[INFO] fetching crate ezc 0.2.0...
[INFO] checking ezc-0.2.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate ezc 0.2.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate ezc 0.2.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ezc 0.2.0
[INFO] finished tweaking crates.io crate ezc 0.2.0
[INFO] tweaked toml for crates.io crate ezc 0.2.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate ezc 0.2.0 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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 952e3b255bf0814817cee06dc04ff67d314f730c0896dfc12b2dbca2017351bb
[INFO] running `Command { std: "docker" "start" "-a" "952e3b255bf0814817cee06dc04ff67d314f730c0896dfc12b2dbca2017351bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "952e3b255bf0814817cee06dc04ff67d314f730c0896dfc12b2dbca2017351bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "952e3b255bf0814817cee06dc04ff67d314f730c0896dfc12b2dbca2017351bb", kill_on_drop: false }`
[INFO] [stdout] 952e3b255bf0814817cee06dc04ff67d314f730c0896dfc12b2dbca2017351bb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a7ac3a519263e240072160ee5504cae40bf8da5051270d1acc8e620903a2e3ed
[INFO] running `Command { std: "docker" "start" "-a" "a7ac3a519263e240072160ee5504cae40bf8da5051270d1acc8e620903a2e3ed", kill_on_drop: false }`
[INFO] [stderr]    Compiling ezc v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ezc v0.2.0 (/opt/rustwide/workdir)`
[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/ezc-0c5b5dd056ea70bb/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at build.rs:7:14:
[INFO] [stderr]   could not run zig build, please install zig: Os { code: 2, kind: NotFound, message: "No such file or directory" }
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55b88071c0cc - std::backtrace_rs::backtrace::libunwind::trace::hf82e7f192d52e64b
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/../../backtrace/src/backtrace/libunwind.rs:104:5
[INFO] [stderr]      1:     0x55b88071c0cc - std::backtrace_rs::backtrace::trace_unsynchronized::h5ac203979c6adda5
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55b88071c0cc - std::sys_common::backtrace::_print_fmt::hed146a3c2f312bec
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:68:5
[INFO] [stderr]      3:     0x55b88071c0cc - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h447a09b0c9d8b3be
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x55b88073f3b0 - core::fmt::rt::Argument::fmt::h5746129e8952c9d4
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/fmt/rt.rs:142:9
[INFO] [stderr]      5:     0x55b88073f3b0 - core::fmt::write::he3c7b4da87cac5c9
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/fmt/mod.rs:1120:17
[INFO] [stderr]      6:     0x55b88071a13f - std::io::Write::write_fmt::h38bdb49a4fbe0f79
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/io/mod.rs:1810:15
[INFO] [stderr]      7:     0x55b88071beb4 - std::sys_common::backtrace::_print::h433ad827a8eb7117
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      8:     0x55b88071beb4 - std::sys_common::backtrace::print::hd30f60963b6f931b
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      9:     0x55b88071d3c7 - std::panicking::default_hook::{{closure}}::hae6c6d0460433514
[INFO] [stderr]     10:     0x55b88071d12f - std::panicking::default_hook::h26f114e2654b4583
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:292:9
[INFO] [stderr]     11:     0x55b88071d848 - std::panicking::rust_panic_with_hook::h8da09eceb4025e00
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:779:13
[INFO] [stderr]     12:     0x55b88071d72e - std::panicking::begin_panic_handler::{{closure}}::h14ccf55fd0d8568a
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:657:13
[INFO] [stderr]     13:     0x55b88071c596 - std::sys_common::backtrace::__rust_end_short_backtrace::hc4279fec1eb11e57
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/sys_common/backtrace.rs:171:18
[INFO] [stderr]     14:     0x55b88071d492 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:645:5
[INFO] [stderr]     15:     0x55b8806f8ed5 - core::panicking::panic_fmt::hdcd414b50414e074
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/panicking.rs:72:14
[INFO] [stderr]     16:     0x55b8806f9353 - core::result::unwrap_failed::h3b43defab008b2e8
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/result.rs:1649:5
[INFO] [stderr]     17:     0x55b8806fade8 - core::result::Result<T,E>::expect::hf7d9dbd7ece29d43
[INFO] [stderr]     18:     0x55b8806fd06a - build_script_build::main::h8bbe39a50f8a3692
[INFO] [stderr]     19:     0x55b8806fa3c3 - core::ops::function::FnOnce::call_once::h58fb91e2d61e9208
[INFO] [stderr]     20:     0x55b8806f9a86 - std::sys_common::backtrace::__rust_begin_short_backtrace::he85773bb1ad959e4
[INFO] [stderr]     21:     0x55b8806f9ef9 - std::rt::lang_start::{{closure}}::h434f5a27f2f38d51
[INFO] [stderr]     22:     0x55b880716f57 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h658622c66563c38f
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/core/src/ops/function.rs:284:13
[INFO] [stderr]     23:     0x55b880716f57 - std::panicking::try::do_call::h8002e07ffb435d48
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:552:40
[INFO] [stderr]     24:     0x55b880716f57 - std::panicking::try::he04747d1428f9f5a
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:516:19
[INFO] [stderr]     25:     0x55b880716f57 - std::panic::catch_unwind::h8f4636046dcfb2df
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panic.rs:142:14
[INFO] [stderr]     26:     0x55b880716f57 - std::rt::lang_start_internal::{{closure}}::h8dffd1ea3bc0d1d0
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/rt.rs:148:48
[INFO] [stderr]     27:     0x55b880716f57 - std::panicking::try::do_call::h5989f348b191affb
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:552:40
[INFO] [stderr]     28:     0x55b880716f57 - std::panicking::try::hfbc357d86d926a0e
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panicking.rs:516:19
[INFO] [stderr]     29:     0x55b880716f57 - std::panic::catch_unwind::he50dac537cfd37b0
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/panic.rs:142:14
[INFO] [stderr]     30:     0x55b880716f57 - std::rt::lang_start_internal::h455d839bebdeb5d7
[INFO] [stderr]                                  at /rustc/4d1bd0db7f489b22c6d8aa2385937a95412c015b/library/std/src/rt.rs:148:20
[INFO] [stderr]     31:     0x55b8806f9ed7 - std::rt::lang_start::hae1143a9d054ba54
[INFO] [stderr]     32:     0x55b8806fd325 - main
[INFO] [stderr]     33:     0x7ff2786fed90 - <unknown>
[INFO] [stderr]     34:     0x7ff2786fee40 - __libc_start_main
[INFO] [stderr]     35:     0x55b8806f9615 - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "a7ac3a519263e240072160ee5504cae40bf8da5051270d1acc8e620903a2e3ed", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7ac3a519263e240072160ee5504cae40bf8da5051270d1acc8e620903a2e3ed", kill_on_drop: false }`
[INFO] [stdout] a7ac3a519263e240072160ee5504cae40bf8da5051270d1acc8e620903a2e3ed
