[INFO] fetching crate i2cdev 0.6.1...
[INFO] checking i2cdev-0.6.1 against master#1f12b9b0fdbe735968ac002792a720f0ba4faca6 for crater-rollup-uwu
[INFO] extracting crate i2cdev 0.6.1 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate i2cdev 0.6.1 on toolchain 1f12b9b0fdbe735968ac002792a720f0ba4faca6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i2cdev 0.6.1
[INFO] finished tweaking crates.io crate i2cdev 0.6.1
[INFO] tweaked toml for crates.io crate i2cdev 0.6.1 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate i2cdev 0.6.1 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" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded nix v0.26.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 36c65c11cd42345532efecbcfd55b76320312ce6e672ed19e5609f92c03c01c0
[INFO] running `Command { std: "docker" "start" "-a" "36c65c11cd42345532efecbcfd55b76320312ce6e672ed19e5609f92c03c01c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "36c65c11cd42345532efecbcfd55b76320312ce6e672ed19e5609f92c03c01c0", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36c65c11cd42345532efecbcfd55b76320312ce6e672ed19e5609f92c03c01c0", kill_on_drop: false }`
[INFO] [stdout] 36c65c11cd42345532efecbcfd55b76320312ce6e672ed19e5609f92c03c01c0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:923055f121b5182466d55868a8b05e67af8ba4a3a3f6bad814e953ca3cd3ac2a" "/opt/rustwide/cargo-home/bin/cargo" "+1f12b9b0fdbe735968ac002792a720f0ba4faca6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a4f615ea41b7b0338fb2668efc4680fa2990c9d5ee9f1fcd8ce04a29a9de83f1
[INFO] running `Command { std: "docker" "start" "-a" "a4f615ea41b7b0338fb2668efc4680fa2990c9d5ee9f1fcd8ce04a29a9de83f1", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling libc v0.2.147
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking i2cdev v0.6.1 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stdout] warning: multiple fields are never read
[INFO] [stdout]   --> examples/nunchuck.rs:61:13
[INFO] [stdout]    |
[INFO] [stdout] 60 |     pub struct NunchuckReading {
[INFO] [stdout]    |                --------------- fields in this struct
[INFO] [stdout] 61 |         pub joystick_x: u8,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 62 |         pub joystick_y: u8,
[INFO] [stdout]    |             ^^^^^^^^^^
[INFO] [stdout] 63 |         pub accel_x: u16, // 10-bit
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout] 64 |         pub accel_y: u16, // 10-bit
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout] 65 |         pub accel_z: u16, // 10-bit
[INFO] [stdout]    |             ^^^^^^^
[INFO] [stdout] 66 |         pub c_button_pressed: bool,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout] 67 |         pub z_button_pressed: bool,
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `NunchuckReading` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.06s
[INFO] running `Command { std: "docker" "inspect" "a4f615ea41b7b0338fb2668efc4680fa2990c9d5ee9f1fcd8ce04a29a9de83f1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a4f615ea41b7b0338fb2668efc4680fa2990c9d5ee9f1fcd8ce04a29a9de83f1", kill_on_drop: false }`
[INFO] [stdout] a4f615ea41b7b0338fb2668efc4680fa2990c9d5ee9f1fcd8ce04a29a9de83f1