[INFO] fetching crate json-spanned-value 0.2.2...
[INFO] documenting json-spanned-value-0.2.2 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate json-spanned-value 0.2.2 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate json-spanned-value 0.2.2 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 json-spanned-value 0.2.2
[INFO] finished tweaking crates.io crate json-spanned-value 0.2.2
[INFO] tweaked toml for crates.io crate json-spanned-value 0.2.2 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate json-spanned-value 0.2.2 already has a lockfile, it will not be regenerated
[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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stdout] bee19f75f66b8d48eb34c9327863d2912debba9bfd53a496a0136d5982d72f19
[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" "bee19f75f66b8d48eb34c9327863d2912debba9bfd53a496a0136d5982d72f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bee19f75f66b8d48eb34c9327863d2912debba9bfd53a496a0136d5982d72f19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bee19f75f66b8d48eb34c9327863d2912debba9bfd53a496a0136d5982d72f19", kill_on_drop: false }`
[INFO] [stdout] bee19f75f66b8d48eb34c9327863d2912debba9bfd53a496a0136d5982d72f19
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] ff29d270ed317299d5ce407e22dd489a698e1c4306633454bc496351b0dc47be
[INFO] running `Command { std: "docker" "start" "-a" "ff29d270ed317299d5ce407e22dd489a698e1c4306633454bc496351b0dc47be", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.42
[INFO] [stderr]    Compiling serde_derive v1.0.116
[INFO] [stderr]     Checking serde v1.0.116
[INFO] [stderr]     Checking serde_json v1.0.58
[INFO] [stderr]  Documenting json-spanned-value v0.2.2 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.06s
[INFO] running `Command { std: "docker" "inspect" "ff29d270ed317299d5ce407e22dd489a698e1c4306633454bc496351b0dc47be", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff29d270ed317299d5ce407e22dd489a698e1c4306633454bc496351b0dc47be", kill_on_drop: false }`
[INFO] [stdout] ff29d270ed317299d5ce407e22dd489a698e1c4306633454bc496351b0dc47be
