[INFO] fetching crate docker_extract 0.2.1...
[INFO] documenting docker_extract-0.2.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate docker_extract 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate docker_extract 0.2.1 on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate docker_extract 0.2.1
[INFO] finished tweaking crates.io crate docker_extract 0.2.1
[INFO] tweaked toml for crates.io crate docker_extract 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.47.0" "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] 9f02920e951e9b906adbd911261c9b7475e97799ee8cf74d47bfea427d704bd0
[INFO] running `Command { std: "docker" "start" "-a" "9f02920e951e9b906adbd911261c9b7475e97799ee8cf74d47bfea427d704bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f02920e951e9b906adbd911261c9b7475e97799ee8cf74d47bfea427d704bd0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f02920e951e9b906adbd911261c9b7475e97799ee8cf74d47bfea427d704bd0", kill_on_drop: false }`
[INFO] [stdout] 9f02920e951e9b906adbd911261c9b7475e97799ee8cf74d47bfea427d704bd0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "+1.47.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a28654567e65ca4d56c5851c8aae8e0bb95fc24f88ab92267d1b05b06aa51a6f
[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" "a28654567e65ca4d56c5851c8aae8e0bb95fc24f88ab92267d1b05b06aa51a6f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling ident_case v1.0.1
[INFO] [stderr]    Compiling strsim v0.9.3
[INFO] [stderr]    Compiling serde v1.0.117
[INFO] [stderr]    Compiling derive_builder v0.9.0
[INFO] [stderr]     Checking xattr v0.2.2
[INFO] [stderr]     Checking tar v0.4.30
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]     Checking serde_json v1.0.59
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]  Documenting docker_extract v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.84s
[INFO] running `Command { std: "docker" "inspect" "a28654567e65ca4d56c5851c8aae8e0bb95fc24f88ab92267d1b05b06aa51a6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a28654567e65ca4d56c5851c8aae8e0bb95fc24f88ab92267d1b05b06aa51a6f", kill_on_drop: false }`
[INFO] [stdout] a28654567e65ca4d56c5851c8aae8e0bb95fc24f88ab92267d1b05b06aa51a6f
