[INFO] fetching crate libflo_module 0.1.2...
[INFO] checking libflo_module-0.1.2 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[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 c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 40 packages to latest compatible versions
[INFO] [stderr]       Adding addr2line v0.21.0 (latest: v0.22.0)
[INFO] [stderr]       Adding aster v0.27.0 (latest: v0.41.0)
[INFO] [stderr]       Adding bitflags v0.7.0 (latest: v2.5.0)
[INFO] [stderr]       Adding dtoa v0.2.2 (latest: v1.0.9)
[INFO] [stderr]       Adding error-chain v0.7.2 (latest: v0.12.4)
[INFO] [stderr]       Adding gimli v0.28.1 (latest: v0.29.0)
[INFO] [stderr]       Adding itoa v0.1.1 (latest: v1.0.11)
[INFO] [stderr]       Adding log v0.3.9 (latest: v0.4.21)
[INFO] [stderr]       Adding num-traits v0.1.43 (latest: v0.2.18)
[INFO] [stderr]       Adding object v0.32.2 (latest: v0.35.0)
[INFO] [stderr]       Adding quasi v0.20.1 (latest: v0.32.0)
[INFO] [stderr]       Adding quasi_codegen v0.20.0 (latest: v0.32.0)
[INFO] [stderr]       Adding quasi_macros v0.20.0 (latest: v0.32.0)
[INFO] [stderr]       Adding serde v0.8.23 (latest: v1.0.200)
[INFO] [stderr]       Adding serde_codegen v0.8.9 (latest: v0.9.0)
[INFO] [stderr]       Adding serde_codegen_internals v0.8.9 (latest: v0.14.2)
[INFO] [stderr]       Adding serde_json v0.8.6 (latest: v1.0.116)
[INFO] [stderr]       Adding syntex v0.44.0 (latest: v0.58.1)
[INFO] [stderr]       Adding syntex_errors v0.44.0 (latest: v0.59.1)
[INFO] [stderr]       Adding syntex_pos v0.44.0 (latest: v0.59.1)
[INFO] [stderr]       Adding syntex_syntax v0.44.1 (latest: v0.59.1)
[INFO] [stderr]       Adding term v0.4.6 (latest: v0.7.0)
[INFO] [stderr]       Adding unicode-xid v0.0.3 (latest: v0.2.4)
[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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syntex_pos v0.44.0
[INFO] [stderr]   Downloaded unicode-xid v0.0.3
[INFO] [stderr]   Downloaded syntex_errors v0.44.0
[INFO] [stderr]   Downloaded serde_macros v0.8.9
[INFO] [stderr]   Downloaded serde_codegen_internals v0.8.9
[INFO] [stderr]   Downloaded syntex v0.44.0
[INFO] [stderr]   Downloaded serde_codegen v0.8.9
[INFO] [stderr]   Downloaded quasi_codegen v0.20.0
[INFO] [stderr]   Downloaded quasi_macros v0.20.0
[INFO] [stderr]   Downloaded quasi v0.20.1
[INFO] [stderr]   Downloaded syntex_syntax v0.44.1
[INFO] [stderr]   Downloaded error-chain v0.7.2
[INFO] [stderr]   Downloaded aster v0.27.0
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3e7a3315937438e56b2ff5e7aef593715ce091dcc77ac87ad37ed55bc84fb507
[INFO] running `Command { std: "docker" "start" "-a" "3e7a3315937438e56b2ff5e7aef593715ce091dcc77ac87ad37ed55bc84fb507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3e7a3315937438e56b2ff5e7aef593715ce091dcc77ac87ad37ed55bc84fb507", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7a3315937438e56b2ff5e7aef593715ce091dcc77ac87ad37ed55bc84fb507", kill_on_drop: false }`
[INFO] [stdout] 3e7a3315937438e56b2ff5e7aef593715ce091dcc77ac87ad37ed55bc84fb507
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cfba0364c4d5a75c481fba3b4a8787254ff0cba8dd2163a54204c1d3b2c24269
[INFO] running `Command { std: "docker" "start" "-a" "cfba0364c4d5a75c481fba3b4a8787254ff0cba8dd2163a54204c1d3b2c24269", kill_on_drop: false }`
[INFO] [stderr]    Compiling rustc-serialize v0.3.25
[INFO] [stderr]    Compiling term v0.4.6
[INFO] [stderr]    Compiling unicode-xid v0.0.3
[INFO] [stderr]    Compiling bitflags v0.7.0
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]     Checking miniz_oxide v0.7.2
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking serde v0.8.23
[INFO] [stderr]     Checking backtrace v0.3.71
[INFO] [stderr]     Checking error-chain v0.7.2
[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]    Compiling syntex v0.44.0
[INFO] [stderr]    Compiling aster v0.27.0
[INFO] [stderr]    Compiling quasi v0.20.1
