[INFO] cloning repository https://github.com/Hermitter/rust-book-2018-notes
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Hermitter/rust-book-2018-notes" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermitter%2Frust-book-2018-notes", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermitter%2Frust-book-2018-notes'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fcfe4313c342ffaac8443ccb84403c37e23cc419
[INFO] documenting Hermitter/rust-book-2018-notes against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FHermitter%2Frust-book-2018-notes" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Hermitter/rust-book-2018-notes on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Hermitter/rust-book-2018-notes
[INFO] finished tweaking git repo https://github.com/Hermitter/rust-book-2018-notes
[INFO] tweaked toml for git repo https://github.com/Hermitter/rust-book-2018-notes written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/Hermitter/rust-book-2018-notes already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9f9652c7ca5585152cd6eb05423b4d5e801c11b1f3b83901d05e77c2bb73228d
[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" "9f9652c7ca5585152cd6eb05423b4d5e801c11b1f3b83901d05e77c2bb73228d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9f9652c7ca5585152cd6eb05423b4d5e801c11b1f3b83901d05e77c2bb73228d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f9652c7ca5585152cd6eb05423b4d5e801c11b1f3b83901d05e77c2bb73228d", kill_on_drop: false }`
[INFO] [stdout] 9f9652c7ca5585152cd6eb05423b4d5e801c11b1f3b83901d05e77c2bb73228d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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" "+1.46.0" "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] 9341bbabe9badfed5a405d7f176461708cc47c35c3df79348ed9c750b42624d7
[INFO] running `Command { std: "docker" "start" "-a" "9341bbabe9badfed5a405d7f176461708cc47c35c3df79348ed9c750b42624d7", kill_on_drop: false }`
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]  Documenting book v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant `ice_cream` should have an upper camel case name
[INFO] [stdout]   --> src/bin/ch7_modules/main.rs:85:9
[INFO] [stdout]    |
[INFO] [stdout] 85 |         ice_cream,
[INFO] [stdout]    |         ^^^^^^^^^ help: convert the identifier to upper camel case: `IceCream`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `cake` should have an upper camel case name
[INFO] [stdout]   --> src/bin/ch7_modules/main.rs:86:9
[INFO] [stdout]    |
[INFO] [stdout] 86 |         cake,
[INFO] [stdout]    |         ^^^^ help: convert the identifier to upper camel case (notice the capitalization): `Cake`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `simpleRef` should have a snake case name
[INFO] [stdout]   --> src/bin/ch10_types_traits_lifetimes.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |         fn simpleRef(&self) -> &T {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `simple_ref`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `wholeNums` should have a snake case name
[INFO] [stdout]   --> src/bin/ch10_types_traits_lifetimes.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |         fn wholeNums(&self) {
[INFO] [stdout]    |            ^^^^^^^^^ help: convert the identifier to snake case: `whole_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `simpleReturn` should have a snake case name
[INFO] [stdout]    --> src/bin/ch10_types_traits_lifetimes.rs:149:8
[INFO] [stdout]     |
[INFO] [stdout] 149 |     fn simpleReturn<'a>(x: &'a str, y: &str) -> &'a str {
[INFO] [stdout]     |        ^^^^^^^^^^^^ help: convert the identifier to snake case: `simple_return`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `takeLiteral` should have a snake case name
[INFO] [stdout]   --> src/bin/ch4_ownership.rs:91:8
[INFO] [stdout]    |
[INFO] [stdout] 91 |     fn takeLiteral(text: &str) {}
[INFO] [stdout]    |        ^^^^^^^^^^^ help: convert the identifier to snake case: `take_literal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: Could not document `book`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type bin --crate-name ch4_ownership src/bin/ch4_ownership.rs -o /opt/rustwide/target/doc --error-format=json --json=diagnostic-rendered-ansi --document-private-items -L dependency=/opt/rustwide/target/debug/deps --extern rand=/opt/rustwide/target/debug/deps/librand-fcf59883faf4621d.rmeta --cap-lints=warn` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "9341bbabe9badfed5a405d7f176461708cc47c35c3df79348ed9c750b42624d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9341bbabe9badfed5a405d7f176461708cc47c35c3df79348ed9c750b42624d7", kill_on_drop: false }`
[INFO] [stdout] 9341bbabe9badfed5a405d7f176461708cc47c35c3df79348ed9c750b42624d7