[INFO] fetching crate usbsdmux 0.1.0...
[INFO] checking usbsdmux-0.1.0 against master#339e19697a39a78f4d669c217b7d21109215de41 for pr-81213
[INFO] extracting crate usbsdmux 0.1.0 into /workspace/builds/worker-4/source
[INFO] validating manifest of crates.io crate usbsdmux 0.1.0 on toolchain 339e19697a39a78f4d669c217b7d21109215de41
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate usbsdmux 0.1.0
[INFO] finished tweaking crates.io crate usbsdmux 0.1.0
[INFO] tweaked toml for crates.io crate usbsdmux 0.1.0 written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate crates.io crate usbsdmux 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "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] cec6f757ff0528d6be1685591a56078663dfda521fc98f15ad1feb2e239c7fd4
[INFO] running `Command { std: "docker" "start" "-a" "cec6f757ff0528d6be1685591a56078663dfda521fc98f15ad1feb2e239c7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cec6f757ff0528d6be1685591a56078663dfda521fc98f15ad1feb2e239c7fd4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cec6f757ff0528d6be1685591a56078663dfda521fc98f15ad1feb2e239c7fd4", kill_on_drop: false }`
[INFO] [stdout] cec6f757ff0528d6be1685591a56078663dfda521fc98f15ad1feb2e239c7fd4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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=forbid" "-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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+339e19697a39a78f4d669c217b7d21109215de41" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 936228a51468ad3fd2a4fe3bf939785ddc16f02f6b91cc2236ceedb05cbd52d4
[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" "936228a51468ad3fd2a4fe3bf939785ddc16f02f6b91cc2236ceedb05cbd52d4", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling syn v1.0.55
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-segmentation v1.7.1
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking ansi_term v0.11.0
[INFO] [stderr]     Checking strsim v0.8.0
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]    Compiling structopt-derive v0.4.14
[INFO] [stderr]     Checking usb2642-i2c v0.1.1
[INFO] [stderr]     Checking usbsdmux v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variant is never constructed: `InputPort`
[INFO] [stdout]   --> src/pca9536.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     InputPort = 0,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PolarityInversion`
[INFO] [stdout]   --> src/pca9536.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     PolarityInversion = 2,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Input`
[INFO] [stdout]   --> src/pca9536.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Input = 1,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_register`
[INFO] [stdout]   --> src/pca9536.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn read_register(&mut self, register: Register) -> Result<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_input_port`
[INFO] [stdout]   --> src/pca9536.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn get_input_port(&mut self) -> Result<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_polarity_inversion`
[INFO] [stdout]   --> src/pca9536.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn set_polarity_inversion(&mut self, pins: GpioPin) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking structopt v0.3.21
[INFO] [stdout] warning: variant is never constructed: `InputPort`
[INFO] [stdout]   --> src/pca9536.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     InputPort = 0,
[INFO] [stdout]    |     ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `PolarityInversion`
[INFO] [stdout]   --> src/pca9536.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     PolarityInversion = 2,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Input`
[INFO] [stdout]   --> src/pca9536.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     Input = 1,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `read_register`
[INFO] [stdout]   --> src/pca9536.rs:54:8
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn read_register(&mut self, register: Register) -> Result<u8> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_input_port`
[INFO] [stdout]   --> src/pca9536.rs:60:12
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub fn get_input_port(&mut self) -> Result<u8> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_polarity_inversion`
[INFO] [stdout]   --> src/pca9536.rs:68:12
[INFO] [stdout]    |
[INFO] [stdout] 68 |     pub fn set_polarity_inversion(&mut self, pins: GpioPin) -> Result<()> {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.11s
[INFO] running `Command { std: "docker" "inspect" "936228a51468ad3fd2a4fe3bf939785ddc16f02f6b91cc2236ceedb05cbd52d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "936228a51468ad3fd2a4fe3bf939785ddc16f02f6b91cc2236ceedb05cbd52d4", kill_on_drop: false }`
[INFO] [stdout] 936228a51468ad3fd2a4fe3bf939785ddc16f02f6b91cc2236ceedb05cbd52d4