[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] 7c5786eedfd1b2a5b945b7ed9ddd8ddc8e6e952b
[INFO] checking messense/fasttext-serving against try#3738e44c8fffe9e1fdfda9304a4df74ce7b29152 for pr-68746
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmessense%2Ffasttext-serving" "/workspace/builds/worker-12/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-12/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/messense/fasttext-serving on toolchain 3738e44c8fffe9e1fdfda9304a4df74ce7b29152
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "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-12/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" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "/opt/rustwide/cargo-home/bin/cargo" "+3738e44c8fffe9e1fdfda9304a4df74ce7b29152" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 1327263fb8836e55b57b124b575a02feb63d7ae451d88f5c0f5b864ab94f2a50
[INFO] running `"docker" "start" "-a" "1327263fb8836e55b57b124b575a02feb63d7ae451d88f5c0f5b864ab94f2a50"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling either v1.5.3
[INFO] [stderr]     Checking tower-layer v0.3.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling multimap v0.8.0
[INFO] [stderr]     Checking tracing-core v0.1.9
[INFO] [stderr]     Checking bytestring v0.1.4
[INFO] [stderr]    Compiling jemalloc-sys v0.3.2
[INFO] [stderr]    Compiling anyhow v1.0.26
[INFO] [stderr]    Compiling cfasttext-sys v0.4.1
[INFO] [stderr]    Compiling prost-build v0.6.1
[INFO] [stderr]    Compiling tokio-macros v0.2.3
[INFO] [stderr]    Compiling pin-project-internal v0.4.7
[INFO] [stderr]    Compiling serde_derive v1.0.104
[INFO] [stderr]    Compiling tracing-attributes v0.1.6
[INFO] [stderr]    Compiling async-stream-impl v0.2.0
[INFO] [stderr]    Compiling actix-web-codegen v0.2.0
[INFO] [stderr]    Compiling rand_pcg v0.2.1
[INFO] [stderr]     Checking actix-threadpool v0.3.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking failure v0.1.6
[INFO] [stderr]    Compiling itertools v0.8.2
[INFO] [stderr]    Compiling petgraph v0.5.0
[INFO] [stderr]     Checking tokio v0.2.9
[INFO] [stderr]     Checking async-stream v0.2.0
[INFO] [stderr]     Checking tracing v0.1.12
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]    Compiling tempfile v3.1.0
[INFO] [stderr] error: could not compile `serde_derive`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name serde_derive /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde_derive-1.0.104/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C debuginfo=2 --cfg 'feature="default"' -C metadata=3429ce43185cad14 -C extra-filename=-3429ce43185cad14 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-f0e640efd9697a33.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-8971e81be9477020.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-3a3e97060a99cdfb.rlib --extern proc_macro --cap-lints allow --cap-lints=forbid` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "1327263fb8836e55b57b124b575a02feb63d7ae451d88f5c0f5b864ab94f2a50"`
[INFO] running `"docker" "rm" "-f" "1327263fb8836e55b57b124b575a02feb63d7ae451d88f5c0f5b864ab94f2a50"`
[INFO] [stdout] 1327263fb8836e55b57b124b575a02feb63d7ae451d88f5c0f5b864ab94f2a50