[INFO] cloning repository https://github.com/nthorne/rssnek
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nthorne/rssnek" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnthorne%2Frssnek", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnthorne%2Frssnek'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f877f5d1f4cc38ec22df1690e51d0566d57837c3
[INFO] documenting nthorne/rssnek 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%2Fnthorne%2Frssnek" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/nthorne/rssnek 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/nthorne/rssnek
[INFO] finished tweaking git repo https://github.com/nthorne/rssnek
[INFO] tweaked toml for git repo https://github.com/nthorne/rssnek written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/nthorne/rssnek 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 slog-extra v0.1.2
[INFO] [stderr]   Downloaded serde v1.0.20
[INFO] [stderr]   Downloaded slog v1.7.1
[INFO] [stderr]   Downloaded slog-serde v1.0.0-alpha9
[INFO] [stderr]   Downloaded serde_derive v1.0.20
[INFO] [stderr]   Downloaded slog-stream v1.2.1
[INFO] [stderr]   Downloaded serde_json v1.0.6
[INFO] [stderr]   Downloaded ncurses v5.86.0
[INFO] [stderr]   Downloaded slog-json v1.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 2af09ec2488de3c1e46c602aec40d639be70403d6c93cfe0d4cb3301f7ee9cc1
[INFO] running `Command { std: "docker" "start" "-a" "2af09ec2488de3c1e46c602aec40d639be70403d6c93cfe0d4cb3301f7ee9cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "2af09ec2488de3c1e46c602aec40d639be70403d6c93cfe0d4cb3301f7ee9cc1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2af09ec2488de3c1e46c602aec40d639be70403d6c93cfe0d4cb3301f7ee9cc1", kill_on_drop: false }`
[INFO] [stdout] 2af09ec2488de3c1e46c602aec40d639be70403d6c93cfe0d4cb3301f7ee9cc1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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] 18f643c3e3f8a51f70bfd808824c41f8d4b84bd9425dc36bff17059602090ebe
[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" "18f643c3e3f8a51f70bfd808824c41f8d4b84bd9425dc36bff17059602090ebe", kill_on_drop: false }`
[INFO] [stderr]     Checking slog v1.7.1
[INFO] [stderr]     Checking dtoa v0.2.2
[INFO] [stderr]     Checking itoa v0.1.1
[INFO] [stderr]     Checking serde v1.0.20
[INFO] [stderr]    Compiling ncurses v5.86.0
[INFO] [stderr]     Checking num-iter v0.1.34
[INFO] [stderr]    Compiling serde_derive_internals v0.17.0
[INFO] [stderr]     Checking num v0.1.40
[INFO] [stderr]     Checking chrono v0.2.25
[INFO] [stderr]     Checking serde_json v0.8.6
[INFO] [stderr]     Checking slog-extra v0.1.2
[INFO] [stderr]     Checking slog-serde v1.0.0-alpha9
[INFO] [stderr]     Checking slog-stream v1.2.1
[INFO] [stderr]    Compiling serde_derive v1.0.20
[INFO] [stderr]     Checking slog-term v1.5.0
[INFO] [stderr]     Checking slog-json v1.2.1
[INFO] [stderr]     Checking serde_json v1.0.6
[INFO] [stderr]  Documenting rssnek v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/game/mod.rs:35:23
[INFO] [stdout]    |
[INFO] [stdout] 35 |             .and_then({|_| String::from_utf8(buf).map_err(ErrSum::ParseError)})
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around method argument
[INFO] [stdout]   --> src/game/mod.rs:34:23
[INFO] [stdout]    |
[INFO] [stdout] 34 |             .and_then({|mut s| s.read_to_end(&mut buf).map_err(ErrSum::FileError)})
[INFO] [stdout]    |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.69s
[INFO] running `Command { std: "docker" "inspect" "18f643c3e3f8a51f70bfd808824c41f8d4b84bd9425dc36bff17059602090ebe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18f643c3e3f8a51f70bfd808824c41f8d4b84bd9425dc36bff17059602090ebe", kill_on_drop: false }`
[INFO] [stdout] 18f643c3e3f8a51f70bfd808824c41f8d4b84bd9425dc36bff17059602090ebe