[INFO] fetching crate xhtml_minimizer 0.1.4...
[INFO] checking xhtml_minimizer-0.1.4 against beta for pr-78714
[INFO] extracting crate xhtml_minimizer 0.1.4 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate xhtml_minimizer 0.1.4 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 xhtml_minimizer 0.1.4
[INFO] finished tweaking crates.io crate xhtml_minimizer 0.1.4
[INFO] tweaked toml for crates.io crate xhtml_minimizer 0.1.4 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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/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] 1a7fa56a5de0a240578770bffa4dcb4404db0be2cb8b2743d0108d87c5c0cff3
[INFO] running `Command { std: "docker" "start" "-a" "1a7fa56a5de0a240578770bffa4dcb4404db0be2cb8b2743d0108d87c5c0cff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a7fa56a5de0a240578770bffa4dcb4404db0be2cb8b2743d0108d87c5c0cff3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a7fa56a5de0a240578770bffa4dcb4404db0be2cb8b2743d0108d87c5c0cff3", kill_on_drop: false }`
[INFO] [stdout] 1a7fa56a5de0a240578770bffa4dcb4404db0be2cb8b2743d0108d87c5c0cff3
[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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 97050474f341285f103fe0b80433e9565658acc084e639227d530c7afa985fa8
[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" "97050474f341285f103fe0b80433e9565658acc084e639227d530c7afa985fa8", kill_on_drop: false }`
[INFO] [stderr]     Checking xml_tokens v0.1.5
[INFO] [stderr]     Checking xhtml_minimizer v0.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.17s
[INFO] running `Command { std: "docker" "inspect" "97050474f341285f103fe0b80433e9565658acc084e639227d530c7afa985fa8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "97050474f341285f103fe0b80433e9565658acc084e639227d530c7afa985fa8", kill_on_drop: false }`
[INFO] [stdout] 97050474f341285f103fe0b80433e9565658acc084e639227d530c7afa985fa8