[INFO] fetching crate tcp-clone 0.99.4...
[INFO] checking tcp-clone-0.99.4 against beta for pr-78714
[INFO] extracting crate tcp-clone 0.99.4 into /workspace/builds/worker-11/source
[INFO] validating manifest of crates.io crate tcp-clone 0.99.4 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 tcp-clone 0.99.4
[INFO] finished tweaking crates.io crate tcp-clone 0.99.4
[INFO] tweaked toml for crates.io crate tcp-clone 0.99.4 written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate crates.io crate tcp-clone 0.99.4 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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] e4b283e1febe49bfb737d77a3e2ebaa218bb4d3403169a6821e0a1c445fdd7ce
[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" "e4b283e1febe49bfb737d77a3e2ebaa218bb4d3403169a6821e0a1c445fdd7ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e4b283e1febe49bfb737d77a3e2ebaa218bb4d3403169a6821e0a1c445fdd7ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e4b283e1febe49bfb737d77a3e2ebaa218bb4d3403169a6821e0a1c445fdd7ce", kill_on_drop: false }`
[INFO] [stdout] e4b283e1febe49bfb737d77a3e2ebaa218bb4d3403169a6821e0a1c445fdd7ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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] 810b3dc201b1cdcf3d03abb765c891b498f96956acf47b50aa927bfe957ee4d3
[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" "810b3dc201b1cdcf3d03abb765c891b498f96956acf47b50aa927bfe957ee4d3", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.8
[INFO] [stderr]     Checking toml v0.5.5
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking broadcaster v0.2.6
[INFO] [stderr]     Checking async-std v1.1.0
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]     Checking tcp-clone v0.99.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.61s
[INFO] running `Command { std: "docker" "inspect" "810b3dc201b1cdcf3d03abb765c891b498f96956acf47b50aa927bfe957ee4d3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "810b3dc201b1cdcf3d03abb765c891b498f96956acf47b50aa927bfe957ee4d3", kill_on_drop: false }`
[INFO] [stdout] 810b3dc201b1cdcf3d03abb765c891b498f96956acf47b50aa927bfe957ee4d3