[INFO] cloning repository https://github.com/cynomys/cyno
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/cynomys/cyno" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynomys%2Fcyno", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynomys%2Fcyno'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec86bde0a7f677762c2999ac2a8b92d24234af0c
[INFO] checking cynomys/cyno against master#7b3a7819371cef92a187e9bac8f7810ccde15216 for pr-74846
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcynomys%2Fcyno" "/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/cynomys/cyno on toolchain 7b3a7819371cef92a187e9bac8f7810ccde15216
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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-4/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" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "metadata" "--no-deps" "--format-version=1", 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] 75141b2da2bff3674e5b15508bed2c6644f8c738342ca6db55f7f56288506e75
[INFO] running `Command { std: "docker" "start" "-a" "75141b2da2bff3674e5b15508bed2c6644f8c738342ca6db55f7f56288506e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "75141b2da2bff3674e5b15508bed2c6644f8c738342ca6db55f7f56288506e75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75141b2da2bff3674e5b15508bed2c6644f8c738342ca6db55f7f56288506e75", kill_on_drop: false }`
[INFO] [stdout] 75141b2da2bff3674e5b15508bed2c6644f8c738342ca6db55f7f56288506e75
[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" "RUSTFLAGS=--cap-lints=forbid" "-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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+7b3a7819371cef92a187e9bac8f7810ccde15216" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1c81d2d7007111d06c11925db046ec99833b61ff2ed3e347db9c69ac58e22c18
[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" "1c81d2d7007111d06c11925db046ec99833b61ff2ed3e347db9c69ac58e22c18", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.27
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling autocfg v0.1.2
[INFO] [stderr]    Compiling serde v1.0.89
[INFO] [stderr]     Checking rand_core v0.4.0
[INFO] [stderr]    Compiling protobuf v2.3.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling failure_derive v0.1.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.13
[INFO] [stderr]     Checking nodrop v0.1.13
[INFO] [stderr]    Compiling remove_dir_all v0.5.1
[INFO] [stderr]    Compiling pkg-config v0.3.14
[INFO] [stderr]     Checking either v1.5.1
[INFO] [stderr]    Compiling feature-probe v0.1.1
[INFO] [stderr]    Compiling num-complex v0.2.1
[INFO] [stderr]    Compiling rayon-core v1.4.1
[INFO] [stderr]     Checking memoffset v0.2.1
[INFO] [stderr]    Compiling unicode-segmentation v1.2.1
[INFO] [stderr]    Compiling ndarray v0.12.1
[INFO] [stderr]     Checking rawpointer v0.1.0
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking quick-error v1.2.2
[INFO] [stderr]     Checking subtle v1.0.0
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.7.0
[INFO] [stderr]    Compiling bio v0.25.0
[INFO] [stderr]     Checking bit-vec v0.5.0
[INFO] [stderr]    Compiling rayon v1.0.3
[INFO] [stderr]     Checking bytecount v0.3.2
[INFO] [stderr]     Checking byte-tools v0.3.1
[INFO] [stderr]     Checking custom_derive v0.1.7
[INFO] [stderr]     Checking opaque-debug v0.2.2
[INFO] [stderr]     Checking fnv v1.0.6
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]    Compiling cmake v0.1.35
[INFO] [stderr]    Compiling log v0.4.6
[INFO] [stderr]     Checking crossbeam-utils v0.2.2
[INFO] [stderr]    Compiling rustc_version v0.1.7
[INFO] [stderr]     Checking regex-syntax v0.6.5
[INFO] [stderr]     Checking itertools v0.7.11
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand_jitter v0.1.3
[INFO] [stderr]     Checking textwrap v0.10.0
[INFO] [stderr]    Compiling bv v0.10.0
[INFO] [stderr]    Compiling libc v0.2.49
[INFO] [stderr]     Checking arrayvec v0.4.10
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]     Checking matrixmultiply v0.1.15
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling backtrace v0.3.14
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]     Checking bit-set v0.5.0
[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]     Checking rand v0.4.6
