[INFO] updating cached repository https://github.com/messense/fasttext-serving
[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] 03e731b67fe78abb1ba4860b3e3fb514cdac0aaf
[INFO] testing messense/fasttext-serving against beta-2020-06-03 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessense%2Ffasttext-serving" "/workspace/builds/worker-0/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/messense/fasttext-serving 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/messense/fasttext-serving
[INFO] finished tweaking git repo https://github.com/messense/fasttext-serving
[INFO] tweaked toml for git repo https://github.com/messense/fasttext-serving written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/messense/fasttext-serving 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] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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] b35790d24d06c6856bfb61003bb98148a39ca20a0eeaad7b8456d75c26bd3364
[INFO] running `"docker" "start" "-a" "b35790d24d06c6856bfb61003bb98148a39ca20a0eeaad7b8456d75c26bd3364"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling anyhow v1.0.28
[INFO] [stderr]    Compiling tower-layer v0.3.0
[INFO] [stderr]    Compiling standback v0.2.2
[INFO] [stderr]    Compiling multimap v0.8.1
[INFO] [stderr]    Compiling tracing-core v0.1.10
[INFO] [stderr]    Compiling cmake v0.1.42
[INFO] [stderr]    Compiling bytestring v0.1.5
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling http-body v0.3.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.35
[INFO] [stderr]    Compiling hostname v0.3.1
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]    Compiling brotli-sys v0.3.2
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]    Compiling threadpool v1.7.1
[INFO] [stderr]    Compiling clap v2.33.0
[INFO] [stderr]    Compiling flate2 v1.0.14
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]    Compiling backtrace v0.3.46
[INFO] [stderr]    Compiling brotli2 v0.3.2
[INFO] [stderr]    Compiling resolv-conf v0.6.3
[INFO] [stderr]    Compiling rand v0.7.3
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling pretty_env_logger v0.4.0
[INFO] [stderr]    Compiling cfasttext-sys v0.4.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr]    Compiling fasttext v0.4.1
[INFO] [stderr]    Compiling tokio-macros v0.2.5
[INFO] [stderr]    Compiling pin-project-internal v0.4.9
[INFO] [stderr]    Compiling futures-macro v0.3.4
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling actix-macros v0.1.1
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.15
[INFO] [stderr]    Compiling serde_derive v1.0.106
[INFO] [stderr]    Compiling async-trait v0.1.30
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling enum-as-inner v0.3.2
[INFO] [stderr]    Compiling tracing-attributes v0.1.7
[INFO] [stderr]    Compiling time-macros-impl v0.1.0
[INFO] [stderr]    Compiling async-stream-impl v0.2.1
[INFO] [stderr]    Compiling actix-web-codegen v0.2.1
[INFO] [stderr]    Compiling time-macros v0.1.0
[INFO] [stderr]    Compiling tokio v0.2.18
[INFO] [stderr]    Compiling time v0.2.9
[INFO] [stderr]    Compiling futures-util v0.3.4
[INFO] [stderr]    Compiling async-stream v0.2.1
[INFO] [stderr] error: could not compile `prost-derive`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name prost_derive --edition=2018 /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/prost-derive-0.6.1/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -Cembed-bitcode=no -C debuginfo=2 -C metadata=789b4dba917a9c38 -C extra-filename=-789b4dba917a9c38 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-b5fcb5f8be468ee2.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-acb3c0777c12160e.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-935ebbc60f0a9367.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-95927a536c60c746.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-4c9cb192eed27a67.rlib --cap-lints allow --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "b35790d24d06c6856bfb61003bb98148a39ca20a0eeaad7b8456d75c26bd3364"`
[INFO] running `"docker" "rm" "-f" "b35790d24d06c6856bfb61003bb98148a39ca20a0eeaad7b8456d75c26bd3364"`
[INFO] [stdout] b35790d24d06c6856bfb61003bb98148a39ca20a0eeaad7b8456d75c26bd3364