[INFO] crate ufind 0.3.1 is already in cache
[INFO] checking ufind-0.3.1 against try#e922e6444795ab795fab1943288aee3d543699b8 for pr-66852
[INFO] extracting crate ufind 0.3.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate ufind 0.3.1 on toolchain e922e6444795ab795fab1943288aee3d543699b8
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "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-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e922e6444795ab795fab1943288aee3d543699b8" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+e922e6444795ab795fab1943288aee3d543699b8" "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] b957c06a7dfddf1a9a84d9f0286900cfdf5d0f004fd640a213fffc96e52265a6
[INFO] running `"docker" "start" "-a" "b957c06a7dfddf1a9a84d9f0286900cfdf5d0f004fd640a213fffc96e52265a6"`
[INFO] [stderr]    Compiling clap v2.33.0
[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-e0c1d7b72d497a59/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-2.33.0/src/app/parser.rs:131:25
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x559961475ef4 - backtrace::backtrace::libunwind::trace::h9f1d8738cf6f142e
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x559961475ef4 - backtrace::backtrace::trace_unsynchronized::h36d929b1b2ff5781
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.40/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x559961475ef4 - std::sys_common::backtrace::_print_fmt::hacbc333e6aeece5a
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:84
[INFO] [stderr]    3:     0x559961475ef4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hdf9238626066ab75
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x55996148f47c - core::fmt::write::h5e029752b22165fa
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1024
[INFO] [stderr]    5:     0x559961474157 - std::io::Write::write_fmt::hf6191160ed350e3f
[INFO] [stderr]                                at src/libstd/io/mod.rs:1428
[INFO] [stderr]    6:     0x559961477ede - std::sys_common::backtrace::_print::h6a8189d6f64e43ee
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x559961477ede - std::sys_common::backtrace::print::h8fb1dcbcd98a6ec2
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x559961477ede - std::panicking::default_hook::{{closure}}::h85d7bb172edc868f
[INFO] [stderr]                                at src/libstd/panicking.rs:193
[INFO] [stderr]    9:     0x559961477bd1 - std::panicking::default_hook::h4c7e437cd4a16e76
[INFO] [stderr]                                at src/libstd/panicking.rs:210
[INFO] [stderr]   10:     0x55996147850b - std::panicking::rust_panic_with_hook::h8647154d80cbed98
[INFO] [stderr]                                at src/libstd/panicking.rs:471
[INFO] [stderr]   11:     0x5599614780be - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:375
[INFO] [stderr]   12:     0x559961478000 - std::panicking::begin_panic_fmt::h1d9a70b21fb37639
[INFO] [stderr]                                at src/libstd/panicking.rs:326
[INFO] [stderr]   13:     0x55996142de70 - clap::app::parser::Parser::gen_completions::hfebd36d139f3fe7c
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/parser.rs:131
[INFO] [stderr]   14:     0x5599613f1a17 - clap::app::App::gen_completions::h5767fa6849207476
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/mod.rs:1391
[INFO] [stderr]   15:     0x5599613f188b - build_script_build::main::h30a0e9b50ad4e3bb
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:15
[INFO] [stderr]   16:     0x5599613f2690 - std::rt::lang_start::{{closure}}::h6b3bbf4350ce41c1
[INFO] [stderr]                                at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x559961477fa3 - std::rt::lang_start_internal::{{closure}}::h537a2d77f0f9eb2b
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x559961477fa3 - std::panicking::try::do_call::hac85bb9436248e0f
[INFO] [stderr]                                at src/libstd/panicking.rs:292
[INFO] [stderr]   19:     0x55996147a2ea - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:78
[INFO] [stderr]   20:     0x5599614789a0 - std::panicking::try::hfda737be6bc9b3a3
[INFO] [stderr]                                at src/libstd/panicking.rs:270
[INFO] [stderr]   21:     0x5599614789a0 - std::panic::catch_unwind::hb168c94334b21b4b
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x5599614789a0 - std::rt::lang_start_internal::h76b1fe1020874f18
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   23:     0x5599613f2669 - std::rt::lang_start::h12e2fa79275bb9ac
[INFO] [stderr]                                at /rustc/e922e6444795ab795fab1943288aee3d543699b8/src/libstd/rt.rs:67
[INFO] [stderr]   24:     0x5599613f197a - main
[INFO] [stderr]   25:     0x7ff5b3467b97 - __libc_start_main
[INFO] [stderr]   26:     0x5599613f113a - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "b957c06a7dfddf1a9a84d9f0286900cfdf5d0f004fd640a213fffc96e52265a6"`
[INFO] running `"docker" "rm" "-f" "b957c06a7dfddf1a9a84d9f0286900cfdf5d0f004fd640a213fffc96e52265a6"`
[INFO] [stdout] b957c06a7dfddf1a9a84d9f0286900cfdf5d0f004fd640a213fffc96e52265a6