[INFO] cloning repository https://github.com/alelouis/nrf-play
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/alelouis/nrf-play" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelouis%2Fnrf-play", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelouis%2Fnrf-play'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1b1111b65790d503b20315450045f9095ec98a3b
[INFO] testing alelouis/nrf-play against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelouis%2Fnrf-play" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/alelouis/nrf-play
[INFO] finished tweaking git repo https://github.com/alelouis/nrf-play
[INFO] tweaked toml for git repo https://github.com/alelouis/nrf-play written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alelouis/nrf-play on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alelouis/nrf-play 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to highest compatible versions
[INFO] [stderr]       Adding atomic-polyfill v1.0.3
[INFO] [stderr]       Adding byteorder v1.5.0
[INFO] [stderr]       Adding critical-section v1.2.0
[INFO] [stderr]       Adding hash32 v0.2.1
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.3)
[INFO] [stderr]       Adding lock_api v0.4.14
[INFO] [stderr]       Adding mcp4725 v0.4.3
[INFO] [stderr]       Adding rustc_version v0.4.1
[INFO] [stderr]       Adding scopeguard v1.2.0
[INFO] [stderr]       Adding semver v1.0.28
[INFO] [stderr]       Adding spin v0.9.9
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] testing alelouis/nrf-play against 1.99.0-beta.1+cargoflags=--release for beta-release-1.99-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Falelouis%2Fnrf-play" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-4-tc2/source/.cargo/config
[INFO] started tweaking git repo https://github.com/alelouis/nrf-play
[INFO] finished tweaking git repo https://github.com/alelouis/nrf-play
[INFO] tweaked toml for git repo https://github.com/alelouis/nrf-play written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/alelouis/nrf-play on toolchain 1.99.0-beta.1
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/alelouis/nrf-play 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" "+1.99.0-beta.1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 11 packages to highest compatible versions
[INFO] [stderr]       Adding atomic-polyfill v1.0.3
[INFO] [stderr]       Adding byteorder v1.5.0
[INFO] [stderr]       Adding critical-section v1.2.0
[INFO] [stderr]       Adding hash32 v0.2.1
[INFO] [stderr]       Adding heapless v0.7.17 (available: v0.9.3)
[INFO] [stderr]       Adding lock_api v0.4.14
[INFO] [stderr]       Adding mcp4725 v0.4.3
[INFO] [stderr]       Adding rustc_version v0.4.1
[INFO] [stderr]       Adding scopeguard v1.2.0
[INFO] [stderr]       Adding semver v1.0.28
[INFO] [stderr]       Adding spin v0.9.9
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vcell v0.1.3
[INFO] [stderr]   Downloaded volatile-register v0.2.1
[INFO] [stderr]   Downloaded rtt-target v0.3.1
[INFO] [stderr]   Downloaded ufmt-write v0.1.0
[INFO] [stderr]   Downloaded cortex-m v0.7.5
[INFO] [stderr]   Downloaded cortex-m-rt-macros v0.7.0
[INFO] [stderr]   Downloaded usb-device v0.2.8
[INFO] [stderr]   Downloaded critical-section v0.2.7
[INFO] [stderr]   Downloaded embedded-storage v0.2.0
[INFO] [stderr]   Downloaded nrf52833-hal v0.14.1
[INFO] [stderr]   Downloaded rustc_version v0.2.3
[INFO] [stderr]   Downloaded hash32 v0.2.1
[INFO] [stderr]   Downloaded nb v1.0.0
[INFO] [stderr]   Downloaded microbit-v2 v0.12.0
[INFO] [stderr]   Downloaded microbit-common v0.12.0
[INFO] [stderr]   Downloaded riscv-target v0.1.2
[INFO] [stderr]   Downloaded embedded-dma v0.1.2
[INFO] [stderr]   Downloaded atomic-polyfill v1.0.3
[INFO] [stderr]   Downloaded bare-metal v0.2.5
[INFO] [stderr]   Downloaded semver-parser v0.7.0
[INFO] [stderr]   Downloaded quote v1.0.20
[INFO] [stderr]   Downloaded tiny-led-matrix v1.0.2
[INFO] [stderr]   Downloaded mcp4725 v0.4.3
[INFO] [stderr]   Downloaded bitfield v0.13.2
[INFO] [stderr]   Downloaded panic-rtt-target v0.1.2
[INFO] [stderr]   Downloaded az v1.2.0
[INFO] [stderr]   Downloaded semver v0.9.0
[INFO] [stderr]   Downloaded bare-metal v1.0.0
[INFO] [stderr]   Downloaded cortex-m-rt v0.7.1
[INFO] [stderr]   Downloaded unicode-ident v1.0.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.40
[INFO] [stderr]   Downloaded spin v0.9.9
[INFO] [stderr]   Downloaded nrf-usbd v0.1.1
[INFO] [stderr]   Downloaded half v1.8.2
[INFO] [stderr]   Downloaded nrf-hal-common v0.14.1
[INFO] [stderr]   Downloaded heapless v0.7.17
[INFO] [stderr]   Downloaded riscv v0.7.0
[INFO] [stderr]   Downloaded fixed v1.15.0
