[INFO] cloning repository https://github.com/harrisonthorne/mvelopes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/harrisonthorne/mvelopes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharrisonthorne%2Fmvelopes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharrisonthorne%2Fmvelopes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e45b418e5389a555768ad8f7e7022539d8a91e53
[INFO] checking harrisonthorne/mvelopes against try#a8425075041d4b9af9bf32e2a267dfb9db2cfffb for pr-100043-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fharrisonthorne%2Fmvelopes" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/harrisonthorne/mvelopes on toolchain a8425075041d4b9af9bf32e2a267dfb9db2cfffb
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/harrisonthorne/mvelopes
[INFO] finished tweaking git repo https://github.com/harrisonthorne/mvelopes
[INFO] tweaked toml for git repo https://github.com/harrisonthorne/mvelopes written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/harrisonthorne/mvelopes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7b86089404722b748a38c699f711058486ee2c5dcf5c5ffca2b6ce7ff9a1a444
[INFO] running `Command { std: "docker" "start" "-a" "7b86089404722b748a38c699f711058486ee2c5dcf5c5ffca2b6ce7ff9a1a444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7b86089404722b748a38c699f711058486ee2c5dcf5c5ffca2b6ce7ff9a1a444", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7b86089404722b748a38c699f711058486ee2c5dcf5c5ffca2b6ce7ff9a1a444", kill_on_drop: false }`
[INFO] [stdout] 7b86089404722b748a38c699f711058486ee2c5dcf5c5ffca2b6ce7ff9a1a444
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+a8425075041d4b9af9bf32e2a267dfb9db2cfffb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 365fd92acc208125ebec8039dc61d8fdfa76aa06b68f9e778c76faaef608e8a0
[INFO] running `Command { std: "docker" "start" "-a" "365fd92acc208125ebec8039dc61d8fdfa76aa06b68f9e778c76faaef608e8a0", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling autocfg v0.1.7
[INFO] [stderr]    Compiling memchr v2.3.0
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling serde v1.0.104
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]     Checking unicode-width v0.1.7
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking regex-syntax v0.6.18
[INFO] [stderr]     Checking itoa v0.4.4
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.66`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-7aae3d1719debe87/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Failed to get rustc version', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.66/build.rs:7:31
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x562695a41f50 - std::backtrace_rs::backtrace::libunwind::trace::hf06ef876db617fbc
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x562695a41f50 - std::backtrace_rs::backtrace::trace_unsynchronized::h80fa01a28063820b
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x562695a41f50 - std::sys_common::backtrace::_print_fmt::h0dbd4e052f947629
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x562695a41f50 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h468a4a49597af04f
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x562695a5fd9c - core::fmt::write::hd6174485c5d70490
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/fmt/mod.rs:1198:17
[INFO] [stderr]      5:     0x562695a3f525 - std::io::Write::write_fmt::hfa2642bd26abdcc7
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/io/mod.rs:1672:15
[INFO] [stderr]      6:     0x562695a436a1 - std::sys_common::backtrace::_print::he12f19f5d0e9a2d0
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x562695a436a1 - std::sys_common::backtrace::print::h7e8c1d2e6df351bc
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x562695a436a1 - std::panicking::default_hook::{{closure}}::habef345672f7761c
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x562695a43373 - std::panicking::default_hook::h316e121d871daf5e
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x562695a43d43 - std::panicking::rust_panic_with_hook::hfbbf2b2aae341839
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x562695a43c37 - std::panicking::begin_panic_handler::{{closure}}::h7a2d58b5d495710b
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x562695a42474 - std::sys_common::backtrace::__rust_end_short_backtrace::hc8a337759f965865
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x562695a43962 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x562695a1b893 - core::panicking::panic_fmt::h4e22c2dace07910f
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x562695a5ef81 - core::panicking::panic_display::hda6fbfca410e3eef
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/panicking.rs:72:5
[INFO] [stderr]     16:     0x562695a5ef2b - core::panicking::panic_str::hcae8a19db695f378
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/panicking.rs:56:5
[INFO] [stderr]     17:     0x562695a1b706 - core::option::expect_failed::ha062b96eb3648607
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/option.rs:1874:5
[INFO] [stderr]     18:     0x562695a1dd22 - core::option::Option<T>::expect::h06ec47b232819774
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/option.rs:738:21
[INFO] [stderr]     19:     0x562695a241d7 - build_script_build::main::hcf2b071ffbe11192
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.66/build.rs:7:9
[INFO] [stderr]     20:     0x562695a2595b - core::ops::function::FnOnce::call_once::h33ce5051977cb4a1
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/ops/function.rs:248:5
[INFO] [stderr]     21:     0x562695a256de - std::sys_common::backtrace::__rust_begin_short_backtrace::hf73b008dfb943773
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     22:     0x562695a221d1 - std::rt::lang_start::{{closure}}::h60e17f2e45488c40
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/rt.rs:145:18
[INFO] [stderr]     23:     0x562695a3c83a - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h1ffc3abeed926b26
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/core/src/ops/function.rs:280:13
[INFO] [stderr]     24:     0x562695a3c83a - std::panicking::try::do_call::h2fb1319efc216b53
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:492:40
[INFO] [stderr]     25:     0x562695a3c83a - std::panicking::try::h70db15d86e2f07ec
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:456:19
[INFO] [stderr]     26:     0x562695a3c83a - std::panic::catch_unwind::h8f69a8f26090f7b3
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x562695a3c83a - std::rt::lang_start_internal::{{closure}}::hb192f92799be4ee5
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/rt.rs:128:48
[INFO] [stderr]     28:     0x562695a3c83a - std::panicking::try::do_call::h246a56c82fd0b6e2
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:492:40
[INFO] [stderr]     29:     0x562695a3c83a - std::panicking::try::h4af37103698f1fa0
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panicking.rs:456:19
[INFO] [stderr]     30:     0x562695a3c83a - std::panic::catch_unwind::h66e0d882d36197f7
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x562695a3c83a - std::rt::lang_start_internal::hb3da2290b8a9ca43
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/rt.rs:128:20
[INFO] [stderr]     32:     0x562695a221a0 - std::rt::lang_start::hebb5f37f25d25f9d
[INFO] [stderr]                                  at /rustc/a8425075041d4b9af9bf32e2a267dfb9db2cfffb/library/std/src/rt.rs:144:17
[INFO] [stderr]     33:     0x562695a2567c - main
[INFO] [stderr]     34:     0x7fab81a8d083 - __libc_start_main
[INFO] [stderr]     35:     0x562695a1ba8e - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "365fd92acc208125ebec8039dc61d8fdfa76aa06b68f9e778c76faaef608e8a0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "365fd92acc208125ebec8039dc61d8fdfa76aa06b68f9e778c76faaef608e8a0", kill_on_drop: false }`
[INFO] [stdout] 365fd92acc208125ebec8039dc61d8fdfa76aa06b68f9e778c76faaef608e8a0