[INFO] updating cached repository https://github.com/williamhogman/rusty-snek
[INFO] running `"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"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] b06b5188c9ff28fd7a05eea4c287985f5cb59c2d
[INFO] testing williamhogman/rusty-snek against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwilliamhogman%2Frusty-snek" "/workspace/builds/worker-8/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/williamhogman/rusty-snek on toolchain beta-2020-06-03
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/williamhogman/rusty-snek
[INFO] finished tweaking git repo https://github.com/williamhogman/rusty-snek
[INFO] tweaked toml for git repo https://github.com/williamhogman/rusty-snek written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/williamhogman/rusty-snek already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+beta-2020-06-03" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /workspace/builds/worker-8/source/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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=warn" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-06-03" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 704a9ff35a0a774d3719a568a79e13379fbd928d89de67e2270c1c7e66ac3b67
[INFO] running `"docker" "start" "-a" "704a9ff35a0a774d3719a568a79e13379fbd928d89de67e2270c1c7e66ac3b67"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently
[INFO] [stderr] disables Cargo from automatically inferring other binary targets.
[INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following
[INFO] [stderr] files will be included as a binary target:
[INFO] [stderr] 
[INFO] [stderr] * /opt/rustwide/workdir/src/main.rs
[INFO] [stderr] 
[INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be
[INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself
[INFO] [stderr] and disable this warning by adding `autobins = false` to your [package]
[INFO] [stderr] section. You may also move the files to a location where Cargo would not
[INFO] [stderr] automatically infer them to be a target, such as in subfolders.
[INFO] [stderr] 
[INFO] [stderr] For more information on this warning you can consult
[INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330
[INFO] [stderr]    Compiling cfg-if v0.1.3
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling protobuf v1.7.3
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling rand_core v0.2.0
[INFO] [stderr]    Compiling futures v0.1.21
[INFO] [stderr]    Compiling cmake v0.1.31
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling backtrace v0.3.8
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling protoc v1.7.3
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling rand v0.5.0
[INFO] [stderr]    Compiling grpcio-sys v0.2.3
[INFO] [stderr]    Compiling rand v0.3.22
[INFO] [stderr]    Compiling uuid v0.1.18
[INFO] [stderr]    Compiling mktemp v0.3.1
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling failure v0.1.1
[INFO] [stderr]    Compiling grpcio-compiler v0.2.0
[INFO] [stderr]    Compiling protoc-grpcio v0.1.1
[INFO] [stderr]    Compiling copperhead v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: failed to run custom build command for `copperhead v0.1.0 (/opt/rustwide/workdir)`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `/opt/rustwide/target/debug/build/copperhead-9ecfc560e5c8186d/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:     0x5619c69e0b63 - backtrace::backtrace::libunwind::trace::h4f2f5ba92d8c77d3
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.8/src/backtrace/libunwind.rs:53
[INFO] [stderr]                          - backtrace::backtrace::trace::h000c15e054c02644
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.8/src/backtrace/mod.rs:42
[INFO] [stderr]    1:     0x5619c69ddf25 - backtrace::capture::Backtrace::new_unresolved::h5db5ee1d85521650
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.8/src/capture.rs:88
[INFO] [stderr]    2:     0x5619c69dc5eb - failure::backtrace::internal::InternalBacktrace::new::h73186fd043457e16
