[INFO] cloning repository https://github.com/Antti/rubygems-rust-experiments [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Antti/rubygems-rust-experiments" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntti%2Frubygems-rust-experiments", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntti%2Frubygems-rust-experiments'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f5766bd8baf4aa90dd8e42c74b31c4af85ed32a7 [INFO] documenting Antti/rubygems-rust-experiments against try#66dfc4e010913fbed0c4ea91fc2c010004b0f441 for pr-73566 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FAntti%2Frubygems-rust-experiments" "/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/Antti/rubygems-rust-experiments 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/Antti/rubygems-rust-experiments [INFO] finished tweaking git repo https://github.com/Antti/rubygems-rust-experiments [INFO] tweaked toml for git repo https://github.com/Antti/rubygems-rust-experiments written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/Antti/rubygems-rust-experiments 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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 22c84c86edce47181472031909bd2393b1a6f381064248dbccde25a436410b62 [INFO] running `Command { std: "docker" "start" "-a" "22c84c86edce47181472031909bd2393b1a6f381064248dbccde25a436410b62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "22c84c86edce47181472031909bd2393b1a6f381064248dbccde25a436410b62", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "22c84c86edce47181472031909bd2393b1a6f381064248dbccde25a436410b62", kill_on_drop: false }` [INFO] [stdout] 22c84c86edce47181472031909bd2393b1a6f381064248dbccde25a436410b62 [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] 2ada31a6b2c563a8eb8922d326a7daddbbc4375d72d530e6ceb957c521d66de3 [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" "2ada31a6b2c563a8eb8922d326a7daddbbc4375d72d530e6ceb957c521d66de3", kill_on_drop: false }` [INFO] [stderr] Documenting test_ruby v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around block return value [INFO] [stdout] --> src/macros.rs:20:5 [INFO] [stdout] | [INFO] [stdout] 20 | (x as u32 & RUBY_FLONUM_MASK == RUBY_FLONUM_FLAG) [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/macros.rs:25:5 [INFO] [stdout] | [INFO] [stdout] 25 | ((x as u32 & (!((!0)<