[INFO] fetching crate clockwork 0.0.1...
[INFO] checking clockwork-0.0.1 against beta for pr-78714
[INFO] extracting crate clockwork 0.0.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate clockwork 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 clockwork 0.0.1
[INFO] finished tweaking crates.io crate clockwork 0.0.1
[INFO] tweaked toml for crates.io crate clockwork 0.0.1 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 803651f15c70bfd00e09ab0b0c126b4c8b3a68b4f4e27b5d3201b29e2a6f2d18
[INFO] running `Command { std: "docker" "start" "-a" "803651f15c70bfd00e09ab0b0c126b4c8b3a68b4f4e27b5d3201b29e2a6f2d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "803651f15c70bfd00e09ab0b0c126b4c8b3a68b4f4e27b5d3201b29e2a6f2d18", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "803651f15c70bfd00e09ab0b0c126b4c8b3a68b4f4e27b5d3201b29e2a6f2d18", kill_on_drop: false }`
[INFO] [stdout] 803651f15c70bfd00e09ab0b0c126b4c8b3a68b4f4e27b5d3201b29e2a6f2d18
[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] 059b6cffc596e1ed729918f530f97d59a4f8f84399d32f44705d798868c20d4a
[INFO] running `Command { std: "docker" "start" "-a" "059b6cffc596e1ed729918f530f97d59a4f8f84399d32f44705d798868c20d4a", kill_on_drop: false }`
[INFO] [stderr]     Checking clockwork v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.08s
[INFO] running `Command { std: "docker" "inspect" "059b6cffc596e1ed729918f530f97d59a4f8f84399d32f44705d798868c20d4a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "059b6cffc596e1ed729918f530f97d59a4f8f84399d32f44705d798868c20d4a", kill_on_drop: false }`
[INFO] [stdout] 059b6cffc596e1ed729918f530f97d59a4f8f84399d32f44705d798868c20d4a