[INFO] fetching crate i2cdev 0.6.0...
[INFO] checking i2cdev-0.6.0 against master#af4a5a13a15fa0c60e06321077ef452f769b42fd for pr-122960-2
[INFO] extracting crate i2cdev 0.6.0 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate i2cdev 0.6.0 on toolchain af4a5a13a15fa0c60e06321077ef452f769b42fd
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate i2cdev 0.6.0
[INFO] finished tweaking crates.io crate i2cdev 0.6.0
[INFO] tweaked toml for crates.io crate i2cdev 0.6.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate i2cdev 0.6.0 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" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded unicode-xid v0.2.2
[INFO] [stderr]   Downloaded proc-macro2 v1.0.32
[INFO] [stderr]   Downloaded docopt v1.1.1
[INFO] [stderr]   Downloaded quote v1.0.10
[INFO] [stderr]   Downloaded bitflags v2.3.3
[INFO] [stderr]   Downloaded serde_derive v1.0.130
[INFO] [stderr]   Downloaded serde v1.0.130
[INFO] [stderr]   Downloaded regex-syntax v0.6.25
[INFO] [stderr]   Downloaded regex v1.5.4
[INFO] [stderr]   Downloaded syn v1.0.81
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ff7ad5f59af6d91733d1c2187cdd9e85baa5297f95b13b7399aafe375a31f116
[INFO] running `Command { std: "docker" "start" "-a" "ff7ad5f59af6d91733d1c2187cdd9e85baa5297f95b13b7399aafe375a31f116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ff7ad5f59af6d91733d1c2187cdd9e85baa5297f95b13b7399aafe375a31f116", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff7ad5f59af6d91733d1c2187cdd9e85baa5297f95b13b7399aafe375a31f116", kill_on_drop: false }`
[INFO] [stdout] ff7ad5f59af6d91733d1c2187cdd9e85baa5297f95b13b7399aafe375a31f116
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+af4a5a13a15fa0c60e06321077ef452f769b42fd" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f4f3f927680135b4b90334e1303c2862be6d7696c749a9e848bfa46ed4dc642b
[INFO] running `Command { std: "docker" "start" "-a" "f4f3f927680135b4b90334e1303c2862be6d7696c749a9e848bfa46ed4dc642b", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[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 regex-syntax v0.6.25
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]     Checking bitflags v2.3.3
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]     Checking nix v0.26.2
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking i2cdev v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]    --> src/ffi.rs:13:5
[INFO] [stdout]     |
[INFO] [stdout] 13  | use nix;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | extern crate nix;
[INFO] [stdout]     | ----------------- the item `nix` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]    --> src/linux.rs:11:5
[INFO] [stdout]     |
[INFO] [stdout] 11  | use nix;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | extern crate nix;
[INFO] [stdout]     | ----------------- the item `nix` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking docopt v1.1.1
[INFO] [stdout] warning: the item `Error` is imported redundantly
[INFO] [stdout]    --> examples/sensors.rs:227:13
[INFO] [stdout]     |
[INFO] [stdout] 224 |         use super::*;
[INFO] [stdout]     |             -------- the item `Error` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 227 |         use std::error::Error;
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]    --> src/ffi.rs:13:5
[INFO] [stdout]     |
[INFO] [stdout] 13  | use nix;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | extern crate nix;
[INFO] [stdout]     | ----------------- the item `nix` is already imported here
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `nix` is imported redundantly
[INFO] [stdout]    --> src/linux.rs:11:5
[INFO] [stdout]     |
[INFO] [stdout] 11  | use nix;
[INFO] [stdout]     |     ^^^
[INFO] [stdout]     |
[INFO] [stdout]    ::: src/lib.rs:107:1
[INFO] [stdout]     |
[INFO] [stdout] 107 | extern crate nix;
[INFO] [stdout]     | ----------------- the item `nix` is already imported here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[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] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 13.50s
[INFO] running `Command { std: "docker" "inspect" "f4f3f927680135b4b90334e1303c2862be6d7696c749a9e848bfa46ed4dc642b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4f3f927680135b4b90334e1303c2862be6d7696c749a9e848bfa46ed4dc642b", kill_on_drop: false }`
[INFO] [stdout] f4f3f927680135b4b90334e1303c2862be6d7696c749a9e848bfa46ed4dc642b