[INFO] cloning repository https://github.com/mwylde/rumble
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mwylde/rumble" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwylde%2Frumble", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwylde%2Frumble'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fe951504f7271067109cb675639a5d911683b5fb
[INFO] documenting mwylde/rumble against 1.46.0 for beta-1.47-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmwylde%2Frumble" "/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/mwylde/rumble 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 git repo https://github.com/mwylde/rumble
[INFO] finished tweaking git repo https://github.com/mwylde/rumble
[INFO] tweaked toml for git repo https://github.com/mwylde/rumble written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/mwylde/rumble already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.46.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[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" "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] 51b22bcae9d55d8dd4c599e78f1cd212576df5cc405eb4084dc59f779fcb4239
[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" "51b22bcae9d55d8dd4c599e78f1cd212576df5cc405eb4084dc59f779fcb4239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51b22bcae9d55d8dd4c599e78f1cd212576df5cc405eb4084dc59f779fcb4239", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51b22bcae9d55d8dd4c599e78f1cd212576df5cc405eb4084dc59f779fcb4239", kill_on_drop: false }`
[INFO] [stdout] 51b22bcae9d55d8dd4c599e78f1cd212576df5cc405eb4084dc59f779fcb4239
[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" "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] c8981a5325eaa1a2f1370f8e37ccc33617695e579c1ff120cdd76a983e88c9c2
[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" "c8981a5325eaa1a2f1370f8e37ccc33617695e579c1ff120cdd76a983e88c9c2", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling libc v0.2.45
[INFO] [stderr]    Compiling cc v1.0.28
[INFO] [stderr]    Compiling autocfg v0.1.1
[INFO] [stderr]    Compiling failure_derive v0.1.4
[INFO] [stderr]    Compiling nix v0.12.0
[INFO] [stderr]     Checking rustc-demangle v0.1.11
[INFO] [stderr]     Checking byteorder v1.2.7
[INFO] [stderr]    Compiling memchr v2.1.2
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling syn v0.15.23
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling backtrace v0.3.13
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.28
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking nom v4.1.1
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]     Checking failure v0.1.4
[INFO] [stderr]  Documenting rumble v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:19:18
[INFO] [stdout]    |
[INFO] [stdout] 19 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (210i32 << 0i32) as (u32)) as
[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/bluez/mod.rs:19:43
[INFO] [stdout]    |
[INFO] [stdout] 19 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (210i32 << 0i32) as (u32)) as
[INFO] [stdout]    |                                           ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:19:71
[INFO] [stdout]    |
[INFO] [stdout] 19 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (210i32 << 0i32) as (u32)) as
[INFO] [stdout]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:20:9
[INFO] [stdout]    |
[INFO] [stdout] 20 |         (usize) | 4 /* (sizeof(i32)) */ << 0i32 + 8i32 + 8i32;
[INFO] [stdout]    |         ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:26:18
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (211i32 << 0i32) as (u32)) as (usize) |
[INFO] [stdout]    |                  ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:26:43
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (211i32 << 0i32) as (u32)) as (usize) |
[INFO] [stdout]    |                                           ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:26:71
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (211i32 << 0i32) as (u32)) as (usize) |
[INFO] [stdout]    |                                                                       ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/bluez/mod.rs:26:81
[INFO] [stdout]    |
[INFO] [stdout] 26 |         (b'H' as (i32) << 0i32 + 8i32) as (u32) | (211i32 << 0i32) as (u32)) as (usize) |
[INFO] [stdout]    |                                                                                 ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 17.50s
[INFO] running `Command { std: "docker" "inspect" "c8981a5325eaa1a2f1370f8e37ccc33617695e579c1ff120cdd76a983e88c9c2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c8981a5325eaa1a2f1370f8e37ccc33617695e579c1ff120cdd76a983e88c9c2", kill_on_drop: false }`
[INFO] [stdout] c8981a5325eaa1a2f1370f8e37ccc33617695e579c1ff120cdd76a983e88c9c2