[INFO] fetching crate json-checker 0.1.1...
[INFO] documenting json-checker-0.1.1 against 1.47.0 for beta-1.48-rustdoc-1
[INFO] extracting crate json-checker 0.1.1 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate json-checker 0.1.1 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 json-checker 0.1.1
[INFO] finished tweaking crates.io crate json-checker 0.1.1
[INFO] tweaked toml for crates.io crate json-checker 0.1.1 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate crates.io crate json-checker 0.1.1 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-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" "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] 1e6cc47b2a6e5f123fa78d89199eb220b793bedc528b739ac522a5a9d0efc7e5
[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" "1e6cc47b2a6e5f123fa78d89199eb220b793bedc528b739ac522a5a9d0efc7e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1e6cc47b2a6e5f123fa78d89199eb220b793bedc528b739ac522a5a9d0efc7e5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e6cc47b2a6e5f123fa78d89199eb220b793bedc528b739ac522a5a9d0efc7e5", kill_on_drop: false }`
[INFO] [stdout] 1e6cc47b2a6e5f123fa78d89199eb220b793bedc528b739ac522a5a9d0efc7e5
[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" "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] a008b284b0a2f4da58de5fc05e1cfc59206062125c4edd5d9de26890169c5076
[INFO] running `Command { std: "docker" "start" "-a" "a008b284b0a2f4da58de5fc05e1cfc59206062125c4edd5d9de26890169c5076", kill_on_drop: false }`
[INFO] [stderr]    Compiling cc v1.0.40
[INFO] [stderr]    Compiling pkg-config v0.3.15
[INFO] [stderr]    Compiling ncurses v5.99.0
[INFO] [stderr]    Compiling json-checker v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting json-checker v0.1.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.54s
[INFO] running `Command { std: "docker" "inspect" "a008b284b0a2f4da58de5fc05e1cfc59206062125c4edd5d9de26890169c5076", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a008b284b0a2f4da58de5fc05e1cfc59206062125c4edd5d9de26890169c5076", kill_on_drop: false }`
[INFO] [stdout] a008b284b0a2f4da58de5fc05e1cfc59206062125c4edd5d9de26890169c5076
