[INFO] updating cached repository https://github.com/cynomys/cyno
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec86bde0a7f677762c2999ac2a8b92d24234af0c
[INFO] documenting cynomys/cyno against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynomys%2Fcyno" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/cynomys/cyno on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/cynomys/cyno
[INFO] finished tweaking git repo https://github.com/cynomys/cyno
[INFO] tweaked toml for git repo https://github.com/cynomys/cyno written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/cynomys/cyno already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7083c55daca0622af16f9ca11bba7ea29dc18b9df5380a02992cfb855b4b5e2
[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" "f7083c55daca0622af16f9ca11bba7ea29dc18b9df5380a02992cfb855b4b5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7083c55daca0622af16f9ca11bba7ea29dc18b9df5380a02992cfb855b4b5e2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7083c55daca0622af16f9ca11bba7ea29dc18b9df5380a02992cfb855b4b5e2", kill_on_drop: false }`
[INFO] [stdout] f7083c55daca0622af16f9ca11bba7ea29dc18b9df5380a02992cfb855b4b5e2
[INFO] running `Command { std: "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" "RUSTDOCFLAGS=--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@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 351d2cde9e4f982ee7932dc9510ff8b83e6731728cc8e14c33229b18259e1d1c
[INFO] running `Command { std: "docker" "start" "-a" "351d2cde9e4f982ee7932dc9510ff8b83e6731728cc8e14c33229b18259e1d1c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling cc v1.0.29
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling protobuf v2.3.0
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling typenum v1.10.0
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]    Compiling regex v1.1.0
[INFO] [stderr]    Compiling matrixmultiply v0.1.15
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]    Compiling bio v0.25.0
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]    Compiling bv v0.10.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking bit-set v0.5.0
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling protoc v2.3.0
[INFO] [stderr]     Checking rand_xorshift v0.1.1
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]     Checking num-complex v0.2.1
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking ndarray v0.12.1
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling rand_os v0.1.2
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking rayon-core v1.4.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling grpcio-sys v0.4.4
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]     Checking rayon v1.0.3
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking statrs v0.9.0
[INFO] [stderr]     Checking blake2 v0.8.0
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling protobuf-codegen v2.3.0
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[INFO] [stderr]    Compiling grpcio-compiler v0.4.3
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling protoc-grpcio v1.0.1
[INFO] [stderr]    Compiling dgraph v0.1.2
[INFO] [stderr] error: failed to run custom build command for `dgraph v0.1.2`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/dgraph-a2a1300945d54b01/build-script-build` (exit code: 101)
[INFO] [stderr] --- stdout
[INFO] [stderr] cargo:rerun-if-changed=src/protos
[INFO] [stderr] 
[INFO] [stderr] --- stderr
[INFO] [stderr] thread 'main' panicked at 'Failed to compile gRPC definitions!: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr] 
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0: failure::backtrace::internal::InternalBacktrace::new::h53bdb855507b1f8e (0x5614b6f2af45)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/internal.rs:44
[INFO] [stderr]    1: failure::backtrace::Backtrace::new::h42ec9975af2213da (0x5614b6f29a8d)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/backtrace/mod.rs:111
[INFO] [stderr]    2: <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::h91aff8e4c136e253 (0x5614b6ee2c4b)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/error_impl.rs:19
[INFO] [stderr]    3: <failure::error::Error as core::convert::From<F>>::from::h1edc56d8187fb27f (0x5614b6ee4ffe)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/error/mod.rs:36
[INFO] [stderr]    4: <T as core::convert::Into<U>>::into::h7e66d5348cedbe88 (0x5614b6ee3b3e)
[INFO] [stderr]              at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libcore/convert/mod.rs:560
[INFO] [stderr]    5: failure::context::Context<D>::with_err::h3ad26e9e021876ca (0x5614b6ed8f5d)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/context.rs:105
[INFO] [stderr]    6: failure::Fail::context::h6d8ef2026169e073 (0x5614b6ee3e55)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/lib.rs:160
[INFO] [stderr]    7: <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::{{closure}}::hd4b65aae8e1ef93c (0x5614b6ee5405)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/result_ext.rs:164
[INFO] [stderr]    8: core::result::Result<T,E>::map_err::h318833fe9a354106 (0x5614b6edf501)
[INFO] [stderr]              at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libcore/result.rs:612
[INFO] [stderr]    9: <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::he9ebadb84d32876b (0x5614b6ee00cd)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.5/src/result_ext.rs:164
[INFO] [stderr]   10: protoc_grpcio::write_out_generated_files::h10a559731b599e5d (0x5614b6ed5e7d)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protoc-grpcio-1.0.1/src/lib.rs:91
