[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#4df9f17489d7583e770b43c00c7668d516e9f4d4 for pr-101509
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanowell%2Fchess-proof" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anowell/chess-proof on toolchain 4df9f17489d7583e770b43c00c7668d516e9f4d4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+4df9f17489d7583e770b43c00c7668d516e9f4d4" "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-2/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" "+4df9f17489d7583e770b43c00c7668d516e9f4d4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4df9f17489d7583e770b43c00c7668d516e9f4d4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e6f85bae8035f4425b18027139eebf53afd68217a54b750a26e2ddb3ff62090
[INFO] running `Command { std: "docker" "start" "-a" "5e6f85bae8035f4425b18027139eebf53afd68217a54b750a26e2ddb3ff62090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e6f85bae8035f4425b18027139eebf53afd68217a54b750a26e2ddb3ff62090", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e6f85bae8035f4425b18027139eebf53afd68217a54b750a26e2ddb3ff62090", kill_on_drop: false }`
[INFO] [stdout] 5e6f85bae8035f4425b18027139eebf53afd68217a54b750a26e2ddb3ff62090
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+4df9f17489d7583e770b43c00c7668d516e9f4d4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2f5162572d1d55d3190b97c1d39a5ada20d8336ace5a0338b3091887a8883f53
[INFO] running `Command { std: "docker" "start" "-a" "2f5162572d1d55d3190b97c1d39a5ada20d8336ace5a0338b3091887a8883f53", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.124
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling crossbeam-utils v0.8.8
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling gimli v0.26.1
[INFO] [stderr]    Compiling rand_core v0.5.1
[INFO] [stderr]    Compiling ppv-lite86 v0.2.16
[INFO] [stderr]    Compiling rustc-demangle v0.1.21
[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 either v1.6.1
[INFO] [stderr]     Checking arrayvec v0.5.2
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling miniz_oxide v0.5.1
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[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-78c09b7814648f7f/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:     0x55f229240ca0 - std::backtrace_rs::backtrace::libunwind::trace::habff2b2285368acd
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x55f229240ca0 - std::backtrace_rs::backtrace::trace_unsynchronized::h68d35ce2994c373b
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x55f229240ca0 - std::sys_common::backtrace::_print_fmt::h633fe28168108383
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/sys_common/backtrace.rs:66:5
[INFO] [stderr]      3:     0x55f229240ca0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h541e707ca31e081f
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/sys_common/backtrace.rs:45:22
[INFO] [stderr]      4:     0x55f22925dd5e - core::fmt::write::h4243c5e35ffcd7c9
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/fmt/mod.rs:1202:17
[INFO] [stderr]      5:     0x55f22923dec5 - std::io::Write::write_fmt::h0f4f962e75ab87d2
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/io/mod.rs:1679:15
[INFO] [stderr]      6:     0x55f229242393 - std::sys_common::backtrace::_print::hd5a646d9c8119c78
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/sys_common/backtrace.rs:48:5
[INFO] [stderr]      7:     0x55f229242393 - std::sys_common::backtrace::print::h1750f783112c3631
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/sys_common/backtrace.rs:35:9
[INFO] [stderr]      8:     0x55f229242393 - std::panicking::default_hook::{{closure}}::h58439f7a26601128
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:295:22
[INFO] [stderr]      9:     0x55f22924207f - std::panicking::default_hook::h1fcf6e0bc9340950
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:314:9
[INFO] [stderr]     10:     0x55f229242a3a - std::panicking::rust_panic_with_hook::h2c450a1a3fa658d7
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:698:17
[INFO] [stderr]     11:     0x55f229242937 - std::panicking::begin_panic_handler::{{closure}}::h7e390acdd2d1d767
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:588:13
[INFO] [stderr]     12:     0x55f22924117c - std::sys_common::backtrace::__rust_end_short_backtrace::h2e8303eac067551e
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/sys_common/backtrace.rs:138:18
[INFO] [stderr]     13:     0x55f229242652 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:584:5
[INFO] [stderr]     14:     0x55f22921ba93 - core::panicking::panic_fmt::hbfb820d13c1093a6
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/panicking.rs:142:14
[INFO] [stderr]     15:     0x55f22925d001 - core::panicking::panic_display::h0ad4cc2998bff09c
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/panicking.rs:72:5
[INFO] [stderr]     16:     0x55f22925cfab - core::panicking::panic_str::h9456e0bccd5ae546
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/panicking.rs:56:5
[INFO] [stderr]     17:     0x55f22921b906 - core::option::expect_failed::hd9f0a01b904bb775
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/option.rs:1880:5
[INFO] [stderr]     18:     0x55f22921db62 - core::option::Option<T>::expect::h2364e2d7c0fd4c12
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/option.rs:738:21
[INFO] [stderr]     19:     0x55f229221674 - build_script_build::main::h12b208d329fb5666
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.124/build.rs:9:41
[INFO] [stderr]     20:     0x55f229225abb - core::ops::function::FnOnce::call_once::h9e7da749c1828a7e
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/ops/function.rs:248:5
[INFO] [stderr]     21:     0x55f22922586e - std::sys_common::backtrace::__rust_begin_short_backtrace::hbdebd96c1ab98832
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/sys_common/backtrace.rs:122:18
[INFO] [stderr]     22:     0x55f22921eb51 - std::rt::lang_start::{{closure}}::h3a753963d907ef0f
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x55f22923b53f - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h111a4f5a029ed342
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/core/src/ops/function.rs:280:13
[INFO] [stderr]     24:     0x55f22923b53f - std::panicking::try::do_call::hf8dca5b3933860f6
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:492:40
[INFO] [stderr]     25:     0x55f22923b53f - std::panicking::try::hd784bbf3f4668b96
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:456:19
[INFO] [stderr]     26:     0x55f22923b53f - std::panic::catch_unwind::h3225d8895633a3d4
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x55f22923b53f - std::rt::lang_start_internal::{{closure}}::hf1513e8059f7d3de
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x55f22923b53f - std::panicking::try::do_call::hb58a72e79501a548
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:492:40
[INFO] [stderr]     29:     0x55f22923b53f - std::panicking::try::hb27b60a9f9cff3f7
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panicking.rs:456:19
[INFO] [stderr]     30:     0x55f22923b53f - std::panic::catch_unwind::h673ba564d6bf12f7
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x55f22923b53f - std::rt::lang_start_internal::hf624deac87a2a750
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x55f22921eb2a - std::rt::lang_start::h525ceeb44e8825b6
[INFO] [stderr]                                  at /rustc/4df9f17489d7583e770b43c00c7668d516e9f4d4/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x55f229222de1 - main
[INFO] [stderr]     34:     0x7f2ff1c20083 - __libc_start_main
[INFO] [stderr]     35:     0x55f22921bc6e - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "2f5162572d1d55d3190b97c1d39a5ada20d8336ace5a0338b3091887a8883f53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2f5162572d1d55d3190b97c1d39a5ada20d8336ace5a0338b3091887a8883f53", kill_on_drop: false }`
[INFO] [stdout] 2f5162572d1d55d3190b97c1d39a5ada20d8336ace5a0338b3091887a8883f53