[INFO] crate prost-build 0.6.1 is already in cache
[INFO] checking prost-build-0.6.1 against master#3dbade652ed8ebac70f903e01f51cd92c4e4302c for pr-69880
[INFO] extracting crate prost-build 0.6.1 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate prost-build 0.6.1 on toolchain 3dbade652ed8ebac70f903e01f51cd92c4e4302c
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate prost-build 0.6.1
[INFO] finished tweaking crates.io crate prost-build 0.6.1
[INFO] tweaked toml for crates.io crate prost-build 0.6.1 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "+3dbade652ed8ebac70f903e01f51cd92c4e4302c" "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] 48bb490ab2578b8612a2253367bf8789439a346d2a89e3de1dd6d493cf2083d0
[INFO] running `"docker" "start" "-a" "48bb490ab2578b8612a2253367bf8789439a346d2a89e3de1dd6d493cf2083d0"`
[INFO] [stderr]     Checking multimap v0.8.0
[INFO] [stderr]    Compiling prost-build v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling syn v1.0.16
[INFO] [stderr]     Checking petgraph v0.5.0
[INFO] [stderr]    Compiling prost-derive v0.6.1
[INFO] [stderr]     Checking prost v0.6.1
[INFO] [stderr]     Checking prost-types v0.6.1
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 19.97s
[INFO] running `"docker" "inspect" "48bb490ab2578b8612a2253367bf8789439a346d2a89e3de1dd6d493cf2083d0"`
[INFO] running `"docker" "rm" "-f" "48bb490ab2578b8612a2253367bf8789439a346d2a89e3de1dd6d493cf2083d0"`
[INFO] [stdout] 48bb490ab2578b8612a2253367bf8789439a346d2a89e3de1dd6d493cf2083d0