[INFO] cloning repository https://github.com/sbh123/wnlokv
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sbh123/wnlokv" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbh123%2Fwnlokv", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbh123%2Fwnlokv'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5aeb878812e7a57107f5a7140addd9f54b36caf4
[INFO] documenting sbh123/wnlokv against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsbh123%2Fwnlokv" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/sbh123/wnlokv on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/sbh123/wnlokv
[INFO] finished tweaking git repo https://github.com/sbh123/wnlokv
[INFO] tweaked toml for git repo https://github.com/sbh123/wnlokv written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/sbh123/wnlokv already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3196cc14b207f397e2a50dcd8279624fc5bdb2f196160483e9668fd8620e5565
[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" "3196cc14b207f397e2a50dcd8279624fc5bdb2f196160483e9668fd8620e5565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3196cc14b207f397e2a50dcd8279624fc5bdb2f196160483e9668fd8620e5565", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3196cc14b207f397e2a50dcd8279624fc5bdb2f196160483e9668fd8620e5565", kill_on_drop: false }`
[INFO] [stdout] 3196cc14b207f397e2a50dcd8279624fc5bdb2f196160483e9668fd8620e5565
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d897ea3730de145c6451bd9230c7c368c16fc556fc0f703fa15790e2e6cb1db5
[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" "d897ea3730de145c6451bd9230c7c368c16fc556fc0f703fa15790e2e6cb1db5", kill_on_drop: false }`
[INFO] [stderr]    Compiling nodrop v0.1.13
[INFO] [stderr]    Compiling lazy_static v1.2.0
[INFO] [stderr]    Compiling protobuf v2.0.5
[INFO] [stderr]    Compiling byteorder v1.2.7
[INFO] [stderr]    Compiling rustc-demangle v0.1.9
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]    Compiling crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling rand_xorshift v0.1.0
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling serde v1.0.80
[INFO] [stderr]    Compiling num_cpus v1.8.0
[INFO] [stderr]    Compiling protoc v2.2.0
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stderr]     Checking tokio-io v0.1.10
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]    Compiling arrayvec v0.4.8
[INFO] [stderr]     Checking tokio-threadpool v0.1.9
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]    Compiling base64 v0.5.2
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking tokio-fs v0.1.4
[INFO] [stderr]     Checking tokio-reactor v0.1.7
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]    Compiling crossbeam-deque v0.2.0
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking tokio-udp v0.1.3
[INFO] [stderr]     Checking tokio-tcp v0.1.2
[INFO] [stderr]     Checking tokio-uds v0.2.4
[INFO] [stderr]     Checking tokio v0.1.13
[INFO] [stderr]    Compiling tempfile v3.0.5
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking raft v0.4.0 (https://github.com/pingcap/raft-rs.git#40157d82)
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]    Compiling lz4-sys v1.8.0 (https://github.com/busyjay/lz4-rs.git?branch=adjust-build#41509fea)
[INFO] [stderr]    Compiling snappy-sys v0.1.0 (https://github.com/busyjay/rust-snappy.git?branch=static-link#be021783)
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling bzip2-sys v0.1.7 (https://github.com/alexcrichton/bzip2-rs.git#34265a55)
[INFO] [stderr]    Compiling grpcio-sys v0.4.1
[INFO] [stderr]    Compiling librocksdb_sys v0.1.0 (https://github.com/pingcap/rust-rocksdb.git#05aaf93f)
[INFO] [stderr]    Compiling protobuf-codegen v2.0.5
[INFO] [stderr]    Compiling blob v0.2.0
[INFO] [stderr]    Compiling zstd-sys v1.4.6+zstd.1.3.7 (https://github.com/gyscos/zstd-rs.git#15c10cc9)
[INFO] [stderr]    Compiling backtrace v0.3.9
[INFO] [stderr]    Compiling failure v0.1.3
[INFO] [stderr]    Compiling grpcio-compiler v0.4.1
[INFO] [stderr]    Compiling protoc-grpcio v0.3.1 (https://github.com/mtp401/protoc-grpcio#c31fd1dd)
[INFO] [stderr]    Compiling testrpc v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `testrpc v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/testrpc-16f99eda23deacc7/build-script-build` (exit code: 101)
[INFO] [stderr]   --- stderr
[INFO] [stderr]   thread 'main' panicked at 'Fail to compile gRpc: Os { code: 30, kind: Other, message: "Read-only file system" }
[INFO] [stderr] 
