[INFO] fetching crate effective-limits 0.5.2...
[INFO] checking effective-limits-0.5.2 against beta for pr-78714
[INFO] extracting crate effective-limits 0.5.2 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate effective-limits 0.5.2 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 effective-limits 0.5.2
[INFO] finished tweaking crates.io crate effective-limits 0.5.2
[INFO] tweaked toml for crates.io crate effective-limits 0.5.2 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate crates.io crate effective-limits 0.5.2 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-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] e471e74118c651a42a90f37d086bea3259b60dc15aee6b7fa0ba37d0a90ffab1
[INFO] running `Command { std: "docker" "start" "-a" "e471e74118c651a42a90f37d086bea3259b60dc15aee6b7fa0ba37d0a90ffab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e471e74118c651a42a90f37d086bea3259b60dc15aee6b7fa0ba37d0a90ffab1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e471e74118c651a42a90f37d086bea3259b60dc15aee6b7fa0ba37d0a90ffab1", kill_on_drop: false }`
[INFO] [stdout] e471e74118c651a42a90f37d086bea3259b60dc15aee6b7fa0ba37d0a90ffab1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] 458c88f3e6476ef4b516200d4e9b432f2e6e15ca5e7664c8dad007d1d17ba331
[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" "458c88f3e6476ef4b516200d4e9b432f2e6e15ca5e7664c8dad007d1d17ba331", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling cc v1.0.60
[INFO] [stderr]    Compiling sys-info v0.6.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking effective-limits v0.5.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 11.33s
[INFO] running `Command { std: "docker" "inspect" "458c88f3e6476ef4b516200d4e9b432f2e6e15ca5e7664c8dad007d1d17ba331", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "458c88f3e6476ef4b516200d4e9b432f2e6e15ca5e7664c8dad007d1d17ba331", kill_on_drop: false }`
[INFO] [stdout] 458c88f3e6476ef4b516200d4e9b432f2e6e15ca5e7664c8dad007d1d17ba331