[INFO] fetching crate cfg-expr 0.8.0...
[INFO] documenting cfg-expr-0.8.0 against 1.54.0 for beta-1.55-rustdoc-1
[INFO] extracting crate cfg-expr 0.8.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate cfg-expr 0.8.0 on toolchain 1.54.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate cfg-expr 0.8.0
[INFO] finished tweaking crates.io crate cfg-expr 0.8.0
[INFO] tweaked toml for crates.io crate cfg-expr 0.8.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate cfg-expr 0.8.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.54.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5e71f786505512cca6466d1ec2ac96adac4a9a0a272917cdaffe7bbab1bc7652
[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" "5e71f786505512cca6466d1ec2ac96adac4a9a0a272917cdaffe7bbab1bc7652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5e71f786505512cca6466d1ec2ac96adac4a9a0a272917cdaffe7bbab1bc7652", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5e71f786505512cca6466d1ec2ac96adac4a9a0a272917cdaffe7bbab1bc7652", kill_on_drop: false }`
[INFO] [stdout] 5e71f786505512cca6466d1ec2ac96adac4a9a0a272917cdaffe7bbab1bc7652
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+1.54.0" "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] 75dbde66315030cbf197a515b300eb311af1f1d5b77d1f6da09f06a032c9d26f
[INFO] running `Command { std: "docker" "start" "-a" "75dbde66315030cbf197a515b300eb311af1f1d5b77d1f6da09f06a032c9d26f", kill_on_drop: false }`
[INFO] [stderr]  Documenting cfg-expr v0.8.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.85s
[INFO] running `Command { std: "docker" "inspect" "75dbde66315030cbf197a515b300eb311af1f1d5b77d1f6da09f06a032c9d26f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "75dbde66315030cbf197a515b300eb311af1f1d5b77d1f6da09f06a032c9d26f", kill_on_drop: false }`
[INFO] [stdout] 75dbde66315030cbf197a515b300eb311af1f1d5b77d1f6da09f06a032c9d26f
