[INFO] fetching crate quick_sort 0.2.1...
[INFO] checking quick_sort-0.2.1 against try#51ad93974f526eaf4ede64932870490e6c96e4fd for pr-103293
[INFO] extracting crate quick_sort 0.2.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate quick_sort 0.2.1 on toolchain 51ad93974f526eaf4ede64932870490e6c96e4fd
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+51ad93974f526eaf4ede64932870490e6c96e4fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate quick_sort 0.2.1
[INFO] finished tweaking crates.io crate quick_sort 0.2.1
[INFO] tweaked toml for crates.io crate quick_sort 0.2.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+51ad93974f526eaf4ede64932870490e6c96e4fd" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+51ad93974f526eaf4ede64932870490e6c96e4fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+51ad93974f526eaf4ede64932870490e6c96e4fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fd4dfaf0b1bc5a449bf8849c0e277a97a5cab5f51f3031c6574ef33d1d6cc167
[INFO] running `Command { std: "docker" "start" "-a" "fd4dfaf0b1bc5a449bf8849c0e277a97a5cab5f51f3031c6574ef33d1d6cc167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd4dfaf0b1bc5a449bf8849c0e277a97a5cab5f51f3031c6574ef33d1d6cc167", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd4dfaf0b1bc5a449bf8849c0e277a97a5cab5f51f3031c6574ef33d1d6cc167", kill_on_drop: false }`
[INFO] [stdout] fd4dfaf0b1bc5a449bf8849c0e277a97a5cab5f51f3031c6574ef33d1d6cc167
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:83125433e4fff17b1ac56874832f668d9df75ee638575aca552b68e127bedee9" "/opt/rustwide/cargo-home/bin/cargo" "+51ad93974f526eaf4ede64932870490e6c96e4fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2e033bdccd76581e07270d43f534802c738bdf3957d2f8e3a43a04404272eb6
[INFO] running `Command { std: "docker" "start" "-a" "a2e033bdccd76581e07270d43f534802c738bdf3957d2f8e3a43a04404272eb6", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.135
[INFO] [stderr]     Checking quick_sort v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `libc v0.2.135`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/libc-975672c9fb518e13/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-0.2.135/build.rs:9:63
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x559a68e30700 - std::backtrace_rs::backtrace::libunwind::trace::h1419d80c9ac2a9fd
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      1:     0x559a68e30700 - std::backtrace_rs::backtrace::trace_unsynchronized::he698a5b8b2577874
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x559a68e30700 - std::sys_common::backtrace::_print_fmt::hbdf384d384fb25cf
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/sys_common/backtrace.rs:65:5
[INFO] [stderr]      3:     0x559a68e30700 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdb7297875324e4d6
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/sys_common/backtrace.rs:44:22
[INFO] [stderr]      4:     0x559a68e4d6ee - core::fmt::write::h42b63953527cdfa8
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/fmt/mod.rs:1209:17
[INFO] [stderr]      5:     0x559a68e2dcb5 - std::io::Write::write_fmt::h6a36540def9fb238
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/io/mod.rs:1682:15
[INFO] [stderr]      6:     0x559a68e304c5 - std::sys_common::backtrace::_print::h96d9171e4f94deb3
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/sys_common/backtrace.rs:47:5
[INFO] [stderr]      7:     0x559a68e304c5 - std::sys_common::backtrace::print::h60c894cbd66cb54b
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/sys_common/backtrace.rs:34:9
[INFO] [stderr]      8:     0x559a68e31bcf - std::panicking::default_hook::{{closure}}::he7af5a1c47e1fc4a
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:267:22
[INFO] [stderr]      9:     0x559a68e3190a - std::panicking::default_hook::h3c0f799d941cd73a
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:286:9
[INFO] [stderr]     10:     0x559a68e322c8 - std::panicking::rust_panic_with_hook::h8f692041c1ee4ad0
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:688:13
[INFO] [stderr]     11:     0x559a68e32067 - std::panicking::begin_panic_handler::{{closure}}::h56231daa81f977d4