[INFO] [stderr]   11: protoc_grpcio::compile_grpc_protos::h5e503d20a7b60dc2 (0x5614b6ed52fd)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protoc-grpcio-1.0.1/src/lib.rs:260
[INFO] [stderr]   12: build_script_build::main::h8c421c7204e9b0c7 (0x5614b6eda1d0)
[INFO] [stderr]              at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dgraph-0.1.2/build.rs:7
[INFO] [stderr]   13: std::rt::lang_start::{{closure}}::h827bc468b8e21659 (0x5614b6ee4aba)
[INFO] [stderr]              at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libstd/rt.rs:67
[INFO] [stderr]   14: std::rt::lang_start_internal::{{closure}}::h7cea099ad4edf1eb (0x5614b718f617)
[INFO] [stderr]              at src/libstd/rt.rs:52
[INFO] [stderr]       std::panicking::try::do_call::h42d93372c44025d2
[INFO] [stderr]              at src/libstd/panicking.rs:342
[INFO] [stderr]       std::panicking::try::hb47a4182362d3341
[INFO] [stderr]              at src/libstd/panicking.rs:319
[INFO] [stderr]       std::panic::catch_unwind::h2afcfbf3125915b4
[INFO] [stderr]              at src/libstd/panic.rs:394
[INFO] [stderr]       std::rt::lang_start_internal::h4f696727fe904f48
[INFO] [stderr]              at src/libstd/rt.rs:51
[INFO] [stderr]   15: std::rt::lang_start::hcf9e860be3341974 (0x5614b6ee4a96)
[INFO] [stderr]              at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libstd/rt.rs:67
[INFO] [stderr]   16: main (0x5614b6eda249)
[INFO] [stderr]   17: __libc_start_main (0x7f2a0a4530b2)
[INFO] [stderr]   18: _start (0x5614b6ed01cd)
[INFO] [stderr]   19: <unknown> (0x0)
[INFO] [stderr] 
[INFO] [stderr] failed to create "src/protos/api_grpc.rs"
[INFO] [stderr] 
[INFO] [stderr] failed to write generated grpc definitions', /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dgraph-0.1.2/build.rs:12:7
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5614b718c5f5 - backtrace::backtrace::libunwind::trace::h34afbfad7fd770fc
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5614b718c5f5 - backtrace::backtrace::trace_unsynchronized::h460d522b1619a600
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5614b718c5f5 - std::sys_common::backtrace::_print_fmt::ha45fac10086813b4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5614b718c5f5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hde84f63fcfd0e6de
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5614b71b5b2c - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x5614b7189953 - std::io::Write::write_fmt::hc344eafd6e850b4d
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x5614b718ec00 - std::sys_common::backtrace::_print::h4db88ff15cb5d61d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5614b718ec00 - std::sys_common::backtrace::print::h5fc39e1b1f610bd3
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5614b718ec00 - std::panicking::default_hook::{{closure}}::h59e55edacb1d974a
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5614b718e94c - std::panicking::default_hook::heee4c8016dfbf328
[INFO] [stderr]                                at src/libstd/panicking.rs:217
[INFO] [stderr]   10:     0x5614b718f243 - std::panicking::rust_panic_with_hook::h8405b6301c79fb5a
[INFO] [stderr]                                at src/libstd/panicking.rs:520
[INFO] [stderr]   11:     0x5614b718ee3b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:431
[INFO] [stderr]   12:     0x5614b71b3a91 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x5614b71b38b3 - core::option::expect_none_failed::hf79bbb5ca7e09e08
[INFO] [stderr]                                at src/libcore/option.rs:1269
[INFO] [stderr]   14:     0x5614b6edf1b6 - core::result::Result<T,E>::expect::h323308bf5f27ea15
[INFO] [stderr]                                at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x5614b6eda20b - build_script_build::main::h8c421c7204e9b0c7
[INFO] [stderr]                                at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dgraph-0.1.2/build.rs:7
[INFO] [stderr]   16:     0x5614b6ee4abb - std::rt::lang_start::{{closure}}::h827bc468b8e21659
[INFO] [stderr]                                at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x5614b718f618 - std::rt::lang_start_internal::{{closure}}::h7cea099ad4edf1eb
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x5614b718f618 - std::panicking::try::do_call::h42d93372c44025d2
[INFO] [stderr]                                at src/libstd/panicking.rs:342
[INFO] [stderr]   19:     0x5614b718f618 - std::panicking::try::hb47a4182362d3341
[INFO] [stderr]                                at src/libstd/panicking.rs:319
[INFO] [stderr]   20:     0x5614b718f618 - std::panic::catch_unwind::h2afcfbf3125915b4
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x5614b718f618 - std::rt::lang_start_internal::h4f696727fe904f48
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x5614b6ee4a97 - std::rt::lang_start::hcf9e860be3341974
[INFO] [stderr]                                at /rustc/394e1b40d264aa6928811919c1124fa248e7d802/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x5614b6eda24a - main
[INFO] [stderr]   24:     0x7f2a0a4530b3 - __libc_start_main
[INFO] [stderr]   25:     0x5614b6ed01ce - _start
[INFO] [stderr]   26:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "351d2cde9e4f982ee7932dc9510ff8b83e6731728cc8e14c33229b18259e1d1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "351d2cde9e4f982ee7932dc9510ff8b83e6731728cc8e14c33229b18259e1d1c", kill_on_drop: false }`
[INFO] [stdout] 351d2cde9e4f982ee7932dc9510ff8b83e6731728cc8e14c33229b18259e1d1c