[INFO] cloning repository https://github.com/Jaegermeiste/rust-adventure
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jaegermeiste/rust-adventure" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaegermeiste%2Frust-adventure", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaegermeiste%2Frust-adventure'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 85b4f2958b39b9a9bede49e5f8ef8a139da16a23
[INFO] documenting Jaegermeiste/rust-adventure against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaegermeiste%2Frust-adventure" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Jaegermeiste/rust-adventure on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Jaegermeiste/rust-adventure
[INFO] finished tweaking git repo https://github.com/Jaegermeiste/rust-adventure
[INFO] tweaked toml for git repo https://github.com/Jaegermeiste/rust-adventure written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/Jaegermeiste/rust-adventure already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded static_assertions v1.1.0
[INFO] [stderr]   Downloaded crossterm_winapi v0.6.1
[INFO] [stderr]   Downloaded crossterm v0.16.0
[INFO] [stderr]   Downloaded anymap v0.12.1
[INFO] [stderr]   Downloaded parking_lot_core v0.7.0
[INFO] [stderr]   Downloaded lock_api v0.3.3
[INFO] [stderr]   Downloaded lexical-core v0.7.4
[INFO] [stderr]   Downloaded num-derive v0.3.0
[INFO] [stderr]   Downloaded rand_distr v0.2.2
[INFO] [stderr]   Downloaded inventory v0.1.5
[INFO] [stderr]   Downloaded lexical v5.2.0
[INFO] [stderr]   Downloaded term_size v0.3.1
[INFO] [stderr]   Downloaded parking_lot v0.10.0
[INFO] [stderr]   Downloaded arrayvec v0.5.1
[INFO] [stderr]   Downloaded libc v0.2.67
[INFO] [stderr]   Downloaded signal-hook-registry v1.2.0
[INFO] [stderr]   Downloaded traitcast_core v0.2.0
[INFO] [stderr]   Downloaded ghost v0.1.1
[INFO] [stderr]   Downloaded ctor v0.1.12
[INFO] [stderr]   Downloaded inventory-impl v0.1.5
[INFO] [stderr]   Downloaded unicode-width v0.1.6
[INFO] [stderr]   Downloaded num-traits v0.2.11
[INFO] [stderr]   Downloaded arc-swap v0.4.4
[INFO] [stderr]   Downloaded signal-hook v0.1.13
[INFO] [stderr]   Downloaded traitcast v0.5.0
[INFO] [stderr]   Downloaded autocfg v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 491827101e32576227a3ab4ff974d372591d6e1b807eae9c6d7c0b79cae80112
[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" "491827101e32576227a3ab4ff974d372591d6e1b807eae9c6d7c0b79cae80112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "491827101e32576227a3ab4ff974d372591d6e1b807eae9c6d7c0b79cae80112", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "491827101e32576227a3ab4ff974d372591d6e1b807eae9c6d7c0b79cae80112", kill_on_drop: false }`
[INFO] [stdout] 491827101e32576227a3ab4ff974d372591d6e1b807eae9c6d7c0b79cae80112
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-08-29" "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] 713a90eaa3b25c2e73dbb433f4287dcc52094e5c54dcef05d5d3e4a0e6eb9dcc
[INFO] running `Command { std: "docker" "start" "-a" "713a90eaa3b25c2e73dbb433f4287dcc52094e5c54dcef05d5d3e4a0e6eb9dcc", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.67
[INFO] [stderr]    Compiling syn v1.0.11
[INFO] [stderr]    Compiling ryu v1.0.2
[INFO] [stderr]    Compiling lexical-core v0.7.4
[INFO] [stderr]     Checking arc-swap v0.4.4
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking arrayvec v0.5.1
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking getrandom v0.1.13
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking parking_lot_core v0.7.0
[INFO] [stderr]     Checking signal-hook-registry v1.2.0
[INFO] [stderr]     Checking term_size v0.3.1
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.10.0
[INFO] [stderr]     Checking rand_chacha v0.2.1
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking signal-hook v0.1.13
[INFO] [stderr]     Checking crossterm v0.16.0
[INFO] [stderr]     Checking lexical v5.2.0
[INFO] [stderr]     Checking rand_distr v0.2.2
[INFO] [stderr]    Compiling ctor v0.1.12
[INFO] [stderr]    Compiling inventory-impl v0.1.5
[INFO] [stderr]    Compiling ghost v0.1.1
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]     Checking inventory v0.1.5
[INFO] [stderr]     Checking traitcast_core v0.2.0
[INFO] [stderr]     Checking traitcast v0.5.0
[INFO] [stderr]  Documenting rust-adventure v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/menu/menupage.rs:42:41
[INFO] [stdout]    |
[INFO] [stdout] 42 |     pub fn get_num_items(&self) -> u32 {(self.menu_items.len() as u32)}
[INFO] [stdout]    |                                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 43.35s
[INFO] running `Command { std: "docker" "inspect" "713a90eaa3b25c2e73dbb433f4287dcc52094e5c54dcef05d5d3e4a0e6eb9dcc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "713a90eaa3b25c2e73dbb433f4287dcc52094e5c54dcef05d5d3e4a0e6eb9dcc", kill_on_drop: false }`
[INFO] [stdout] 713a90eaa3b25c2e73dbb433f4287dcc52094e5c54dcef05d5d3e4a0e6eb9dcc