[INFO] updating cached repository https://github.com/Qubeo/hello-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c9be0e677f4ccde4ba9f006f82a8fafd6a373214
[INFO] documenting Qubeo/hello-rust against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FQubeo%2Fhello-rust" "/workspace/builds/worker-9/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Qubeo/hello-rust on toolchain 66dfc4e010913fbed0c4ea91fc2c010004b0f441
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Qubeo/hello-rust
[INFO] finished tweaking git repo https://github.com/Qubeo/hello-rust
[INFO] tweaked toml for git repo https://github.com/Qubeo/hello-rust written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] crate git repo https://github.com/Qubeo/hello-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0b19ed331b2d945ca23cbd79b9bf4f9a9b65f520b8493ec4dac8ba99173bb5b0
[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" "0b19ed331b2d945ca23cbd79b9bf4f9a9b65f520b8493ec4dac8ba99173bb5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0b19ed331b2d945ca23cbd79b9bf4f9a9b65f520b8493ec4dac8ba99173bb5b0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b19ed331b2d945ca23cbd79b9bf4f9a9b65f520b8493ec4dac8ba99173bb5b0", kill_on_drop: false }`
[INFO] [stdout] 0b19ed331b2d945ca23cbd79b9bf4f9a9b65f520b8493ec4dac8ba99173bb5b0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+66dfc4e010913fbed0c4ea91fc2c010004b0f441" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c0fcc2d3f6f168178e8c0ad0e450cdb21ff03872beedaffd022f901fba7f1a7c
[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" "c0fcc2d3f6f168178e8c0ad0e450cdb21ff03872beedaffd022f901fba7f1a7c", kill_on_drop: false }`
[INFO] [stderr]    Compiling ryu v0.2.7
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling serde v1.0.84
[INFO] [stderr]    Compiling thread-id v3.3.0
[INFO] [stderr]     Checking serde_json v1.0.34
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]    Compiling syn v0.15.24
[INFO] [stderr]    Compiling serde_derive v1.0.84
[INFO] [stderr]    Compiling flame v0.2.2
[INFO] [stderr]    Compiling flamer v0.3.0
[INFO] [stderr]  Documenting hello-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: type `u32ff` should have an upper camel case name
[INFO] [stdout]   --> src/grid/mod.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub struct u32ff {
[INFO] [stdout]    |            ^^^^^ help: convert the identifier to upper camel case (notice the capitalization): `U32ff`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_camel_case_types)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/grid/mod.rs:84:20
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 if (i % 3 == 0) { Cell::Alive } else { Cell::Dead }
[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/grid/mod.rs:208:9
[INFO] [stdout]     |
[INFO] [stdout] 208 |         ((i % (last_index)) + (last_index) * (i == 0) as u32) // Q: Optimize "j == 0" with some bitwise operator?
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 53.24s
[INFO] running `Command { std: "docker" "inspect" "c0fcc2d3f6f168178e8c0ad0e450cdb21ff03872beedaffd022f901fba7f1a7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c0fcc2d3f6f168178e8c0ad0e450cdb21ff03872beedaffd022f901fba7f1a7c", kill_on_drop: false }`
[INFO] [stdout] c0fcc2d3f6f168178e8c0ad0e450cdb21ff03872beedaffd022f901fba7f1a7c