[INFO] [stderr]   Downloaded syn v1.0.98
[INFO] [stderr]   Downloaded regex v1.5.6
[INFO] [stderr]   Downloaded regex-syntax v0.6.26
[INFO] [stderr]   Downloaded nrf52833-pac v0.10.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:8683fc1fc2eb5c9ac98e0d076ab094b2ffac7f99da555d2b6a2e27f346de2ec7" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a
[INFO] running `Command { std: "docker" "start" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-w" "/opt/rustwide/workdir" "--user" "0:0" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a" "/opt/rustwide/cargo-home/bin/cargo" "+1.99.0-beta.1" "build" "--frozen" "--message-format=json" "--release", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling nb v1.0.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.40
[INFO] [stderr]    Compiling void v1.0.2
[INFO] [stderr]    Compiling unicode-ident v1.0.1
[INFO] [stderr]    Compiling quote v1.0.20
[INFO] [stderr]    Compiling cortex-m v0.7.5
[INFO] [stderr]    Compiling vcell v0.1.3
[INFO] [stderr]    Compiling semver v1.0.28
[INFO] [stderr]    Compiling nb v0.1.3
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling embedded-hal v0.2.7
[INFO] [stderr]    Compiling volatile-register v0.2.1
[INFO] [stderr]    Compiling bitfield v0.13.2
[INFO] [stderr]    Compiling lock_api v0.4.14
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling cortex-m-rt v0.7.1
[INFO] [stderr]    Compiling rustc_version v0.4.1
[INFO] [stderr]    Compiling ufmt-write v0.1.0
[INFO] [stderr]    Compiling byteorder v1.5.0
[INFO] [stderr]    Compiling stable_deref_trait v1.2.0
[INFO] [stderr]    Compiling mcp4725 v0.4.3
[INFO] [stderr]    Compiling spin v0.9.9
[INFO] [stderr]    Compiling hash32 v0.2.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling heapless v0.7.17
[INFO] [stderr]    Compiling bare-metal v0.2.5
[INFO] [stderr]    Compiling rtt-target v0.3.1
[INFO] [stderr]    Compiling panic-rtt-target v0.1.2
[INFO] [stderr]    Compiling cortex-m-rt-macros v0.7.0
[INFO] [stderr]    Compiling nrf-play v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/gpio_output.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use microbit::board::Board;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_vario_blink.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_output.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::gpio::Level;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_output.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use microbit::hal::prelude::OutputPin;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/gpio_vario_blink.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use microbit::hal::pac::Peripherals;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_vario_blink.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::{Saadc, Timer, saadc::SaadcConfig, gpio, gpio::Level};
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `microbit::hal::pac::Peripherals`, `microbit::hal::Saadc`, `microbit::hal::Timer`, `microbit::hal::saadc::SaadcConfig`, `microbit::hal::gpio`, `microbit::hal::gpio::Level`
[INFO] [stdout]   --> src/bin/gpio_vario_blink.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | use microbit::hal::pac::Peripherals;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | use microbit::hal::{Saadc, Timer, saadc::SaadcConfig, gpio, gpio::Level};
[INFO] [stdout]    |                     ^^^^^  ^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^  ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rprintln`
[INFO] [stdout]  --> src/bin/gpio_vario_blink.rs:6:18
[INFO] [stdout]   |
[INFO] [stdout] 6 | use rtt_target::{rprintln, rtt_init_print};
[INFO] [stdout]   |                  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp_low.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrf-play` (bin "gpio_vario_blink") due to 5 previous errors; 1 warning emitted
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `nrf-play` (bin "gpio_output") due to 4 previous errors
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_blink.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp_low.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let board = microbit::Board::take().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_read_analog.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/gpio_read_analog.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use microbit::hal::pac::Peripherals;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_read_analog.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::{Saadc, saadc::SaadcConfig, gpio};
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `microbit::hal::pac::Peripherals`, `microbit::hal::Saadc`, `microbit::hal::saadc::SaadcConfig`, `microbit::hal::gpio`
