[INFO] fetching crate vk 0.0.1...
[INFO] checking vk-0.0.1 against beta for pr-78714
[INFO] extracting crate vk 0.0.1 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate vk 0.0.1 on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate vk 0.0.1
[INFO] finished tweaking crates.io crate vk 0.0.1
[INFO] tweaked toml for crates.io crate vk 0.0.1 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f00f680f7e5945076b14283987774e345783874b607a21c92f4beb2f98a486c6
[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" "f00f680f7e5945076b14283987774e345783874b607a21c92f4beb2f98a486c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f00f680f7e5945076b14283987774e345783874b607a21c92f4beb2f98a486c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f00f680f7e5945076b14283987774e345783874b607a21c92f4beb2f98a486c6", kill_on_drop: false }`
[INFO] [stdout] f00f680f7e5945076b14283987774e345783874b607a21c92f4beb2f98a486c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d4ecb7bcf7aa0021e967a5dff27cdc990fdf94957aa14230933b936d7bb0d35f
[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" "d4ecb7bcf7aa0021e967a5dff27cdc990fdf94957aa14230933b936d7bb0d35f", kill_on_drop: false }`
[INFO] [stderr]     Checking vk v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.63s
[INFO] running `Command { std: "docker" "inspect" "d4ecb7bcf7aa0021e967a5dff27cdc990fdf94957aa14230933b936d7bb0d35f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d4ecb7bcf7aa0021e967a5dff27cdc990fdf94957aa14230933b936d7bb0d35f", kill_on_drop: false }`
[INFO] [stdout] d4ecb7bcf7aa0021e967a5dff27cdc990fdf94957aa14230933b936d7bb0d35f