[INFO] [stderr]    Compiling serde_codegen_internals v0.8.9
[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-8974054c3c598299/build-script-build` (signal: 6, SIGABRT: process abort signal)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread '<unnamed>' panicked at library/core/src/panicking.rs:220:5:
[INFO] [stderr]   unsafe precondition(s) violated: slice::get_unchecked requires that the index is within the slice
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55e8d36c48f5 - std::backtrace_rs::backtrace::libunwind::trace::hf6d84d188eed4942
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/../../backtrace/src/backtrace/libunwind.rs:105:5
[INFO] [stderr]      1:     0x55e8d36c48f5 - std::backtrace_rs::backtrace::trace_unsynchronized::hb841ab02b27b2a81
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55e8d36c48f5 - std::sys_common::backtrace::_print_fmt::h7d09263e980d2dc2
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55e8d36c48f5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h8710a3386e66dc13
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55e8d36e3b5b - core::fmt::rt::Argument::fmt::h56356193ea14b69e
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/fmt/rt.rs:165:63
[INFO] [stderr]      5:     0x55e8d36e3b5b - core::fmt::write::ha8a35e57fe29df69
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/fmt/mod.rs:1157:21
[INFO] [stderr]      6:     0x55e8d36c273f - std::io::Write::write_fmt::h070417d35cbd0295
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/io/mod.rs:1832:15
[INFO] [stderr]      7:     0x55e8d36c46ce - std::sys_common::backtrace::_print::h98c81ef11000e712
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55e8d36c46ce - std::sys_common::backtrace::print::hb4fda26b0eb411fc
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55e8d36c5989 - std::panicking::default_hook::{{closure}}::h58b999a8a8b72663
[INFO] [stderr]     10:     0x55e8d36c56cd - std::panicking::default_hook::h9ee81ffa3eaff881
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:298:9
[INFO] [stderr]     11:     0x55e8d36c5e23 - std::panicking::rust_panic_with_hook::h7cf1f420e89ee254
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:795:13
[INFO] [stderr]     12:     0x55e8d36c5ccb - std::panicking::begin_panic_handler::{{closure}}::h1e92862156407829
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:656:13
[INFO] [stderr]     13:     0x55e8d36c4db9 - std::sys_common::backtrace::__rust_end_short_backtrace::hdb9396439049b139
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55e8d36c5a37 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/panicking.rs:652:5
[INFO] [stderr]     15:     0x55e8d34093d0 - core::panicking::panic_nounwind_fmt::runtime::ha13be5d66c23ec9f
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/panicking.rs:110:18
[INFO] [stderr]     16:     0x55e8d34093d0 - core::panicking::panic_nounwind_fmt::h69f3ef1679142200
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/panicking.rs:120:5
[INFO] [stderr]     17:     0x55e8d3409462 - core::panicking::panic_nounwind::hf4d33646b7c52f0b
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/core/src/panicking.rs:220:5
[INFO] [stderr]     18:     0x55e8d361545b - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::precondition_check::hcf273457e5d776e0
[INFO] [stderr]     19:     0x55e8d3614ff4 - <usize as core::slice::index::SliceIndex<[T]>>::get_unchecked::hb6999834b8695000
[INFO] [stderr]     20:     0x55e8d35547b5 - core::slice::<impl [T]>::get_unchecked::hcd583228790dcf24
[INFO] [stderr]     21:     0x55e8d3468d5e - <alloc::vec::Vec<T> as syntex_syntax::util::move_map::MoveMap<T>>::move_flat_map::h8d55971b767e300a
[INFO] [stderr]     22:     0x55e8d351982c - syntex_syntax::fold::noop_fold_mod::hc6f253571e0e965d
[INFO] [stderr]     23:     0x55e8d3617ccf - syntex_syntax::fold::Folder::fold_mod::h9d16d48b80d74354
[INFO] [stderr]     24:     0x55e8d351459d - syntex_syntax::fold::noop_fold_item_kind::ha9dd3710a9d0e67c
