[INFO] fetching crate merkletree 0.21.0...
[INFO] documenting merkletree-0.21.0 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate merkletree 0.21.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate merkletree 0.21.0 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 merkletree 0.21.0
[INFO] finished tweaking crates.io crate merkletree 0.21.0
[INFO] tweaked toml for crates.io crate merkletree 0.21.0 written to /workspace/builds/worker-2/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]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c0ab63200cd037ee6d8cb01e2da244346058607b35f48d6abd9f7929cedb51c6
[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" "c0ab63200cd037ee6d8cb01e2da244346058607b35f48d6abd9f7929cedb51c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c0ab63200cd037ee6d8cb01e2da244346058607b35f48d6abd9f7929cedb51c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0ab63200cd037ee6d8cb01e2da244346058607b35f48d6abd9f7929cedb51c6", kill_on_drop: false }`
[INFO] [stdout] c0ab63200cd037ee6d8cb01e2da244346058607b35f48d6abd9f7929cedb51c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] bbd76f1b4cb5d841c1ff3ff983b6510af1961f384d5d3519cdb1a9b4a9f0c1a3
[INFO] running `Command { std: "docker" "start" "-a" "bbd76f1b4cb5d841c1ff3ff983b6510af1961f384d5d3519cdb1a9b4a9f0c1a3", kill_on_drop: false }`
[INFO] [stderr]     Checking positioned-io v0.2.2
[INFO] [stderr]  Documenting merkletree v0.21.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unresolved link to `Hashable`
[INFO] [stdout]  --> src/lib.rs:5:56
[INFO] [stdout]   |
[INFO] [stdout] 5 | //! to the extent of hashing algorithm and hash item. [`Hashable`] trait is
[INFO] [stdout]   |                                                        ^^^^^^^^^^ the module `merkletree` contains no item named `Hashable`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(broken_intra_doc_links)]` on by default
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `merkle::hash::Hashable`
[INFO] [stdout]   --> src/lib.rs:36:13
[INFO] [stdout]    |
[INFO] [stdout] 36 | //! Custom [`merkle::hash::Hashable`] trait allows implementations differ
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^ the module `merkle` contains no item named `hash`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `std::collection`
[INFO] [stdout]   --> src/lib.rs:37:11
[INFO] [stdout]    |
[INFO] [stdout] 37 | //! from [`std::collection`] related hashes, different implementations for
[INFO] [stdout]    |           ^^^^^^^^^^^^^^^^^ the module `std` contains no item named `collection`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Algorithm`
[INFO] [stdout]   --> src/lib.rs:40:6
[INFO] [stdout]    |
[INFO] [stdout] 40 | //! [`Algorithm`] complements [`Hasher`] to be reusable and follows the idea
[INFO] [stdout]    |      ^^^^^^^^^^^ the module `merkletree` contains no item named `Algorithm`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Hasher`
[INFO] [stdout]   --> src/lib.rs:40:32
[INFO] [stdout]    |
[INFO] [stdout] 40 | //! [`Algorithm`] complements [`Hasher`] to be reusable and follows the idea
[INFO] [stdout]    |                                ^^^^^^^^ the module `merkletree` contains no item named `Hasher`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Algorithm`
[INFO] [stdout]   --> src/lib.rs:50:33
[INFO] [stdout]    |
[INFO] [stdout] 50 | //! `write(T)` allows to relax [`Algorithm`] trait [`Hasher`] constraint, even tho
[INFO] [stdout]    |                                 ^^^^^^^^^^^ the module `merkletree` contains no item named `Algorithm`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Hasher`
[INFO] [stdout]   --> src/lib.rs:50:53
[INFO] [stdout]    |
[INFO] [stdout] 50 | //! `write(T)` allows to relax [`Algorithm`] trait [`Hasher`] constraint, even tho
[INFO] [stdout]    |                                                     ^^^^^^^^ the module `merkletree` contains no item named `Hasher`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `hash`
[INFO] [stdout]  --> src/hash.rs:7:51
[INFO] [stdout]   |
[INFO] [stdout] 7 | /// Types implementing `Hashable` are able to be [`hash`]ed with an instance of
[INFO] [stdout]   |                                                   ^^^^^^ the module `hash` contains no item named `hash`
[INFO] [stdout]   |
[INFO] [stdout]   = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `hash`
[INFO] [stdout]   --> src/hash.rs:14:6
[INFO] [stdout]    |
[INFO] [stdout] 14 | /// [`hash`] on each field.
[INFO] [stdout]    |      ^^^^^^ the module `hash` contains no item named `hash`
[INFO] [stdout]    |
[INFO] [stdout]    = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unresolved link to `Hashable`
[INFO] [stdout]    --> src/lib.rs:168:33
[INFO] [stdout]     |
[INFO] [stdout] 168 | /// Common implementations for [`Hashable`].
[INFO] [stdout]     |                                 ^^^^^^^^^^ the module `merkletree` contains no item named `Hashable`
[INFO] [stdout]     |
[INFO] [stdout]     = help: to escape `[` and `]` characters, add '\' before them like `\[` or `\]`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.27s
[INFO] running `Command { std: "docker" "inspect" "bbd76f1b4cb5d841c1ff3ff983b6510af1961f384d5d3519cdb1a9b4a9f0c1a3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bbd76f1b4cb5d841c1ff3ff983b6510af1961f384d5d3519cdb1a9b4a9f0c1a3", kill_on_drop: false }`
[INFO] [stdout] bbd76f1b4cb5d841c1ff3ff983b6510af1961f384d5d3519cdb1a9b4a9f0c1a3
