[INFO] fetching crate picontrol 0.2.1...
[INFO] documenting picontrol-0.2.1 against beta-2022-05-20 for beta-1.62-rustdoc-1
[INFO] extracting crate picontrol 0.2.1 into /workspace/builds/worker-26/source
[INFO] validating manifest of crates.io crate picontrol 0.2.1 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 crates.io crate picontrol 0.2.1
[INFO] finished tweaking crates.io crate picontrol 0.2.1
[INFO] tweaked toml for crates.io crate picontrol 0.2.1 written to /workspace/builds/worker-26/source/Cargo.toml
[INFO] crate crates.io crate picontrol 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-05-20" "fetch" "--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-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] [stdout] 6dc0a3b066e962e3929ec9716d46eea6d17521a34647da2078796ec26ec324d6
[INFO] running `Command { std: "docker" "start" "-a" "6dc0a3b066e962e3929ec9716d46eea6d17521a34647da2078796ec26ec324d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6dc0a3b066e962e3929ec9716d46eea6d17521a34647da2078796ec26ec324d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6dc0a3b066e962e3929ec9716d46eea6d17521a34647da2078796ec26ec324d6", kill_on_drop: false }`
[INFO] [stdout] 6dc0a3b066e962e3929ec9716d46eea6d17521a34647da2078796ec26ec324d6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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] [stdout] 60d79bf06db983e1bebafa857acf1eb47c65cd6e6ac2bb030694238d2d9b5ebd
[INFO] running `Command { std: "docker" "start" "-a" "60d79bf06db983e1bebafa857acf1eb47c65cd6e6ac2bb030694238d2d9b5ebd", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking picontrol v0.2.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting picontrol v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:178:75
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<(Vec<u8>)> {
[INFO] [stdout]     |                                                                           ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<(Vec<u8>)> {
[INFO] [stdout] 178 +     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:191:77
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<(bool)> {
[INFO] [stdout]     |                                                                             ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 -     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<(bool)> {
[INFO] [stdout] 191 +     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<bool> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:266:57
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn dump(&mut self, fp: &str) -> std::io::Result<(bool)> {
[INFO] [stdout]     |                                                         ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 266 -     pub fn dump(&mut self, fp: &str) -> std::io::Result<(bool)> {
[INFO] [stdout] 266 +     pub fn dump(&mut self, fp: &str) -> std::io::Result<bool> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:178:75
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<(Vec<u8>)> {
[INFO] [stdout]     |                                                                           ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<(Vec<u8>)> {
[INFO] [stdout] 178 +     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:191:77
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<(bool)> {
[INFO] [stdout]     |                                                                             ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 -     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<(bool)> {
[INFO] [stdout] 191 +     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<bool> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:266:57
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn dump(&mut self, fp: &str) -> std::io::Result<(bool)> {
[INFO] [stdout]     |                                                         ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 266 -     pub fn dump(&mut self, fp: &str) -> std::io::Result<(bool)> {
[INFO] [stdout] 266 +     pub fn dump(&mut self, fp: &str) -> std::io::Result<bool> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.67s
[INFO] running `Command { std: "docker" "inspect" "60d79bf06db983e1bebafa857acf1eb47c65cd6e6ac2bb030694238d2d9b5ebd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60d79bf06db983e1bebafa857acf1eb47c65cd6e6ac2bb030694238d2d9b5ebd", kill_on_drop: false }`
[INFO] [stdout] 60d79bf06db983e1bebafa857acf1eb47c65cd6e6ac2bb030694238d2d9b5ebd
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-26/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" "+beta-2022-05-20" "rustdoc" "--lib" "-Zrustdoc-map" "--frozen" "--message-format=json" "--" "-Z" "unstable-options" "--document-private-items", kill_on_drop: false }`
[INFO] [stdout] 56d3b5c0b836baa6f6ae00d0f3d91185db4e52de03b9982f6e9be09166ffab42
[INFO] running `Command { std: "docker" "start" "-a" "56d3b5c0b836baa6f6ae00d0f3d91185db4e52de03b9982f6e9be09166ffab42", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.65
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling byteorder v1.3.2
[INFO] [stderr]     Checking unicode-width v0.1.6
[INFO] [stderr]    Compiling nix v0.13.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]  Documenting picontrol v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:178:75
[INFO] [stdout]     |
[INFO] [stdout] 178 |     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<(Vec<u8>)> {
[INFO] [stdout]     |                                                                           ^       ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<(Vec<u8>)> {
[INFO] [stdout] 178 +     pub fn read(&mut self, offset: u64, length: usize) -> std::io::Result<Vec<u8>> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:191:77
[INFO] [stdout]     |
[INFO] [stdout] 191 |     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<(bool)> {
[INFO] [stdout]     |                                                                             ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 191 -     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<(bool)> {
[INFO] [stdout] 191 +     pub fn write(&mut self, offset: u64, data: &Vec<u8>) -> std::io::Result<bool> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:266:57
[INFO] [stdout]     |
[INFO] [stdout] 266 |     pub fn dump(&mut self, fp: &str) -> std::io::Result<(bool)> {
[INFO] [stdout]     |                                                         ^    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 266 -     pub fn dump(&mut self, fp: &str) -> std::io::Result<(bool)> {
[INFO] [stdout] 266 +     pub fn dump(&mut self, fp: &str) -> std::io::Result<bool> {
[INFO] [stdout]     | 
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.47s
[INFO] running `Command { std: "docker" "inspect" "56d3b5c0b836baa6f6ae00d0f3d91185db4e52de03b9982f6e9be09166ffab42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "56d3b5c0b836baa6f6ae00d0f3d91185db4e52de03b9982f6e9be09166ffab42", kill_on_drop: false }`
[INFO] [stdout] 56d3b5c0b836baa6f6ae00d0f3d91185db4e52de03b9982f6e9be09166ffab42