[INFO] cloning repository https://github.com/mwcampbell/cargo-forced-feature-repro
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwcampbell/cargo-forced-feature-repro" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwcampbell%2Fcargo-forced-feature-repro", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwcampbell%2Fcargo-forced-feature-repro'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d1b0b157c3d6c9ce84aa66d25895b9e1efc4341
[INFO] checking mwcampbell/cargo-forced-feature-repro against try#94e848735e78b58442e0b82e9c60f8f430840389 for pr-149218
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwcampbell%2Fcargo-forced-feature-repro" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mwcampbell/cargo-forced-feature-repro
[INFO] finished tweaking git repo https://github.com/mwcampbell/cargo-forced-feature-repro
[INFO] tweaked toml for git repo https://github.com/mwcampbell/cargo-forced-feature-repro written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mwcampbell/cargo-forced-feature-repro on toolchain 94e848735e78b58442e0b82e9c60f8f430840389
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mwcampbell/cargo-forced-feature-repro already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded thread_local v1.0.1
[INFO] [stderr]   Downloaded speech-dispatcher v0.4.3
[INFO] [stderr]   Downloaded termcolor v1.1.0
[INFO] [stderr]   Downloaded proc-macro2 v1.0.19
[INFO] [stderr]   Downloaded cexpr v0.3.6
[INFO] [stderr]   Downloaded lazycell v1.2.1
[INFO] [stderr]   Downloaded clang-sys v0.28.1
[INFO] [stderr]   Downloaded cc v1.0.58
[INFO] [stderr]   Downloaded aho-corasick v0.7.13
[INFO] [stderr]   Downloaded bindgen v0.52.0
[INFO] [stderr]   Downloaded clap v2.33.1
[INFO] [stderr]   Downloaded regex v1.3.9
[INFO] [stderr]   Downloaded speech-dispatcher-sys v0.4.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fa9075b09206180403461884903c8ef12d0c8af41a2508c2ebaba7ab0e61c9e9
[INFO] running `Command { std: "docker" "start" "-a" "fa9075b09206180403461884903c8ef12d0c8af41a2508c2ebaba7ab0e61c9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fa9075b09206180403461884903c8ef12d0c8af41a2508c2ebaba7ab0e61c9e9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fa9075b09206180403461884903c8ef12d0c8af41a2508c2ebaba7ab0e61c9e9", kill_on_drop: false }`
[INFO] [stdout] fa9075b09206180403461884903c8ef12d0c8af41a2508c2ebaba7ab0e61c9e9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+94e848735e78b58442e0b82e9c60f8f430840389" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5903373c31266ebe24e70a4eb102f58f47adecaa2a48e7dbad70573b091aefe0
[INFO] running `Command { std: "docker" "start" "-a" "5903373c31266ebe24e70a4eb102f58f47adecaa2a48e7dbad70573b091aefe0", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling glob v0.3.0
[INFO] [stderr]    Compiling cc v1.0.58
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling regex-syntax v0.6.18
[INFO] [stderr]    Compiling unicode-width v0.1.8
[INFO] [stderr]    Compiling cfg-if v0.1.10
[INFO] [stderr]    Compiling strsim v0.8.0
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling thread_local v1.0.1
[INFO] [stderr]    Compiling ansi_term v0.11.0
[INFO] [stderr]    Compiling termcolor v1.1.0
[INFO] [stderr]    Compiling textwrap v0.11.0
[INFO] [stderr]    Compiling humantime v1.3.0
[INFO] [stderr]    Compiling bindgen v0.52.0
[INFO] [stderr]    Compiling shlex v0.1.1
[INFO] [stderr]    Compiling lazycell v1.2.1
[INFO] [stderr]    Compiling gcc v0.3.55
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling clang-sys v0.28.1
[INFO] [stderr]     Checking aho-corasick v0.7.13
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling libloading v0.5.2
[INFO] [stderr]    Compiling cexpr v0.3.6
[INFO] [stderr]    Compiling regex v1.3.9
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling speech-dispatcher-sys v0.4.2
[INFO] [stderr] error: failed to run custom build command for `speech-dispatcher-sys v0.4.2`
[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/speech-dispatcher-sys-e82fee34735c24be/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rustc-link-lib=speechd
