[INFO] crate rand_core 0.5.1 is already in cache
[INFO] documenting rand_core-0.5.1 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate rand_core 0.5.1 into /workspace/builds/worker-13/source
[INFO] validating manifest of crates.io crate rand_core 0.5.1 on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rand_core 0.5.1
[INFO] finished tweaking crates.io crate rand_core 0.5.1
[INFO] tweaked toml for crates.io crate rand_core 0.5.1 written to /workspace/builds/worker-13/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "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] fd5c04160cb057c9ac58013d0b14bc54ef062c464adf4d4e97a1f55f52f51bbf
[INFO] running `Command { std: "docker" "start" "-a" "fd5c04160cb057c9ac58013d0b14bc54ef062c464adf4d4e97a1f55f52f51bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fd5c04160cb057c9ac58013d0b14bc54ef062c464adf4d4e97a1f55f52f51bbf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fd5c04160cb057c9ac58013d0b14bc54ef062c464adf4d4e97a1f55f52f51bbf", kill_on_drop: false }`
[INFO] [stdout] fd5c04160cb057c9ac58013d0b14bc54ef062c464adf4d4e97a1f55f52f51bbf
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-13/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] eb3f822298c1400751a02b8260b8211432c20b8081d68323d47f24e2f17e399c
[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" "eb3f822298c1400751a02b8260b8211432c20b8081d68323d47f24e2f17e399c", kill_on_drop: false }`
[INFO] [stderr]  Documenting rand_core v0.5.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unknown attribute `norun`. Did you mean `no_run`?
[INFO] [stdout]   --> src/block.rs:9:1
[INFO] [stdout]    |
[INFO] [stdout] 9  | / //! The `BlockRngCore` trait and implementation helpers
[INFO] [stdout] 10 | | //!
[INFO] [stdout] 11 | | //! The [`BlockRngCore`] trait exists to assist in the implementation of RNGs
[INFO] [stdout] 12 | | //! which generate a block of data in a cache instead of returning generated
[INFO] [stdout] ...  |
[INFO] [stdout] 50 | | //! [`BlockRngCore`]: crate::block::BlockRngCore
[INFO] [stdout] 51 | | //! [`fill_bytes`]: RngCore::fill_bytes
[INFO] [stdout]    | |_______________________________________^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(invalid_codeblock_attribute)]` on by default
[INFO] [stdout]    = help: the code block will either not be tested if not marked as a rust one or will be run (which you might not want)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
[INFO] running `Command { std: "docker" "inspect" "eb3f822298c1400751a02b8260b8211432c20b8081d68323d47f24e2f17e399c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "eb3f822298c1400751a02b8260b8211432c20b8081d68323d47f24e2f17e399c", kill_on_drop: false }`
[INFO] [stdout] eb3f822298c1400751a02b8260b8211432c20b8081d68323d47f24e2f17e399c