[INFO] fetching crate option-filter 1.0.2...
[INFO] checking option-filter-1.0.2 against beta for pr-78714
[INFO] extracting crate option-filter 1.0.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate option-filter 1.0.2 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 option-filter 1.0.2
[INFO] finished tweaking crates.io crate option-filter 1.0.2
[INFO] tweaked toml for crates.io crate option-filter 1.0.2 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] e89e12d02131841c288d2899fba315aa40c6d50722c1d4404391bd0d677eb63d
[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" "e89e12d02131841c288d2899fba315aa40c6d50722c1d4404391bd0d677eb63d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e89e12d02131841c288d2899fba315aa40c6d50722c1d4404391bd0d677eb63d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e89e12d02131841c288d2899fba315aa40c6d50722c1d4404391bd0d677eb63d", kill_on_drop: false }`
[INFO] [stdout] e89e12d02131841c288d2899fba315aa40c6d50722c1d4404391bd0d677eb63d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] d930a1f868a7a924c0f7b90f13b367c9385c4c9d2e057c8839cee6c5069bbf1f
[INFO] running `Command { std: "docker" "start" "-a" "d930a1f868a7a924c0f7b90f13b367c9385c4c9d2e057c8839cee6c5069bbf1f", kill_on_drop: false }`
[INFO] [stderr]     Checking option-filter v1.0.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.21s
[INFO] running `Command { std: "docker" "inspect" "d930a1f868a7a924c0f7b90f13b367c9385c4c9d2e057c8839cee6c5069bbf1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d930a1f868a7a924c0f7b90f13b367c9385c4c9d2e057c8839cee6c5069bbf1f", kill_on_drop: false }`
[INFO] [stdout] d930a1f868a7a924c0f7b90f13b367c9385c4c9d2e057c8839cee6c5069bbf1f