[INFO] fetching crate benchmarking 0.4.9...
[INFO] checking benchmarking-0.4.9 against beta for pr-78714
[INFO] extracting crate benchmarking 0.4.9 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate benchmarking 0.4.9 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 benchmarking 0.4.9
[INFO] finished tweaking crates.io crate benchmarking 0.4.9
[INFO] tweaked toml for crates.io crate benchmarking 0.4.9 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate benchmarking 0.4.9 already has a lockfile, it will not be regenerated
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 00180a1e6a7e515e2384c5a9d7889ea41d096603dc3ae2b71e20f50d10bb67fa
[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" "00180a1e6a7e515e2384c5a9d7889ea41d096603dc3ae2b71e20f50d10bb67fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "00180a1e6a7e515e2384c5a9d7889ea41d096603dc3ae2b71e20f50d10bb67fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00180a1e6a7e515e2384c5a9d7889ea41d096603dc3ae2b71e20f50d10bb67fa", kill_on_drop: false }`
[INFO] [stdout] 00180a1e6a7e515e2384c5a9d7889ea41d096603dc3ae2b71e20f50d10bb67fa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 10f39a3a4252ae603df1a7cf2b4caf1ff4d09b235531e73500e9a7952aedd15f
[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" "10f39a3a4252ae603df1a7cf2b4caf1ff4d09b235531e73500e9a7952aedd15f", kill_on_drop: false }`
[INFO] [stderr]     Checking benchmarking v0.4.9 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.49s
[INFO] running `Command { std: "docker" "inspect" "10f39a3a4252ae603df1a7cf2b4caf1ff4d09b235531e73500e9a7952aedd15f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "10f39a3a4252ae603df1a7cf2b4caf1ff4d09b235531e73500e9a7952aedd15f", kill_on_drop: false }`
[INFO] [stdout] 10f39a3a4252ae603df1a7cf2b4caf1ff4d09b235531e73500e9a7952aedd15f