_cpus v0.2.13
[INFO] [stderr]   Downloaded mime v0.2.6
[INFO] [stderr]   Downloaded typeable v0.1.2
[INFO] [stderr]   Downloaded traitobject v0.1.0
[INFO] [stderr]   Downloaded unsafe-any v0.4.2
[INFO] [stderr]   Downloaded plugin v0.2.6
[INFO] [stderr]   Downloaded percent-encoding v1.0.1
[INFO] [stderr]   Downloaded num-iter v0.1.44
[INFO] [stderr]   Downloaded quote v0.3.15
[INFO] [stderr]   Downloaded wasi v0.10.0+wasi-snapshot-preview1
[INFO] [stderr]   Downloaded rustc-serialize v0.3.25
[INFO] [stderr]   Downloaded url v1.7.2
[INFO] [stderr]   Downloaded chrono v0.2.25
[INFO] [stderr]   Downloaded idna v0.1.5
[INFO] [stderr]   Downloaded time v0.1.45
[INFO] [stderr]   Downloaded lazy_static v0.1.16
[INFO] [stderr]   Downloaded term v0.4.6
[INFO] [stderr]   Downloaded bitflags v0.7.0
[INFO] [stderr]   Downloaded num v0.1.42
[INFO] [stderr]   Downloaded language-tags v0.2.2
[INFO] [stderr]   Downloaded log v0.3.9
[INFO] [stderr]   Downloaded typemap v0.3.3
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[INFO] [stderr]   Downloaded error v0.1.9
[INFO] [stderr]   Downloaded traitobject v0.0.1
[INFO] [stderr]   Downloaded iron v0.4.0
[INFO] [stderr]   Downloaded hpack v0.2.0
[INFO] [stderr]   Downloaded bodyparser v0.4.1
[INFO] [stderr]   Downloaded serde_codegen_internals v0.10.0
[INFO] [stderr]   Downloaded syntex_syntax v0.45.1
[INFO] [stderr]   Downloaded syntex v0.45.1
[INFO] [stderr]   Downloaded persistent v0.2.1
[INFO] [stderr]   Downloaded conduit-mime-types v0.7.3
[INFO] [stderr]   Downloaded hyper v0.9.18
[INFO] [stderr]   Downloaded serde_codegen v0.8.14
[INFO] [stderr]   Downloaded solicit v0.4.4
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[INFO] [stderr]   Downloaded cookie v0.2.5
[INFO] [stderr]   Downloaded syn v0.9.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2d3906944aa1e8ec7d577aa734b0de50e3f1161d95250de52c3184d8c7532b6
[INFO] running `Command { std: "docker" "start" "-a" "f2d3906944aa1e8ec7d577aa734b0de50e3f1161d95250de52c3184d8c7532b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2d3906944aa1e8ec7d577aa734b0de50e3f1161d95250de52c3184d8c7532b6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2d3906944aa1e8ec7d577aa734b0de50e3f1161d95250de52c3184d8c7532b6", kill_on_drop: false }`
[INFO] [stdout] f2d3906944aa1e8ec7d577aa734b0de50e3f1161d95250de52c3184d8c7532b6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5fe750381b3982aec6a455109169d866e54bb95222585c64abd29af2ba31e376
[INFO] running `Command { std: "docker" "start" "-a" "5fe750381b3982aec6a455109169d866e54bb95222585c64abd29af2ba31e376", kill_on_drop: false }`
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]    Compiling syntex_pos v0.45.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling syntex_errors v0.45.0
[INFO] [stderr]    Compiling syntex_syntax v0.45.1
[INFO] [stderr]     Checking iron v0.4.0
[INFO] [stderr]     Checking persistent v0.2.1
[INFO] [stderr]     Checking bodyparser v0.4.1
[INFO] [stderr]    Compiling syntex v0.45.1
[INFO] [stderr]    Compiling serde_codegen v0.8.14
[INFO] [stderr]    Compiling alexa v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `alexa v0.1.2 (/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/alexa-9527e848c20c037b/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread '<unnamed>' panicked at library/core/src/panicking.rs:215:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55dd9ac6f6f5 - std::backtrace_rs::backtrace::libunwind::trace::hc0846b9d5d734da3
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x55dd9ac6f6f5 - std::backtrace_rs::backtrace::trace_unsynchronized::haaeb5c07fc5f1c16