[INFO] [stderr]     Checking num_cpus v1.10.0
[INFO] [stderr]     Checking rand_os v0.1.2
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking generic-array v0.12.0
[INFO] [stderr]    Compiling newtype_derive v0.1.6
[INFO] [stderr]    Compiling grpcio-sys v0.4.4
[INFO] [stderr]     Checking crossbeam-epoch v0.3.1
[INFO] [stderr]     Checking aho-corasick v0.6.10
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]     Checking digest v0.8.0
[INFO] [stderr]     Checking crypto-mac v0.7.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]     Checking crossbeam-deque v0.2.0
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking blake2 v0.8.0
[INFO] [stderr]     Checking statrs v0.9.0
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]     Checking approx v0.3.1
[INFO] [stderr]     Checking num-integer v0.1.39
[INFO] [stderr]     Checking itertools-num v0.1.3
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]    Compiling tempfile v3.0.7
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]    Compiling protobuf-codegen v2.3.0
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling grpcio-compiler v0.4.3
[INFO] [stderr]    Compiling serde_derive v1.0.88
[INFO] [stderr]    Compiling structopt-derive v0.2.15
[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-330f1713cb910bbb/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::ha98bb50281466994 (0x5633bfe83425)
[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::hf54e70a795a9984c (0x5633bfe81f5d)
[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::hf739733b28018330 (0x5633bfe3af9b)
[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::he009b2627d379e50 (0x5633bfe3de6e)
[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::hc43e1ac573683b5f (0x5633bfe3bbfe)
[INFO] [stderr]                at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/core/src/convert/mod.rs:563
[INFO] [stderr]      5: failure::context::Context<D>::with_err::hadeaad6815232e43 (0x5633bfe320ed)
[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::he43db8322f38ea78 (0x5633bfe3c2f5)
[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}}::h7a389ffe4692e9cd (0x5633bfe3dfe5)
[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::heac1f2a27284ecbc (0x5633bfe37d71)
[INFO] [stderr]                at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/core/src/result.rs:612
[INFO] [stderr]      9: <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::hbe84a47515a7adba (0x5633bfe384cd)
[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::h967614cef721103d (0x5633bfe2ee17)
[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::h591448832bd13fa2 (0x5633bfe2e2cd)
[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::h2f922dfafde2e848 (0x5633bfe32850)
[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}}::h63d972ed9b636f9d (0x5633bfe3cf5a)
[INFO] [stderr]                at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     14: std::rt::lang_start_internal::{{closure}}::hb14aa68a79b4eb09 (0x5633c00e2112)
[INFO] [stderr]                at library/std/src/rt.rs:52
[INFO] [stderr]         std::panicking::try::do_call::haffb1227d43d77f1
[INFO] [stderr]                at library/std/src/panicking.rs:348
[INFO] [stderr]         std::panicking::try::hc085bbb3f48e6fb0
[INFO] [stderr]                at library/std/src/panicking.rs:325
[INFO] [stderr]         std::panic::catch_unwind::h0d91c438fed06f5e
[INFO] [stderr]                at library/std/src/panic.rs:394
[INFO] [stderr]         std::rt::lang_start_internal::h9a2f79aa5e187e95
[INFO] [stderr]                at library/std/src/rt.rs:51
[INFO] [stderr]     15: std::rt::lang_start::h590b835436deaa66 (0x5633bfe3cf36)
[INFO] [stderr]                at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     16: main (0x5633bfe328c9)
[INFO] [stderr]     17: __libc_start_main (0x7f3382df60b2)
[INFO] [stderr]     18: _start (0x5633bfe291cd)
[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:     0x5633c00df1c5 - backtrace::backtrace::libunwind::trace::hdc42e81315d2a69f
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]      1:     0x5633c00df1c5 - backtrace::backtrace::trace_unsynchronized::hc9edcf4d4fb0b42d
