[INFO] fetching crate async-lock 1.1.4...
[INFO] documenting async-lock-1.1.4 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate async-lock 1.1.4 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate async-lock 1.1.4 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate async-lock 1.1.4
[INFO] finished tweaking crates.io crate async-lock 1.1.4
[INFO] tweaked toml for crates.io crate async-lock 1.1.4 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate async-lock 1.1.4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0164b5c4e7fdd9922a20f1e1503544e73c994254d840ed7cffa04328b5e3e815
[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" "0164b5c4e7fdd9922a20f1e1503544e73c994254d840ed7cffa04328b5e3e815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0164b5c4e7fdd9922a20f1e1503544e73c994254d840ed7cffa04328b5e3e815", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0164b5c4e7fdd9922a20f1e1503544e73c994254d840ed7cffa04328b5e3e815", kill_on_drop: false }`
[INFO] [stdout] 0164b5c4e7fdd9922a20f1e1503544e73c994254d840ed7cffa04328b5e3e815
[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" "RUSTDOCFLAGS=--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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--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] 4da5d38937cefb65ff42e327ae8498f44961aef2cb2224bdae88b11dabe09f7b
[INFO] running `Command { std: "docker" "start" "-a" "4da5d38937cefb65ff42e327ae8498f44961aef2cb2224bdae88b11dabe09f7b", kill_on_drop: false }`
[INFO] [stderr]     Checking event-listener v2.0.1
[INFO] [stderr]  Documenting async-lock v1.1.4 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.56s
[INFO] running `Command { std: "docker" "inspect" "4da5d38937cefb65ff42e327ae8498f44961aef2cb2224bdae88b11dabe09f7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4da5d38937cefb65ff42e327ae8498f44961aef2cb2224bdae88b11dabe09f7b", kill_on_drop: false }`
[INFO] [stdout] 4da5d38937cefb65ff42e327ae8498f44961aef2cb2224bdae88b11dabe09f7b