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55dd9ac6f6f5 - std::sys_common::backtrace::_print_fmt::hf422d8687c118c78
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55dd9ac6f6f5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h826b8e7caae31c92
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55dd9ac8eaeb - core::fmt::rt::Argument::fmt::ha5794cc754ea58dc
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55dd9ac8eaeb - core::fmt::write::h90bf88fced7d7a85
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/fmt/mod.rs:1153:17
[INFO] [stderr]      6:     0x55dd9ac6d54f - std::io::Write::write_fmt::h0542e06a2975a65e
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/io/mod.rs:1850:15
[INFO] [stderr]      7:     0x55dd9ac6f4ce - std::sys_common::backtrace::_print::h6c5d0ea7000c081f
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55dd9ac6f4ce - std::sys_common::backtrace::print::h8cc61d3d9cfe4b43
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55dd9ac70909 - std::panicking::default_hook::{{closure}}::ha840b187609a73dc
[INFO] [stderr]     10:     0x55dd9ac70625 - std::panicking::default_hook::h64931701a8dfbeb5
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:291:9
[INFO] [stderr]     11:     0x55dd9ac70da4 - std::panicking::rust_panic_with_hook::h0fc054ea3f5b1656
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:788:13
[INFO] [stderr]     12:     0x55dd9ac70c4d - std::panicking::begin_panic_handler::{{closure}}::hd39fcf318858b44e
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:649:13
[INFO] [stderr]     13:     0x55dd9ac6fbb9 - std::sys_common::backtrace::__rust_end_short_backtrace::h41bac59379df1622
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55dd9ac709b7 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55dd9a8d80c3 - core::panicking::panic_nounwind_fmt::runtime::h17be5627ded62aec
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/panicking.rs:110:18
[INFO] [stderr]     16:     0x55dd9a8d80c3 - core::panicking::panic_nounwind_fmt::h8a2d3e247a16cafd
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/panicking.rs:120:5
[INFO] [stderr]     17:     0x55dd9a8d8155 - core::panicking::panic_nounwind::he15414b6ab578503
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/core/src/panicking.rs:215:5
[INFO] [stderr]     18:     0x55dd9aaa180b - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::h2a427476a1d40a77
[INFO] [stderr]     19:     0x55dd9aaa16a4 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::he667fbe38778df24
[INFO] [stderr]     20:     0x55dd9ab7ece5 - core::slice::<impl [T]>::get_unchecked::h7267aa0b8cd5ccd0
[INFO] [stderr]     21:     0x55dd9a981f55 - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::h36830529e5bc7fb6
[INFO] [stderr]     22:     0x55dd9a9d5ee5 - syntex_syntax::fold::fold_attrs::h6ebc0160c7c24a9e
[INFO] [stderr]     23:     0x55dd9aa0ba23 - syntex_syntax::fold::noop_fold_item_simple::h9ac4582c67378be6
[INFO] [stderr]     24:     0x55dd9ab8cdef - syntex_syntax::fold::Folder::fold_item_simple::hd0415fa376babda7
[INFO] [stderr]     25:     0x55dd9aa0abdf - syntex_syntax::fold::noop_fold_item::{{closure}}::h33d4f2d9b21b4d39
[INFO] [stderr]     26:     0x55dd9ab49028 - syntex_syntax::ptr::P<T>::map::h5f96b7f3e126889a
[INFO] [stderr]     27:     0x55dd9aa0aa63 - syntex_syntax::fold::noop_fold_item::h1aacde164bb8189e
[INFO] [stderr]     28:     0x55dd9ab9ce32 - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::{{closure}}::hd1333584f12de8b3
[INFO] [stderr]     29:     0x55dd9ab7e184 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::h62b4d9cc014a529a
