[INFO] fetching crate core_extensions 0.1.17...
[INFO] documenting core_extensions-0.1.17 against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] extracting crate core_extensions 0.1.17 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate core_extensions 0.1.17 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 core_extensions 0.1.17
[INFO] finished tweaking crates.io crate core_extensions 0.1.17
[INFO] tweaked toml for crates.io crate core_extensions 0.1.17 written to /workspace/builds/worker-3/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-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] [stdout] dc45de6665df96ccfe708212c8de75ef68928d3b795d7a73f90626e74479dd4f
[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" "dc45de6665df96ccfe708212c8de75ef68928d3b795d7a73f90626e74479dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc45de6665df96ccfe708212c8de75ef68928d3b795d7a73f90626e74479dd4f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc45de6665df96ccfe708212c8de75ef68928d3b795d7a73f90626e74479dd4f", kill_on_drop: false }`
[INFO] [stdout] dc45de6665df96ccfe708212c8de75ef68928d3b795d7a73f90626e74479dd4f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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] da39ec3e7395ed067a39e156c855a1db88643dfebc3a02fa66952ecec9dafa53
[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" "da39ec3e7395ed067a39e156c855a1db88643dfebc3a02fa66952ecec9dafa53", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.114
[INFO] [stderr]    Compiling core_extensions v0.1.17 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting core_extensions v0.1.17 (/opt/rustwide/workdir)
[INFO] [stdout] warning: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src_core_extensions/lib.rs:73:16
[INFO] [stdout]    |
[INFO] [stdout] 73 | //! [Duration](::std::time::Duration)s of a certain unit.
[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: `[::std::iter::Once]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/lib.rs:115:22
[INFO] [stdout]     |
[INFO] [stdout] 115 | //! Lazy version of [::std::iter::Once],only evaluating the item when
[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: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/integer_extensions.rs:197:20
[INFO] [stdout]     |
[INFO] [stdout] 197 |     /// Creates a [::std::time::Duration] of `self` hours.
[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: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/integer_extensions.rs:209:20
[INFO] [stdout]     |
[INFO] [stdout] 209 |     /// Creates a [::std::time::Duration] of `self` minutes.
[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: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/integer_extensions.rs:221:20
[INFO] [stdout]     |
[INFO] [stdout] 221 |     /// Creates a [::std::time::Duration] of `self` seconds
[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: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/integer_extensions.rs:233:20
[INFO] [stdout]     |
[INFO] [stdout] 233 |     /// Creates a [::std::time::Duration] of `self` miliseconds
[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: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/integer_extensions.rs:246:20
[INFO] [stdout]     |
[INFO] [stdout] 246 |     /// Creates a [::std::time::Duration] of `self` microseconds
[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: `[::std::time::Duration]` cannot be resolved, ignoring it.
[INFO] [stdout]    --> src_core_extensions/integer_extensions.rs:258:20
[INFO] [stdout]     |
[INFO] [stdout] 258 |     /// Creates a [::std::time::Duration] of `self` nanoseconds
[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: `[::std::iter::RepeatWith]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src_core_extensions/iterators.rs:13:20
[INFO] [stdout]    |
[INFO] [stdout] 13 | /// Equivalent to [::std::iter::RepeatWith],which is stabilized in Rust 1.28.
[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: `[::std::iter::Once]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src_core_extensions/iterators.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 | /// Iterator,lazy version of [::std::iter::Once],only evaluating the item when
[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: `[::std::mem::transmute_copy]` cannot be resolved, ignoring it.
[INFO] [stdout]  --> src_core_extensions/utils.rs:9:52
[INFO] [stdout]   |
[INFO] [stdout] 9 | /// This function has the same safety concerns as [::std::mem::transmute_copy].
[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: `[::std::hint::unreachable_unchecked]` cannot be resolved, ignoring it.
[INFO] [stdout]   --> src_core_extensions/utils.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 | /// [unreachable_unchecked](::std::hint::unreachable_unchecked)
[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: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.94s
[INFO] running `Command { std: "docker" "inspect" "da39ec3e7395ed067a39e156c855a1db88643dfebc3a02fa66952ecec9dafa53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "da39ec3e7395ed067a39e156c855a1db88643dfebc3a02fa66952ecec9dafa53", kill_on_drop: false }`
[INFO] [stdout] da39ec3e7395ed067a39e156c855a1db88643dfebc3a02fa66952ecec9dafa53