[INFO] fetching crate prost-build 0.6.1...
[INFO] checking prost-build-0.6.1 against master#119d2a1a98fe87d4ae6cabf12134a0ef2fb95851 for pr-75180
[INFO] extracting crate prost-build 0.6.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate prost-build 0.6.1 on toolchain 119d2a1a98fe87d4ae6cabf12134a0ef2fb95851
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-9/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7a626c95e74d077431a4bd24754f7ce37b5bd6e4a281bcc95abc9bd69b10972d
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7a626c95e74d077431a4bd24754f7ce37b5bd6e4a281bcc95abc9bd69b10972d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7a626c95e74d077431a4bd24754f7ce37b5bd6e4a281bcc95abc9bd69b10972d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7a626c95e74d077431a4bd24754f7ce37b5bd6e4a281bcc95abc9bd69b10972d", kill_on_drop: false }`
[INFO] [stdout] 7a626c95e74d077431a4bd24754f7ce37b5bd6e4a281bcc95abc9bd69b10972d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+119d2a1a98fe87d4ae6cabf12134a0ef2fb95851" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 977c1671d25c0311e19e75f1579fde34c117845978804560208f3823d2b69702
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "977c1671d25c0311e19e75f1579fde34c117845978804560208f3823d2b69702", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.39
[INFO] [stderr]     Checking either v1.6.0
[INFO] [stderr]     Checking multimap v0.8.1
[INFO] [stderr]    Compiling hashbrown v0.8.2
[INFO] [stderr]    Compiling indexmap v1.5.1
[INFO] [stderr]    Compiling anyhow v1.0.32
[INFO] [stderr]     Checking log v0.4.11
[INFO] [stderr]    Compiling which v3.1.1
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling prost-build v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking petgraph v0.5.1
[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 30.52s
[INFO] running `Command { std: "docker" "inspect" "977c1671d25c0311e19e75f1579fde34c117845978804560208f3823d2b69702", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "977c1671d25c0311e19e75f1579fde34c117845978804560208f3823d2b69702", kill_on_drop: false }`
[INFO] [stdout] 977c1671d25c0311e19e75f1579fde34c117845978804560208f3823d2b69702