[INFO] fetching crate libflo_module 0.1.2...
[INFO] checking libflo_module-0.1.2 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate libflo_module 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate libflo_module 0.1.2 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libflo_module 0.1.2
[INFO] finished tweaking crates.io crate libflo_module 0.1.2
[INFO] tweaked toml for crates.io crate libflo_module 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syntex_pos v0.44.0
[INFO] [stderr]   Downloaded serde_codegen v0.8.9
[INFO] [stderr]   Downloaded syntex v0.44.0
[INFO] [stderr]   Downloaded syntex_errors v0.44.0
[INFO] [stderr]   Downloaded quasi_macros v0.20.0
[INFO] [stderr]   Downloaded serde_codegen_internals v0.8.9
[INFO] [stderr]   Downloaded serde_macros v0.8.9
[INFO] [stderr]   Downloaded quasi v0.20.1
[INFO] [stderr]   Downloaded quasi_codegen v0.20.0
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded aster v0.27.0
[INFO] [stderr]   Downloaded syntex_syntax v0.44.1
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dd464aae8bb2f8684f07a9d802c835dc984a6ffb281e81f23516b564eb277618
[INFO] running `Command { std: "docker" "start" "-a" "dd464aae8bb2f8684f07a9d802c835dc984a6ffb281e81f23516b564eb277618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dd464aae8bb2f8684f07a9d802c835dc984a6ffb281e81f23516b564eb277618", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd464aae8bb2f8684f07a9d802c835dc984a6ffb281e81f23516b564eb277618", kill_on_drop: false }`
[INFO] [stdout] dd464aae8bb2f8684f07a9d802c835dc984a6ffb281e81f23516b564eb277618
[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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ea9a814be10a2595705021eb6c795d103b2ffd815160449155226b28546868af
[INFO] running `Command { std: "docker" "start" "-a" "ea9a814be10a2595705021eb6c795d103b2ffd815160449155226b28546868af", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.153
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]     Checking adler v1.0.2
[INFO] [stderr]     Checking gimli v0.28.1
[INFO] [stderr]     Checking memchr v2.7.2
[INFO] [stderr]     Checking rustc-demangle v0.1.23
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling backtrace v0.3.71
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking object v0.32.2
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]    Compiling syntex_pos v0.44.0
[INFO] [stderr]    Compiling syntex_errors v0.44.0
[INFO] [stderr]    Compiling syntex_syntax v0.44.1
[INFO] [stderr]     Checking addr2line v0.21.0
[INFO] [stderr]     Checking error-chain v0.7.2
[INFO] [stderr]    Compiling aster v0.27.0
[INFO] [stderr]    Compiling syntex v0.44.0
[INFO] [stderr]    Compiling serde_codegen_internals v0.8.9
[INFO] [stderr]    Compiling quasi v0.20.1
[INFO] [stderr]    Compiling quasi_codegen v0.20.0
[INFO] [stderr]    Compiling serde_codegen v0.8.9
[INFO] [stderr] error: failed to run custom build command for `serde_codegen v0.8.9`
[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/serde_codegen-dc34d87b46632d92/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread '<unnamed>' panicked at library/core/src/panicking.rs:156:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x56199a8dd5c2 - std::backtrace_rs::backtrace::libunwind::trace::hd67e08e71d64f12a
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x56199a8dd5c2 - std::backtrace_rs::backtrace::trace_unsynchronized::h1b6e03ae921b7ccc
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x56199a8dd5c2 - std::sys_common::backtrace::_print_fmt::h104284235ec6c37d
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x56199a8dd5c2 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h9ec11fc9f8e1e9e3
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x56199a8fd8ec - core::fmt::rt::Argument::fmt::hba6bb69d73dbc69a
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x56199a8fd8ec - core::fmt::write::h1591db653c658e71
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/fmt/mod.rs:1153:17
[INFO] [stderr]      6:     0x56199a8db47f - std::io::Write::write_fmt::hfbffa468e7623aef
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/io/mod.rs:1843:15
[INFO] [stderr]      7:     0x56199a8dd394 - std::sys_common::backtrace::_print::h00abfdf27a732373
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x56199a8dd394 - std::sys_common::backtrace::print::ha9520edf621a95dc
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x56199a8de9bb - std::panicking::default_hook::{{closure}}::h46e508c07ecf0cb0
[INFO] [stderr]     10:     0x56199a8de713 - std::panicking::default_hook::h171667a6e5f66517
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x56199a8dee5d - std::panicking::rust_panic_with_hook::hb748cf56d2d9af62
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/panicking.rs:779:13
[INFO] [stderr]     12:     0x56199a8decf9 - std::panicking::begin_panic_handler::{{closure}}::h1f68a14808274394
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/panicking.rs:649:13
[INFO] [stderr]     13:     0x56199a8dda96 - std::sys_common::backtrace::__rust_end_short_backtrace::h36413da1fefb6b73