[INFO] [stderr]                                  at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]      2:     0x5633c00df1c5 - std::sys_common::backtrace::_print_fmt::hb93b171b1042fa52
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:78
[INFO] [stderr]      3:     0x5633c00df1c5 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h589f1bf1cf74dd71
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:59
[INFO] [stderr]      4:     0x5633c010800c - core::fmt::write::h3a043650ba7bf668
[INFO] [stderr]                                  at library/core/src/fmt/mod.rs:1117
[INFO] [stderr]      5:     0x5633c00dc4b2 - std::io::Write::write_fmt::hbbad3ca30e02a58a
[INFO] [stderr]                                  at library/std/src/io/mod.rs:1510
[INFO] [stderr]      6:     0x5633c00e1700 - std::sys_common::backtrace::_print::h96b2d71887f0b186
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:62
[INFO] [stderr]      7:     0x5633c00e1700 - std::sys_common::backtrace::print::h6cd6e92e674a16a4
[INFO] [stderr]                                  at library/std/src/sys_common/backtrace.rs:49
[INFO] [stderr]      8:     0x5633c00e1700 - std::panicking::default_hook::{{closure}}::h76820e280a7c9f14
[INFO] [stderr]                                  at library/std/src/panicking.rs:198
[INFO] [stderr]      9:     0x5633c00e144c - std::panicking::default_hook::h3c589b4200c4e9d0
[INFO] [stderr]                                  at library/std/src/panicking.rs:217
[INFO] [stderr]     10:     0x5633c00e1d43 - std::panicking::rust_panic_with_hook::h99205632f2cac760
[INFO] [stderr]                                  at library/std/src/panicking.rs:526
[INFO] [stderr]     11:     0x5633c00e193b - rust_begin_unwind
[INFO] [stderr]                                  at library/std/src/panicking.rs:437
[INFO] [stderr]     12:     0x5633c0105f71 - core::panicking::panic_fmt::h019ad16a92ccd092
[INFO] [stderr]                                  at library/core/src/panicking.rs:85
[INFO] [stderr]     13:     0x5633c0105d93 - core::option::expect_none_failed::h7135ba2fdb185931
[INFO] [stderr]                                  at library/core/src/option.rs:1273
[INFO] [stderr]     14:     0x5633bfe37606 - core::result::Result<T,E>::expect::h74707ec7f415d275
[INFO] [stderr]                                  at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/core/src/result.rs:963
[INFO] [stderr]     15:     0x5633bfe3288b - build_script_build::main::h2f922dfafde2e848
[INFO] [stderr]                                  at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/dgraph-0.1.2/build.rs:7
[INFO] [stderr]     16:     0x5633bfe3cf5b - std::rt::lang_start::{{closure}}::h63d972ed9b636f9d
[INFO] [stderr]                                  at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     17:     0x5633c00e2113 - std::rt::lang_start_internal::{{closure}}::hb14aa68a79b4eb09
[INFO] [stderr]                                  at library/std/src/rt.rs:52
[INFO] [stderr]     18:     0x5633c00e2113 - std::panicking::try::do_call::haffb1227d43d77f1
[INFO] [stderr]                                  at library/std/src/panicking.rs:348
[INFO] [stderr]     19:     0x5633c00e2113 - std::panicking::try::hc085bbb3f48e6fb0
[INFO] [stderr]                                  at library/std/src/panicking.rs:325
[INFO] [stderr]     20:     0x5633c00e2113 - std::panic::catch_unwind::h0d91c438fed06f5e
[INFO] [stderr]                                  at library/std/src/panic.rs:394
[INFO] [stderr]     21:     0x5633c00e2113 - std::rt::lang_start_internal::h9a2f79aa5e187e95
[INFO] [stderr]                                  at library/std/src/rt.rs:51
[INFO] [stderr]     22:     0x5633bfe3cf37 - std::rt::lang_start::h590b835436deaa66
[INFO] [stderr]                                  at /rustc/7b3a7819371cef92a187e9bac8f7810ccde15216/library/std/src/rt.rs:67
[INFO] [stderr]     23:     0x5633bfe328ca - main
[INFO] [stderr]     24:     0x7f3382df60b3 - __libc_start_main
[INFO] [stderr]     25:     0x5633bfe291ce - _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" "1c81d2d7007111d06c11925db046ec99833b61ff2ed3e347db9c69ac58e22c18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c81d2d7007111d06c11925db046ec99833b61ff2ed3e347db9c69ac58e22c18", kill_on_drop: false }`
[INFO] [stdout] 1c81d2d7007111d06c11925db046ec99833b61ff2ed3e347db9c69ac58e22c18