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/backtrace/internal.rs:44
[INFO] [stderr]    3:     0x5619c69db38c - failure::backtrace::Backtrace::new::h6b30d1f3881c06e0
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/backtrace/mod.rs:98
[INFO] [stderr]    4:     0x5619c69ac9b8 - <failure::error::Error as core::convert::From<F>>::from::h72eaec42369f03e5
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/error.rs:34
[INFO] [stderr]    5:     0x5619c69ad95e - <T as core::convert::Into<U>>::into::hfb518d133c8d6dd3
[INFO] [stderr]                         at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libcore/convert/mod.rs:559
[INFO] [stderr]    6:     0x5619c69a3f2d - failure::context::Context<D>::with_err::h0b36a134ea258769
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/context.rs:78
[INFO] [stderr]    7:     0x5619c69adf05 - failure::Fail::context::hea04d0fdb8252152
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/lib.rs:127
[INFO] [stderr]    8:     0x5619c69b0105 - <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::{{closure}}::h69d45a40db9dfd2d
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/result_ext.rs:32
[INFO] [stderr]    9:     0x5619c69aa3b1 - core::result::Result<T,E>::map_err::h4c1acf1e0b56e95a
[INFO] [stderr]                         at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libcore/result.rs:612
[INFO] [stderr]   10:     0x5619c69aad6d - <core::result::Result<T,E> as failure::result_ext::ResultExt<T,E>>::context::h0f6f781296c99b2a
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/failure-0.1.1/src/result_ext.rs:32
[INFO] [stderr]   11:     0x5619c69a175a - protoc_grpcio::write_out_generated_files::h2f9679ecf89da049
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protoc-grpcio-0.1.1/src/lib.rs:89
[INFO] [stderr]   12:     0x5619c69a0c27 - protoc_grpcio::compile_grpc_protos::h7887df36652757a4
[INFO] [stderr]                         at /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/protoc-grpcio-0.1.1/src/lib.rs:252
[INFO] [stderr]   13:     0x5619c69a4ac0 - build_script_build::main::hf18da9c8001a85ad
[INFO] [stderr]                         at /opt/rustwide/workdir/build.rs:7
[INFO] [stderr]   14:     0x5619c69ad1fa - std::rt::lang_start::{{closure}}::hb57dc68f973d5f4b
[INFO] [stderr]                         at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libstd/rt.rs:67
[INFO] [stderr]   15:     0x5619c6c45a27 - std::rt::lang_start_internal::{{closure}}::haabc9d435e1b0c2f
[INFO] [stderr]                         at src/libstd/rt.rs:52
[INFO] [stderr]                          - std::panicking::try::do_call::h54d9370b0ac83700
[INFO] [stderr]                         at src/libstd/panicking.rs:297
[INFO] [stderr]                          - std::panicking::try::h85e1c41421d5b6f9
[INFO] [stderr]                         at src/libstd/panicking.rs:274
[INFO] [stderr]                          - std::panic::catch_unwind::hfd957e6c9fdcf274
[INFO] [stderr]                         at src/libstd/panic.rs:394
[INFO] [stderr]                          - std::rt::lang_start_internal::hed9744eef32ef5a1
[INFO] [stderr]                         at src/libstd/rt.rs:51
[INFO] [stderr]   16:     0x5619c69ad1d6 - std::rt::lang_start::h05e50d5f47e96c91
[INFO] [stderr]                         at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x5619c69a4b39 - main
[INFO] [stderr]   18:     0x7f65f1e770b2 - __libc_start_main
[INFO] [stderr]   19:     0x5619c699c1cd - _start
[INFO] [stderr]   20:                0x0 - <unknown>
[INFO] [stderr] 
[INFO] [stderr] failed to create "src/protos/snake_grpc.rs"
[INFO] [stderr] 
[INFO] [stderr] failed to write generated grpc definitions', build.rs:7:5
[INFO] [stderr] stack backtrace:
[INFO] [stderr]    0:     0x5619c6c42585 - backtrace::backtrace::libunwind::trace::h07c956be65d9b461
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stderr]    1:     0x5619c6c42585 - backtrace::backtrace::trace_unsynchronized::h2fdb9e4177ad4d20