[INFO] [stderr]     25:     0x55e8d36179cf - syntex_syntax::fold::Folder::fold_item_kind::h197f2b59517dc358
[INFO] [stderr]     26:     0x55e8d351a69a - syntex_syntax::fold::noop_fold_item_simple::ha6c0a58ea80ee547
[INFO] [stderr]     27:     0x55e8d361790f - syntex_syntax::fold::Folder::fold_item_simple::hcc3c5d0a0b1cc2ab
[INFO] [stderr]     28:     0x55e8d351a50f - syntex_syntax::fold::noop_fold_item::{{closure}}::h5a662ca854348006
[INFO] [stderr]     29:     0x55e8d355b7f8 - syntex_syntax::ptr::P<T>::map::h102abc2056e63d65
[INFO] [stderr]     30:     0x55e8d351a453 - syntex_syntax::fold::noop_fold_item::hbc5ee7888461308a
[INFO] [stderr]     31:     0x55e8d3621d21 - syntex_syntax::ext::expand::expand_multi_modified::hc2e82ea42597226f
[INFO] [stderr]     32:     0x55e8d3634048 - syntex_syntax::ext::decorator::expand_annotatable::h7f48a4b672098af0
[INFO] [stderr]     33:     0x55e8d3620d2c - syntex_syntax::ext::expand::expand_item::hd19da4ff9f74ff6a
[INFO] [stderr]     34:     0x55e8d36240a2 - <syntex_syntax::ext::expand::MacroExpander as syntex_syntax::fold::Folder>::fold_item::h67778ff4232623df
[INFO] [stderr]     35:     0x55e8d3519bc6 - syntex_syntax::fold::noop_fold_crate::h54608e2044debd53
[INFO] [stderr]     36:     0x55e8d362389e - <syntex_syntax::ext::expand::MacroExpander as syntex_syntax::fold::Folder>::fold_crate::h9cc6087ff6e3b6dd
[INFO] [stderr]     37:     0x55e8d3624f12 - syntex_syntax::ext::expand::expand_crate_with_expander::h8f50630159fc22e6
[INFO] [stderr]     38:     0x55e8d3624a74 - syntex_syntax::ext::expand::expand_crate::h92147f07332142be
[INFO] [stderr]     39:     0x55e8d343e4db - syntex::Registry::expand_crate::h7c2893cf0fe91756
[INFO] [stderr]     40:     0x55e8d340f067 - syntex::Registry::expand::h31c07b521c2d0e10
[INFO] [stderr]     41:     0x55e8d340a058 - quasi_codegen::expand::{{closure}}::h02a1d715f71280fc
[INFO] [stderr]     42:     0x55e8d340a0f6 - std::sys_common::backtrace::__rust_begin_short_backtrace::h245802541bb7c9aa
[INFO] [stderr]     43:     0x55e8d340c795 - std::thread::Builder::spawn_unchecked_::{{closure}}::{{closure}}::h90887bb9d7e1f7d4
[INFO] [stderr]     44:     0x55e8d3409dc8 - <core::panic::unwind_safe::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h99dcb2e0033f4ab9
[INFO] [stderr]     45:     0x55e8d340caf4 - std::panicking::try::do_call::h4bcbb64cbba9e2e2
[INFO] [stderr]     46:     0x55e8d34101eb - __rust_try
[INFO] [stderr]     47:     0x55e8d340c9f8 - std::panicking::try::h4a0f854a1a7712cf
[INFO] [stderr]     48:     0x55e8d340c36c - std::thread::Builder::spawn_unchecked_::{{closure}}::h99ccfc6806495f91
[INFO] [stderr]     49:     0x55e8d340ce06 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h60427a5378729756
[INFO] [stderr]     50:     0x55e8d36c83fb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::h87f4582e8ad3bc38
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]     51:     0x55e8d36c83fb - <alloc::boxed::Box<F,A> as core::ops::function::FnOnce<Args>>::call_once::he31880cd6e731b9d
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/alloc/src/boxed.rs:2022:9
[INFO] [stderr]     52:     0x55e8d36c83fb - std::sys::pal::unix::thread::Thread::new::thread_start::h9c41f6e56e9f8829
[INFO] [stderr]                                  at /rustc/c2f2db79ca3024f68d22b45aa22b570775c2c4ad/library/std/src/sys/pal/unix/thread.rs:108:17
[INFO] [stderr]     53:     0x7f32134f8ac3 - <unknown>
[INFO] [stderr]     54:     0x7f3213589a04 - __clone
[INFO] [stderr]     55:                0x0 - <unknown>
[INFO] [stderr]   thread caused non-unwinding panic. aborting.
[INFO] running `Command { std: "docker" "inspect" "cfba0364c4d5a75c481fba3b4a8787254ff0cba8dd2163a54204c1d3b2c24269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cfba0364c4d5a75c481fba3b4a8787254ff0cba8dd2163a54204c1d3b2c24269", kill_on_drop: false }`
[INFO] [stdout] cfba0364c4d5a75c481fba3b4a8787254ff0cba8dd2163a54204c1d3b2c24269
