[INFO] crate rustc-serialize 0.3.24 is already in cache
[INFO] documenting rustc-serialize-0.3.24 against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] extracting crate rustc-serialize 0.3.24 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate rustc-serialize 0.3.24 on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rustc-serialize 0.3.24
[INFO] finished tweaking crates.io crate rustc-serialize 0.3.24
[INFO] tweaked toml for crates.io crate rustc-serialize 0.3.24 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 89813c5e3941df66d5fcfc35fb533c55cfd41eac33e76b19f462fb4be9b28250
[INFO] running `Command { std: "docker" "start" "-a" "89813c5e3941df66d5fcfc35fb533c55cfd41eac33e76b19f462fb4be9b28250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89813c5e3941df66d5fcfc35fb533c55cfd41eac33e76b19f462fb4be9b28250", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89813c5e3941df66d5fcfc35fb533c55cfd41eac33e76b19f462fb4be9b28250", kill_on_drop: false }`
[INFO] [stdout] 89813c5e3941df66d5fcfc35fb533c55cfd41eac33e76b19f462fb4be9b28250
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d1b5414589f97dbc0e0e8d97faeac27e36cd2d1652100c2942ac82f2d60b0b04
[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" "d1b5414589f97dbc0e0e8d97faeac27e36cd2d1652100c2942ac82f2d60b0b04", kill_on_drop: false }`
[INFO] [stderr]  Documenting rustc-serialize v0.3.24 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[3]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> src/json.rs:1257:25
[INFO] [stdout]      |
[INFO] [stdout] 1257 | /// For example foo.bar[3].x
[INFO] [stdout]      |                         ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(intra_doc_link_resolution_failure)]` on by default
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `[3]` cannot be resolved, ignoring it.
[INFO] [stdout]     --> src/json.rs:1265:65
[INFO] [stdout]      |
[INFO] [stdout] 1265 | /// StackElements compositing the stack that represents foo.bar[3].x
[INFO] [stdout]      |                                                                 ^ cannot be resolved, ignoring
[INFO] [stdout]      |
[INFO] [stdout]      = help: to escape `[` and `]` characters, just add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.67s
[INFO] running `Command { std: "docker" "inspect" "d1b5414589f97dbc0e0e8d97faeac27e36cd2d1652100c2942ac82f2d60b0b04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1b5414589f97dbc0e0e8d97faeac27e36cd2d1652100c2942ac82f2d60b0b04", kill_on_drop: false }`
[INFO] [stdout] d1b5414589f97dbc0e0e8d97faeac27e36cd2d1652100c2942ac82f2d60b0b04