[INFO] fetching crate nonogrid 0.7.1...
[INFO] documenting nonogrid-0.7.1 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate nonogrid 0.7.1 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate nonogrid 0.7.1 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 crates.io crate nonogrid 0.7.1
[INFO] finished tweaking crates.io crate nonogrid 0.7.1
[INFO] tweaked toml for crates.io crate nonogrid 0.7.1 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate nonogrid 0.7.1 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.14
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[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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1aac08991e2773ccd50c6b2ab7c44f20518036cfd736d07a08087c035477b621
[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" "1aac08991e2773ccd50c6b2ab7c44f20518036cfd736d07a08087c035477b621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1aac08991e2773ccd50c6b2ab7c44f20518036cfd736d07a08087c035477b621", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1aac08991e2773ccd50c6b2ab7c44f20518036cfd736d07a08087c035477b621", kill_on_drop: false }`
[INFO] [stdout] 1aac08991e2773ccd50c6b2ab7c44f20518036cfd736d07a08087c035477b621
[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" "+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] 6d3bb85e1d5587574579a26870dbd0b46e06983e14ca48ca92d772558214261f
[INFO] running `Command { std: "docker" "start" "-a" "6d3bb85e1d5587574579a26870dbd0b46e06983e14ca48ca92d772558214261f", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.72
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]    Compiling num-traits v0.2.12
[INFO] [stderr]    Compiling indexmap v1.4.0
[INFO] [stderr]    Compiling priority-queue v1.0.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]    Compiling const-random-macro v0.1.8
[INFO] [stderr]     Checking ordered-float v2.0.0
[INFO] [stderr]     Checking const-random v0.1.8
[INFO] [stderr]     Checking ahash v0.2.18
[INFO] [stderr]     Checking hashbrown v0.6.3
[INFO] [stderr]     Checking lru v0.5.3
[INFO] [stderr]    Compiling serde_derive v1.0.114
[INFO] [stderr]     Checking serde v1.0.114
[INFO] [stderr]     Checking toml v0.5.6
[INFO] [stderr]  Documenting nonogrid v0.7.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: documentation test in private item
[INFO] [stdout]    --> src/parser.rs:251:9
[INFO] [stdout]     |
[INFO] [stdout] 251 | /         ///```
[INFO] [stdout] 252 | |         /// # use nonogrid::parser::MyFormat;
[INFO] [stdout] 253 | |         ///
[INFO] [stdout] 254 | |         /// let s = "b = (blue) *";
[INFO] [stdout] 255 | |         /// let def = MyFormat::parse_color_def(s);
[INFO] [stdout] 256 | |         /// assert_eq!(def, ("b".to_string(), '*', "blue".to_string()));
[INFO] [stdout] 257 | |         /// ```
[INFO] [stdout]     | |_______________^
[INFO] [stdout]     |
[INFO] [stdout] note: the lint level is defined here
[INFO] [stdout]    --> src/lib.rs:18:9
[INFO] [stdout]     |
[INFO] [stdout] 18  | #![warn(private_doc_tests)]
[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 31.98s
[INFO] running `Command { std: "docker" "inspect" "6d3bb85e1d5587574579a26870dbd0b46e06983e14ca48ca92d772558214261f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d3bb85e1d5587574579a26870dbd0b46e06983e14ca48ca92d772558214261f", kill_on_drop: false }`
[INFO] [stdout] 6d3bb85e1d5587574579a26870dbd0b46e06983e14ca48ca92d772558214261f