[INFO] fetching crate sentencepiece 0.8.0...
[INFO] checking sentencepiece-0.8.0 against try#07fecb9cf34c4979a772ba38c99d6d9144768413 for pr-87710
[INFO] extracting crate sentencepiece 0.8.0 into /workspace/builds/worker-111/source
[INFO] validating manifest of crates.io crate sentencepiece 0.8.0 on toolchain 07fecb9cf34c4979a772ba38c99d6d9144768413
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate sentencepiece 0.8.0
[INFO] finished tweaking crates.io crate sentencepiece 0.8.0
[INFO] tweaked toml for crates.io crate sentencepiece 0.8.0 written to /workspace/builds/worker-111/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded sentencepiece-sys v0.7.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0a8f6ff7518368ec998791a76f64675364b088b65450626bee064d45e8cfb76e
[INFO] running `Command { std: "docker" "start" "-a" "0a8f6ff7518368ec998791a76f64675364b088b65450626bee064d45e8cfb76e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0a8f6ff7518368ec998791a76f64675364b088b65450626bee064d45e8cfb76e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0a8f6ff7518368ec998791a76f64675364b088b65450626bee064d45e8cfb76e", kill_on_drop: false }`
[INFO] [stdout] 0a8f6ff7518368ec998791a76f64675364b088b65450626bee064d45e8cfb76e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-111/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+07fecb9cf34c4979a772ba38c99d6d9144768413" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c5dbd189d00e0c4753571eda3d9e39f5a6e61af09f6f380d87782a315c7e1dd1
[INFO] running `Command { std: "docker" "start" "-a" "c5dbd189d00e0c4753571eda3d9e39f5a6e61af09f6f380d87782a315c7e1dd1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling cc v1.0.69
[INFO] [stderr]    Compiling anyhow v1.0.43
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]     Checking bytes v1.0.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.28
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling cmake v0.1.45
[INFO] [stderr]    Compiling syn v1.0.75
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling sentencepiece-sys v0.7.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling prost-derive v0.8.0
[INFO] [stderr]    Compiling num-derive v0.3.3
[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-0.8.0/src/lib.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type proc-macro --emit=dep-info,link -C prefer-dynamic -C embed-bitcode=no -C debuginfo=2 -C metadata=a2a48cc8a4af64ee -C extra-filename=-a2a48cc8a4af64ee --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern anyhow=/opt/rustwide/target/debug/deps/libanyhow-fcd276ace283f516.rlib --extern itertools=/opt/rustwide/target/debug/deps/libitertools-9ade512e5033c232.rlib --extern proc_macro2=/opt/rustwide/target/debug/deps/libproc_macro2-72dd94e62781faf3.rlib --extern quote=/opt/rustwide/target/debug/deps/libquote-754b571958ad5368.rlib --extern syn=/opt/rustwide/target/debug/deps/libsyn-a31aa8b5adcff8c2.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 `Command { std: "docker" "inspect" "c5dbd189d00e0c4753571eda3d9e39f5a6e61af09f6f380d87782a315c7e1dd1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5dbd189d00e0c4753571eda3d9e39f5a6e61af09f6f380d87782a315c7e1dd1", kill_on_drop: false }`
[INFO] [stdout] c5dbd189d00e0c4753571eda3d9e39f5a6e61af09f6f380d87782a315c7e1dd1