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr] 
[INFO] [stderr]   thread 'main' (714) panicked at /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.19/src/fallback.rs:692:9:
[INFO] [stderr]   "__mbstate_t_union_(unnamed_at_/usr/include/x86_64-linux-gnu/bits/types/__mbstate_t_h_16_3)" is not a valid Ident
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x5cfc9623f6a2 - std::backtrace_rs::backtrace::libunwind::trace::h80e4eadf14c66f26
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/../../backtrace/src/backtrace/libunwind.rs:117:9
[INFO] [stderr]      1:     0x5cfc9623f6a2 - std::backtrace_rs::backtrace::trace_unsynchronized::he46a0c19ed38f7c7
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/../../backtrace/src/backtrace/mod.rs:66:14
[INFO] [stderr]      2:     0x5cfc9623f6a2 - std::sys::backtrace::_print_fmt::hc7a43b2421a0b6ba
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:66:9
[INFO] [stderr]      3:     0x5cfc9623f6a2 - <std::sys::backtrace::BacktraceLock::print::DisplayBacktrace as core::fmt::Display>::fmt::h58cb999c48fcda8e
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:39:26
[INFO] [stderr]      4:     0x5cfc962505b7 - core::fmt::rt::Argument::fmt::h5811bb9db91c4bdf
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/core/src/fmt/rt.rs:152:76
[INFO] [stderr]      5:     0x5cfc962505b7 - core::fmt::write::hbe5d6514e7994ce4
[INFO] [stderr]      6:     0x5cfc962131a6 - std::io::default_write_fmt::h9d9abe87a9458259
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:639:11
[INFO] [stderr]      7:     0x5cfc962131a6 - std::io::Write::write_fmt::h959cd774853fbaf4
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/io/mod.rs:1994:13
[INFO] [stderr]      8:     0x5cfc9621fc84 - std::sys::backtrace::BacktraceLock::print::h1c1878c0edb74dcf
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:42:9
[INFO] [stderr]      9:     0x5cfc9621fc84 - std::panicking::default_hook::{{closure}}::h03783dc55b1c4639
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:293:27
[INFO] [stderr]     10:     0x5cfc9621faa9 - std::panicking::default_hook::h9f69de0df6286f92
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:320:9
[INFO] [stderr]     11:     0x5cfc9622019b - std::panicking::panic_with_hook::h5cd3d9dc1294b80b
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:826:13
[INFO] [stderr]     12:     0x5cfc96220018 - std::panicking::panic_handler::{{closure}}::h17cea3611bf99675
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:699:13
[INFO] [stderr]     13:     0x5cfc9621d549 - std::sys::backtrace::__rust_end_short_backtrace::h665c00b7404bec19
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/sys/backtrace.rs:174:18
[INFO] [stderr]     14:     0x5cfc96207e1d - __rustc[a72051c83d0cfd7e]::rust_begin_unwind
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:690:5
[INFO] [stderr]     15:     0x5cfc9625a0bc - core::panicking::panic_fmt::h428a28ace6f8a6f4
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/core/src/panicking.rs:80:14
[INFO] [stderr]     16:     0x5cfc9611caab - proc_macro2[8a6f5a0ad054ea83]::fallback::validate_ident
[INFO] [stderr]     17:     0x5cfc9611bf91 - <proc_macro2[8a6f5a0ad054ea83]::fallback::Ident>::_new
[INFO] [stderr]     18:     0x5cfc9611bf4f - <proc_macro2[8a6f5a0ad054ea83]::fallback::Ident>::new
[INFO] [stderr]     19:     0x5cfc961150c8 - <proc_macro2[8a6f5a0ad054ea83]::Ident>::new
[INFO] [stderr]     20:     0x5cfc95ff79b5 - <bindgen[9bcd79755797b88]::ir::context::BindgenContext>::rust_ident_raw::<alloc[e73a598ae3958ce2]::borrow::Cow<str>>
[INFO] [stderr]     21:     0x5cfc95ff7320 - <bindgen[9bcd79755797b88]::ir::context::BindgenContext>::rust_ident::<&alloc[e73a598ae3958ce2]::string::String>
