[INFO] updating cached repository https://github.com/GlitterIsMe/MyKVServer
[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] 211943e7e5e76f2a3ae70c22968a3c0bbe793e12
[INFO] checking GlitterIsMe/MyKVServer against master#1557fb031b272b4c5bfcc7de5df7eddc7b36a584 for pr-73166
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FGlitterIsMe%2FMyKVServer" "/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/GlitterIsMe/MyKVServer on toolchain 1557fb031b272b4c5bfcc7de5df7eddc7b36a584
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/GlitterIsMe/MyKVServer
[INFO] finished tweaking git repo https://github.com/GlitterIsMe/MyKVServer
[INFO] tweaked toml for git repo https://github.com/GlitterIsMe/MyKVServer written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/GlitterIsMe/MyKVServer already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] abcade386ee39fbe0242562946476fbba9e91f32a232c2b3c6c6912ef315f739
[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" "abcade386ee39fbe0242562946476fbba9e91f32a232c2b3c6c6912ef315f739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "abcade386ee39fbe0242562946476fbba9e91f32a232c2b3c6c6912ef315f739", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "abcade386ee39fbe0242562946476fbba9e91f32a232c2b3c6c6912ef315f739", kill_on_drop: false }`
[INFO] [stdout] abcade386ee39fbe0242562946476fbba9e91f32a232c2b3c6c6912ef315f739
[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" "MAP_USER_ID=0" "-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@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1557fb031b272b4c5bfcc7de5df7eddc7b36a584" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c778ac23c9a68790566e697f434d69117f8e1ac7b68466c3ca712a104dd3fa29
[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" "c778ac23c9a68790566e697f434d69117f8e1ac7b68466c3ca712a104dd3fa29", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.50
[INFO] [stderr]    Compiling rand_core v0.4.0
[INFO] [stderr]    Compiling protobuf v2.4.0
[INFO] [stderr]    Compiling cfg-if v0.1.7
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]    Compiling num-iter v0.1.37
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking futures v0.1.25
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling syn v0.15.29
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]    Compiling protoc v2.4.0
[INFO] [stderr]    Compiling rand_core v0.3.1
[INFO] [stderr]    Compiling rand_jitter v0.1.3
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_hc v0.1.0
[INFO] [stderr]    Compiling rand_xorshift v0.1.1
[INFO] [stderr]    Compiling rand_isaac v0.1.1
[INFO] [stderr]    Compiling grpcio-sys v0.4.4
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking stopwatch v0.0.7
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling protobuf-codegen v2.4.0
[INFO] [stderr]    Compiling failure v0.1.5
[INFO] [stderr]    Compiling grpcio-compiler v0.4.3
[INFO] [stderr]    Compiling protoc-grpcio v1.0.1
[INFO] [stderr]    Compiling kv_server v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `kv_server v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/kv_server-f6f6d66e7ea7d177/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::h5d228fefaa9b40cc (0x55dba08eff25)
[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::hd33a9bfa9a6e965a (0x55dba08eeafd)
[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::hd7347b4370650c4a (0x55dba08a78ab)
[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::he3c9c4f0e7d0c2d4 (0x55dba08aa3ae)
[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::h6624af3525d6ed35 (0x55dba08a839e)
[INFO] [stderr]              at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libcore/convert/mod.rs:560
[INFO] [stderr]    5: failure::context::Context<D>::with_err::h3b0af66d91f94451 (0x55dba089de4d)
[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::hb739ee6d60debe79 (0x55dba08a8675)
[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}}::h1ed58d871443eec4 (0x55dba089e7c5)
[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::h82c83ada64325950 (0x55dba08a3e91)
[INFO] [stderr]              at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libcore/result.rs:612
[INFO] [stderr]    9: <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::h3d2ea583b7c9068f (0x55dba08a47cd)
[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::h37db52ba92e5fd2c (0x55dba089ae7d)
[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::hebf6960686560cef (0x55dba089a2fd)
[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::h09a94a73d46da964 (0x55dba089ea30)
[INFO] [stderr]              at /opt/rustwide/workdir/build.rs:6
[INFO] [stderr]   13: std::rt::lang_start::{{closure}}::h34064a4d797f06d7 (0x55dba08a92ca)