[INFO] [stderr]     30:     0x55dd9aaf55f0 - <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::next::hf69fb27676f2d133
[INFO] [stderr]     31:     0x55dd9ab2bc1c - core::ops::function::FnOnce::call_once::h4ade061fa4df218d
[INFO] [stderr]     32:     0x55dd9aafe554 - core::iter::adapters::fuse::and_then_or_clear::h50b2c89e0138cd62
[INFO] [stderr]     33:     0x55dd9aafba5e - <core::iter::adapters::fuse::Fuse<I> as core::iter::adapters::fuse::FuseImpl<I>>::next::hdaff910a3a4afa56
[INFO] [stderr]     34:     0x55dd9ab14d5e - <core::iter::adapters::flatten::FlattenCompat<I,U> as core::iter::traits::iterator::Iterator>::next::h27339ecbacf12595
[INFO] [stderr]     35:     0x55dd9ab14557 - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::heedc4edf35ced60d
[INFO] [stderr]     36:     0x55dd9aac7e8f - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::Extend<T>>::extend::h1eb3e877c7a9414c
[INFO] [stderr]     37:     0x55dd9aac69cd - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::FromIterator<T>>::from_iter::ha648a69959e750cb
[INFO] [stderr]     38:     0x55dd9ab195ae - core::iter::traits::iterator::Iterator::collect::h768e5c2ae8079563
[INFO] [stderr]     39:     0x55dd9ab9cdce - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::h5b750b2cb8a767c8
[INFO] [stderr]     40:     0x55dd9aa0a1d6 - syntex_syntax::fold::noop_fold_crate::h60406080039a3861
[INFO] [stderr]     41:     0x55dd9ab8cc1f - syntex_syntax::fold::Folder::fold_crate::h97a6a6e596508f0b
[INFO] [stderr]     42:     0x55dd9ab9cd2c - syntex_syntax::ext::decorator::expand_attributes::hd5bd111cd3228785
[INFO] [stderr]     43:     0x55dd9aacfada - syntex_syntax::ext::expand::MacroExpander::expand_crate::h3efdbda500603daf
[INFO] [stderr]     44:     0x55dd9a951873 - syntex::registry::Registry::expand_crate::hd049a06f161a9519
[INFO] [stderr]     45:     0x55dd9a8db628 - syntex::registry::Registry::expand::h0557cbc846c03bc7
[INFO] [stderr]     46:     0x55dd9a8d8c6e - serde_codegen::expand::{{closure}}::ha1dd19b39585fff2
[INFO] [stderr]     47:     0x55dd9a8d8ce6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h9fe451178bf61424
[INFO] [stderr]     48:     0x55dd9a8da0c5 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h99f7cea38daf945f
[INFO] [stderr]     49:     0x55dd9a8d8a38 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb7108ec1818abf36
[INFO] [stderr]     50:     0x55dd9a8da214 - std::panicking::try::do_call::h2ee372b2e48e6179
[INFO] [stderr]     51:     0x55dd9a8dc1fb - __rust_try
[INFO] [stderr]     52:     0x55dd9a8da118 - std::panicking::try::h1be5247cf9da0c2d
[INFO] [stderr]     53:     0x55dd9a8d9f40 - std::thread::Builder::spawn_unchecked_::{{closure}}::h494411cc81033026
[INFO] [stderr]     54:     0x55dd9a8da376 - core::ops::function::FnOnce::call_once{{vtable.shim}}::hdbaf619fe4b304ee
[INFO] [stderr]     55:     0x55dd9ac7339b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h252306ef2fe748f7
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/alloc/src/boxed.rs:2018:9
[INFO] [stderr]     56:     0x55dd9ac7339b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hd1fa1c28a5062a0a
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/alloc/src/boxed.rs:2018:9
[INFO] [stderr]     57:     0x55dd9ac7339b - std::sys::pal::unix::thread::Thread::new::thread_start::hea1af2ba6088572a
[INFO] [stderr]                                  at /rustc/b3bd7058c139e71bae0862ef8f8ac936208873e9/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]     58:     0x7ff1e491dac3 - <unknown>
[INFO] [stderr]     59:     0x7ff1e49aebf4 - __clone
