[INFO] fetching crate doug 1.10.0...
[INFO] checking doug-1.10.0 against beta for pr-78714
[INFO] extracting crate doug 1.10.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate doug 1.10.0 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 doug 1.10.0
[INFO] finished tweaking crates.io crate doug 1.10.0
[INFO] tweaked toml for crates.io crate doug 1.10.0 written to /workspace/builds/worker-1/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-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 5b0cb91238a2e5d383450b43c8ae911c2ebab7745b09948ff7518f6a4b0221ae
[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" "5b0cb91238a2e5d383450b43c8ae911c2ebab7745b09948ff7518f6a4b0221ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5b0cb91238a2e5d383450b43c8ae911c2ebab7745b09948ff7518f6a4b0221ae", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5b0cb91238a2e5d383450b43c8ae911c2ebab7745b09948ff7518f6a4b0221ae", kill_on_drop: false }`
[INFO] [stdout] 5b0cb91238a2e5d383450b43c8ae911c2ebab7745b09948ff7518f6a4b0221ae
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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] 6a3b53b008b62474322635dce140114f6c713df69d9e5ed51132aca86097ca35
[INFO] running `Command { std: "docker" "start" "-a" "6a3b53b008b62474322635dce140114f6c713df69d9e5ed51132aca86097ca35", kill_on_drop: false }`
[INFO] [stderr]     Checking scanlex v0.1.4
[INFO] [stderr]     Checking colored v1.9.3
[INFO] [stderr]     Checking chrono-english v0.1.4
[INFO] [stderr]     Checking doug v1.10.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.77s
[INFO] running `Command { std: "docker" "inspect" "6a3b53b008b62474322635dce140114f6c713df69d9e5ed51132aca86097ca35", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6a3b53b008b62474322635dce140114f6c713df69d9e5ed51132aca86097ca35", kill_on_drop: false }`
[INFO] [stdout] 6a3b53b008b62474322635dce140114f6c713df69d9e5ed51132aca86097ca35