[INFO] fetching crate rbpf 0.1.0...
[INFO] documenting rbpf-0.1.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate rbpf 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate rbpf 0.1.0 on toolchain 1.46.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rbpf 0.1.0
[INFO] finished tweaking crates.io crate rbpf 0.1.0
[INFO] tweaked toml for crates.io crate rbpf 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f610262f4140e2c779c8b8a11352c03ae9b672f19b556bd00ee2bcacddd13fd5
[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" "f610262f4140e2c779c8b8a11352c03ae9b672f19b556bd00ee2bcacddd13fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f610262f4140e2c779c8b8a11352c03ae9b672f19b556bd00ee2bcacddd13fd5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f610262f4140e2c779c8b8a11352c03ae9b672f19b556bd00ee2bcacddd13fd5", kill_on_drop: false }`
[INFO] [stdout] f610262f4140e2c779c8b8a11352c03ae9b672f19b556bd00ee2bcacddd13fd5
[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" "rustops/crates-build-env@sha256:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.46.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a8440160764f71fd9b66f5bfb670b48542fcf5eda87947e04b945b165acd18f3
[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" "a8440160764f71fd9b66f5bfb670b48542fcf5eda87947e04b945b165acd18f3", kill_on_drop: false }`
[INFO] [stderr]     Checking ascii v0.7.1
[INFO] [stderr]     Checking combine v2.5.2
[INFO] [stderr]  Documenting rbpf v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/jit.rs:904:15
[INFO] [stdout]     |
[INFO] [stdout] 904 |     -> Result<(JitProgram), Error> {
[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 type
[INFO] [stdout]     --> src/lib.rs:1539:45
[INFO] [stdout]      |
[INFO] [stdout] 1539 |     pub fn execute_program(&self) -> Result<(u64), Error> {
[INFO] [stdout]      |                                             ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]     --> src/lib.rs:1575:56
[INFO] [stdout]      |
[INFO] [stdout] 1575 |     pub unsafe fn execute_program_jit(&self) -> Result<(u64), Error> {
[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 4.41s
[INFO] running `Command { std: "docker" "inspect" "a8440160764f71fd9b66f5bfb670b48542fcf5eda87947e04b945b165acd18f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a8440160764f71fd9b66f5bfb670b48542fcf5eda87947e04b945b165acd18f3", kill_on_drop: false }`
[INFO] [stdout] a8440160764f71fd9b66f5bfb670b48542fcf5eda87947e04b945b165acd18f3