[INFO] [stderr]     22:     0x5cfc95f3f719 - <bindgen[9bcd79755797b88]::ir::comp::CompInfo as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     23:     0x5cfc95f57ee5 - <bindgen[9bcd79755797b88]::ir::ty::Type as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     24:     0x5cfc95f08445 - <bindgen[9bcd79755797b88]::ir::item::Item as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     25:     0x5cfc95f45936 - <bindgen[9bcd79755797b88]::ir::comp::CompInfo as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     26:     0x5cfc95f57ee5 - <bindgen[9bcd79755797b88]::ir::ty::Type as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     27:     0x5cfc95f08445 - <bindgen[9bcd79755797b88]::ir::item::Item as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     28:     0x5cfc95ee13f5 - <bindgen[9bcd79755797b88]::ir::module::Module as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen::{closure#0}
[INFO] [stderr]     29:     0x5cfc95ef1c57 - <bindgen[9bcd79755797b88]::ir::module::Module as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     30:     0x5cfc95f08420 - <bindgen[9bcd79755797b88]::ir::item::Item as bindgen[9bcd79755797b88]::codegen::CodeGenerator>::codegen
[INFO] [stderr]     31:     0x5cfc95ee0b1b - bindgen[9bcd79755797b88]::codegen::codegen::{closure#0}
[INFO] [stderr]     32:     0x5cfc95ff8c18 - <bindgen[9bcd79755797b88]::ir::context::BindgenContext>::gen::<bindgen[9bcd79755797b88]::codegen::codegen::{closure#0}, alloc[e73a598ae3958ce2]::vec::Vec<proc_macro2[8a6f5a0ad054ea83]::TokenStream>>
[INFO] [stderr]     33:     0x5cfc95eec07d - bindgen[9bcd79755797b88]::codegen::codegen
[INFO] [stderr]     34:     0x5cfc95fbb27b - <bindgen[9bcd79755797b88]::Bindings>::generate
[INFO] [stderr]     35:     0x5cfc95fb7da5 - <bindgen[9bcd79755797b88]::Builder>::generate
[INFO] [stderr]     36:     0x5cfc95edbfcb - build_script_build[1863ec5e1e895635]::main
[INFO] [stderr]     37:     0x5cfc95edce53 - <fn() as core[c9d721919c7c7d9e]::ops::function::FnOnce<()>>::call_once
[INFO] [stderr]     38:     0x5cfc95edbc66 - std[eba09e545cc47dd2]::sys::backtrace::__rust_begin_short_backtrace::<fn(), ()>
[INFO] [stderr]     39:     0x5cfc95edbc79 - std[eba09e545cc47dd2]::rt::lang_start::<()>::{closure#0}
[INFO] [stderr]     40:     0x5cfc96214c2a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h363f97d521c47ff5
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/core/src/ops/function.rs:287:21
[INFO] [stderr]     41:     0x5cfc96214c2a - std::panicking::catch_unwind::do_call::h4a2dbbc2240abc17
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:582:40
[INFO] [stderr]     42:     0x5cfc96214c2a - std::panicking::catch_unwind::he31676af1f997eb7
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:545:19
[INFO] [stderr]     43:     0x5cfc96214c2a - std::panic::catch_unwind::he8ca5fc72329d194
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panic.rs:359:14
[INFO] [stderr]     44:     0x5cfc96214c2a - std::rt::lang_start_internal::{{closure}}::hac4394c065bb209d
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/rt.rs:175:24
[INFO] [stderr]     45:     0x5cfc96214c2a - std::panicking::catch_unwind::do_call::h38be5134ec9fde56
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:582:40
[INFO] [stderr]     46:     0x5cfc96214c2a - std::panicking::catch_unwind::h2c7827a3ea4afc22
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panicking.rs:545:19
[INFO] [stderr]     47:     0x5cfc96214c2a - std::panic::catch_unwind::h428ccb0beeec507c
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/panic.rs:359:14
[INFO] [stderr]     48:     0x5cfc96214c2a - std::rt::lang_start_internal::h067ee1eadeb6999d
[INFO] [stderr]                                  at /rustc/94e848735e78b58442e0b82e9c60f8f430840389/library/std/src/rt.rs:171:5
[INFO] [stderr]     49:     0x5cfc95edbc51 - std[eba09e545cc47dd2]::rt::lang_start::<()>
[INFO] [stderr]     50:     0x5cfc95edd155 - main
[INFO] [stderr]     51:     0x76664762a1ca - <unknown>
[INFO] [stderr]     52:     0x76664762a28b - __libc_start_main
[INFO] [stderr]     53:     0x5cfc95edb4b5 - _start
[INFO] [stderr]     54:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "5903373c31266ebe24e70a4eb102f58f47adecaa2a48e7dbad70573b091aefe0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5903373c31266ebe24e70a4eb102f58f47adecaa2a48e7dbad70573b091aefe0", kill_on_drop: false }`
[INFO] [stdout] 5903373c31266ebe24e70a4eb102f58f47adecaa2a48e7dbad70573b091aefe0