[INFO] fetching crate ufind 0.3.1...
[INFO] checking ufind-0.3.1 against master#74e80468347471779be6060d8d7d6d04e98e467f for pr-72788
[INFO] extracting crate ufind 0.3.1 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate ufind 0.3.1 on toolchain 74e80468347471779be6060d8d7d6d04e98e467f
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate ufind 0.3.1
[INFO] finished tweaking crates.io crate ufind 0.3.1
[INFO] tweaked toml for crates.io crate ufind 0.3.1 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+74e80468347471779be6060d8d7d6d04e98e467f" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a8bcd7eaad17065fb53422c13d0e94abc7ecd6a8c62bd6af9c7f27af7453356f
[INFO] running `"docker" "start" "-a" "a8bcd7eaad17065fb53422c13d0e94abc7ecd6a8c62bd6af9c7f27af7453356f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling clap v2.33.1
[INFO] [stderr]    Compiling ufind v0.3.1 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `ufind v0.3.1 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/ufind-60271d642b184232/build-script-build` (exit code: 101)
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'couldn't create completion file: other os error', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.1/src/app/parser.rs:138:25
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55b82286b755 - backtrace::backtrace::libunwind::trace::h508d2c55eb856ef2
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x55b82286b755 - backtrace::backtrace::trace_unsynchronized::h31c9d8a0097b92f8
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x55b82286b755 - std::sys_common::backtrace::_print_fmt::h520f528c4c103a3f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55b82286b755 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf4dec5da8360bccb
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x55b8228896ac - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x55b822869813 - std::io::Write::write_fmt::hd33447f61d92a88a
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x55b82286dc60 - std::sys_common::backtrace::_print::h856c809943c588ab
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55b82286dc60 - std::sys_common::backtrace::print::hc042b4237cc3648a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55b82286dc60 - std::panicking::default_hook::{{closure}}::h35997132c163f935
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x55b82286d9ac - std::panicking::default_hook::h8555bf398b0f1318
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x55b82286e247 - std::panicking::rust_panic_with_hook::h9b80e82887819c44
[INFO] [stderr]                                at src/libstd/panicking.rs:486
[INFO] [stderr]   11:     0x55b82286de4b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   12:     0x55b82286ddbb - std::panicking::begin_panic_fmt::ha3a705fe707278db
[INFO] [stderr]                                at src/libstd/panicking.rs:342
[INFO] [stderr]   13:     0x55b8227fcb56 - clap::app::parser::Parser::gen_completions::h2c6ae26bcb2d16b8
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.1/src/app/parser.rs:138
[INFO] [stderr]   14:     0x55b8227fb9cc - clap::app::App::gen_completions::h3e3901947300e0c7
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.1/src/app/mod.rs:1400
[INFO] [stderr]   15:     0x55b8227fb851 - build_script_build::main::hbb35f630cacb8b44
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:15
[INFO] [stderr]   16:     0x55b8227fbdab - std::rt::lang_start::{{closure}}::hb1e35b73be68ce25
[INFO] [stderr]                                at /rustc/74e80468347471779be6060d8d7d6d04e98e467f/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55b82286e618 - std::rt::lang_start_internal::{{closure}}::h4c8bd631e3dc2cb9
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55b82286e618 - std::panicking::try::do_call::h88ce8513ed0d613c
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   19:     0x55b82286e618 - std::panicking::try::he181ad9c483671e2
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x55b82286e618 - std::panic::catch_unwind::heb113c382f4c732f
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x55b82286e618 - std::rt::lang_start_internal::h807304d390ed60ab
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x55b8227fbd87 - std::rt::lang_start::hbc0fa47a415b2174
[INFO] [stderr]                                at /rustc/74e80468347471779be6060d8d7d6d04e98e467f/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x55b8227fb92a - main
[INFO] [stderr]   24:     0x7f6d869630b3 - __libc_start_main
[INFO] [stderr]   25:     0x55b8227fa18e - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "a8bcd7eaad17065fb53422c13d0e94abc7ecd6a8c62bd6af9c7f27af7453356f"`
[INFO] running `"docker" "rm" "-f" "a8bcd7eaad17065fb53422c13d0e94abc7ecd6a8c62bd6af9c7f27af7453356f"`
[INFO] [stdout] a8bcd7eaad17065fb53422c13d0e94abc7ecd6a8c62bd6af9c7f27af7453356f