[INFO] fetching crate ufind 0.3.1...
[INFO] checking ufind-0.3.1 against try#4662032ab74cd44d423120d08d251dfead4914a0 for pr-72788
[INFO] extracting crate ufind 0.3.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate ufind 0.3.1 on toolchain 4662032ab74cd44d423120d08d251dfead4914a0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "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-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+4662032ab74cd44d423120d08d251dfead4914a0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+4662032ab74cd44d423120d08d251dfead4914a0" "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] cd1f8592fa1869bd3ef80c1a479736f57b45ea4e2925f51feac0057b8ccc416f
[INFO] running `"docker" "start" "-a" "cd1f8592fa1869bd3ef80c1a479736f57b45ea4e2925f51feac0057b8ccc416f"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling libc v0.2.71
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]    Compiling atty v0.2.14
[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:     0x56371ca59755 - 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:     0x56371ca59755 - 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:     0x56371ca59755 - std::sys_common::backtrace::_print_fmt::h520f528c4c103a3f
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x56371ca59755 - <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:     0x56371ca776ac - core::fmt::write::hdf236390fbd68d3d
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x56371ca57813 - std::io::Write::write_fmt::hd33447f61d92a88a
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x56371ca5bc60 - std::sys_common::backtrace::_print::h856c809943c588ab
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x56371ca5bc60 - std::sys_common::backtrace::print::hc042b4237cc3648a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x56371ca5bc60 - std::panicking::default_hook::{{closure}}::h35997132c163f935
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x56371ca5b9ac - std::panicking::default_hook::h8555bf398b0f1318
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x56371ca5c247 - std::panicking::rust_panic_with_hook::h9b80e82887819c44
[INFO] [stderr]                                at src/libstd/panicking.rs:486
[INFO] [stderr]   11:     0x56371ca5be4b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   12:     0x56371ca5bdbb - std::panicking::begin_panic_fmt::ha3a705fe707278db
[INFO] [stderr]                                at src/libstd/panicking.rs:342
[INFO] [stderr]   13:     0x56371c9eab56 - 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:     0x56371c9e99cc - 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:     0x56371c9e9851 - build_script_build::main::hbb35f630cacb8b44
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:15
[INFO] [stderr]   16:     0x56371c9e9dab - std::rt::lang_start::{{closure}}::hb1e35b73be68ce25
[INFO] [stderr]                                at /rustc/4662032ab74cd44d423120d08d251dfead4914a0/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x56371ca5c618 - std::rt::lang_start_internal::{{closure}}::h4c8bd631e3dc2cb9
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x56371ca5c618 - std::panicking::try::do_call::h88ce8513ed0d613c
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   19:     0x56371ca5c618 - std::panicking::try::he181ad9c483671e2
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x56371ca5c618 - std::panic::catch_unwind::heb113c382f4c732f
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x56371ca5c618 - std::rt::lang_start_internal::h807304d390ed60ab
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x56371c9e9d87 - std::rt::lang_start::hbc0fa47a415b2174
[INFO] [stderr]                                at /rustc/4662032ab74cd44d423120d08d251dfead4914a0/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x56371c9e992a - main
[INFO] [stderr]   24:     0x7fc69720e0b3 - __libc_start_main
[INFO] [stderr]   25:     0x56371c9e818e - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "cd1f8592fa1869bd3ef80c1a479736f57b45ea4e2925f51feac0057b8ccc416f"`
[INFO] running `"docker" "rm" "-f" "cd1f8592fa1869bd3ef80c1a479736f57b45ea4e2925f51feac0057b8ccc416f"`
[INFO] [stdout] cd1f8592fa1869bd3ef80c1a479736f57b45ea4e2925f51feac0057b8ccc416f