[INFO] fetching crate rppal 0.15.0...
[INFO] checking rppal-0.15.0 against master#385fa9d845dd326c6bbfd58c22244215e431948a for never-type-fallback-to-never
[INFO] extracting crate rppal 0.15.0 into /workspace/builds/worker-4-tc1/source
[INFO] validating manifest of crates.io crate rppal 0.15.0 on toolchain 385fa9d845dd326c6bbfd58c22244215e431948a
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rppal 0.15.0
[INFO] finished tweaking crates.io crate rppal 0.15.0
[INFO] tweaked toml for crates.io crate rppal 0.15.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate crates.io crate rppal 0.15.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded simple-signal v1.1.1
[INFO] [stderr]   Downloaded spin_sleep v1.1.1
[INFO] [stderr]   Downloaded embedded-hal v1.0.0-alpha.9
[INFO] [stderr]   Downloaded embedded-hal-nb v1.0.0-alpha.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e1889c920c982c9ee81c8bc0b1347afc997b61ffabcde6a08be6d0ead29683c6
[INFO] running `Command { std: "docker" "start" "-a" "e1889c920c982c9ee81c8bc0b1347afc997b61ffabcde6a08be6d0ead29683c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e1889c920c982c9ee81c8bc0b1347afc997b61ffabcde6a08be6d0ead29683c6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e1889c920c982c9ee81c8bc0b1347afc997b61ffabcde6a08be6d0ead29683c6", kill_on_drop: false }`
[INFO] [stdout] e1889c920c982c9ee81c8bc0b1347afc997b61ffabcde6a08be6d0ead29683c6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+385fa9d845dd326c6bbfd58c22244215e431948a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6e157bb3463a9e68a3a08242a535970fb8db0ab05da80aca582487fa33966eb0
[INFO] running `Command { std: "docker" "start" "-a" "6e157bb3463a9e68a3a08242a535970fb8db0ab05da80aca582487fa33966eb0", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking simple-signal v1.1.1
[INFO] [stderr]     Checking rppal v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/epoll.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     self, c_int, c_void, EFD_NONBLOCK, EFD_SEMAPHORE, EPOLL_CTL_ADD, EPOLL_CTL_DEL, EPOLL_CTL_MOD,
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EPOLLONESHOT`, `EPOLLOUT`
[INFO] [stdout]   --> src/gpio/epoll.rs:12:57
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use libc::{epoll_event, EPOLLERR, EPOLLET, EPOLLIN, EPOLLONESHOT, EPOLLOUT, EPOLLPRI};
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/bcm.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use libc::{self, c_void, off_t, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/rp1.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, c_void, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v1.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_ulong, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v2.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/soft_pwm.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, sched_param, timespec, CLOCK_MONOTONIC, PR_SET_TIMERSLACK, SCHED_RR};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/i2c/ioctl.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use libc::{self, c_int, c_ulong, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/spi/ioctl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{self, c_int, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/epoll.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     self, c_int, c_void, EFD_NONBLOCK, EFD_SEMAPHORE, EPOLL_CTL_ADD, EPOLL_CTL_DEL, EPOLL_CTL_MOD,
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EPOLLONESHOT`, `EPOLLOUT`
[INFO] [stdout]   --> src/gpio/epoll.rs:12:57
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use libc::{epoll_event, EPOLLERR, EPOLLET, EPOLLIN, EPOLLONESHOT, EPOLLOUT, EPOLLPRI};
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/bcm.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use libc::{self, c_void, off_t, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/rp1.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, c_void, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v1.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_ulong, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v2.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/soft_pwm.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, sched_param, timespec, CLOCK_MONOTONIC, PR_SET_TIMERSLACK, SCHED_RR};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/i2c/ioctl.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use libc::{self, c_int, c_ulong, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/spi/ioctl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{self, c_int, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `simple_signal` is imported redundantly
[INFO] [stdout]   --> examples/gpio_blinkled_signals.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 | use simple_signal::{self, Signal};
[INFO] [stdout]    |                     ^^^^ the item `simple_signal` is already defined by prelude
[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] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.34s
[INFO] running `Command { std: "docker" "inspect" "6e157bb3463a9e68a3a08242a535970fb8db0ab05da80aca582487fa33966eb0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6e157bb3463a9e68a3a08242a535970fb8db0ab05da80aca582487fa33966eb0", kill_on_drop: false }`
[INFO] [stdout] 6e157bb3463a9e68a3a08242a535970fb8db0ab05da80aca582487fa33966eb0
[INFO] checking rppal-0.15.0 against try#2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2 for never-type-fallback-to-never