[INFO] [stdout]   --> src/bin/gpio_read_analog.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | use microbit::hal::pac::Peripherals;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | use microbit::hal::{Saadc, saadc::SaadcConfig, gpio};
[INFO] [stdout]    |                     ^^^^^  ^^^^^^^^^^^^^^^^^^  ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `twim` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp_low.rs:32:21
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut i2c = { twim::Twim::new(board.TWIM0, board.i2c_external.into(), FREQUENCY_A::K100) };
[INFO] [stdout]    |                     ^^^^ use of unresolved module or unlinked crate `twim`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `twim`, use `cargo add twim` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/gpio_blink.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use microbit::board::Board;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_blink.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::gpio::Level;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_blink.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use microbit::hal::prelude::OutputPin;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_blink.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 | use microbit::hal::Timer;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `microbit::board::Board`, `microbit::hal::gpio::Level`, `microbit::hal::prelude::OutputPin`, `microbit::hal::Timer`
[INFO] [stdout]   --> src/bin/gpio_blink.rs:9:5
[INFO] [stdout]    |
[INFO] [stdout]  9 | use microbit::board::Board;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | use microbit::hal::gpio::Level;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 11 | use microbit::hal::prelude::OutputPin;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 12 | use microbit::hal::Timer;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_analog_to_uart.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 | use microbit::{
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/serial_setup.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use microbit::hal::uarte::{Error, Instance, Uarte, UarteRx, UarteTx};
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/gpio_analog_to_uart.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use microbit::hal::{Saadc, Timer};
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/gpio_analog_to_uart.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use microbit::hal::saadc::SaadcConfig;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_analog_to_uart.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::pac::Peripherals;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_analog_to_uart.rs:11:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | use microbit::hal::gpio;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/gpio_analog_to_uart.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use microbit::hal::gpio::{p0, p1, Floating, Input, Output, Pin, PushPull, Level};
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `mcp4725::*`
[INFO] [stdout]  --> src/bin/i2c_mcp_low.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use mcp4725::*;
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `microbit::hal::Saadc`, `microbit::hal::Timer`, `microbit::hal::saadc::SaadcConfig`, `microbit::hal::pac::Peripherals`, `microbit::hal::gpio`, `microbit::hal::uarte`, `microbit::hal::uarte::Baudrate`, `microbit::hal::uarte::Parity`, `microbit::hal::gpio::p0`, `microbit::hal::gpio::p1`, `microbit::hal::gpio::Floating`, `microbit::hal::gpio::Input`, `microbit::hal::gpio::Output`, `microbit::hal::gpio::Pin`, `microbit::hal::gpio::PushPull`, `microbit::hal::gpio::Level`
[INFO] [stdout]   --> src/bin/gpio_analog_to_uart.rs:8:21
[INFO] [stdout]    |
[INFO] [stdout]  8 | use microbit::hal::{Saadc, Timer};
[INFO] [stdout]    |                     ^^^^^  ^^^^^
[INFO] [stdout]  9 | use microbit::hal::saadc::SaadcConfig;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 10 | use microbit::hal::pac::Peripherals;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 11 | use microbit::hal::gpio;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     hal::uarte,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 18 |     hal::uarte::{Baudrate, Parity},
[INFO] [stdout]    |                  ^^^^^^^^  ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 | use microbit::hal::gpio::{p0, p1, Floating, Input, Output, Pin, PushPull, Level};
