[INFO] cloning repository https://github.com/mmalecki/ad569x-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/mmalecki/ad569x-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmalecki%2Fad569x-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmalecki%2Fad569x-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b6e88b9c497efbbb4fc4ea4623664de80fa92f77
[INFO] checking mmalecki/ad569x-rs against try#f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2 for pr-156992
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmmalecki%2Fad569x-rs" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/mmalecki/ad569x-rs
[INFO] finished tweaking git repo https://github.com/mmalecki/ad569x-rs
[INFO] tweaked toml for git repo https://github.com/mmalecki/ad569x-rs written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/mmalecki/ad569x-rs on toolchain f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/mmalecki/ad569x-rs 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" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 19f843bd0bd05d4a691c7fcf5af5622764eaefcbd4fcb3e58f12e5b5db0e12df
[INFO] running `Command { std: "docker" "start" "-a" "19f843bd0bd05d4a691c7fcf5af5622764eaefcbd4fcb3e58f12e5b5db0e12df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "19f843bd0bd05d4a691c7fcf5af5622764eaefcbd4fcb3e58f12e5b5db0e12df", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "19f843bd0bd05d4a691c7fcf5af5622764eaefcbd4fcb3e58f12e5b5db0e12df", kill_on_drop: false }`
[INFO] [stdout] 19f843bd0bd05d4a691c7fcf5af5622764eaefcbd4fcb3e58f12e5b5db0e12df
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+f16624c7fb52ccf15cd304a9728caf1ef4b9c0d2" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 299bdc3c6127de30dbb6f6edfc33ed884957c15a66b83bf377e31deb3a6ae088
[INFO] running `Command { std: "docker" "start" "-a" "299bdc3c6127de30dbb6f6edfc33ed884957c15a66b83bf377e31deb3a6ae088", kill_on_drop: false }`
[INFO] [stderr]     Checking ad569x v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/lib.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NoOp`, `WriteInputRegister`, `UpdateDacRegister`, and `WriteControlRegister` are never constructed
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum Command {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 25 |     NoOp = 0b0000,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     WriteInputRegister = 0b0001,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     UpdateDacRegister = 0b0010,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     WriteInputRegisterAndUpdateDac = 0b0011,
[INFO] [stdout] 29 |     WriteControlRegister = 0b0100,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperationMode` is never used
[INFO] [stdout]   --> src/lib.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum OperationMode {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Read`
[INFO] [stdout]  --> src/lib.rs:3:15
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{Read, Write};
[INFO] [stdout]   |               ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Write`
[INFO] [stdout]  --> src/lib.rs:3:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::io::{Read, Write};
[INFO] [stdout]   |                     ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `NoOp`, `WriteInputRegister`, `UpdateDacRegister`, and `WriteControlRegister` are never constructed
[INFO] [stdout]   --> src/lib.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | enum Command {
[INFO] [stdout]    |      ------- variants in this enum
[INFO] [stdout] 25 |     NoOp = 0b0000,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 26 |     WriteInputRegister = 0b0001,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 27 |     UpdateDacRegister = 0b0010,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 28 |     WriteInputRegisterAndUpdateDac = 0b0011,
[INFO] [stdout] 29 |     WriteControlRegister = 0b0100,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `OperationMode` is never used
[INFO] [stdout]   --> src/lib.rs:35:6
[INFO] [stdout]    |
[INFO] [stdout] 35 | enum OperationMode {
[INFO] [stdout]    |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "299bdc3c6127de30dbb6f6edfc33ed884957c15a66b83bf377e31deb3a6ae088", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "299bdc3c6127de30dbb6f6edfc33ed884957c15a66b83bf377e31deb3a6ae088", kill_on_drop: false }`
[INFO] [stdout] 299bdc3c6127de30dbb6f6edfc33ed884957c15a66b83bf377e31deb3a6ae088