[INFO] fetching crate proc-mounts 0.2.4...
[INFO] checking proc-mounts-0.2.4 against beta for pr-78714
[INFO] extracting crate proc-mounts 0.2.4 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate proc-mounts 0.2.4 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 proc-mounts 0.2.4
[INFO] finished tweaking crates.io crate proc-mounts 0.2.4
[INFO] tweaked toml for crates.io crate proc-mounts 0.2.4 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate proc-mounts 0.2.4 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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d6e9a5023975fbfffd88489b4cf16eab66f852593bda12a2f3d8002e3374b0fe
[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" "d6e9a5023975fbfffd88489b4cf16eab66f852593bda12a2f3d8002e3374b0fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d6e9a5023975fbfffd88489b4cf16eab66f852593bda12a2f3d8002e3374b0fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6e9a5023975fbfffd88489b4cf16eab66f852593bda12a2f3d8002e3374b0fe", kill_on_drop: false }`
[INFO] [stdout] d6e9a5023975fbfffd88489b4cf16eab66f852593bda12a2f3d8002e3374b0fe
[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@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f2881d9629e5c10c9fdfaee2ce7b1a73ecbb0ae16e0d2a044a34a363651cda06
[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" "f2881d9629e5c10c9fdfaee2ce7b1a73ecbb0ae16e0d2a044a34a363651cda06", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.17
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.3
[INFO] [stderr]    Compiling rustversion v1.0.2
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling err-derive v0.2.4
[INFO] [stderr]     Checking partition-identity v0.2.8
[INFO] [stderr]     Checking proc-mounts v0.2.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 27.74s
[INFO] running `Command { std: "docker" "inspect" "f2881d9629e5c10c9fdfaee2ce7b1a73ecbb0ae16e0d2a044a34a363651cda06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2881d9629e5c10c9fdfaee2ce7b1a73ecbb0ae16e0d2a044a34a363651cda06", kill_on_drop: false }`
[INFO] [stdout] f2881d9629e5c10c9fdfaee2ce7b1a73ecbb0ae16e0d2a044a34a363651cda06