[INFO] [stdout]    |                           ^^  ^^  ^^^^^^^^  ^^^^^  ^^^^^^  ^^^  ^^^^^^^^  ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `FREQUENCY_A` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp_low.rs:32:77
[INFO] [stdout]    |
[INFO] [stdout] 32 |     let mut i2c = { twim::Twim::new(board.TWIM0, board.i2c_external.into(), FREQUENCY_A::K100) };
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^ use of undeclared type `FREQUENCY_A`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/bin/i2c_mcp_low.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg(feature = "v2")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v2` feature
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pac::twim0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrf-play` (bin "i2c_mcp_low") due to 5 previous errors; 1 warning emitted
[INFO] [stderr] error: could not compile `nrf-play` (bin "gpio_blink") due to 7 previous errors
[INFO] [stderr] error: could not compile `nrf-play` (bin "gpio_read_analog") due to 5 previous errors
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::prelude::*;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrf-play` (bin "gpio_analog_to_uart") due to 9 previous errors
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/pwm.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 9 | use microbit::hal::prelude::*;
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]  --> src/bin/pwm.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use microbit::hal::{pac::Peripherals, Timer, gpio, pwm, gpio::Level};
[INFO] [stdout]   |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/pwm.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use microbit::hal::time::Hertz;
[INFO] [stdout]    |     ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved imports `microbit::hal::pac::Peripherals`, `microbit::hal::Timer`, `microbit::hal::gpio`, `microbit::hal::pwm`, `microbit::hal::gpio::Level`, `microbit::hal::time::Hertz`
[INFO] [stdout]   --> src/bin/pwm.rs:8:21
[INFO] [stdout]    |
[INFO] [stdout]  8 | use microbit::hal::{pac::Peripherals, Timer, gpio, pwm, gpio::Level};
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^  ^^^^^  ^^^^  ^^^  ^^^^^^^^^^^
[INFO] [stdout]  9 | use microbit::hal::prelude::*;
[INFO] [stdout] 10 | use microbit::hal::time::Hertz;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrf-play` (bin "pwm") due to 5 previous errors
[INFO] [stdout] error[E0433]: cannot find module or crate `microbit` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp.rs:21:17
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let board = microbit::Board::take().unwrap();
[INFO] [stdout]    |                 ^^^^^^^^ use of unresolved module or unlinked crate `microbit`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `microbit`, use `cargo add microbit` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find module or crate `twim` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp.rs:23:21
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut i2c = { twim::Twim::new(board.TWIM0, board.i2c_external.into(), FREQUENCY_A::K100) };
[INFO] [stdout]    |                     ^^^^ use of unresolved module or unlinked crate `twim`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `twim`, use `cargo add twim` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unwinding panics are not supported without std
[INFO] [stdout]   |
[INFO] [stdout]   = help: using nightly cargo, use -Zbuild-std with panic="abort" to avoid unwinding
[INFO] [stdout]   = note: since the core library is usually precompiled with panic="unwind", rebuilding your crate with panic="abort" may not be enough to fix the problem
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: cannot find type `FREQUENCY_A` in this scope
[INFO] [stdout]   --> src/bin/i2c_mcp.rs:23:77
[INFO] [stdout]    |
[INFO] [stdout] 23 |     let mut i2c = { twim::Twim::new(board.TWIM0, board.i2c_external.into(), FREQUENCY_A::K100) };
[INFO] [stdout]    |                                                                             ^^^^^^^^^^^ use of undeclared type `FREQUENCY_A`
[INFO] [stdout]    |
[INFO] [stdout] note: found an item that was configured out
[INFO] [stdout]   --> src/bin/i2c_mcp.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[cfg(feature = "v2")]
[INFO] [stdout]    |       -------------- the item is gated behind the `v2` feature
[INFO] [stdout] ...
[INFO] [stdout] 15 |     pac::twim0::frequency::FREQUENCY_A,
[INFO] [stdout]    |                            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `nrf-play` (bin "i2c_mcp") due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a", kill_on_drop: false }`
[INFO] [stdout] ca6e6b0dc1da91e6bd00a9fee671baf9e976b2941c1c5baf883a76a24c9b395a