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:579:13
[INFO] [stderr]     12:     0x559a68e30bac - std::sys_common::backtrace::__rust_end_short_backtrace::hac58659f7b10831b
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/sys_common/backtrace.rs:137:18
[INFO] [stderr]     13:     0x559a68e31d82 - rust_begin_unwind
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:575:5
[INFO] [stderr]     14:     0x559a68e0a083 - core::panicking::panic_fmt::h2c4ecf0ce6f140fe
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/panicking.rs:65:14
[INFO] [stderr]     15:     0x559a68e4c991 - core::panicking::panic_display::he84e60b640a548c2
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/panicking.rs:139:5
[INFO] [stderr]     16:     0x559a68e4c93b - core::panicking::panic_str::h57fb792ca83a5c49
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/panicking.rs:123:5
[INFO] [stderr]     17:     0x559a68e0a046 - core::option::expect_failed::hdbd6d663a1bd2d6c
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/option.rs:1876:5
[INFO] [stderr]     18:     0x559a68e140d2 - core::option::Option<T>::expect::h252cabb5a54a0878
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/option.rs:741:21
[INFO] [stderr]     19:     0x559a68e0f444 - build_script_build::main::h4599da888e6387a5
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/libc-0.2.135/build.rs:9:41
[INFO] [stderr]     20:     0x559a68e115ab - core::ops::function::FnOnce::call_once::h28528b0e21493d0f
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/ops/function.rs:251:5
[INFO] [stderr]     21:     0x559a68e13b0e - std::sys_common::backtrace::__rust_begin_short_backtrace::h4dc62637dda1eabe
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/sys_common/backtrace.rs:121:18
[INFO] [stderr]     22:     0x559a68e0c6f1 - std::rt::lang_start::{{closure}}::h8d43732b1f32ce25
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/rt.rs:166:18
[INFO] [stderr]     23:     0x559a68e2b11b - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2754d673c53fd612
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/core/src/ops/function.rs:286:13
[INFO] [stderr]     24:     0x559a68e2b11b - std::panicking::try::do_call::h3767ac031dfe4f87
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:483:40
[INFO] [stderr]     25:     0x559a68e2b11b - std::panicking::try::h01773a7de0669cb3
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:447:19
[INFO] [stderr]     26:     0x559a68e2b11b - std::panic::catch_unwind::h577f854a9573b77d
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panic.rs:137:14
[INFO] [stderr]     27:     0x559a68e2b11b - std::rt::lang_start_internal::{{closure}}::hcd0a5d831b0d892a
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/rt.rs:148:48
[INFO] [stderr]     28:     0x559a68e2b11b - std::panicking::try::do_call::hb8f741895081b6fd
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:483:40
[INFO] [stderr]     29:     0x559a68e2b11b - std::panicking::try::hb09f773cdbd4630b
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panicking.rs:447:19
[INFO] [stderr]     30:     0x559a68e2b11b - std::panic::catch_unwind::hace79670d412efdd
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/panic.rs:137:14
[INFO] [stderr]     31:     0x559a68e2b11b - std::rt::lang_start_internal::h74a9ba6d907a6856
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/rt.rs:148:20
[INFO] [stderr]     32:     0x559a68e0c6ca - std::rt::lang_start::h2198b524984ba57e
[INFO] [stderr]                                  at /rustc/51ad93974f526eaf4ede64932870490e6c96e4fd/library/std/src/rt.rs:165:17
[INFO] [stderr]     33:     0x559a68e10c11 - main
[INFO] [stderr]     34:     0x7efc16dff083 - __libc_start_main
[INFO] [stderr]     35:     0x559a68e0a3ce - _start
[INFO] [stderr]     36:                0x0 - <unknown>
[INFO] running `Command { std: "docker" "inspect" "a2e033bdccd76581e07270d43f534802c738bdf3957d2f8e3a43a04404272eb6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2e033bdccd76581e07270d43f534802c738bdf3957d2f8e3a43a04404272eb6", kill_on_drop: false }`
[INFO] [stdout] a2e033bdccd76581e07270d43f534802c738bdf3957d2f8e3a43a04404272eb6