[INFO] cloning repository https://github.com/raskad/kvs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/raskad/kvs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraskad%2Fkvs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraskad%2Fkvs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 64c699179e95c8680bbb40e5fbc08d89cfdb96b1
[INFO] documenting raskad/kvs against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fraskad%2Fkvs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/raskad/kvs on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/raskad/kvs
[INFO] finished tweaking git repo https://github.com/raskad/kvs
[INFO] tweaked toml for git repo https://github.com/raskad/kvs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/raskad/kvs already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "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-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" "+1.46.0" "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] d47e267ea695c6863d5a4c04096f640a07dfd4aa1a970cd4350a05d1a442ca7b
[INFO] running `Command { std: "docker" "start" "-a" "d47e267ea695c6863d5a4c04096f640a07dfd4aa1a970cd4350a05d1a442ca7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d47e267ea695c6863d5a4c04096f640a07dfd4aa1a970cd4350a05d1a442ca7b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d47e267ea695c6863d5a4c04096f640a07dfd4aa1a970cd4350a05d1a442ca7b", kill_on_drop: false }`
[INFO] [stdout] d47e267ea695c6863d5a4c04096f640a07dfd4aa1a970cd4350a05d1a442ca7b
[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" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1a668fa93a127c90e4cc68c58f65382360e64a3f050dcbbfa1791f6770c5cb76
[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" "1a668fa93a127c90e4cc68c58f65382360e64a3f050dcbbfa1791f6770c5cb76", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.6
[INFO] [stderr]    Compiling syn v1.0.7
[INFO] [stderr]    Compiling serde v1.0.102
[INFO] [stderr]    Compiling slog v2.5.2
[INFO] [stderr]    Compiling unicode-segmentation v1.5.0
[INFO] [stderr]    Compiling num-traits v0.2.8
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking dirs-sys v0.3.4
[INFO] [stderr]     Checking time v0.1.42
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking chrono v0.4.9
[INFO] [stderr]     Checking slog-term v2.4.2
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling serde_derive v1.0.102
[INFO] [stderr]    Compiling structopt-derive v0.3.4
[INFO] [stderr]     Checking structopt v0.3.4
[INFO] [stderr]     Checking serde_json v1.0.41
[INFO] [stderr]     Checking kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting kvs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: could not parse code block as Rust code
[INFO] [stdout]    --> src/store.rs:142:9
[INFO] [stdout]     |
[INFO] [stdout] 142 |       /// ```
[INFO] [stdout]     |  _________^
[INFO] [stdout] 143 | |     /// directory
[INFO] [stdout] 144 | |     /// ├── root.kvs   <- stores names of all database files
[INFO] [stdout] 145 | |     /// ├── data_0.kvs <- old database file
[INFO] [stdout] 146 | |     /// ├── data_1.kvs <- old database file
[INFO] [stdout] 147 | |     /// └── data_n.kvs <- current database head file
[INFO] [stdout] 148 | |     /// ```
[INFO] [stdout]     | |___________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{251c}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2514}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout]     = note: error from rustc: unknown start of token: \u{2500}
[INFO] [stdout] help: mark blocks that do not contain Rust code as text
[INFO] [stdout]     |
[INFO] [stdout] 142 |     /// ```text
[INFO] [stdout]     |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 54.61s
[INFO] running `Command { std: "docker" "inspect" "1a668fa93a127c90e4cc68c58f65382360e64a3f050dcbbfa1791f6770c5cb76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a668fa93a127c90e4cc68c58f65382360e64a3f050dcbbfa1791f6770c5cb76", kill_on_drop: false }`
[INFO] [stdout] 1a668fa93a127c90e4cc68c58f65382360e64a3f050dcbbfa1791f6770c5cb76