[INFO] cloning repository https://github.com/anowell/chess-proof
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anowell/chess-proof" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 06c5130f9fe6903a42570f62a6a2d30c89194b35
[INFO] checking anowell/chess-proof against try#e3fba958e26aa56a364ba6d36376f1800cd40fa5 for pr-101437
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof" "/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/anowell/chess-proof on toolchain e3fba958e26aa56a364ba6d36376f1800cd40fa5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e3fba958e26aa56a364ba6d36376f1800cd40fa5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anowell/chess-proof
[INFO] finished tweaking git repo https://github.com/anowell/chess-proof
[INFO] tweaked toml for git repo https://github.com/anowell/chess-proof written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/anowell/chess-proof already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+e3fba958e26aa56a364ba6d36376f1800cd40fa5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "+e3fba958e26aa56a364ba6d36376f1800cd40fa5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1408d8caf342025eaf60bc89d669018fa4441c623958d08d2978ef5df70dec44
[INFO] running `Command { std: "docker" "start" "-a" "1408d8caf342025eaf60bc89d669018fa4441c623958d08d2978ef5df70dec44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1408d8caf342025eaf60bc89d669018fa4441c623958d08d2978ef5df70dec44", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1408d8caf342025eaf60bc89d669018fa4441c623958d08d2978ef5df70dec44", kill_on_drop: false }`
[INFO] [stdout] 1408d8caf342025eaf60bc89d669018fa4441c623958d08d2978ef5df70dec44
[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" "+e3fba958e26aa56a364ba6d36376f1800cd40fa5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5dc8d120108d43946ffdb4ff425d90972661ccf7cb4fa680cec012271c5f25c9
[INFO] running `Command { std: "docker" "start" "-a" "5dc8d120108d43946ffdb4ff425d90972661ccf7cb4fa680cec012271c5f25c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rayon-core v1.9.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling anyhow v1.0.57
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking either v1.6.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.124`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-5a3e07fde8f9aeff/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-0.2.124/build.rs:9:63
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x55964b51ead0 - std::backtrace_rs::backtrace::libunwind::trace::he919abe567a503fe
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x55964b51ead0 - std::backtrace_rs::backtrace::trace_unsynchronized::h325afec262efa225
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55964b51ead0 - std::sys_common::backtrace::_print_fmt::h8f305d2a6ebec9ee
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55964b51ead0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h24bec6e8311d652a
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55964b53bbae - core::fmt::write::h7929a9ff9196c2e2
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/fmt/mod.rs:1202:17
[INFO] [stderr]      5:     0x55964b51be85 - std::io::Write::write_fmt::h9b9da188def8a312
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/io/mod.rs:1679:15
[INFO] [stderr]      6:     0x55964b520203 - std::sys_common::backtrace::_print::h3bc758cac7b8e6d7
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55964b520203 - std::sys_common::backtrace::print::h62af4addb18bf213
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55964b520203 - std::panicking::default_hook::{{closure}}::h5d492b60bd5dacd2
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x55964b51feef - std::panicking::default_hook::hb00e907d8bf0dc7f
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x55964b5208aa - std::panicking::rust_panic_with_hook::h407e07dbb3bb8fed
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x55964b5207a7 - std::panicking::begin_panic_handler::{{closure}}::he2fee81d3f74de69
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x55964b51efec - std::sys_common::backtrace::__rust_end_short_backtrace::hebf9f4138a807e7c
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55964b5204c2 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x55964b4f9a23 - core::panicking::panic_fmt::hbc83be24f266f231
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x55964b53ae51 - core::panicking::panic_display::h1b611a4e4745deaa
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/panicking.rs:72:5
[INFO] [stderr]     16:     0x55964b53adfb - core::panicking::panic_str::hdc2dce124b0cc7b3
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/panicking.rs:56:5
[INFO] [stderr]     17:     0x55964b4f9896 - core::option::expect_failed::h2c8f63dc81bbcd34
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/option.rs:1880:5
[INFO] [stderr]     18:     0x55964b4fbb02 - core::option::Option<T>::expect::ha1b3fecfdcb5bd27
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/option.rs:738:21
[INFO] [stderr]     19:     0x55964b4ff5d4 - build_script_build::main::hde0a5c8ffe008855
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.124/build.rs:9:41
[INFO] [stderr]     20:     0x55964b503a1b - core::ops::function::FnOnce::call_once::hd0b1fa63cb9e307b
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/ops/function.rs:248:5
[INFO] [stderr]     21:     0x55964b5037ce - std::sys_common::backtrace::__rust_begin_short_backtrace::h2f1b2780ffca7ac7
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     22:     0x55964b4fcab1 - std::rt::lang_start::{{closure}}::he5c5538ac5390087
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x55964b5193ff - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::hdd4bd3749468d39d
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/core/src/ops/function.rs:280:13
[INFO] [stderr]     24:     0x55964b5193ff - std::panicking::try::do_call::h5195fb2ddc1716ff
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:492:40
[INFO] [stderr]     25:     0x55964b5193ff - std::panicking::try::hb88c04ffe6117e5b
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:456:19
[INFO] [stderr]     26:     0x55964b5193ff - std::panic::catch_unwind::ha79a7dd587ef201d
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x55964b5193ff - std::rt::lang_start_internal::{{closure}}::h2d6e966af21bf214
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x55964b5193ff - std::panicking::try::do_call::h4cc4e35f2ff511bd
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:492:40
[INFO] [stderr]     29:     0x55964b5193ff - std::panicking::try::hed9e6aed71cf80a7
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panicking.rs:456:19
[INFO] [stderr]     30:     0x55964b5193ff - std::panic::catch_unwind::hb3861f8a72721186
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x55964b5193ff - std::rt::lang_start_internal::haba18db76e682a5b
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x55964b4fca8a - std::rt::lang_start::hcc0d3b4796e61d35
[INFO] [stderr]                                  at /rustc/e3fba958e26aa56a364ba6d36376f1800cd40fa5/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x55964b500d41 - main
[INFO] [stderr]     34:     0x7f7c4dd33083 - __libc_start_main
[INFO] [stderr]     35:     0x55964b4f9bfe - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5dc8d120108d43946ffdb4ff425d90972661ccf7cb4fa680cec012271c5f25c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5dc8d120108d43946ffdb4ff425d90972661ccf7cb4fa680cec012271c5f25c9", kill_on_drop: false }`
[INFO] [stdout] 5dc8d120108d43946ffdb4ff425d90972661ccf7cb4fa680cec012271c5f25c9