[INFO] [stderr]     60:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "5fe750381b3982aec6a455109169d866e54bb95222585c64abd29af2ba31e376", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5fe750381b3982aec6a455109169d866e54bb95222585c64abd29af2ba31e376", kill_on_drop: false }`
[INFO] [stdout] 5fe750381b3982aec6a455109169d866e54bb95222585c64abd29af2ba31e376
[INFO] checking alexa-0.1.2 against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] extracting crate alexa 0.1.2 into /workspace/builds/worker-6-tc2/source
[INFO] validating manifest of crates.io crate alexa 0.1.2 on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate alexa 0.1.2
[INFO] finished tweaking crates.io crate alexa 0.1.2
[INFO] tweaked toml for crates.io crate alexa 0.1.2 written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 68 packages
[INFO] [stderr]       Adding bitflags v0.7.0 (latest: v2.5.0)
[INFO] [stderr]       Adding bodyparser v0.4.1 (latest: v0.8.0)
[INFO] [stderr]       Adding chrono v0.2.25 (latest: v0.4.37)
[INFO] [stderr]       Adding conduit-mime-types v0.7.3 (latest: v0.8.0)
[INFO] [stderr]       Adding cookie v0.2.5 (latest: v0.18.1)
[INFO] [stderr]       Adding dtoa v0.2.2 (latest: v1.0.9)
[INFO] [stderr]       Adding hpack v0.2.0 (latest: v0.3.0)
[INFO] [stderr]       Adding hyper v0.9.18 (latest: v1.2.0)
[INFO] [stderr]       Adding idna v0.1.5 (latest: v0.5.0)
[INFO] [stderr]       Adding iron v0.4.0 (latest: v0.6.1)
[INFO] [stderr]       Adding itoa v0.1.1 (latest: v1.0.11)
[INFO] [stderr]       Adding language-tags v0.2.2 (latest: v0.3.2)
[INFO] [stderr]       Adding lazy_static v0.1.16 (latest: v1.4.0)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding mime v0.2.6 (latest: v0.3.17)
[INFO] [stderr]       Adding num v0.1.42 (latest: v0.4.1)
[INFO] [stderr]       Adding num-traits v0.1.43 (latest: v0.2.18)
[INFO] [stderr]       Adding num_cpus v0.2.13 (latest: v1.16.0)
[INFO] [stderr]       Adding percent-encoding v1.0.1 (latest: v2.3.1)
[INFO] [stderr]       Adding persistent v0.2.1 (latest: v0.4.0)
[INFO] [stderr]       Adding quote v0.3.15 (latest: v1.0.36)
[INFO] [stderr]       Adding serde v0.8.23 (latest: v1.0.197)
[INFO] [stderr]       Adding serde_codegen v0.8.14 (latest: v0.9.0)
[INFO] [stderr]       Adding serde_codegen_internals v0.10.0 (latest: v0.14.2)
[INFO] [stderr]       Adding serde_json v0.8.6 (latest: v1.0.115)
[INFO] [stderr]       Adding syn v0.9.2 (latest: v2.0.58)
[INFO] [stderr]       Adding syntex v0.45.1 (latest: v0.58.1)
[INFO] [stderr]       Adding syntex_errors v0.45.0 (latest: v0.59.1)
[INFO] [stderr]       Adding syntex_pos v0.45.0 (latest: v0.59.1)
[INFO] [stderr]       Adding syntex_syntax v0.45.1 (latest: v0.59.1)
[INFO] [stderr]       Adding term v0.4.6 (latest: v0.7.0)
[INFO] [stderr]       Adding time v0.1.45 (latest: v0.3.35)
[INFO] [stderr]       Adding traitobject v0.0.1 (latest: v0.1.0)
[INFO] [stderr]       Adding unicase v1.4.2 (latest: v2.7.0)
[INFO] [stderr]       Adding unicode-xid v0.0.3 (latest: v0.2.4)
[INFO] [stderr]       Adding url v1.7.2 (latest: v2.5.0)
[INFO] [stderr]       Adding version_check v0.1.5 (latest: v0.9.4)
[INFO] [stderr]       Adding wasi v0.10.0+wasi-snapshot-preview1 (latest: v0.13.0+wasi-0.2.0)
[INFO] [stderr]       Adding winapi v0.2.8 (latest: v0.3.9)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 03c502913ace90ce5c65c9fae4fa5bba50a27b88edcffab9b50d67c4b1a68c63
[INFO] running `Command { std: "docker" "start" "-a" "03c502913ace90ce5c65c9fae4fa5bba50a27b88edcffab9b50d67c4b1a68c63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "03c502913ace90ce5c65c9fae4fa5bba50a27b88edcffab9b50d67c4b1a68c63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03c502913ace90ce5c65c9fae4fa5bba50a27b88edcffab9b50d67c4b1a68c63", kill_on_drop: false }`
