[INFO] cloning repository https://github.com/nick-hill/day4_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/nick-hill/day4_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnick-hill%2Fday4_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnick-hill%2Fday4_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 750ce06e1c3b4af5e244743cb97959b319e4c159
[INFO] documenting nick-hill/day4_rust against master#394e1b40d264aa6928811919c1124fa248e7d802 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnick-hill%2Fday4_rust" "/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/nick-hill/day4_rust on toolchain 394e1b40d264aa6928811919c1124fa248e7d802
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/nick-hill/day4_rust
[INFO] finished tweaking git repo https://github.com/nick-hill/day4_rust
[INFO] tweaked toml for git repo https://github.com/nick-hill/day4_rust written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/nick-hill/day4_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 5f7d5efb4ae44a14b20cfc5c1708b317605f9e6050b41dd6a9dea6fd9cbcb475
[INFO] running `Command { std: "docker" "start" "-a" "5f7d5efb4ae44a14b20cfc5c1708b317605f9e6050b41dd6a9dea6fd9cbcb475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f7d5efb4ae44a14b20cfc5c1708b317605f9e6050b41dd6a9dea6fd9cbcb475", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f7d5efb4ae44a14b20cfc5c1708b317605f9e6050b41dd6a9dea6fd9cbcb475", kill_on_drop: false }`
[INFO] [stdout] 5f7d5efb4ae44a14b20cfc5c1708b317605f9e6050b41dd6a9dea6fd9cbcb475
[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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:819119df93c0f5eca3f29186f14981ef29945a311854d7222af07488600a2584" "/opt/rustwide/cargo-home/bin/cargo" "+394e1b40d264aa6928811919c1124fa248e7d802" "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] 27c447c83b1f49c330c7a28bdd283d49ea36e0fb39608206f9d1d4612e18fcff
[INFO] running `Command { std: "docker" "start" "-a" "27c447c83b1f49c330c7a28bdd283d49ea36e0fb39608206f9d1d4612e18fcff", kill_on_drop: false }`
[INFO] [stderr]     Checking text_io v0.1.7
[INFO] [stderr]  Documenting day4_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `Option_i32` should have an upper camel case name
[INFO] [stdout]   --> src/generics.rs:11:6
[INFO] [stdout]    |
[INFO] [stdout] 11 | enum Option_i32 {
[INFO] [stdout]    |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `OptionI32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: type `Option_f64` should have an upper camel case name
[INFO] [stdout]   --> src/generics.rs:16:6
[INFO] [stdout]    |
[INFO] [stdout] 16 | enum Option_f64 {
[INFO] [stdout]    |      ^^^^^^^^^^ help: convert the identifier to upper camel case: `OptionF64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.50s
[INFO] running `Command { std: "docker" "inspect" "27c447c83b1f49c330c7a28bdd283d49ea36e0fb39608206f9d1d4612e18fcff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "27c447c83b1f49c330c7a28bdd283d49ea36e0fb39608206f9d1d4612e18fcff", kill_on_drop: false }`
[INFO] [stdout] 27c447c83b1f49c330c7a28bdd283d49ea36e0fb39608206f9d1d4612e18fcff