[INFO] fetching crate natls 1.2.10...
[INFO] checking natls-1.2.10 against beta for pr-78714
[INFO] extracting crate natls 1.2.10 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate natls 1.2.10 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 natls 1.2.10
[INFO] finished tweaking crates.io crate natls 1.2.10
[INFO] tweaked toml for crates.io crate natls 1.2.10 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate crates.io crate natls 1.2.10 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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 1b2270b9bbbc65f6eddd1ec7d2d095372b43e955f5f31ebeda4336f4d0db28b5
[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" "1b2270b9bbbc65f6eddd1ec7d2d095372b43e955f5f31ebeda4336f4d0db28b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1b2270b9bbbc65f6eddd1ec7d2d095372b43e955f5f31ebeda4336f4d0db28b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1b2270b9bbbc65f6eddd1ec7d2d095372b43e955f5f31ebeda4336f4d0db28b5", kill_on_drop: false }`
[INFO] [stdout] 1b2270b9bbbc65f6eddd1ec7d2d095372b43e955f5f31ebeda4336f4d0db28b5
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 70f291e2e0748f636c816b65c43b4080f4a5ad95b44d2d51dab99267a526d9de
[INFO] running `Command { std: "docker" "start" "-a" "70f291e2e0748f636c816b65c43b4080f4a5ad95b44d2d51dab99267a526d9de", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.46
[INFO] [stderr]     Checking filetime v0.1.15
[INFO] [stderr]     Checking users v0.11.0
[INFO] [stderr]     Checking pretty-bytes v0.2.2
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling structopt-derive v0.4.13
[INFO] [stderr]     Checking structopt v0.3.20
[INFO] [stderr]     Checking natls v1.2.10 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 26.40s
[INFO] running `Command { std: "docker" "inspect" "70f291e2e0748f636c816b65c43b4080f4a5ad95b44d2d51dab99267a526d9de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "70f291e2e0748f636c816b65c43b4080f4a5ad95b44d2d51dab99267a526d9de", kill_on_drop: false }`
[INFO] [stdout] 70f291e2e0748f636c816b65c43b4080f4a5ad95b44d2d51dab99267a526d9de