[INFO] fetching crate circle-rs 0.3.3...
[INFO] checking circle-rs-0.3.3 against try#6024cfef3a82f9a7688f07054f1650081bad3af5 for pr-74130
[INFO] extracting crate circle-rs 0.3.3 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate circle-rs 0.3.3 on toolchain 6024cfef3a82f9a7688f07054f1650081bad3af5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate circle-rs 0.3.3
[INFO] finished tweaking crates.io crate circle-rs 0.3.3
[INFO] tweaked toml for crates.io crate circle-rs 0.3.3 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate circle-rs 0.3.3 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6fdd52ca53d89dc836e44d44a40f27d147382ff11e15210cd1f790a9f56dc884
[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" "6fdd52ca53d89dc836e44d44a40f27d147382ff11e15210cd1f790a9f56dc884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6fdd52ca53d89dc836e44d44a40f27d147382ff11e15210cd1f790a9f56dc884", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fdd52ca53d89dc836e44d44a40f27d147382ff11e15210cd1f790a9f56dc884", kill_on_drop: false }`
[INFO] [stdout] 6fdd52ca53d89dc836e44d44a40f27d147382ff11e15210cd1f790a9f56dc884
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+6024cfef3a82f9a7688f07054f1650081bad3af5" "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] e01498fded657a8c7533939608d7fd337974bc49d0e35c9379e694f65fa34b94
[INFO] running `Command { std: "docker" "start" "-a" "e01498fded657a8c7533939608d7fd337974bc49d0e35c9379e694f65fa34b94", kill_on_drop: false }`
[INFO] [stderr]     Checking circle-rs v0.3.3 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.76s
[INFO] running `Command { std: "docker" "inspect" "e01498fded657a8c7533939608d7fd337974bc49d0e35c9379e694f65fa34b94", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e01498fded657a8c7533939608d7fd337974bc49d0e35c9379e694f65fa34b94", kill_on_drop: false }`
[INFO] [stdout] e01498fded657a8c7533939608d7fd337974bc49d0e35c9379e694f65fa34b94