[INFO] [stdout] 03c502913ace90ce5c65c9fae4fa5bba50a27b88edcffab9b50d67c4b1a68c63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f24586b563280bf27b65a64a54995ff9b08559d3d7ce9ec5cfae6f02b543a273
[INFO] running `Command { std: "docker" "start" "-a" "f24586b563280bf27b65a64a54995ff9b08559d3d7ce9ec5cfae6f02b543a273", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]     Checking log v0.4.21
[INFO] [stderr]     Checking matches v0.1.10
[INFO] [stderr]     Checking traitobject v0.1.0
[INFO] [stderr]     Checking unicode-bidi v0.3.15
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]    Compiling num-traits v0.2.18
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling httparse v1.8.0
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]     Checking typeable v0.1.2
[INFO] [stderr]     Checking unicode-normalization v0.1.23
[INFO] [stderr]     Checking time v0.1.45
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]     Checking unsafe-any v0.4.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking traitobject v0.0.1
[INFO] [stderr]     Checking typemap v0.3.3
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]     Checking error v0.1.9
[INFO] [stderr]     Checking plugin v0.2.6
[INFO] [stderr]     Checking num_cpus v0.2.13
[INFO] [stderr]     Checking modifier v0.1.0
[INFO] [stderr]     Checking hpack v0.2.0
[INFO] [stderr]     Checking mime v0.2.6
[INFO] [stderr]    Compiling syn v0.9.2
[INFO] [stderr]     Checking lazy_static v0.1.16
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling unicase v1.4.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking solicit v0.4.4
[INFO] [stderr]     Checking idna v0.1.5
[INFO] [stderr]     Checking url v1.7.2
[INFO] [stderr]    Compiling serde_codegen_internals v0.10.0
[INFO] [stderr]     Checking cookie v0.2.5
[INFO] [stderr]     Checking conduit-mime-types v0.7.3
[INFO] [stderr]     Checking num-integer v0.1.46
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking hyper v0.9.18
[INFO] [stderr]    Compiling syntex_pos v0.45.0
[INFO] [stderr]     Checking num-iter v0.1.44
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling syntex_errors v0.45.0
[INFO] [stderr]    Compiling syntex_syntax v0.45.1
[INFO] [stderr]     Checking iron v0.4.0
[INFO] [stderr]     Checking persistent v0.2.1
[INFO] [stderr]     Checking bodyparser v0.4.1
[INFO] [stderr]    Compiling syntex v0.45.1
[INFO] [stderr]    Compiling serde_codegen v0.8.14
[INFO] [stderr]    Compiling alexa v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `alexa v0.1.2 (/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/alexa-9527e848c20c037b/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread '<unnamed>' panicked at library/core/src/panicking.rs:215:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55cc34595365 - std::backtrace_rs::backtrace::libunwind::trace::hf3db8a8b40c24f7d
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x55cc34595365 - std::backtrace_rs::backtrace::trace_unsynchronized::hc235afb01e65858b
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55cc34595365 - std::sys_common::backtrace::_print_fmt::h3d22b03c95159582
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55cc34595365 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hda8229ae97fa6e6e
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55cc345b475b - core::fmt::rt::Argument::fmt::hd364ed8041485813
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55cc345b475b - core::fmt::write::h5f860456c85c48e6
