[INFO] cloning repository https://github.com/Shuternay/factorization_machine [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Shuternay/factorization_machine" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShuternay%2Ffactorization_machine", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShuternay%2Ffactorization_machine'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f935feb6948591d30df2136b16576348f5c69c9b [INFO] documenting Shuternay/factorization_machine against 1.61.0 for beta-1.62-rustdoc-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FShuternay%2Ffactorization_machine" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/Shuternay/factorization_machine on toolchain 1.61.0 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/Shuternay/factorization_machine [INFO] finished tweaking git repo https://github.com/Shuternay/factorization_machine [INFO] tweaked toml for git repo https://github.com/Shuternay/factorization_machine written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/Shuternay/factorization_machine already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.61.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde_derive v1.0.37 [INFO] [stderr] Downloaded serde_derive_internals v0.23.0 [INFO] [stderr] Downloaded if_chain v0.1.2 [INFO] [stderr] Downloaded serde v1.0.37 [INFO] [stderr] Downloaded clippy_lints v0.0.193 [INFO] [stderr] Downloaded clippy v0.0.193 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] e94065609deedbbac90ff2d4cad24ea26e8c1997f88e48e1faf0b0b6ec77a6b4 [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" "e94065609deedbbac90ff2d4cad24ea26e8c1997f88e48e1faf0b0b6ec77a6b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "e94065609deedbbac90ff2d4cad24ea26e8c1997f88e48e1faf0b0b6ec77a6b4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e94065609deedbbac90ff2d4cad24ea26e8c1997f88e48e1faf0b0b6ec77a6b4", kill_on_drop: false }` [INFO] [stdout] e94065609deedbbac90ff2d4cad24ea26e8c1997f88e48e1faf0b0b6ec77a6b4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4fdd3b4a6ef7f49a86a4a3eb6f5f240de4999fb7410202ae60d90c2c3e35361c [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" "4fdd3b4a6ef7f49a86a4a3eb6f5f240de4999fb7410202ae60d90c2c3e35361c", kill_on_drop: false }` [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Compiling rayon-core v1.4.0 [INFO] [stderr] Checking serde v1.0.37 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking argparse v0.2.1 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling proc-macro2 v0.3.6 [INFO] [stderr] Checking csv-core v0.1.4 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Compiling quote v0.5.1 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling syn v0.13.1 [INFO] [stderr] Checking rayon v1.0.1 [INFO] [stderr] Compiling serde_derive_internals v0.23.0 [INFO] [stderr] Compiling serde_derive v1.0.37 [INFO] [stderr] Checking serde_json v1.0.17 [INFO] [stderr] Checking csv v1.0.0-beta.5 [INFO] [stderr] Documenting factorization_machine v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/dataset.rs:92:74 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn from_csv(path: &str, target_field: &str, bits: u32) -> Result<(Dataset), Box> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 92 - pub fn from_csv(path: &str, target_field: &str, bits: u32) -> Result<(Dataset), Box> { [INFO] [stdout] 92 + pub fn from_csv(path: &str, target_field: &str, bits: u32) -> Result> { [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 24.26s [INFO] running `Command { std: "docker" "inspect" "4fdd3b4a6ef7f49a86a4a3eb6f5f240de4999fb7410202ae60d90c2c3e35361c", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4fdd3b4a6ef7f49a86a4a3eb6f5f240de4999fb7410202ae60d90c2c3e35361c", kill_on_drop: false }` [INFO] [stdout] 4fdd3b4a6ef7f49a86a4a3eb6f5f240de4999fb7410202ae60d90c2c3e35361c [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d190cb871061d98bc6d0581d85cb2ecb09a0f8a142ba5463de30be9999fc3251" "/opt/rustwide/cargo-home/bin/cargo" "+1.61.0" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", 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] 5cba44aae8e54ffb6477c6e8ff2c2a2b12045eafb51a083cc3f5ba6c73789daa [INFO] running `Command { std: "docker" "start" "-a" "5cba44aae8e54ffb6477c6e8ff2c2a2b12045eafb51a083cc3f5ba6c73789daa", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Checking libc v0.2.40 [INFO] [stderr] Compiling unicode-xid v0.1.0 [INFO] [stderr] Checking cfg-if v0.1.3 [INFO] [stderr] Checking nodrop v0.1.12 [INFO] [stderr] Checking lazy_static v1.0.0 [INFO] [stderr] Checking memoffset v0.2.1 [INFO] [stderr] Checking scopeguard v0.3.3 [INFO] [stderr] Compiling rayon-core v1.4.0 [INFO] [stderr] Checking serde v1.0.37 [INFO] [stderr] Checking either v1.5.0 [INFO] [stderr] Checking dtoa v0.4.2 [INFO] [stderr] Checking itoa v0.4.1 [INFO] [stderr] Checking argparse v0.2.1 [INFO] [stderr] Checking arrayvec v0.4.7 [INFO] [stderr] Checking crossbeam-utils v0.2.2 [INFO] [stderr] Compiling proc-macro2 v0.3.6 [INFO] [stderr] Checking crossbeam-epoch v0.3.1 [INFO] [stderr] Checking rand v0.4.2 [INFO] [stderr] Checking num_cpus v1.8.0 [INFO] [stderr] Checking memchr v2.0.1 [INFO] [stderr] Compiling quote v0.5.1 [INFO] [stderr] Checking csv-core v0.1.4 [INFO] [stderr] Checking crossbeam-deque v0.2.0 [INFO] [stderr] Compiling syn v0.13.1 [INFO] [stderr] Checking rayon v1.0.1 [INFO] [stderr] Compiling serde_derive_internals v0.23.0 [INFO] [stderr] Checking csv v1.0.0-beta.5 [INFO] [stderr] Checking serde_json v1.0.17 [INFO] [stderr] Compiling serde_derive v1.0.37 [INFO] [stderr] Documenting factorization_machine v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unnecessary parentheses around type [INFO] [stdout] --> src/dataset.rs:92:74 [INFO] [stdout] | [INFO] [stdout] 92 | pub fn from_csv(path: &str, target_field: &str, bits: u32) -> Result<(Dataset), Box> { [INFO] [stdout] | ^ ^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_parens)]` on by default [INFO] [stdout] help: remove these parentheses [INFO] [stdout] | [INFO] [stdout] 92 - pub fn from_csv(path: &str, target_field: &str, bits: u32) -> Result<(Dataset), Box> { [INFO] [stdout] 92 + pub fn from_csv(path: &str, target_field: &str, bits: u32) -> Result> { [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 4m 51s [INFO] running `Command { std: "docker" "inspect" "5cba44aae8e54ffb6477c6e8ff2c2a2b12045eafb51a083cc3f5ba6c73789daa", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5cba44aae8e54ffb6477c6e8ff2c2a2b12045eafb51a083cc3f5ba6c73789daa", kill_on_drop: false }` [INFO] [stdout] 5cba44aae8e54ffb6477c6e8ff2c2a2b12045eafb51a083cc3f5ba6c73789daa