[INFO] cloning repository https://github.com/volution/volution-md5-tools
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/volution/volution-md5-tools" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolution%2Fvolution-md5-tools", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolution%2Fvolution-md5-tools'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b678612ad5b17b2bededc7fa300e8e7571b3b410
[INFO] documenting volution/volution-md5-tools against 1.47.0 for beta-1.48-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fvolution%2Fvolution-md5-tools" "/workspace/builds/worker-13/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-13/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/volution/volution-md5-tools on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/volution/volution-md5-tools
[INFO] finished tweaking git repo https://github.com/volution/volution-md5-tools
[INFO] tweaked toml for git repo https://github.com/volution/volution-md5-tools written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] crate git repo https://github.com/volution/volution-md5-tools already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 97b285ff4d692700d588062a54db0efcb3558e2f9d594bc5e77c120c5625f077
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "97b285ff4d692700d588062a54db0efcb3558e2f9d594bc5e77c120c5625f077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "97b285ff4d692700d588062a54db0efcb3558e2f9d594bc5e77c120c5625f077", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97b285ff4d692700d588062a54db0efcb3558e2f9d594bc5e77c120c5625f077", kill_on_drop: false }`
[INFO] [stdout] 97b285ff4d692700d588062a54db0efcb3558e2f9d594bc5e77c120c5625f077
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 94490ecb7b133262ee39e4ec7d9ed526c7d0eabe73f0b0d1621b45fc4d69c7c6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "94490ecb7b133262ee39e4ec7d9ed526c7d0eabe73f0b0d1621b45fc4d69c7c6", kill_on_drop: false }`
[INFO] [stderr]     Checking cpio v0.2.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]     Checking clicolors-control v1.0.1
[INFO] [stderr]     Checking termios v0.3.1
[INFO] [stderr]     Checking block-buffer v0.7.3
[INFO] [stderr]     Checking crossbeam v0.7.2
[INFO] [stderr]     Checking console v0.9.0
[INFO] [stderr]     Checking sha-1 v0.8.1
[INFO] [stderr]     Checking sha3 v0.8.2
[INFO] [stderr]     Checking sha2 v0.8.0
[INFO] [stderr]     Checking md-5 v0.8.0
[INFO] [stderr]     Checking indicatif v0.12.0
[INFO] [stderr]     Checking num-integer v0.1.41
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking md5-tools v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting md5-tools v0.0.0 (/opt/rustwide/workdir)
[INFO] [stderr] thread 'rustc' panicked at 'Unable to resolve external crate argparse', src/librustdoc/core.rs:446:37
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x7f401e754540 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stderr]    1:     0x7f401e754540 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x7f401e754540 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stderr]    3:     0x7f401e754540 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stderr]    4:     0x7f401e7c2f4c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stderr]    5:     0x7f401e746867 - std::io::Write::write_fmt::h1d2ee292d2b65481
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stderr]    6:     0x7f401e759200 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stderr]    7:     0x7f401e759200 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stderr]    8:     0x7f401e759200 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stderr]    9:     0x7f401e758f4c - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:219
[INFO] [stderr]   10:     0x7f401f3b8e59 - rustc_driver::report_ice::h5dabcbd2624000fb
[INFO] [stderr]   11:     0x7f401e7599a8 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:573
[INFO] [stderr]   12:     0x7f401e759559 - std::panicking::begin_panic_handler::{{closure}}::h7001af1bb21aeaeb
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:476