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x562cbb7992f3 - backtrace::backtrace::libunwind::trace::hb7653efa282afbc8
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/libunwind.rs:53
[INFO] [stderr]                            - backtrace::backtrace::trace::ha0301d03a9144430
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/backtrace/mod.rs:42
[INFO] [stderr]      1:     0x562cbb793763 - backtrace::capture::Backtrace::new_unresolved::h0c3ea4b1d8d9ca56
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.9/src/capture.rs:88
[INFO] [stderr]      2:     0x562cbb7927a5 - failure::backtrace::internal::InternalBacktrace::new::hbca875ef85e59708
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/internal.rs:44
[INFO] [stderr]      3:     0x562cbb79121c - failure::backtrace::Backtrace::new::h18480eadebf6d6f4
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/backtrace/mod.rs:111
[INFO] [stderr]      4:     0x562cbb74907b - <failure::error::error_impl::ErrorImpl as core::convert::From<F>>::from::hc332d694b601b6b3
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/error_impl.rs:19
[INFO] [stderr]      5:     0x562cbb74b23e - <failure::error::Error as core::convert::From<F>>::from::hc89430fd5c39376b
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/error/mod.rs:36
[INFO] [stderr]      6:     0x562cbb74a62e - <T as core::convert::Into<U>>::into::h365c39c4eb3222d3
[INFO] [stderr]                           at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libcore/convert/mod.rs:560
[INFO] [stderr]      7:     0x562cbb7414bd - failure::context::Context<D>::with_err::h8d6793041b0b32ed
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/context.rs:105
[INFO] [stderr]      8:     0x562cbb74a805 - failure::Fail::context::h0a4017631f05590e
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/lib.rs:153
[INFO] [stderr]      9:     0x562cbb74b9b5 - <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::{{closure}}::he59fca6f0dcf2dc5
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/result_ext.rs:164
[INFO] [stderr]     10:     0x562cbb747081 - core::result::Result<T,E>::map_err::hd8eda381f4f0f5ee
[INFO] [stderr]                           at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libcore/result.rs:612
[INFO] [stderr]     11:     0x562cbb7477fd - <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::h1e13da303956f88c
[INFO] [stderr]                           at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.3/src/result_ext.rs:164
[INFO] [stderr]     12:     0x562cbb73dc57 - protoc_grpcio::write_out_generated_files::h0939c8ee339447d8
[INFO] [stderr]                           at /opt/rustwide/cargo-home/git/checkouts/protoc-grpcio-6130ca0c3a6416fd/c31fd1d/src/lib.rs:91
[INFO] [stderr]     13:     0x562cbb73d1e7 - protoc_grpcio::compile_grpc_protos::h503a58f3aa33b9ba
[INFO] [stderr]                           at /opt/rustwide/cargo-home/git/checkouts/protoc-grpcio-6130ca0c3a6416fd/c31fd1d/src/lib.rs:257
[INFO] [stderr]     14:     0x562cbb743562 - build_script_build::main::h07f28229f19832a8
[INFO] [stderr]                           at /opt/rustwide/workdir/build.rs:6
[INFO] [stderr]     15:     0x562cbb74a9aa - std::rt::lang_start::{{closure}}::hafe90c5cddd86e71
[INFO] [stderr]                           at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67
[INFO] [stderr]     16:     0x562cbb9eda62 - std::rt::lang_start_internal::{{closure}}::h5d3ea623498f5f43
[INFO] [stderr]                           at src/libstd/rt.rs:52
[INFO] [stderr]                            - std::panicking::try::do_call::hac65e71be769a440
[INFO] [stderr]                           at src/libstd/panicking.rs:348
[INFO] [stderr]                            - std::panicking::try::hd4706e264bcf6712
[INFO] [stderr]                           at src/libstd/panicking.rs:325
[INFO] [stderr]                            - std::panic::catch_unwind::h948a0fb4a8b3ee82
[INFO] [stderr]                           at src/libstd/panic.rs:394
[INFO] [stderr]                            - std::rt::lang_start_internal::h72cc068ed2d0ac53
[INFO] [stderr]                           at src/libstd/rt.rs:51
[INFO] [stderr]     17:     0x562cbb74a986 - std::rt::lang_start::h20b893ba5dd82aaf
[INFO] [stderr]                           at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67
[INFO] [stderr]     18:     0x562cbb7435d9 - main
[INFO] [stderr]     19:     0x7fd9df6be0b2 - __libc_start_main
[INFO] [stderr]     20:     0x562cbb7381bd - _start
[INFO] [stderr]     21:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr]   failed to create "protos/raftpb_grpc.rs"
