[INFO] fetching crate async-std-resolver 0.20.0-alpha.1...
[INFO] documenting async-std-resolver-0.20.0-alpha.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate async-std-resolver 0.20.0-alpha.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate async-std-resolver 0.20.0-alpha.1 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-std-resolver 0.20.0-alpha.1
[INFO] finished tweaking crates.io crate async-std-resolver 0.20.0-alpha.1
[INFO] tweaked toml for crates.io crate async-std-resolver 0.20.0-alpha.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0fd8f62248bc1d904df1bc6f866ebd48c9751e685a129ac9f543ee7f4c7dddfe
[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" "0fd8f62248bc1d904df1bc6f866ebd48c9751e685a129ac9f543ee7f4c7dddfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0fd8f62248bc1d904df1bc6f866ebd48c9751e685a129ac9f543ee7f4c7dddfe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0fd8f62248bc1d904df1bc6f866ebd48c9751e685a129ac9f543ee7f4c7dddfe", kill_on_drop: false }`
[INFO] [stdout] 0fd8f62248bc1d904df1bc6f866ebd48c9751e685a129ac9f543ee7f4c7dddfe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "RUSTDOCFLAGS=--cap-lints=warn" "-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-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3dfaba61e14ccb67c51849a7e2ff91f77fe0f147a1c6ec4ccbae16d1d10d8079
[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" "3dfaba61e14ccb67c51849a7e2ff91f77fe0f147a1c6ec4ccbae16d1d10d8079", kill_on_drop: false }`
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling enum-as-inner v0.3.3
[INFO] [stderr]    Compiling async-trait v0.1.40
[INFO] [stderr]     Checking futures-util v0.3.5
[INFO] [stderr]     Checking async-std v1.6.3
[INFO] [stderr]     Checking thiserror v1.0.20
[INFO] [stderr]     Checking trust-dns-proto v0.20.0-alpha.1
[INFO] [stderr]     Checking futures v0.3.5
[INFO] [stderr]     Checking trust-dns-resolver v0.20.0-alpha.1
[INFO] [stderr]  Documenting async-std-resolver v0.20.0-alpha.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.78s
[INFO] running `Command { std: "docker" "inspect" "3dfaba61e14ccb67c51849a7e2ff91f77fe0f147a1c6ec4ccbae16d1d10d8079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3dfaba61e14ccb67c51849a7e2ff91f77fe0f147a1c6ec4ccbae16d1d10d8079", kill_on_drop: false }`
[INFO] [stdout] 3dfaba61e14ccb67c51849a7e2ff91f77fe0f147a1c6ec4ccbae16d1d10d8079