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/fmt/mod.rs:1153:17
[INFO] [stderr]      6:     0x55cc345931bf - std::io::Write::write_fmt::h9739ecb5be58d920
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/io/mod.rs:1850:15
[INFO] [stderr]      7:     0x55cc3459513e - std::sys_common::backtrace::_print::hccefc98514458b82
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55cc3459513e - std::sys_common::backtrace::print::h8665330714bbc830
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55cc34596579 - std::panicking::default_hook::{{closure}}::h861ab60f9faa0af8
[INFO] [stderr]     10:     0x55cc34596295 - std::panicking::default_hook::h246a08137a9bf8ad
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:291:9
[INFO] [stderr]     11:     0x55cc34596a14 - std::panicking::rust_panic_with_hook::hf3201bc4e87dcc95
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:788:13
[INFO] [stderr]     12:     0x55cc345968bd - std::panicking::begin_panic_handler::{{closure}}::hb553d0042661e592
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:649:13
[INFO] [stderr]     13:     0x55cc34595829 - std::sys_common::backtrace::__rust_end_short_backtrace::h803c216fab262e21
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55cc34596627 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55cc341fd0c3 - core::panicking::panic_nounwind_fmt::runtime::hf233096ec30d8fed
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/panicking.rs:110:18
[INFO] [stderr]     16:     0x55cc341fd0c3 - core::panicking::panic_nounwind_fmt::h0bd40c4a0885989a
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/panicking.rs:120:5
[INFO] [stderr]     17:     0x55cc341fd155 - core::panicking::panic_nounwind::h636db8ed830dc899
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/core/src/panicking.rs:215:5
[INFO] [stderr]     18:     0x55cc343c695b - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::hdccbaa7d3be7c57e
[INFO] [stderr]     19:     0x55cc343c67f4 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::hef60dc4ec40d863f
[INFO] [stderr]     20:     0x55cc344a3c45 - core::slice::<impl [T]>::get_unchecked::hdc96b27037c1b989
[INFO] [stderr]     21:     0x55cc342c8265 - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::haa91b2f39340613c
[INFO] [stderr]     22:     0x55cc342faee5 - syntex_syntax::fold::fold_attrs::hd488b967036c9efa
[INFO] [stderr]     23:     0x55cc34330a23 - syntex_syntax::fold::noop_fold_item_simple::he01232231432ec66
[INFO] [stderr]     24:     0x55cc344b1dbf - syntex_syntax::fold::Folder::fold_item_simple::h6cca6549b0dde5a3
[INFO] [stderr]     25:     0x55cc3432fbdf - syntex_syntax::fold::noop_fold_item::{{closure}}::h55bc4be993b51767
[INFO] [stderr]     26:     0x55cc3446a908 - syntex_syntax::ptr::P<T>::map::h0d188ba046a1aa42
[INFO] [stderr]     27:     0x55cc3432fb53 - syntex_syntax::fold::noop_fold_item::h6b5535b03f9ca351
[INFO] [stderr]     28:     0x55cc344c1e32 - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::{{closure}}::h5b43c61230d20711
[INFO] [stderr]     29:     0x55cc344a3114 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &mut F>::call_once::hc003e0f3e93a6e9c
[INFO] [stderr]     30:     0x55cc344192d0 - <core::iter::adapters::map::Map<I,F> as core::iter::traits::iterator::Iterator>::next::h5c556ed71aca767a
[INFO] [stderr]     31:     0x55cc34450fec - core::ops::function::FnOnce::call_once::h8f4a43ee9db23cde
[INFO] [stderr]     32:     0x55cc34423b84 - core::iter::adapters::fuse::and_then_or_clear::hcca303f41c94983e
[INFO] [stderr]     33:     0x55cc3442047e - <core::iter::adapters::fuse::Fuse<I> as core::iter::adapters::fuse::FuseImpl<I>>::next::h87d1d5eacb1665f8
