[INFO] fetching crate proximity-sort 1.0.7...
[INFO] checking proximity-sort-1.0.7 against beta for pr-78714
[INFO] extracting crate proximity-sort 1.0.7 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate proximity-sort 1.0.7 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 proximity-sort 1.0.7
[INFO] finished tweaking crates.io crate proximity-sort 1.0.7
[INFO] tweaked toml for crates.io crate proximity-sort 1.0.7 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate proximity-sort 1.0.7 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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] bff33accc8af655dc13ee2875781309f2f8ab7076eaf959858c03db8807c855c
[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" "bff33accc8af655dc13ee2875781309f2f8ab7076eaf959858c03db8807c855c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bff33accc8af655dc13ee2875781309f2f8ab7076eaf959858c03db8807c855c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bff33accc8af655dc13ee2875781309f2f8ab7076eaf959858c03db8807c855c", kill_on_drop: false }`
[INFO] [stdout] bff33accc8af655dc13ee2875781309f2f8ab7076eaf959858c03db8807c855c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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] 1d724a855f334e9fce03bbfe937c7e492472290c44c087ede6398caf287231f5
[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" "1d724a855f334e9fce03bbfe937c7e492472290c44c087ede6398caf287231f5", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.74
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking proximity-sort v1.0.7 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.55s
[INFO] running `Command { std: "docker" "inspect" "1d724a855f334e9fce03bbfe937c7e492472290c44c087ede6398caf287231f5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1d724a855f334e9fce03bbfe937c7e492472290c44c087ede6398caf287231f5", kill_on_drop: false }`
[INFO] [stdout] 1d724a855f334e9fce03bbfe937c7e492472290c44c087ede6398caf287231f5