[INFO] [stderr] 
[INFO] [stderr]   failed to write generated grpc definitions', build.rs:9:22
[INFO] [stderr]   stack backtrace:
[INFO] [stderr]      0:     0x562cbb9eabe5 - backtrace::backtrace::libunwind::trace::h14d338b30b3ea0a7
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x562cbb9eabe5 - backtrace::backtrace::trace_unsynchronized::h73ea91d74a3fd67f
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x562cbb9eabe5 - std::sys_common::backtrace::_print_fmt::hd42948c952866e12
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x562cbb9eabe5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::ha8f928866ff7571e
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x562cbba1424c - core::fmt::write::he0c1e5f7426d2718
[INFO] [stderr]                                  at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]      5:     0x562cbb9e81d2 - std::io::Write::write_fmt::hf3afc6cfd57d0033
[INFO] [stderr]                                  at src/libstd/io/mod.rs:1537
[INFO] [stderr]      6:     0x562cbb9ed050 - std::sys_common::backtrace::_print::hfc0110703f3696fd
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x562cbb9ed050 - std::sys_common::backtrace::print::h3f77c6990ddfaa22
[INFO] [stderr]                                  at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x562cbb9ed050 - std::panicking::default_hook::{{closure}}::heae49580a8d62d75
[INFO] [stderr]                                  at src/libstd/panicking.rs:198
[INFO] [stderr]      9:     0x562cbb9ecd9c - std::panicking::default_hook::hecc34e3f729e213c
[INFO] [stderr]                                  at src/libstd/panicking.rs:217
[INFO] [stderr]     10:     0x562cbb9ed693 - std::panicking::rust_panic_with_hook::he82f5d0644692441
[INFO] [stderr]                                  at src/libstd/panicking.rs:526
[INFO] [stderr]     11:     0x562cbb9ed28b - rust_begin_unwind
[INFO] [stderr]                                  at src/libstd/panicking.rs:437
[INFO] [stderr]     12:     0x562cbba121b1 - core::panicking::panic_fmt::h09c929f06bb87c98
[INFO] [stderr]                                  at src/libcore/panicking.rs:85
[INFO] [stderr]     13:     0x562cbba11fd3 - core::option::expect_none_failed::h188f17af6c9f404b
[INFO] [stderr]                                  at src/libcore/option.rs:1269
[INFO] [stderr]     14:     0x562cbb746ad6 - core::result::Result<T,E>::expect::h01bc3095af11a0d8
[INFO] [stderr]                                  at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libcore/result.rs:963
[INFO] [stderr]     15:     0x562cbb74359d - build_script_build::main::h07f28229f19832a8
[INFO] [stderr]                                  at /opt/rustwide/workdir/build.rs:6
[INFO] [stderr]     16:     0x562cbb74a9ab - std::rt::lang_start::{{closure}}::hafe90c5cddd86e71
[INFO] [stderr]                                  at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67
[INFO] [stderr]     17:     0x562cbb9eda63 - std::rt::lang_start_internal::{{closure}}::h5d3ea623498f5f43
[INFO] [stderr]                                  at src/libstd/rt.rs:52
[INFO] [stderr]     18:     0x562cbb9eda63 - std::panicking::try::do_call::hac65e71be769a440
[INFO] [stderr]                                  at src/libstd/panicking.rs:348
[INFO] [stderr]     19:     0x562cbb9eda63 - std::panicking::try::hd4706e264bcf6712
[INFO] [stderr]                                  at src/libstd/panicking.rs:325
[INFO] [stderr]     20:     0x562cbb9eda63 - std::panic::catch_unwind::h948a0fb4a8b3ee82
[INFO] [stderr]                                  at src/libstd/panic.rs:394
[INFO] [stderr]     21:     0x562cbb9eda63 - std::rt::lang_start_internal::h72cc068ed2d0ac53
[INFO] [stderr]                                  at src/libstd/rt.rs:51
[INFO] [stderr]     22:     0x562cbb74a987 - std::rt::lang_start::h20b893ba5dd82aaf
[INFO] [stderr]                                  at /rustc/04488afe34512aa4c33566eb16d8c912a3ae04f9/src/libstd/rt.rs:67
[INFO] [stderr]     23:     0x562cbb7435da - main
[INFO] [stderr]     24:     0x7fd9df6be0b3 - __libc_start_main
[INFO] [stderr]     25:     0x562cbb7381be - _start
[INFO] [stderr]     26:                0x0 - <unknown>
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "d897ea3730de145c6451bd9230c7c368c16fc556fc0f703fa15790e2e6cb1db5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d897ea3730de145c6451bd9230c7c368c16fc556fc0f703fa15790e2e6cb1db5", kill_on_drop: false }`
[INFO] [stdout] d897ea3730de145c6451bd9230c7c368c16fc556fc0f703fa15790e2e6cb1db5