[INFO] fetching crate driver-cp2130 1.0.0-alpha.0...
[INFO] documenting driver-cp2130-1.0.0-alpha.0 against 1.46.0 for beta-1.47-rustdoc-1
[INFO] extracting crate driver-cp2130 1.0.0-alpha.0 into /workspace/builds/worker-2/source
[INFO] validating manifest of crates.io crate driver-cp2130 1.0.0-alpha.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] removed /workspace/builds/worker-2/source/.cargo/config
[INFO] started tweaking crates.io crate driver-cp2130 1.0.0-alpha.0
[INFO] finished tweaking crates.io crate driver-cp2130 1.0.0-alpha.0
[INFO] tweaked toml for crates.io crate driver-cp2130 1.0.0-alpha.0 written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate crates.io crate driver-cp2130 1.0.0-alpha.0 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-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] fb762bd471ab28a56e227483ecfc1adee01289ee05790b6573b14a5e031a56ba
[INFO] running `Command { std: "docker" "start" "-a" "fb762bd471ab28a56e227483ecfc1adee01289ee05790b6573b14a5e031a56ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb762bd471ab28a56e227483ecfc1adee01289ee05790b6573b14a5e031a56ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb762bd471ab28a56e227483ecfc1adee01289ee05790b6573b14a5e031a56ba", kill_on_drop: false }`
[INFO] [stdout] fb762bd471ab28a56e227483ecfc1adee01289ee05790b6573b14a5e031a56ba
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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] c5ab677603032bf68fb553559f229dc71b5284a460b7576adf66d8feaa87ac6c
[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" "c5ab677603032bf68fb553559f229dc71b5284a460b7576adf66d8feaa87ac6c", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.33
[INFO] [stderr]     Checking adler32 v1.1.0
[INFO] [stderr]     Checking gimli v0.21.0
[INFO] [stderr]     Checking bit-vec v0.6.2
[INFO] [stderr]    Compiling driver-cp2130 v1.0.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling libusb-sys v0.2.3
[INFO] [stderr]     Checking embedded-hal v1.0.0-alpha.1
[INFO] [stderr]     Checking dirs-sys v0.3.5
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking getrandom v0.1.14
[INFO] [stderr]     Checking miniz_oxide v0.3.7
[INFO] [stderr]     Checking clap v2.33.1
[INFO] [stderr]     Checking dirs v2.0.2
[INFO] [stderr]     Checking bit-set v0.2.0
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking term v0.6.1
[INFO] [stderr]     Checking libusb v0.3.0
[INFO] [stderr]     Checking chrono v0.4.11
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking simplelog v0.7.6
[INFO] [stderr]     Checking addr2line v0.12.2
[INFO] [stderr]     Checking backtrace v0.3.49
[INFO] [stderr]    Compiling syn-mid v0.5.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.2
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]    Compiling proc-macro-error v1.0.2
[INFO] [stderr]    Compiling structopt-derive v0.4.8
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking structopt v0.3.15
[INFO] [stderr]  Documenting driver-cp2130 v1.0.0-alpha.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self`
[INFO] [stdout]    --> src/lib.rs:199:35
[INFO] [stdout]     |
[INFO] [stdout] 199 | use embedded_hal::blocking::spi::{self, Write, Transfer};
[INFO] [stdout]     |                                   ^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 37.93s
[INFO] running `Command { std: "docker" "inspect" "c5ab677603032bf68fb553559f229dc71b5284a460b7576adf66d8feaa87ac6c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5ab677603032bf68fb553559f229dc71b5284a460b7576adf66d8feaa87ac6c", kill_on_drop: false }`
[INFO] [stdout] c5ab677603032bf68fb553559f229dc71b5284a460b7576adf66d8feaa87ac6c