[INFO] extracting crate rppal 0.15.0 into /workspace/builds/worker-4-tc2/source
[INFO] validating manifest of crates.io crate rppal 0.15.0 on toolchain 2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rppal 0.15.0
[INFO] finished tweaking crates.io crate rppal 0.15.0
[INFO] tweaked toml for crates.io crate rppal 0.15.0 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate crates.io crate rppal 0.15.0 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 91288d50bf37f639f9a29497dfdef8f06496fab339353fecf877c377f0453a11
[INFO] running `Command { std: "docker" "start" "-a" "91288d50bf37f639f9a29497dfdef8f06496fab339353fecf877c377f0453a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "91288d50bf37f639f9a29497dfdef8f06496fab339353fecf877c377f0453a11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "91288d50bf37f639f9a29497dfdef8f06496fab339353fecf877c377f0453a11", kill_on_drop: false }`
[INFO] [stdout] 91288d50bf37f639f9a29497dfdef8f06496fab339353fecf877c377f0453a11
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+2d84f2737f3bd9ebfcb07f75aa198d6cf7c715d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5edd4cf4105633221e7af68bf18cf0e9f9b732c5b60ec2026d8ce4775aef2f6e
[INFO] running `Command { std: "docker" "start" "-a" "5edd4cf4105633221e7af68bf18cf0e9f9b732c5b60ec2026d8ce4775aef2f6e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.148
[INFO] [stderr]     Checking simple-signal v1.1.1
[INFO] [stderr]     Checking rppal v0.15.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/epoll.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     self, c_int, c_void, EFD_NONBLOCK, EFD_SEMAPHORE, EPOLL_CTL_ADD, EPOLL_CTL_DEL, EPOLL_CTL_MOD,
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EPOLLONESHOT`, `EPOLLOUT`
[INFO] [stdout]   --> src/gpio/epoll.rs:12:57
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use libc::{epoll_event, EPOLLERR, EPOLLET, EPOLLIN, EPOLLONESHOT, EPOLLOUT, EPOLLPRI};
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/bcm.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use libc::{self, c_void, off_t, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/rp1.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, c_void, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v1.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_ulong, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v2.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/soft_pwm.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, sched_param, timespec, CLOCK_MONOTONIC, PR_SET_TIMERSLACK, SCHED_RR};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/i2c/ioctl.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use libc::{self, c_int, c_ulong, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/spi/ioctl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{self, c_int, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/epoll.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 |     self, c_int, c_void, EFD_NONBLOCK, EFD_SEMAPHORE, EPOLL_CTL_ADD, EPOLL_CTL_DEL, EPOLL_CTL_MOD,
[INFO] [stdout]   |     ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `EPOLLONESHOT`, `EPOLLOUT`
[INFO] [stdout]   --> src/gpio/epoll.rs:12:57
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub use libc::{epoll_event, EPOLLERR, EPOLLET, EPOLLIN, EPOLLONESHOT, EPOLLOUT, EPOLLPRI};
[INFO] [stdout]    |                                                         ^^^^^^^^^^^^  ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/bcm.rs:11:12
[INFO] [stdout]    |
[INFO] [stdout] 11 | use libc::{self, c_void, off_t, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/gpiomem/rp1.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, c_void, size_t, MAP_FAILED, MAP_SHARED, O_SYNC, PROT_READ, PROT_WRITE};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v1.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_ulong, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/gpio/ioctl/v2.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | use libc::{self, c_int, c_void, ENOENT};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]   --> src/gpio/soft_pwm.rs:10:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | use libc::{self, sched_param, timespec, CLOCK_MONOTONIC, PR_SET_TIMERSLACK, SCHED_RR};
[INFO] [stdout]    |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/i2c/ioctl.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | use libc::{self, c_int, c_ulong, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `libc` is imported redundantly
[INFO] [stdout]  --> src/spi/ioctl.rs:7:12
[INFO] [stdout]   |
[INFO] [stdout] 7 | use libc::{self, c_int, ioctl};
[INFO] [stdout]   |            ^^^^ the item `libc` is already defined by prelude
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `simple_signal` is imported redundantly
[INFO] [stdout]   --> examples/gpio_blinkled_signals.rs:15:21
[INFO] [stdout]    |
[INFO] [stdout] 15 | use simple_signal::{self, Signal};
[INFO] [stdout]    |                     ^^^^ the item `simple_signal` is already defined by prelude
[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] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 3.09s
[INFO] running `Command { std: "docker" "inspect" "5edd4cf4105633221e7af68bf18cf0e9f9b732c5b60ec2026d8ce4775aef2f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5edd4cf4105633221e7af68bf18cf0e9f9b732c5b60ec2026d8ce4775aef2f6e", kill_on_drop: false }`
[INFO] [stdout] 5edd4cf4105633221e7af68bf18cf0e9f9b732c5b60ec2026d8ce4775aef2f6e