[INFO] cloning repository https://github.com/blargg/unicode_util
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/blargg/unicode_util" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblargg%2Funicode_util", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblargg%2Funicode_util'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] dea95c005e327ffe56f69b8e0720540712dcad62
[INFO] documenting blargg/unicode_util against 1.54.0 for beta-1.55-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fblargg%2Funicode_util" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/blargg/unicode_util on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/blargg/unicode_util
[INFO] finished tweaking git repo https://github.com/blargg/unicode_util
[INFO] tweaked toml for git repo https://github.com/blargg/unicode_util written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/blargg/unicode_util already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 730173204d448cc93fb424c6fc276595094efc0032fb86154f96c19220c8cb38
[INFO] running `Command { std: "docker" "start" "-a" "730173204d448cc93fb424c6fc276595094efc0032fb86154f96c19220c8cb38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "730173204d448cc93fb424c6fc276595094efc0032fb86154f96c19220c8cb38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "730173204d448cc93fb424c6fc276595094efc0032fb86154f96c19220c8cb38", kill_on_drop: false }`
[INFO] [stdout] 730173204d448cc93fb424c6fc276595094efc0032fb86154f96c19220c8cb38
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a2bc88f8133cedf5066f3164ff11649399e41d217639ac36cc2d412c722fb0a
[INFO] running `Command { std: "docker" "start" "-a" "8a2bc88f8133cedf5066f3164ff11649399e41d217639ac36cc2d412c722fb0a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v0.1.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.5
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling fnv v1.0.6
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling serde v1.0.101
[INFO] [stderr]     Checking arc-swap v0.4.3
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling xml-rs v0.8.0
[INFO] [stderr]     Checking numtoa v0.1.0
[INFO] [stderr]     Checking array-macro v1.0.4
[INFO] [stderr]     Checking xi-unicode v0.2.0
[INFO] [stderr]     Checking utf8-ranges v1.0.4
[INFO] [stderr]     Checking unicode-segmentation v1.3.0
[INFO] [stderr]     Checking hashbrown v0.5.0
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking memmap v0.6.2
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking crossbeam-channel v0.3.9
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking fst v0.3.5
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking termion v1.5.3
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking signal-hook-registry v1.1.1
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking signal-hook v0.1.10
[INFO] [stderr]     Checking fst-regex v0.2.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]    Compiling unicode_util v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr] error: failed to run custom build command for `unicode_util v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/unicode_util-5eba8b464405010a/build-script-build` (exit status: 101)
[INFO] [stderr]   --- stdout
[INFO] [stderr]   cargo:rerun-if-changed=build.rs
[INFO] [stderr]   data.tmp/ucd.all.flat.zip is not cached, downloading
[INFO] [stderr]   curl command: "curl" "-vs" "-odata.tmp/ucd.all.flat.zip" "--create-dirs" "http://www.unicode.org/Public/12.1.0/ucdxml/ucd.all.flat.zip"
[INFO] [stderr] 
[INFO] [stderr]   --- stderr
[INFO] [stderr]   data.tmp resides on a read-only file system.
