[INFO] fetching crate simple_bpm 0.2.1...
[INFO] checking simple_bpm-0.2.1 against try#388b725dea7416978ab58ab1f908139d530308a7 for pr-99943
[INFO] extracting crate simple_bpm 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate simple_bpm 0.2.1 on toolchain 388b725dea7416978ab58ab1f908139d530308a7
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate simple_bpm 0.2.1
[INFO] finished tweaking crates.io crate simple_bpm 0.2.1
[INFO] tweaked toml for crates.io crate simple_bpm 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 73dd72ca7333c275af2ea256d4b77a931598c8604e945d085edc51694f12fb13
[INFO] running `Command { std: "docker" "start" "-a" "73dd72ca7333c275af2ea256d4b77a931598c8604e945d085edc51694f12fb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "73dd72ca7333c275af2ea256d4b77a931598c8604e945d085edc51694f12fb13", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "73dd72ca7333c275af2ea256d4b77a931598c8604e945d085edc51694f12fb13", kill_on_drop: false }`
[INFO] [stdout] 73dd72ca7333c275af2ea256d4b77a931598c8604e945d085edc51694f12fb13
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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@sha256:824c28ce115f6b999260af6986f3384c158e782489540e41c0b698ca1d9fd927" "/opt/rustwide/cargo-home/bin/cargo" "+388b725dea7416978ab58ab1f908139d530308a7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9be60e3ab21db96f695193f0f77c92618ed9a195380538da54d8f88b0cefcb29
[INFO] running `Command { std: "docker" "start" "-a" "9be60e3ab21db96f695193f0f77c92618ed9a195380538da54d8f88b0cefcb29", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling gimli v0.26.2
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling semver v1.0.14
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling miniz_oxide v0.5.4
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling autocfg v0.1.8
[INFO] [stderr]    Compiling nom v4.2.3
[INFO] [stderr]    Compiling quick-error v1.2.3
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling clang-sys v0.26.4
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling regex-syntax v0.6.27
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.134`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-cdfa7d4c005eb27b/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Failed to get rustc version', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.134/build.rs:9:63
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55680660e470 - std::backtrace_rs::backtrace::libunwind::trace::hc291403ee708aa9d
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x55680660e470 - std::backtrace_rs::backtrace::trace_unsynchronized::h760224b5bffe76c3
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55680660e470 - std::sys_common::backtrace::_print_fmt::hd490fcde0a3421f8
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55680660e470 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h520137f6f6087f73
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55680662b5de - core::fmt::write::ha64f0480f5625ee4
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/fmt/mod.rs:1209:17
[INFO] [stderr]      5:     0x55680660b735 - std::io::Write::write_fmt::h07c8cdce5e276981
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/io/mod.rs:1679:15
[INFO] [stderr]      6:     0x55680660fb03 - std::sys_common::backtrace::_print::h3f5685085b4e1cf2
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55680660fb03 - std::sys_common::backtrace::print::ha1967f26ae823009
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55680660fb03 - std::panicking::default_hook::{{closure}}::h6c36fb184dbda23e
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:267:22
[INFO] [stderr]      9:     0x55680660f7da - std::panicking::default_hook::ha47c99598c3e66ef
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:286:9
[INFO] [stderr]     10:     0x5568066101a9 - std::panicking::rust_panic_with_hook::hf4220eb19daaad2e
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:669:13
[INFO] [stderr]     11:     0x5568066100a7 - std::panicking::begin_panic_handler::{{closure}}::h31c1f9f91cf5593e
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:560:13
[INFO] [stderr]     12:     0x55680660e91c - std::sys_common::backtrace::__rust_end_short_backtrace::hbcd5040fa1aed4d8
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55680660fdc2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:556:5
[INFO] [stderr]     14:     0x5568065e7b43 - core::panicking::panic_fmt::he926e27f85db5422
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x55680662a881 - core::panicking::panic_display::h75abb4c900ab75f2
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/panicking.rs:72:5
[INFO] [stderr]     16:     0x55680662a82b - core::panicking::panic_str::hfb7381e557d267e7
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/panicking.rs:56:5
[INFO] [stderr]     17:     0x5568065e79b6 - core::option::expect_failed::h494c32649062b1eb
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/option.rs:1873:5
[INFO] [stderr]     18:     0x5568065f1a62 - core::option::Option<T>::expect::h658579b5f02655a3
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/option.rs:738:21
[INFO] [stderr]     19:     0x5568065ece34 - build_script_build::main::haa200505381eb3f7
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.134/build.rs:9:41
[INFO] [stderr]     20:     0x5568065eefeb - core::ops::function::FnOnce::call_once::hb5830a5d560aa49d
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/ops/function.rs:510:5
[INFO] [stderr]     21:     0x5568065f0c4e - std::sys_common::backtrace::__rust_begin_short_backtrace::h6c2391cd85f61702
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     22:     0x5568065ea021 - std::rt::lang_start::{{closure}}::h6cbb5ef370a15850
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x556806608c6f - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hf19e9c3abffad535
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/core/src/ops/function.rs:606:13
[INFO] [stderr]     24:     0x556806608c6f - std::panicking::try::do_call::h1375505a5c13a7cd
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:464:40
[INFO] [stderr]     25:     0x556806608c6f - std::panicking::try::h9802b02699c00b42
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:428:19
[INFO] [stderr]     26:     0x556806608c6f - std::panic::catch_unwind::hda116a5f00b8ca30
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x556806608c6f - std::rt::lang_start_internal::{{closure}}::h43418b1565142d47
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x556806608c6f - std::panicking::try::do_call::h67406d4e5a9f45f7
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:464:40
[INFO] [stderr]     29:     0x556806608c6f - std::panicking::try::ha362d204fbce7ce6
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panicking.rs:428:19
[INFO] [stderr]     30:     0x556806608c6f - std::panic::catch_unwind::h41066aa5d4f2fc32
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x556806608c6f - std::rt::lang_start_internal::hbc40ef0378be60f8
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x5568065e9ffa - std::rt::lang_start::haa06375facf5879f
[INFO] [stderr]                                  at /rustc/388b725dea7416978ab58ab1f908139d530308a7/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x5568065ee601 - main
[INFO] [stderr]     34:     0x7feb36b94083 - __libc_start_main
[INFO] [stderr]     35:     0x5568065e7d1e - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "9be60e3ab21db96f695193f0f77c92618ed9a195380538da54d8f88b0cefcb29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9be60e3ab21db96f695193f0f77c92618ed9a195380538da54d8f88b0cefcb29", kill_on_drop: false }`
[INFO] [stdout] 9be60e3ab21db96f695193f0f77c92618ed9a195380538da54d8f88b0cefcb29