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x56199a8dea64 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x56199a61443a - core::panicking::panic_nounwind_fmt::runtime::h02e4c2cf4dde3226
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/panicking.rs:110:18
[INFO] [stderr]     16:     0x56199a61443a - core::panicking::panic_nounwind_fmt::ha6ca1ba813de2ee3
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/panicking.rs:123:9
[INFO] [stderr]     17:     0x56199a6144e9 - core::panicking::panic_nounwind::h64cb8905c9f7b2b7
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/core/src/panicking.rs:156:5
[INFO] [stderr]     18:     0x56199a79f2eb - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::h9348b4d2d8911957
[INFO] [stderr]     19:     0x56199a79f1e4 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::hd795226557f01b0e
[INFO] [stderr]     20:     0x56199a8186e5 - core::slice::<impl [T]>::get_unchecked::h3d554c8a3f2d52c8
[INFO] [stderr]     21:     0x56199a6816fe - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::ha8ce54f41eedc1c2
[INFO] [stderr]     22:     0x56199a72ea6c - syntex_syntax::fold::noop_fold_mod::h79de490506aabc55
[INFO] [stderr]     23:     0x56199a7f4c5f - syntex_syntax::fold::Folder::fold_mod::h55ae123160469c88
[INFO] [stderr]     24:     0x56199a72804d - syntex_syntax::fold::noop_fold_item_kind::h864e81602da24f66
[INFO] [stderr]     25:     0x56199a7f492f - syntex_syntax::fold::Folder::fold_item_kind::h51e146a96d30ee5b
[INFO] [stderr]     26:     0x56199a73029a - syntex_syntax::fold::noop_fold_item_simple::h7e9773a81511b0a2
[INFO] [stderr]     27:     0x56199a7f489f - syntex_syntax::fold::Folder::fold_item_simple::he6638e3b06ebe391
[INFO] [stderr]     28:     0x56199a72f8df - syntex_syntax::fold::noop_fold_item::{{closure}}::hfa913b845d495cff
[INFO] [stderr]     29:     0x56199a822d18 - syntex_syntax::ptr::P<T>::map::h74e5eedad6ec01f8
[INFO] [stderr]     30:     0x56199a72f843 - syntex_syntax::fold::noop_fold_item::hef860ec8f74d5578
[INFO] [stderr]     31:     0x56199a7feeb1 - syntex_syntax::ext::expand::expand_multi_modified::h3f7089b765579d4b
[INFO] [stderr]     32:     0x56199a779cd8 - syntex_syntax::ext::decorator::expand_annotatable::h4ba33b1e8a9418af
[INFO] [stderr]     33:     0x56199a7fdebc - syntex_syntax::ext::expand::expand_item::h88d4d00e200bfa29
[INFO] [stderr]     34:     0x56199a801232 - <syntex_syntax::ext::expand::MacroExpander as syntex_syntax::fold::Folder>::fold_item::h4b9bced28496005b
[INFO] [stderr]     35:     0x56199a72ef66 - syntex_syntax::fold::noop_fold_crate::h63791294311f86da
[INFO] [stderr]     36:     0x56199a800a2e - <syntex_syntax::ext::expand::MacroExpander as syntex_syntax::fold::Folder>::fold_crate::h239af29b946a93ed
[INFO] [stderr]     37:     0x56199a8020a2 - syntex_syntax::ext::expand::expand_crate_with_expander::h5f90c2a9def90e2d
[INFO] [stderr]     38:     0x56199a801c04 - syntex_syntax::ext::expand::expand_crate::h4383c8980ebc46b6
[INFO] [stderr]     39:     0x56199a6491db - syntex::Registry::expand_crate::h16759370fc2d1363
[INFO] [stderr]     40:     0x56199a6199e7 - syntex::Registry::expand::h8c9beedeb752865b
[INFO] [stderr]     41:     0x56199a614eba - quasi_codegen::expand::{{closure}}::h70c1c1d98206b17d
[INFO] [stderr]     42:     0x56199a614f66 - std::sys_common::backtrace::__rust_begin_short_backtrace::hec63b95393addb02
[INFO] [stderr]     43:     0x56199a617405 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::hdd822bb7f9ac9475
[INFO] [stderr]     44:     0x56199a614c18 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h822d1e3bd9bfef8a
[INFO] [stderr]     45:     0x56199a617624 - std::panicking::try::do_call::h519c6ae2011e0a86
[INFO] [stderr]     46:     0x56199a61ab6b - __rust_try
[INFO] [stderr]     47:     0x56199a617598 - std::panicking::try::hd0369bdffc9924bb
[INFO] [stderr]     48:     0x56199a61727c - std::thread::Builder::spawn_unchecked_::{{closure}}::h46cf092d561d0ba9
[INFO] [stderr]     49:     0x56199a617a76 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h169a72c7879dbb9f
[INFO] [stderr]     50:     0x56199a8e1215 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hee9e7228283e5d1b
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/alloc/src/boxed.rs:2020:9
[INFO] [stderr]     51:     0x56199a8e1215 - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::hbd9fbc2bde3f3fa9
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/alloc/src/boxed.rs:2020:9
[INFO] [stderr]     52:     0x56199a8e1215 - std::sys::pal::unix::thread::Thread::new::thread_start::hc28915cf23f2ced7
[INFO] [stderr]                                  at /rustc/30f74ff0dc4d66debc8b50724c446f817e5f75f4/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]     53:     0x7f57c5f86ac3 - <unknown>
[INFO] [stderr]     54:     0x7f57c6017bf4 - __clone
[INFO] [stderr]     55:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "ea9a814be10a2595705021eb6c795d103b2ffd815160449155226b28546868af", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ea9a814be10a2595705021eb6c795d103b2ffd815160449155226b28546868af", kill_on_drop: false }`
[INFO] [stdout] ea9a814be10a2595705021eb6c795d103b2ffd815160449155226b28546868af