[INFO] [stderr]              at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libstd/rt.rs:67
[INFO] [stderr]   14: std::rt::lang_start_internal::{{closure}}::h7cea099ad4edf1eb (0x55dba0b54fe7)
[INFO] [stderr]              at src/libstd/rt.rs:52
[INFO] [stderr]       std::panicking::try::do_call::h42d93372c44025d2
[INFO] [stderr]              at src/libstd/panicking.rs:296
[INFO] [stderr]       std::panicking::try::hb47a4182362d3341
[INFO] [stderr]              at src/libstd/panicking.rs:273
[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::h3ab8a8975117c4aa (0x55dba08a92a6)
[INFO] [stderr]              at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libstd/rt.rs:67
[INFO] [stderr]   16: main (0x55dba089eaa9)
[INFO] [stderr]   17: __libc_start_main (0x7f1d4858c0b2)
[INFO] [stderr]   18: _start (0x55dba08951cd)
[INFO] [stderr]   19: <unknown> (0x0)
[INFO] [stderr] 
[INFO] [stderr] failed to create "src/protos/kvserver_grpc.rs"
[INFO] [stderr] 
[INFO] [stderr] failed to write generated grpc definitions', build.rs:7:10
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x55dba0b51fd5 - 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:     0x55dba0b51fd5 - 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:     0x55dba0b51fd5 - std::sys_common::backtrace::_print_fmt::ha45fac10086813b4
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x55dba0b51fd5 - <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:     0x55dba0b7b4fc - core::fmt::write::h540ac4a6a1232abc
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x55dba0b4f333 - std::io::Write::write_fmt::hc344eafd6e850b4d
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x55dba0b545e0 - std::sys_common::backtrace::_print::h4db88ff15cb5d61d
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x55dba0b545e0 - std::sys_common::backtrace::print::h5fc39e1b1f610bd3
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x55dba0b545e0 - std::panicking::default_hook::{{closure}}::h59e55edacb1d974a
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x55dba0b5432c - std::panicking::default_hook::heee4c8016dfbf328
[INFO] [stderr]                                at src/libstd/panicking.rs:217
[INFO] [stderr]   10:     0x55dba0b54c17 - std::panicking::rust_panic_with_hook::h8405b6301c79fb5a
[INFO] [stderr]                                at src/libstd/panicking.rs:473
[INFO] [stderr]   11:     0x55dba0b5481b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:384
[INFO] [stderr]   12:     0x55dba0b79461 - core::panicking::panic_fmt::h78830ea6a34e7206
[INFO] [stderr]                                at src/libcore/panicking.rs:85
[INFO] [stderr]   13:     0x55dba0b79283 - core::option::expect_none_failed::hf79bbb5ca7e09e08
[INFO] [stderr]                                at src/libcore/option.rs:1274
[INFO] [stderr]   14:     0x55dba08a3a16 - core::result::Result<T,E>::expect::h5b5afca0aac161f8
[INFO] [stderr]                                at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x55dba089ea6b - build_script_build::main::h09a94a73d46da964
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:6
[INFO] [stderr]   16:     0x55dba08a92cb - std::rt::lang_start::{{closure}}::h34064a4d797f06d7
[INFO] [stderr]                                at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x55dba0b54fe8 - std::rt::lang_start_internal::{{closure}}::h7cea099ad4edf1eb
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x55dba0b54fe8 - std::panicking::try::do_call::h42d93372c44025d2
[INFO] [stderr]                                at src/libstd/panicking.rs:296
[INFO] [stderr]   19:     0x55dba0b54fe8 - std::panicking::try::hb47a4182362d3341
[INFO] [stderr]                                at src/libstd/panicking.rs:273
[INFO] [stderr]   20:     0x55dba0b54fe8 - std::panic::catch_unwind::h2afcfbf3125915b4
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x55dba0b54fe8 - std::rt::lang_start_internal::h4f696727fe904f48
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x55dba08a92a7 - std::rt::lang_start::h3ab8a8975117c4aa
[INFO] [stderr]                                at /rustc/1557fb031b272b4c5bfcc7de5df7eddc7b36a584/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x55dba089eaaa - main
[INFO] [stderr]   24:     0x7f1d4858c0b3 - __libc_start_main
[INFO] [stderr]   25:     0x55dba08951ce - _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" "c778ac23c9a68790566e697f434d69117f8e1ac7b68466c3ca712a104dd3fa29", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c778ac23c9a68790566e697f434d69117f8e1ac7b68466c3ca712a104dd3fa29", kill_on_drop: false }`
[INFO] [stdout] c778ac23c9a68790566e697f434d69117f8e1ac7b68466c3ca712a104dd3fa29