[INFO] fetching crate netsim 0.2.5...
[INFO] documenting netsim-0.2.5 against beta-2020-08-29 for beta-1.47-rustdoc-1
[INFO] extracting crate netsim 0.2.5 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate netsim 0.2.5 on toolchain beta-2020-08-29
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate netsim 0.2.5
[INFO] finished tweaking crates.io crate netsim 0.2.5
[INFO] tweaked toml for crates.io crate netsim 0.2.5 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-08-29" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded net2 v0.2.32
[INFO] [stderr]   Downloaded net-literals v0.1.2
[INFO] [stderr]   Downloaded backtrace v0.3.11
[INFO] [stderr]   Downloaded quine-mc_cluskey v0.2.4
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[INFO] [stderr]   Downloaded mio v0.6.14
[INFO] [stderr]   Downloaded backtrace-sys v0.1.37
[INFO] [stderr]   Downloaded if_chain v0.1.3
[INFO] [stderr]   Downloaded cargo_metadata v0.5.8
[INFO] [stderr]   Downloaded future-utils v0.8.0
[INFO] [stderr]   Downloaded proc-macro-hack v0.4.2
[INFO] [stderr]   Downloaded tokio v0.1.7
[INFO] [stderr]   Downloaded lazycell v0.6.0
[INFO] [stderr]   Downloaded statrs v0.9.0
[INFO] [stderr]   Downloaded proc-macro-hack-impl v0.4.2
[INFO] [stderr]   Downloaded capabilities v0.3.0
[INFO] [stderr]   Downloaded rand_derive v0.3.1
[INFO] [stderr]   Downloaded unwrap v1.2.1
[INFO] [stderr]   Downloaded net-literals-impl v0.1.2
[INFO] [stderr]   Downloaded clippy v0.0.201
[INFO] [stderr]   Downloaded libc v0.2.41
[INFO] [stderr]   Downloaded clippy_lints v0.0.201
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-08-29" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c18fe3afa390cbbc7e2b619d0c09bc5fe5593222a226fe6315af41fd6aefbd87
[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" "c18fe3afa390cbbc7e2b619d0c09bc5fe5593222a226fe6315af41fd6aefbd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c18fe3afa390cbbc7e2b619d0c09bc5fe5593222a226fe6315af41fd6aefbd87", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c18fe3afa390cbbc7e2b619d0c09bc5fe5593222a226fe6315af41fd6aefbd87", kill_on_drop: false }`
[INFO] [stdout] c18fe3afa390cbbc7e2b619d0c09bc5fe5593222a226fe6315af41fd6aefbd87
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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" "+beta-2020-08-29" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80e5e7ac41a764fce94fcca025d05860b34c3a461015ef68054fcb24c1b1a5b4
[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" "80e5e7ac41a764fce94fcca025d05860b34c3a461015ef68054fcb24c1b1a5b4", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.41
[INFO] [stderr]     Checking lazycell v0.6.0
[INFO] [stderr]    Compiling proc-macro-hack-impl v0.4.2
[INFO] [stderr]    Compiling capabilities v0.3.0
[INFO] [stderr]     Checking unwrap v1.2.1
[INFO] [stderr]     Checking ioctl-sys v0.5.2
[INFO] [stderr]    Compiling parking_lot_core v0.4.0
[INFO] [stderr]    Compiling rand_derive v0.3.1
[INFO] [stderr]    Compiling proc-macro-hack v0.4.2
[INFO] [stderr]    Compiling net-literals-impl v0.1.2
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking rand_os v0.1.3
[INFO] [stderr]     Checking num_cpus v1.10.1
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking get_if_addrs v0.5.3
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.18
[INFO] [stderr]     Checking rand v0.6.5
[INFO] [stderr]     Checking net-literals v0.1.2
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]     Checking tokio-io v0.1.13
[INFO] [stderr]     Checking rand v0.3.23
[INFO] [stderr]     Checking statrs v0.9.0
[INFO] [stderr]     Checking tokio-codec v0.1.2
[INFO] [stderr]     Checking tokio-fs v0.1.7
[INFO] [stderr]     Checking parking_lot v0.7.1
[INFO] [stderr]     Checking tokio-reactor v0.1.9
[INFO] [stderr]     Checking tokio-tcp v0.1.4
[INFO] [stderr]     Checking tokio-udp v0.1.6
[INFO] [stderr]     Checking tokio v0.1.7
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking future-utils v0.8.0
[INFO] [stderr]  Documenting netsim v0.2.5 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/iface/config.rs:427:17
[INFO] [stdout]     |
[INFO] [stdout] 427 |                 { buffer.as_mut_ptr() as *mut _ }
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_braces)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/iface/config.rs:446:17
[INFO] [stdout]     |
[INFO] [stdout] 446 |                 { buffer.as_mut_ptr().offset(data_start as isize) as *mut _ }
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/iface/config.rs:459:17
[INFO] [stdout]     |
[INFO] [stdout] 459 |                 { buffer.as_mut_ptr().offset(attr_header_start as isize) as *mut _ }
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/iface/config.rs:500:21
[INFO] [stdout]     |
[INFO] [stdout] 500 |                     { buffer.as_ptr() as *const _ }
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary braces around block return value
[INFO] [stdout]    --> src/iface/config.rs:513:21
[INFO] [stdout]     |
[INFO] [stdout] 513 |                     { buffer.as_ptr().offset(error_start as isize) as *const _ }
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 22.80s
[INFO] running `Command { std: "docker" "inspect" "80e5e7ac41a764fce94fcca025d05860b34c3a461015ef68054fcb24c1b1a5b4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80e5e7ac41a764fce94fcca025d05860b34c3a461015ef68054fcb24c1b1a5b4", kill_on_drop: false }`
[INFO] [stdout] 80e5e7ac41a764fce94fcca025d05860b34c3a461015ef68054fcb24c1b1a5b4