[INFO] crate ufind 0.3.1 is already in cache
[INFO] checking ufind-0.3.1 against master#fe6d05a8b32f5c66c427ca524dbcce5a7145f87e for pr-64327
[INFO] extracting crate ufind 0.3.1 into work/builds/worker-0/source
[INFO] validating manifest of crates.io crate ufind 0.3.1 on toolchain fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "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 work/builds/worker-0/source/Cargo.toml
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/cargo-home/bin/cargo" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/mnt/big/crater/work/builds/worker-0/source:/opt/rustwide/workdir:ro,Z" "-v" "/mnt/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "+fe6d05a8b32f5c66c427ca524dbcce5a7145f87e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3758482d4c290cd11a8962af66ed77d33f704633129b4653d944eb425f168e7e
[INFO] running `"docker" "start" "-a" "3758482d4c290cd11a8962af66ed77d33f704633129b4653d944eb425f168e7e"`
[INFO] [stderr]    Compiling atty v0.2.13
[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-94e480943cca809e/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:     0x563ef886b8c4 - backtrace::backtrace::libunwind::trace::h7b2a6b74301d37f0
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/libunwind.rs:88
[INFO] [stderr]    1:     0x563ef886b8c4 - backtrace::backtrace::trace_unsynchronized::h89a5cf99a9618766
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.37/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x563ef886b8c4 - std::sys_common::backtrace::_print_fmt::h33a2346af837f531
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:77
[INFO] [stderr]    3:     0x563ef886b8c4 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h4f658ab4e42d366e
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:61
[INFO] [stderr]    4:     0x563ef888528c - core::fmt::write::hd5bbaf3e01e48326
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1030
[INFO] [stderr]    5:     0x563ef8869ac7 - std::io::Write::write_fmt::h6193b508653ddcc9
[INFO] [stderr]                                at src/libstd/io/mod.rs:1412
[INFO] [stderr]    6:     0x563ef886dc45 - std::sys_common::backtrace::_print::he914b53d7a09a78d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:65
[INFO] [stderr]    7:     0x563ef886dc45 - std::sys_common::backtrace::print::h92a8cb6723718f63
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:50
[INFO] [stderr]    8:     0x563ef886dc45 - std::panicking::default_hook::{{closure}}::hf505e0d7e2ecd403
[INFO] [stderr]                                at src/libstd/panicking.rs:200
[INFO] [stderr]    9:     0x563ef886d936 - std::panicking::default_hook::hc6772d9600f23c72
[INFO] [stderr]                                at src/libstd/panicking.rs:214
[INFO] [stderr]   10:     0x563ef886e295 - std::panicking::rust_panic_with_hook::h7372d52cdbd74b87
[INFO] [stderr]                                at src/libstd/panicking.rs:477
[INFO] [stderr]   11:     0x563ef886de32 - std::panicking::continue_panic_fmt::h73b3f53425683dc6
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]   12:     0x563ef886dd8c - std::panicking::begin_panic_fmt::h3326697be50bb4cb
[INFO] [stderr]                                at src/libstd/panicking.rs:339
[INFO] [stderr]   13:     0x563ef881b385 - clap::app::parser::Parser::gen_completions::h25213dad91699799
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/parser.rs:131
[INFO] [stderr]   14:     0x563ef87d0447 - clap::app::App::gen_completions::hbf2641225dc16ca0
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.33.0/src/app/mod.rs:1391
[INFO] [stderr]   15:     0x563ef87d023b - build_script_build::main::h28a16562d7783552
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:15
[INFO] [stderr]   16:     0x563ef87d01a0 - std::rt::lang_start::{{closure}}::he92d891a68d1778e
[INFO] [stderr]                                at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64
[INFO] [stderr]   17:     0x563ef886dd13 - std::rt::lang_start_internal::{{closure}}::h9d96e46706cace5b
[INFO] [stderr]                                at src/libstd/rt.rs:49
[INFO] [stderr]   18:     0x563ef886dd13 - std::panicking::try::do_call::h35d84c71f56bf844
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   19:     0x563ef886fe0a - __rust_maybe_catch_panic
[INFO] [stderr]                                at src/libpanic_unwind/lib.rs:80
[INFO] [stderr]   20:     0x563ef886e78d - std::panicking::try::h2c16ac107e4a3736
[INFO] [stderr]                                at src/libstd/panicking.rs:275
[INFO] [stderr]   21:     0x563ef886e78d - std::panic::catch_unwind::h61680e437015f378
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   22:     0x563ef886e78d - std::rt::lang_start_internal::h9e089243f326ffce
[INFO] [stderr]                                at src/libstd/rt.rs:48
[INFO] [stderr]   23:     0x563ef87d0179 - std::rt::lang_start::h61ad29c26b96fb98
[INFO] [stderr]                                at /rustc/fe6d05a8b32f5c66c427ca524dbcce5a7145f87e/src/libstd/rt.rs:64
[INFO] [stderr]   24:     0x563ef87d032a - main
[INFO] [stderr]   25:     0x7fe5d13c0b97 - __libc_start_main
[INFO] [stderr]   26:     0x563ef87cf2fa - _start
[INFO] [stderr]   27:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] running `"docker" "inspect" "3758482d4c290cd11a8962af66ed77d33f704633129b4653d944eb425f168e7e"`
[INFO] running `"docker" "rm" "-f" "3758482d4c290cd11a8962af66ed77d33f704633129b4653d944eb425f168e7e"`
[INFO] [stdout] 3758482d4c290cd11a8962af66ed77d33f704633129b4653d944eb425f168e7e