[INFO] fetching crate core_extensions 0.1.17...
[INFO] documenting core_extensions-0.1.17 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate core_extensions 0.1.17 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate core_extensions 0.1.17 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "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-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rand_derive v0.3.1
[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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 79090fbe73a69e2957387dc6b145a678742c77525bfb48c516b82de50829269b
[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" "79090fbe73a69e2957387dc6b145a678742c77525bfb48c516b82de50829269b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "79090fbe73a69e2957387dc6b145a678742c77525bfb48c516b82de50829269b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79090fbe73a69e2957387dc6b145a678742c77525bfb48c516b82de50829269b", kill_on_drop: false }`
[INFO] [stdout] 79090fbe73a69e2957387dc6b145a678742c77525bfb48c516b82de50829269b
[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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", 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] 4004a8e9b17ed233e1f0a579bd94813e407cb909a1c6d32bb3fbf06f6b35c71d
[INFO] running `Command { std: "docker" "start" "-a" "4004a8e9b17ed233e1f0a579bd94813e407cb909a1c6d32bb3fbf06f6b35c71d", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.117
[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: unresolved link to `::std::time::Duration`
[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]    |                ^^^^^^^^^^^^^^^^^^^^^ the module `core_extensions` contains no item named ``
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::iter::Once`
[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]     |                      ^^^^^^^^^^^^^^^^^ the module `core_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::time::Duration`
[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]     |                    ^^^^^^^^^^^^^^^^^^^^^ the module `integer_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::time::Duration`
[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]     |                    ^^^^^^^^^^^^^^^^^^^^^ the module `integer_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::time::Duration`
[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]     |                    ^^^^^^^^^^^^^^^^^^^^^ the module `integer_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::time::Duration`
[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]     |                    ^^^^^^^^^^^^^^^^^^^^^ the module `integer_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::time::Duration`
[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]     |                    ^^^^^^^^^^^^^^^^^^^^^ the module `integer_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::time::Duration`
[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]     |                    ^^^^^^^^^^^^^^^^^^^^^ the module `integer_extensions` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::iter::RepeatWith`
[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]    |                    ^^^^^^^^^^^^^^^^^^^^^^^ the module `iterators` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::iter::Once`
[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]    |                               ^^^^^^^^^^^^^^^^^ the module `iterators` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::mem::transmute_copy`
[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]   |                                                    ^^^^^^^^^^^^^^^^^^^^^^^^^^ the module `utils` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `::std::hint::unreachable_unchecked`
[INFO] [stdout]   --> src_core_extensions/utils.rs:35:29
[INFO] [stdout]    |
[INFO] [stdout] 35 | /// [unreachable_unchecked](::std::hint::unreachable_unchecked)
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the module `utils` contains no item named ``
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 12 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.66s
[INFO] running `Command { std: "docker" "inspect" "4004a8e9b17ed233e1f0a579bd94813e407cb909a1c6d32bb3fbf06f6b35c71d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4004a8e9b17ed233e1f0a579bd94813e407cb909a1c6d32bb3fbf06f6b35c71d", kill_on_drop: false }`
[INFO] [stdout] 4004a8e9b17ed233e1f0a579bd94813e407cb909a1c6d32bb3fbf06f6b35c71d
