[INFO] cloning repository https://github.com/jeffrey-xiao/hash-rings-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeffrey-xiao/hash-rings-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffrey-xiao%2Fhash-rings-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffrey-xiao%2Fhash-rings-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 78b459660ca2d83a2317db8c3bf7b066bec6f141
[INFO] documenting jeffrey-xiao/hash-rings-rs against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeffrey-xiao%2Fhash-rings-rs" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeffrey-xiao/hash-rings-rs on toolchain beta-2022-05-20
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeffrey-xiao/hash-rings-rs
[INFO] finished tweaking git repo https://github.com/jeffrey-xiao/hash-rings-rs
[INFO] tweaked toml for git repo https://github.com/jeffrey-xiao/hash-rings-rs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-05-20" "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] a24d6b74d764486a2da9663dccd76888af232a436bbef025d891b94cef297f27
[INFO] running `Command { std: "docker" "start" "-a" "a24d6b74d764486a2da9663dccd76888af232a436bbef025d891b94cef297f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a24d6b74d764486a2da9663dccd76888af232a436bbef025d891b94cef297f27", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a24d6b74d764486a2da9663dccd76888af232a436bbef025d891b94cef297f27", kill_on_drop: false }`
[INFO] [stdout] a24d6b74d764486a2da9663dccd76888af232a436bbef025d891b94cef297f27
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "+beta-2022-05-20" "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] f6944ece5bdb2768cefa74d24fbd4c13b557dff4a9711553626e2efd3fce4258
[INFO] running `Command { std: "docker" "start" "-a" "f6944ece5bdb2768cefa74d24fbd4c13b557dff4a9711553626e2efd3fce4258", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]  Documenting hash-rings v1.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking hash-rings v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/maglev.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 207 -     type Item = (&'a T);
[INFO] [stdout] 207 +     type Item = &'a T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/mpc.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 269 -     type Item = (&'a T);
[INFO] [stdout] 269 +     type Item = &'a T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/maglev.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 207 -     type Item = (&'a T);
[INFO] [stdout] 207 +     type Item = &'a T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/mpc.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 269 -     type Item = (&'a T);
[INFO] [stdout] 269 +     type Item = &'a T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.87s
[INFO] running `Command { std: "docker" "inspect" "f6944ece5bdb2768cefa74d24fbd4c13b557dff4a9711553626e2efd3fce4258", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f6944ece5bdb2768cefa74d24fbd4c13b557dff4a9711553626e2efd3fce4258", kill_on_drop: false }`
[INFO] [stdout] f6944ece5bdb2768cefa74d24fbd4c13b557dff4a9711553626e2efd3fce4258
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "DOCS_RS=1" "-e" "RUSTC_BOOTSTRAP=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" "+beta-2022-05-20" "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] 8f5e88642def07372432e132d8630acfdeba19393f27b33635823dd9c3fe9eec
[INFO] running `Command { std: "docker" "start" "-a" "8f5e88642def07372432e132d8630acfdeba19393f27b33635823dd9c3fe9eec", kill_on_drop: false }`
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking hamming v0.1.3
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]     Checking primal-estimate v0.2.1
[INFO] [stderr]     Checking siphasher v0.2.3
[INFO] [stderr]     Checking primal-bit v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]     Checking smallvec v0.6.14
[INFO] [stderr]     Checking primal-sieve v0.2.9
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking primal-check v0.2.3
[INFO] [stderr]     Checking primal v0.2.3
[INFO] [stderr]  Documenting hash-rings v1.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/maglev.rs:207:17
[INFO] [stdout]     |
[INFO] [stdout] 207 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^     ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 207 -     type Item = (&'a T);
[INFO] [stdout] 207 +     type Item = &'a T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/mpc.rs:269:17
[INFO] [stdout]     |
[INFO] [stdout] 269 |     type Item = (&'a T);
[INFO] [stdout]     |                 ^     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 269 -     type Item = (&'a T);
[INFO] [stdout] 269 +     type Item = &'a T;
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.57s
[INFO] running `Command { std: "docker" "inspect" "8f5e88642def07372432e132d8630acfdeba19393f27b33635823dd9c3fe9eec", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f5e88642def07372432e132d8630acfdeba19393f27b33635823dd9c3fe9eec", kill_on_drop: false }`
[INFO] [stdout] 8f5e88642def07372432e132d8630acfdeba19393f27b33635823dd9c3fe9eec