[INFO] [stderr]     34:     0x55cc3443997e - <core::iter::adapters::flatten::FlattenCompat<I,U> as core::iter::traits::iterator::Iterator>::next::h05a5c41aee0f2887
[INFO] [stderr]     35:     0x55cc344391d7 - <core::iter::adapters::flatten::FlatMap<I,U,F> as core::iter::traits::iterator::Iterator>::next::h5295c2c2372e7256
[INFO] [stderr]     36:     0x55cc343ee39f - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::Extend<T>>::extend::he141eaaa723c2c78
[INFO] [stderr]     37:     0x55cc343eb5dd - <syntex_syntax::util::small_vector::SmallVector<T> as core::iter::traits::collect::FromIterator<T>>::from_iter::h7f630786f22e2f9c
[INFO] [stderr]     38:     0x55cc3443e41e - core::iter::traits::iterator::Iterator::collect::hb02bd64b6a1bb5fa
[INFO] [stderr]     39:     0x55cc344c1dce - <syntex_syntax::ext::decorator::MacroExpander as syntex_syntax::fold::Folder>::fold_item::h88b831f6b95813dd
[INFO] [stderr]     40:     0x55cc3432f1d6 - syntex_syntax::fold::noop_fold_crate::h71e1c21a2f52b995
[INFO] [stderr]     41:     0x55cc344b1c1f - syntex_syntax::fold::Folder::fold_crate::ha0ea90ea77cf1ad1
[INFO] [stderr]     42:     0x55cc344c1d2c - syntex_syntax::ext::decorator::expand_attributes::h351a0c27a237d296
[INFO] [stderr]     43:     0x55cc343f4bca - syntex_syntax::ext::expand::MacroExpander::expand_crate::ha7c003e7342d8dd9
[INFO] [stderr]     44:     0x55cc34276873 - syntex::registry::Registry::expand_crate::h10afffa767881bdf
[INFO] [stderr]     45:     0x55cc34200628 - syntex::registry::Registry::expand::h8e4026e3027f9ef7
[INFO] [stderr]     46:     0x55cc341fdc6e - serde_codegen::expand::{{closure}}::h1e579f73501bcdbc
[INFO] [stderr]     47:     0x55cc341fdcd6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h6d2e50eb354044fc
[INFO] [stderr]     48:     0x55cc341ff0c5 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::ha211dc832e6ee3e1
[INFO] [stderr]     49:     0x55cc341fda38 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h1cb072391003ba5b
[INFO] [stderr]     50:     0x55cc341ff204 - std::panicking::try::do_call::h19061228f5de2294
[INFO] [stderr]     51:     0x55cc342011fb - __rust_try
[INFO] [stderr]     52:     0x55cc341ff118 - std::panicking::try::h5ee2658df6f182ee
[INFO] [stderr]     53:     0x55cc341fef40 - std::thread::Builder::spawn_unchecked_::{{closure}}::h8d183d96883ff052
[INFO] [stderr]     54:     0x55cc341ff366 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h5f93d1ba82f47d26
[INFO] [stderr]     55:     0x55cc3459900b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h375a808689b0aa9c
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/alloc/src/boxed.rs:2018:9
[INFO] [stderr]     56:     0x55cc3459900b - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hde437034773c3aed
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/alloc/src/boxed.rs:2018:9
[INFO] [stderr]     57:     0x55cc3459900b - std::sys::pal::unix::thread::Thread::new::thread_start::h14fef2ff11e20e4f
[INFO] [stderr]                                  at /rustc/57fe1b734d9ff1c8a92bda60b85506b9648158d3/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]     58:     0x7fb070857ac3 - <unknown>
[INFO] [stderr]     59:     0x7fb0708e8bf4 - __clone
[INFO] [stderr]     60:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "f24586b563280bf27b65a64a54995ff9b08559d3d7ce9ec5cfae6f02b543a273", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f24586b563280bf27b65a64a54995ff9b08559d3d7ce9ec5cfae6f02b543a273", kill_on_drop: false }`
[INFO] [stdout] f24586b563280bf27b65a64a54995ff9b08559d3d7ce9ec5cfae6f02b543a273
