[INFO] cloning repository https://github.com/jmjoy/recorder
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jmjoy/recorder" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmjoy%2Frecorder", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjmjoy%2Frecorder'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 12230fa58bc7ec097c0bc7b671283805b9fc0f60
[INFO] documenting jmjoy/recorder 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%2Fjmjoy%2Frecorder" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jmjoy/recorder 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/jmjoy/recorder
[INFO] finished tweaking git repo https://github.com/jmjoy/recorder
[INFO] tweaked toml for git repo https://github.com/jmjoy/recorder written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/jmjoy/recorder 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 structopt v0.3.2
[INFO] [stderr]   Downloaded structopt-derive v0.3.2
[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" "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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 6e4761fc43493dccb9606d94c978500680c3e96b7699b51fad7d40ca4e7c8909
[INFO] running `Command { std: "docker" "start" "-a" "6e4761fc43493dccb9606d94c978500680c3e96b7699b51fad7d40ca4e7c8909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6e4761fc43493dccb9606d94c978500680c3e96b7699b51fad7d40ca4e7c8909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e4761fc43493dccb9606d94c978500680c3e96b7699b51fad7d40ca4e7c8909", kill_on_drop: false }`
[INFO] [stdout] 6e4761fc43493dccb9606d94c978500680c3e96b7699b51fad7d40ca4e7c8909
[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" "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] [stdout] 79745f6424c1a25ed14345ee57d43fedc6f008f8c536e64d0f332f143b62e48e
[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" "79745f6424c1a25ed14345ee57d43fedc6f008f8c536e64d0f332f143b62e48e", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.4
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling libc v0.2.62
[INFO] [stderr]    Compiling bitflags v1.2.0
[INFO] [stderr]    Compiling unicode-segmentation v1.3.0
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling num-bigint v0.2.3
[INFO] [stderr]    Compiling num-rational v0.2.2
[INFO] [stderr]    Compiling num-iter v0.1.39
[INFO] [stderr]    Compiling num-complex v0.2.3
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking num v0.2.0
[INFO] [stderr]    Compiling proc-macro-error v0.2.6
[INFO] [stderr]    Compiling structopt-derive v0.3.2
[INFO] [stderr]    Compiling num-derive v0.3.0
[INFO] [stderr]     Checking structopt v0.3.2
[INFO] [stderr]     Checking recorder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting recorder v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::tone::Tone`
[INFO] [stdout]   --> src/notation.rs:59:9
[INFO] [stdout]    |
[INFO] [stdout] 59 |     use crate::tone::Tone;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/tone.rs:441:33
[INFO] [stdout]     |
[INFO] [stdout] 441 |                 Token::Notation(n) => {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `t`
[INFO] [stdout]    --> src/tone.rs:446:17
[INFO] [stdout]     |
[INFO] [stdout] 446 |                 t => s.to_owned(),
[INFO] [stdout]     |                 ^ help: if this is intentional, prefix it with an underscore: `_t`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `n`
[INFO] [stdout]    --> src/tone.rs:474:33
[INFO] [stdout]     |
[INFO] [stdout] 474 |                 Token::Notation(n) => {
[INFO] [stdout]     |                                 ^ help: if this is intentional, prefix it with an underscore: `_n`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.77s
[INFO] running `Command { std: "docker" "inspect" "79745f6424c1a25ed14345ee57d43fedc6f008f8c536e64d0f332f143b62e48e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79745f6424c1a25ed14345ee57d43fedc6f008f8c536e64d0f332f143b62e48e", kill_on_drop: false }`
[INFO] [stdout] 79745f6424c1a25ed14345ee57d43fedc6f008f8c536e64d0f332f143b62e48e