[INFO] fetching crate register 0.5.1...
[INFO] checking register-0.5.1 against master#ffa2e7ae8fbf9badc035740db949b9dae271c29f for pr-78338
[INFO] extracting crate register 0.5.1 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate register 0.5.1 on toolchain ffa2e7ae8fbf9badc035740db949b9dae271c29f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate register 0.5.1
[INFO] finished tweaking crates.io crate register 0.5.1
[INFO] tweaked toml for crates.io crate register 0.5.1 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate crates.io crate register 0.5.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d24493957599a2a041caf2fc6bdc90aa79ccb7a816b6d1d46b2e656b455fdbf9
[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" "d24493957599a2a041caf2fc6bdc90aa79ccb7a816b6d1d46b2e656b455fdbf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d24493957599a2a041caf2fc6bdc90aa79ccb7a816b6d1d46b2e656b455fdbf9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d24493957599a2a041caf2fc6bdc90aa79ccb7a816b6d1d46b2e656b455fdbf9", kill_on_drop: false }`
[INFO] [stdout] d24493957599a2a041caf2fc6bdc90aa79ccb7a816b6d1d46b2e656b455fdbf9
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+ffa2e7ae8fbf9badc035740db949b9dae271c29f" "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] 07fafae578eec3462c61f256955e2e61572b31959d92b91f90d7f217c4e05cfc
[INFO] running `Command { std: "docker" "start" "-a" "07fafae578eec3462c61f256955e2e61572b31959d92b91f90d7f217c4e05cfc", kill_on_drop: false }`
[INFO] [stderr]     Checking tock-registers v0.5.0
[INFO] [stderr]     Checking register v0.5.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.68s
[INFO] running `Command { std: "docker" "inspect" "07fafae578eec3462c61f256955e2e61572b31959d92b91f90d7f217c4e05cfc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07fafae578eec3462c61f256955e2e61572b31959d92b91f90d7f217c4e05cfc", kill_on_drop: false }`
[INFO] [stdout] 07fafae578eec3462c61f256955e2e61572b31959d92b91f90d7f217c4e05cfc