[INFO] fetching crate ufire_sht20 0.9.1...
[INFO] documenting ufire_sht20-0.9.1 against beta-2020-10-09 for beta-1.48-rustdoc-1
[INFO] extracting crate ufire_sht20 0.9.1 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate ufire_sht20 0.9.1 on toolchain beta-2020-10-09
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate ufire_sht20 0.9.1
[INFO] finished tweaking crates.io crate ufire_sht20 0.9.1
[INFO] tweaked toml for crates.io crate ufire_sht20 0.9.1 written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate crates.io crate ufire_sht20 0.9.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-10-09" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded memchr v2.2.0
[INFO] [stderr]   Downloaded serde v1.0.88
[INFO] [stderr]   Downloaded serde_derive v1.0.27
[INFO] [stderr]   Downloaded bytes v0.4.6
[INFO] [stderr]   Downloaded encode_unicode v0.3.5
[INFO] [stderr]   Downloaded cc v1.0.5
[INFO] [stderr]   Downloaded bitflags v1.0.1
[INFO] [stderr]   Downloaded remove_dir_all v0.3.0
[INFO] [stderr]   Downloaded dtoa v0.4.2
[INFO] [stderr]   Downloaded num-traits v0.2.1
[INFO] [stderr]   Downloaded serde_derive_internals v0.19.0
[INFO] [stderr]   Downloaded gcc v0.3.54
[INFO] [stderr]   Downloaded semver v0.8.0
[INFO] [stderr]   Downloaded backtrace v0.3.5
[INFO] [stderr]   Downloaded tempdir v0.3.6
[INFO] [stderr]   Downloaded serde_json v1.0.10
[INFO] [stderr]   Downloaded pulldown-cmark v0.1.2
[INFO] [stderr]   Downloaded libc v0.2.37
[INFO] [stderr]   Downloaded rustc-demangle v0.1.7
[INFO] [stderr]   Downloaded backtrace-sys v0.1.16
[INFO] [stderr]   Downloaded redox_syscall v0.1.51
[INFO] [stderr]   Downloaded csv v1.0.5
[INFO] [stderr]   Downloaded csv-core v0.1.5
[INFO] [stderr]   Downloaded shrust v0.0.6
[INFO] [stderr]   Downloaded term v0.5.1
[INFO] [stderr]   Downloaded i2cdev v0.3.2
[INFO] [stderr]   Downloaded cargo_metadata v0.3.3
[INFO] [stderr]   Downloaded cfg-if v0.1.2
[INFO] [stderr]   Downloaded byteorder v1.2.1
[INFO] [stderr]   Downloaded winapi v0.3.4
[INFO] [stderr]   Downloaded bytecount v0.2.0
[INFO] [stderr]   Downloaded skeptic v0.13.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-10-09" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cd3c7de7fba24c0b15d161c68cb58c5cc70e3db0f3785555c04682233e1d33f8
[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" "cd3c7de7fba24c0b15d161c68cb58c5cc70e3db0f3785555c04682233e1d33f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cd3c7de7fba24c0b15d161c68cb58c5cc70e3db0f3785555c04682233e1d33f8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cd3c7de7fba24c0b15d161c68cb58c5cc70e3db0f3785555c04682233e1d33f8", kill_on_drop: false }`
[INFO] [stdout] cd3c7de7fba24c0b15d161c68cb58c5cc70e3db0f3785555c04682233e1d33f8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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-2020-10-09" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] bc0ca461f7baf8e37d539687e926277296e7c7a245530c1ea91ccf782b88e46f
[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" "bc0ca461f7baf8e37d539687e926277296e7c7a245530c1ea91ccf782b88e46f", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.88
[INFO] [stderr]     Checking libc v0.2.37
[INFO] [stderr]    Compiling cc v1.0.5
[INFO] [stderr]    Compiling rustc-demangle v0.1.7
[INFO] [stderr]    Compiling cfg-if v0.1.2
[INFO] [stderr]    Compiling dtoa v0.4.2
[INFO] [stderr]    Compiling memchr v2.2.0
[INFO] [stderr]    Compiling num-traits v0.2.1
[INFO] [stderr]    Compiling bytecount v0.2.0
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]     Checking bitflags v1.0.1
[INFO] [stderr]     Checking encode_unicode v0.3.5
[INFO] [stderr]     Checking term v0.5.1
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]    Compiling remove_dir_all v0.3.0
[INFO] [stderr]    Compiling rand v0.4.2
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking bytes v0.4.6
[INFO] [stderr]     Checking csv-core v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stderr]    Compiling backtrace-sys v0.1.16
[INFO] [stderr]    Compiling tempdir v0.3.6
[INFO] [stderr]     Checking nix v0.10.0
[INFO] [stderr]     Checking csv v1.0.5
[INFO] [stderr]    Compiling semver v0.8.0
[INFO] [stderr]    Compiling serde_json v1.0.10
[INFO] [stderr]     Checking prettytable-rs v0.8.0
[INFO] [stderr]     Checking shrust v0.0.6
[INFO] [stderr]    Compiling backtrace v0.3.5
[INFO] [stderr]    Compiling error-chain v0.11.0
[INFO] [stderr]    Compiling cargo_metadata v0.3.3
[INFO] [stderr]    Compiling skeptic v0.13.2
[INFO] [stderr]    Compiling i2cdev v0.3.2
[INFO] [stderr]     Checking ufire_sht20 v0.9.1 (/opt/rustwide/workdir)
[INFO] [stderr]  Documenting ufire_sht20 v0.9.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:61:45
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn temperature(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[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:80:42
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn humidity(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]    |                                          ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:125:62
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/lib.rs:61:45
[INFO] [stdout]    |
[INFO] [stdout] 61 |     pub fn temperature(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[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:80:42
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn humidity(&mut self) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]    |                                          ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> src/lib.rs:125:62
[INFO] [stdout]     |
[INFO] [stdout] 125 |     pub fn _read_register(&mut self, register: u8) -> Result<(f32), Box<LinuxI2CError>> {
[INFO] [stdout]     |                                                              ^^^^^ help: remove these parentheses
[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 35.32s
[INFO] running `Command { std: "docker" "inspect" "bc0ca461f7baf8e37d539687e926277296e7c7a245530c1ea91ccf782b88e46f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bc0ca461f7baf8e37d539687e926277296e7c7a245530c1ea91ccf782b88e46f", kill_on_drop: false }`
[INFO] [stdout] bc0ca461f7baf8e37d539687e926277296e7c7a245530c1ea91ccf782b88e46f