[INFO] [stderr]   13:     0x7f401e7549cc - std::sys_common::backtrace::__rust_end_short_backtrace::h39910f557f5f2367
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stderr]   14:     0x7f401e759519 - rust_begin_unwind
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:475
[INFO] [stderr]   15:     0x7f401e7594cb - std::panicking::begin_panic_fmt::hc1b1320af38b7e12
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:429
[INFO] [stderr]   16:     0x561f89509c88 - rustdoc::core::run_core::{{closure}}::{{closure}}::{{closure}}::{{closure}}::{{closure}}::h1ebc38284ef705b8
[INFO] [stderr]   17:     0x561f894d6e56 - rustc_interface::passes::BoxedResolver::access::{{closure}}::h9a5e91214ca12aa7
[INFO] [stderr]   18:     0x7f401f6ef71b - rustc_interface::passes::configure_and_expand::{{closure}}::ha14289f0b140cfdb
[INFO] [stderr]   19:     0x561f89690c4f - rustc_interface::queries::<impl rustc_interface::interface::Compiler>::enter::ha6482ca824b668c6
[INFO] [stderr]   20:     0x561f896f38c3 - rustc_span::with_source_map::h883b66e508c70e6a
[INFO] [stderr]   21:     0x561f89692362 - rustc_interface::interface::create_compiler_and_run::h6264588ff01032d1
[INFO] [stderr]   22:     0x561f8953054e - rustdoc::core::run_core::h47e43a8d641d463e
[INFO] [stderr]   23:     0x561f894d02f1 - rustdoc::main_options::h88da0f9777ad5f0a
[INFO] [stderr]   24:     0x561f896848c4 - scoped_tls::ScopedKey<T>::set::hbf30c440e478f53c
[INFO] [stderr]   25:     0x561f8955ee17 - std::sys_common::backtrace::__rust_begin_short_backtrace::h8e06ec42ce22a1ff
[INFO] [stderr]   26:     0x561f8970861e - core::ops::function::FnOnce::call_once{{vtable.shim}}::h68c91e83f99caa93
[INFO] [stderr]   27:     0x7f401e768f5a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   28:     0x7f401e768f5a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stderr]   29:     0x7f401e768f5a - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stderr]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stderr]   30:     0x7f401e686609 - start_thread
[INFO] [stderr]   31:     0x7f401e441103 - clone
[INFO] [stderr]   32:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] error: internal compiler error: unexpected panic
[INFO] [stderr] 
[INFO] [stderr] error: Unrecognized option: 'document-private-items'
[INFO] [stderr] 
[INFO] [stderr] error: Could not document `md5-tools`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name md5_tools sources/lib/lib.rs -o /opt/rustwide/target/doc --cfg 'feature="default"' --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern argparse=/opt/rustwide/target/debug/deps/libargparse-3d2ca6a53877de27.rmeta --extern atty=/opt/rustwide/target/debug/deps/libatty-ff1756d598131adb.rmeta --extern chrono=/opt/rustwide/target/debug/deps/libchrono-422c5164ee84bd0f.rmeta --extern cpio=/opt/rustwide/target/debug/deps/libcpio-209f52db0896d597.rmeta --extern crossbeam=/opt/rustwide/target/debug/deps/libcrossbeam-24a61cab9d0a9932.rmeta --extern digest=/opt/rustwide/target/debug/deps/libdigest-0f8130cfbb8fc146.rmeta --extern indicatif=/opt/rustwide/target/debug/deps/libindicatif-12fb363b60fdbba5.rmeta --extern libc=/opt/rustwide/target/debug/deps/liblibc-3b39444b120b43e8.rmeta --extern md5=/opt/rustwide/target/debug/deps/libmd5-8aa84ff55c9686e2.rmeta --extern regex=/opt/rustwide/target/debug/deps/libregex-ba4a27fd61713b6f.rmeta --extern sha1=/opt/rustwide/target/debug/deps/libsha1-9aa4cff5ff89c151.rmeta --extern sha2=/opt/rustwide/target/debug/deps/libsha2-41ec02bef05a6b87.rmeta --extern sha3=/opt/rustwide/target/debug/deps/libsha3-d4eb516c551a326f.rmeta --extern walkdir=/opt/rustwide/target/debug/deps/libwalkdir-3f722943b35546d8.rmeta --cap-lints=warn --crate-version 0.0.0` (exit code: 1)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "94490ecb7b133262ee39e4ec7d9ed526c7d0eabe73f0b0d1621b45fc4d69c7c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "94490ecb7b133262ee39e4ec7d9ed526c7d0eabe73f0b0d1621b45fc4d69c7c6", kill_on_drop: false }`
[INFO] [stdout] 94490ecb7b133262ee39e4ec7d9ed526c7d0eabe73f0b0d1621b45fc4d69c7c6
