[INFO] cloning repository https://github.com/jvns/ruby-mem-watcher-demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jvns/ruby-mem-watcher-demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d6470107282b5734c12196787c8f915c35691299
[INFO] documenting jvns/ruby-mem-watcher-demo against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjvns%2Fruby-mem-watcher-demo" "/workspace/builds/worker-31/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-31/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jvns/ruby-mem-watcher-demo on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jvns/ruby-mem-watcher-demo
[INFO] finished tweaking git repo https://github.com/jvns/ruby-mem-watcher-demo
[INFO] tweaked toml for git repo https://github.com/jvns/ruby-mem-watcher-demo written to /workspace/builds/worker-31/source/Cargo.toml
[INFO] crate git repo https://github.com/jvns/ruby-mem-watcher-demo already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 2df85c9244af58b3e4aa851f925aec214fce4f64e603272e0fa332a9be4e581c
[INFO] running `Command { std: "docker" "start" "-a" "2df85c9244af58b3e4aa851f925aec214fce4f64e603272e0fa332a9be4e581c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2df85c9244af58b3e4aa851f925aec214fce4f64e603272e0fa332a9be4e581c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2df85c9244af58b3e4aa851f925aec214fce4f64e603272e0fa332a9be4e581c", kill_on_drop: false }`
[INFO] [stdout] 2df85c9244af58b3e4aa851f925aec214fce4f64e603272e0fa332a9be4e581c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ae9e305cf79231b41bcf8775a8ca514b485665f32728f5c6b3a7c71c8fe9dd7c
[INFO] running `Command { std: "docker" "start" "-a" "ae9e305cf79231b41bcf8775a8ca514b485665f32728f5c6b3a7c71c8fe9dd7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling bindgen v0.31.3
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling log v0.4.1
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling which v1.0.3
[INFO] [stderr]    Compiling clang-sys v0.21.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling clap v2.29.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]     Checking read-process-memory v0.1.2
[INFO] [stderr]    Compiling regex v0.2.5
[INFO] [stderr]    Compiling cexpr v0.2.2
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling bcc-sys v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking bcc v0.0.1
[INFO] [stderr]  Documenting ruby-fork-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking ruby-fork-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/proc_maps.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout]    |                     ^^                             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 24 -     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout] 24 +     maps.iter().any(|map| map.contains_addr(addr))
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/proc_maps.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout]    |                     ^^                             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 24 -     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout] 24 +     maps.iter().any(|map| map.contains_addr(addr))
[INFO] [stdout]    | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.45s
[INFO] running `Command { std: "docker" "inspect" "ae9e305cf79231b41bcf8775a8ca514b485665f32728f5c6b3a7c71c8fe9dd7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ae9e305cf79231b41bcf8775a8ca514b485665f32728f5c6b3a7c71c8fe9dd7c", kill_on_drop: false }`
[INFO] [stdout] ae9e305cf79231b41bcf8775a8ca514b485665f32728f5c6b3a7c71c8fe9dd7c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-31/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" "RUSTFLAGS=--cap-lints=warn" "-e" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 42244cac1e89f70018b0998c89a4a435de32006e6af8aea63aaa3eb4ba78fa45
[INFO] running `Command { std: "docker" "start" "-a" "42244cac1e89f70018b0998c89a4a435de32006e6af8aea63aaa3eb4ba78fa45", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.36
[INFO] [stderr]    Compiling lazy_static v1.0.0
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]    Compiling glob v0.2.11
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling libloading v0.4.3
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling unicode-width v0.1.4
[INFO] [stderr]    Compiling regex-syntax v0.4.2
[INFO] [stderr]    Compiling utf8-ranges v1.0.0
[INFO] [stderr]    Compiling ansi_term v0.10.2
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling strsim v0.6.0
[INFO] [stderr]    Compiling bindgen v0.31.3
[INFO] [stderr]    Compiling bitflags v1.0.1
[INFO] [stderr]    Compiling vec_map v0.8.0
[INFO] [stderr]    Compiling cc v1.0.4
[INFO] [stderr]    Compiling peeking_take_while v0.1.2
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]     Checking rustc-demangle v0.1.5
[INFO] [stderr]     Checking byteorder v0.5.3
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling unreachable v1.0.0
[INFO] [stderr]    Compiling textwrap v0.9.0
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking log v0.4.1
[INFO] [stderr]    Compiling thread_local v0.3.5
[INFO] [stderr]    Compiling memchr v2.0.1
[INFO] [stderr]    Compiling memchr v1.0.2
[INFO] [stderr]    Compiling atty v0.2.6
[INFO] [stderr]    Compiling which v1.0.3
[INFO] [stderr]     Checking elf v0.0.10
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling clap v2.29.2
[INFO] [stderr]    Compiling nom v3.2.1
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling aho-corasick v0.6.4
[INFO] [stderr]    Compiling clang-sys v0.21.1
[INFO] [stderr]     Checking read-process-memory v0.1.2
[INFO] [stderr]    Compiling synstructure v0.6.1
[INFO] [stderr]    Compiling regex v0.2.5
[INFO] [stderr]    Compiling cexpr v0.2.2
[INFO] [stderr]    Compiling failure_derive v0.1.1
[INFO] [stderr]    Compiling env_logger v0.4.3
[INFO] [stderr]    Compiling bcc-sys v0.4.0
[INFO] [stderr]     Checking backtrace v0.3.5
[INFO] [stderr]     Checking failure v0.1.1
[INFO] [stderr]     Checking bcc v0.0.1
[INFO] [stderr]  Documenting ruby-fork-test v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/proc_maps.rs:24:21
[INFO] [stdout]    |
[INFO] [stdout] 24 |     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout]    |                     ^^                             ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout] 24 -     maps.iter().any({ |map| map.contains_addr(addr) })
[INFO] [stdout] 24 +     maps.iter().any(|map| map.contains_addr(addr))
[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 31.76s
[INFO] running `Command { std: "docker" "inspect" "42244cac1e89f70018b0998c89a4a435de32006e6af8aea63aaa3eb4ba78fa45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "42244cac1e89f70018b0998c89a4a435de32006e6af8aea63aaa3eb4ba78fa45", kill_on_drop: false }`
[INFO] [stdout] 42244cac1e89f70018b0998c89a4a435de32006e6af8aea63aaa3eb4ba78fa45