[INFO] fetching crate grouping_by 0.2.1...
[INFO] checking grouping_by-0.2.1 against master#0d37dca25a51fb900a402c94c8818ad1c2789e30 for pr-77526
[INFO] extracting crate grouping_by 0.2.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate grouping_by 0.2.1 on toolchain 0d37dca25a51fb900a402c94c8818ad1c2789e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate grouping_by 0.2.1
[INFO] finished tweaking crates.io crate grouping_by 0.2.1
[INFO] tweaked toml for crates.io crate grouping_by 0.2.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 3753e0cf093232c2fa6ac2475ed150d9eb077680d883cb84cb409a11c097dadb
[INFO] running `Command { std: "docker" "start" "-a" "3753e0cf093232c2fa6ac2475ed150d9eb077680d883cb84cb409a11c097dadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3753e0cf093232c2fa6ac2475ed150d9eb077680d883cb84cb409a11c097dadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3753e0cf093232c2fa6ac2475ed150d9eb077680d883cb84cb409a11c097dadb", kill_on_drop: false }`
[INFO] [stdout] 3753e0cf093232c2fa6ac2475ed150d9eb077680d883cb84cb409a11c097dadb
[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" "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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+0d37dca25a51fb900a402c94c8818ad1c2789e30" "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] 7c296fdafe47f7d769880c093bcc4bc5612177d8b11b863e2e755021afb6df22
[INFO] running `Command { std: "docker" "start" "-a" "7c296fdafe47f7d769880c093bcc4bc5612177d8b11b863e2e755021afb6df22", kill_on_drop: false }`
[INFO] [stderr]     Checking grouping_by v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.60s
[INFO] running `Command { std: "docker" "inspect" "7c296fdafe47f7d769880c093bcc4bc5612177d8b11b863e2e755021afb6df22", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7c296fdafe47f7d769880c093bcc4bc5612177d8b11b863e2e755021afb6df22", kill_on_drop: false }`
[INFO] [stdout] 7c296fdafe47f7d769880c093bcc4bc5612177d8b11b863e2e755021afb6df22