[INFO] [stderr]   thread 'main' panicked at 'curl exited with a non zero status', build.rs:66:9
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x555d31240190 - std::backtrace_rs::backtrace::libunwind::trace::h34055254b57d8e79
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/libunwind.rs:90:5
[INFO] [stderr]      1:     0x555d31240190 - std::backtrace_rs::backtrace::trace_unsynchronized::h8f1e3fbd9afff6ec
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/../../backtrace/src/backtrace/mod.rs:66:5
[INFO] [stderr]      2:     0x555d31240190 - std::sys_common::backtrace::_print_fmt::h3a99a796b770c360
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:67:5
[INFO] [stderr]      3:     0x555d31240190 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h32d1f94a80615d18
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:46:22
[INFO] [stderr]      4:     0x555d3125dbbc - core::fmt::write::h306731c068f7162c
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/fmt/mod.rs:1110:17
[INFO] [stderr]      5:     0x555d3123e515 - std::io::Write::write_fmt::hd2fa90334eee2a21
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/io/mod.rs:1588:15
[INFO] [stderr]      6:     0x555d31241e0b - std::sys_common::backtrace::_print::h5abaa2601a852287
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:49:5
[INFO] [stderr]      7:     0x555d31241e0b - std::sys_common::backtrace::print::h8d81445442bb638f
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:36:9
[INFO] [stderr]      8:     0x555d31241e0b - std::panicking::default_hook::{{closure}}::hcfe804496a9fa747
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:208:50
[INFO] [stderr]      9:     0x555d312418e1 - std::panicking::default_hook::hbea8e3ccf2ba8901
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:225:9
[INFO] [stderr]     10:     0x555d312424d4 - std::panicking::rust_panic_with_hook::h7ee9e1a2d0f8975a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:622:17
[INFO] [stderr]     11:     0x555d3122b3f3 - std::panicking::begin_panic::{{closure}}::h19eb722c086eefae
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:542:9
[INFO] [stderr]     12:     0x555d3122b5c9 - std::sys_common::backtrace::__rust_end_short_backtrace::h99d1b25d5b373be6
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:141:18
[INFO] [stderr]     13:     0x555d3122b329 - std::panicking::begin_panic::h95ef208cee33ab93
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:541:12
[INFO] [stderr]     14:     0x555d311dc44e - build_script_build::download_ucd_all::hc81e6a7bd85139e6
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:66:9
[INFO] [stderr]     15:     0x555d311db86f - build_script_build::main::hdb265d00e7616495
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:19:9
[INFO] [stderr]     16:     0x555d311cf29b - core::ops::function::FnOnce::call_once::h64b484021eab949e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:227:5
[INFO] [stderr]     17:     0x555d311d98ce - std::sys_common::backtrace::__rust_begin_short_backtrace::he42be16c22c61701
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/sys_common/backtrace.rs:125:18
[INFO] [stderr]     18:     0x555d311ceaf1 - std::rt::lang_start::{{closure}}::h1ad3b06e84a2570e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:49:18
[INFO] [stderr]     19:     0x555d312429d9 - core::ops::function::impls::<impl core::ops::function::FnOnce<A> for &F>::call_once::h2aabc384aab89b7b
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/core/src/ops/function.rs:259:13
[INFO] [stderr]     20:     0x555d312429d9 - std::panicking::try::do_call::hc5fcacb7a85fc7b1
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:401:40
[INFO] [stderr]     21:     0x555d312429d9 - std::panicking::try::hb5d9603af3abbe3a
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panicking.rs:365:19
[INFO] [stderr]     22:     0x555d312429d9 - std::panic::catch_unwind::h98fe6ac3925e64b4
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/panic.rs:434:14
[INFO] [stderr]     23:     0x555d312429d9 - std::rt::lang_start_internal::h22ac7383c516f93e
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:34:21
[INFO] [stderr]     24:     0x555d311cead0 - std::rt::lang_start::hcbc994e6f382738d
[INFO] [stderr]                                  at /rustc/a178d0322ce20e33eac124758e837cbd80a6f633/library/std/src/rt.rs:48:5
[INFO] [stderr]     25:     0x555d311dd30c - main
[INFO] [stderr]     26:     0x7ff9fd0e10b3 - __libc_start_main
[INFO] [stderr]     27:     0x555d311c4a6e - _start
[INFO] [stderr]     28:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8a2bc88f8133cedf5066f3164ff11649399e41d217639ac36cc2d412c722fb0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a2bc88f8133cedf5066f3164ff11649399e41d217639ac36cc2d412c722fb0a", kill_on_drop: false }`
[INFO] [stdout] 8a2bc88f8133cedf5066f3164ff11649399e41d217639ac36cc2d412c722fb0a
