[INFO] fetching crate tracing-tracy 0.2.0...
[INFO] documenting tracing-tracy-0.2.0 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate tracing-tracy 0.2.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate tracing-tracy 0.2.0 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tracing-tracy 0.2.0
[INFO] finished tweaking crates.io crate tracing-tracy 0.2.0
[INFO] tweaked toml for crates.io crate tracing-tracy 0.2.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tracy-client v0.8.0
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a34842324df36531e3a33aa1f8e0a13050a2319e7d7b703081ff3d59b5c3935a
[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" "a34842324df36531e3a33aa1f8e0a13050a2319e7d7b703081ff3d59b5c3935a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a34842324df36531e3a33aa1f8e0a13050a2319e7d7b703081ff3d59b5c3935a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34842324df36531e3a33aa1f8e0a13050a2319e7d7b703081ff3d59b5c3935a", kill_on_drop: false }`
[INFO] [stdout] a34842324df36531e3a33aa1f8e0a13050a2319e7d7b703081ff3d59b5c3935a
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ef16249c47bd50c8ec39e9e0e3a161a71fe621d8e3e8362e3514ba3f37a62349
[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" "ef16249c47bd50c8ec39e9e0e3a161a71fe621d8e3e8362e3514ba3f37a62349", kill_on_drop: false }`
[INFO] [stderr]    Compiling tracy-client-sys v0.9.0
[INFO] [stderr]     Checking tracing-subscriber v0.2.11
[INFO] [stderr]     Checking tracy-client v0.8.0
[INFO] [stderr]  Documenting tracing-tracy v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.02s
[INFO] running `Command { std: "docker" "inspect" "ef16249c47bd50c8ec39e9e0e3a161a71fe621d8e3e8362e3514ba3f37a62349", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ef16249c47bd50c8ec39e9e0e3a161a71fe621d8e3e8362e3514ba3f37a62349", kill_on_drop: false }`
[INFO] [stdout] ef16249c47bd50c8ec39e9e0e3a161a71fe621d8e3e8362e3514ba3f37a62349