[INFO] fetching crate tracing-json 0.1.0...
[INFO] documenting tracing-json-0.1.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate tracing-json 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate tracing-json 0.1.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-json 0.1.0
[INFO] finished tweaking crates.io crate tracing-json 0.1.0
[INFO] tweaked toml for crates.io crate tracing-json 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate tracing-json 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.46.0" "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] 8b02d7fb181b731b28904106cd836bf3efd6ce80df4e2f722a42fc00e94712a7
[INFO] running `Command { std: "docker" "start" "-a" "8b02d7fb181b731b28904106cd836bf3efd6ce80df4e2f722a42fc00e94712a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b02d7fb181b731b28904106cd836bf3efd6ce80df4e2f722a42fc00e94712a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b02d7fb181b731b28904106cd836bf3efd6ce80df4e2f722a42fc00e94712a7", kill_on_drop: false }`
[INFO] [stdout] 8b02d7fb181b731b28904106cd836bf3efd6ce80df4e2f722a42fc00e94712a7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 798396c4e1233de57accbe9b648aca2e69a5949e715e12f27cb9a8d828093745
[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" "798396c4e1233de57accbe9b648aca2e69a5949e715e12f27cb9a8d828093745", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.31
[INFO] [stderr]    Compiling serde_json v1.0.55
[INFO] [stderr]     Checking tracing-subscriber v0.2.5
[INFO] [stderr]     Checking tracing-log v0.1.1
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]    Compiling serde_derive v1.0.111
[INFO] [stderr]    Compiling thiserror-impl v1.0.19
[INFO] [stderr]    Compiling tracing-attributes v0.1.8
[INFO] [stderr]     Checking thiserror v1.0.19
[INFO] [stderr]     Checking tracing v0.1.15
[INFO] [stderr]     Checking serde v1.0.111
[INFO] [stderr]  Documenting tracing-json v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 42.96s
[INFO] running `Command { std: "docker" "inspect" "798396c4e1233de57accbe9b648aca2e69a5949e715e12f27cb9a8d828093745", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "798396c4e1233de57accbe9b648aca2e69a5949e715e12f27cb9a8d828093745", kill_on_drop: false }`
[INFO] [stdout] 798396c4e1233de57accbe9b648aca2e69a5949e715e12f27cb9a8d828093745