[INFO] fetching crate possibly_uninit 0.1.0-preview...
[INFO] documenting possibly_uninit-0.1.0-preview against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate possibly_uninit 0.1.0-preview into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate possibly_uninit 0.1.0-preview 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 possibly_uninit 0.1.0-preview
[INFO] finished tweaking crates.io crate possibly_uninit 0.1.0-preview
[INFO] tweaked toml for crates.io crate possibly_uninit 0.1.0-preview written to /workspace/builds/worker-4/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-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" "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] 0cffd73fcd1d7279dcc0b01bd319030a33e7f2c5afa417a3c09a5e54cbecce9e
[INFO] running `Command { std: "docker" "start" "-a" "0cffd73fcd1d7279dcc0b01bd319030a33e7f2c5afa417a3c09a5e54cbecce9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0cffd73fcd1d7279dcc0b01bd319030a33e7f2c5afa417a3c09a5e54cbecce9e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0cffd73fcd1d7279dcc0b01bd319030a33e7f2c5afa417a3c09a5e54cbecce9e", kill_on_drop: false }`
[INFO] [stdout] 0cffd73fcd1d7279dcc0b01bd319030a33e7f2c5afa417a3c09a5e54cbecce9e
[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" "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] 9d66365dfe8ab14924f53ed5bf9594dbcc718ca4570d1b11ba7ff61da00c5e59
[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" "9d66365dfe8ab14924f53ed5bf9594dbcc718ca4570d1b11ba7ff61da00c5e59", kill_on_drop: false }`
[INFO] [stderr]  Documenting possibly_uninit v0.1.0-preview (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[Item]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/slice/cursor.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// it should be first part for [Item] slices, second part for [MaybeUninit<Item>].
[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: `[Item]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/slice/cursor.rs:13:73
[INFO] [stdout]    |
[INFO] [stdout] 13 | /// But that would be extremely confusing, especially considering that [Item] can
[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: `[Item]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src/slice/cursor.rs:12:34
[INFO] [stdout]    |
[INFO] [stdout] 12 | /// it should be first part for [Item] slices, second part for [MaybeUninit<Item>].
[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: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.41s
[INFO] running `Command { std: "docker" "inspect" "9d66365dfe8ab14924f53ed5bf9594dbcc718ca4570d1b11ba7ff61da00c5e59", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9d66365dfe8ab14924f53ed5bf9594dbcc718ca4570d1b11ba7ff61da00c5e59", kill_on_drop: false }`
[INFO] [stdout] 9d66365dfe8ab14924f53ed5bf9594dbcc718ca4570d1b11ba7ff61da00c5e59