[INFO] cloning repository https://github.com/rvolz/rustrt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rvolz/rustrt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frvolz%2Frustrt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frvolz%2Frustrt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea996a856c178568bac820f8ddd2eacf03bb8d88
[INFO] documenting rvolz/rustrt 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%2Frvolz%2Frustrt" "/workspace/builds/worker-8/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-8/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rvolz/rustrt 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/rvolz/rustrt
[INFO] removed 0 missing tests
[INFO] finished tweaking git repo https://github.com/rvolz/rustrt
[INFO] tweaked toml for git repo https://github.com/rvolz/rustrt written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] crate git repo https://github.com/rvolz/rustrt 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 darling_macro v0.8.2
[INFO] [stderr]   Downloaded round v0.1.0
[INFO] [stderr]   Downloaded darling v0.8.2
[INFO] [stderr]   Downloaded cucumber_rust v0.5.1
[INFO] [stderr]   Downloaded gherkin_rust v0.4.1
[INFO] [stderr]   Downloaded darling_core v0.8.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] bd3c0c887451b535a88f94428ead7b7d2a35f42a2257f54638a5d88aa109f127
[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" "bd3c0c887451b535a88f94428ead7b7d2a35f42a2257f54638a5d88aa109f127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bd3c0c887451b535a88f94428ead7b7d2a35f42a2257f54638a5d88aa109f127", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bd3c0c887451b535a88f94428ead7b7d2a35f42a2257f54638a5d88aa109f127", kill_on_drop: false }`
[INFO] [stdout] bd3c0c887451b535a88f94428ead7b7d2a35f42a2257f54638a5d88aa109f127
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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] cdf63293e659c069baaf7a847c72bd5719bca51b6cc5125d2948bd8ae9d53a11
[INFO] running `Command { std: "docker" "start" "-a" "cdf63293e659c069baaf7a847c72bd5719bca51b6cc5125d2948bd8ae9d53a11", 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]    Compiling proc-macro2 v0.4.26
[INFO] [stderr]    Compiling ident_case v1.0.0
[INFO] [stderr]    Compiling derive_builder v0.7.0
[INFO] [stderr]     Checking ordered-float v1.0.1
[INFO] [stderr]     Checking float-cmp v0.4.0
[INFO] [stderr]    Compiling quote v0.6.11
[INFO] [stderr]    Compiling syn v0.15.26
[INFO] [stderr]    Compiling darling_core v0.8.2
[INFO] [stderr]    Compiling darling_macro v0.8.2
[INFO] [stderr]    Compiling darling v0.8.2
[INFO] [stderr]    Compiling derive_builder_core v0.4.0
[INFO] [stderr]  Documenting rustrt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/tuple.rs:31:3
[INFO] [stdout]    |
[INFO] [stdout] 31 |   (t.w == 1.0)
[INFO] [stdout]    |   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/tuple.rs:36:3
[INFO] [stdout]    |
[INFO] [stdout] 36 |   (t.w == 0.0)
[INFO] [stdout]    |   ^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/tuple.rs:70:5
[INFO] [stdout]    |
[INFO] [stdout] 70 |     (&self.w == &1.0)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/tuple.rs:74:5
[INFO] [stdout]    |
[INFO] [stdout] 74 |     (&self.w == &0.0)
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.11s
[INFO] running `Command { std: "docker" "inspect" "cdf63293e659c069baaf7a847c72bd5719bca51b6cc5125d2948bd8ae9d53a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cdf63293e659c069baaf7a847c72bd5719bca51b6cc5125d2948bd8ae9d53a11", kill_on_drop: false }`
[INFO] [stdout] cdf63293e659c069baaf7a847c72bd5719bca51b6cc5125d2948bd8ae9d53a11