[INFO] [stderr]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stderr]    2:     0x5619c6c42585 - std::sys_common::backtrace::_print_fmt::ha62d8426311107ac
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stderr]    3:     0x5619c6c42585 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h3ec6bdab62f1e8d9
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stderr]    4:     0x5619c6c6ba9c - core::fmt::write::h935cb0ed4078a853
[INFO] [stderr]                                at src/libcore/fmt/mod.rs:1076
[INFO] [stderr]    5:     0x5619c6c3f9f3 - std::io::Write::write_fmt::hc912aacf8d691eb3
[INFO] [stderr]                                at src/libstd/io/mod.rs:1537
[INFO] [stderr]    6:     0x5619c6c45020 - std::sys_common::backtrace::_print::h460db802d801ccf8
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stderr]    7:     0x5619c6c45020 - std::sys_common::backtrace::print::h399d664f56640530
[INFO] [stderr]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stderr]    8:     0x5619c6c45020 - std::panicking::default_hook::{{closure}}::hc6dfd87957c765b8
[INFO] [stderr]                                at src/libstd/panicking.rs:198
[INFO] [stderr]    9:     0x5619c6c44d6c - std::panicking::default_hook::hfdceba6d6d1a18ae
[INFO] [stderr]                                at src/libstd/panicking.rs:218
[INFO] [stderr]   10:     0x5619c6c45657 - std::panicking::rust_panic_with_hook::hd01e282bff1b1e63
[INFO] [stderr]                                at src/libstd/panicking.rs:486
[INFO] [stderr]   11:     0x5619c6c4525b - rust_begin_unwind
[INFO] [stderr]                                at src/libstd/panicking.rs:388
[INFO] [stderr]   12:     0x5619c6c69a01 - core::panicking::panic_fmt::habd7df443069602c
[INFO] [stderr]                                at src/libcore/panicking.rs:101
[INFO] [stderr]   13:     0x5619c6c69823 - core::option::expect_none_failed::h721078758a086285
[INFO] [stderr]                                at src/libcore/option.rs:1272
[INFO] [stderr]   14:     0x5619c69aa056 - core::result::Result<T,E>::expect::h22a40d1a225e1f28
[INFO] [stderr]                                at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libcore/result.rs:963
[INFO] [stderr]   15:     0x5619c69a4afb - build_script_build::main::hf18da9c8001a85ad
[INFO] [stderr]                                at /opt/rustwide/workdir/build.rs:7
[INFO] [stderr]   16:     0x5619c69ad1fb - std::rt::lang_start::{{closure}}::hb57dc68f973d5f4b
[INFO] [stderr]                                at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libstd/rt.rs:67
[INFO] [stderr]   17:     0x5619c6c45a28 - std::rt::lang_start_internal::{{closure}}::haabc9d435e1b0c2f
[INFO] [stderr]                                at src/libstd/rt.rs:52
[INFO] [stderr]   18:     0x5619c6c45a28 - std::panicking::try::do_call::h54d9370b0ac83700
[INFO] [stderr]                                at src/libstd/panicking.rs:297
[INFO] [stderr]   19:     0x5619c6c45a28 - std::panicking::try::h85e1c41421d5b6f9
[INFO] [stderr]                                at src/libstd/panicking.rs:274
[INFO] [stderr]   20:     0x5619c6c45a28 - std::panic::catch_unwind::hfd957e6c9fdcf274
[INFO] [stderr]                                at src/libstd/panic.rs:394
[INFO] [stderr]   21:     0x5619c6c45a28 - std::rt::lang_start_internal::hed9744eef32ef5a1
[INFO] [stderr]                                at src/libstd/rt.rs:51
[INFO] [stderr]   22:     0x5619c69ad1d7 - std::rt::lang_start::h05e50d5f47e96c91
[INFO] [stderr]                                at /rustc/b7dc83a3f6ca9746fb3d121761c3605477b77d90/src/libstd/rt.rs:67
[INFO] [stderr]   23:     0x5619c69a4b3a - main
[INFO] [stderr]   24:     0x7f65f1e770b3 - __libc_start_main
[INFO] [stderr]   25:     0x5619c699c1ce - _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 `"docker" "inspect" "704a9ff35a0a774d3719a568a79e13379fbd928d89de67e2270c1c7e66ac3b67"`
[INFO] running `"docker" "rm" "-f" "704a9ff35a0a774d3719a568a79e13379fbd928d89de67e2270c1c7e66ac3b67"`
[INFO] [stdout] 704a9ff35a0a774d3719a568a79e13379fbd928d89de67e2270c1c7e66ac3b67