[INFO] cloning repository https://github.com/codexmicrosystems/neutron
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/codexmicrosystems/neutron" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodexmicrosystems%2Fneutron", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodexmicrosystems%2Fneutron'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d1f72a53ca6a0655bdbcd8e85a6b538c661c1325
[INFO] checking codexmicrosystems/neutron against master#36b21637e93b038453924d3c66821089e71d8baa for pr-143164
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcodexmicrosystems%2Fneutron" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/codexmicrosystems/neutron
[INFO] finished tweaking git repo https://github.com/codexmicrosystems/neutron
[INFO] tweaked toml for git repo https://github.com/codexmicrosystems/neutron written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/codexmicrosystems/neutron on toolchain 36b21637e93b038453924d3c66821089e71d8baa
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/codexmicrosystems/neutron 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" "+36b21637e93b038453924d3c66821089e71d8baa" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7a5b68ef6557c49eb83ea1911ea8a6fee82580ba7824fdb11ba561837b986ad
[INFO] running `Command { std: "docker" "start" "-a" "a7a5b68ef6557c49eb83ea1911ea8a6fee82580ba7824fdb11ba561837b986ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7a5b68ef6557c49eb83ea1911ea8a6fee82580ba7824fdb11ba561837b986ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7a5b68ef6557c49eb83ea1911ea8a6fee82580ba7824fdb11ba561837b986ad", kill_on_drop: false }`
[INFO] [stdout] a7a5b68ef6557c49eb83ea1911ea8a6fee82580ba7824fdb11ba561837b986ad
[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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+36b21637e93b038453924d3c66821089e71d8baa" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60dc0e64953517070368d95b3115d093946f8c5b1b9a321e0160a877fbd51109
[INFO] running `Command { std: "docker" "start" "-a" "60dc0e64953517070368d95b3115d093946f8c5b1b9a321e0160a877fbd51109", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.70
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]    Compiling pkg-config v0.3.27
[INFO] [stderr]    Compiling thiserror v1.0.51
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]     Checking scopeguard v1.2.0
[INFO] [stderr]     Checking bitflags v2.4.1
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]    Compiling quote v1.0.33
[INFO] [stderr]    Compiling syn v2.0.41
[INFO] [stderr]     Checking nix v0.26.4
[INFO] [stderr]     Checking libudev v0.3.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.51
[INFO] [stderr]     Checking unescaper v0.1.3
[INFO] [stderr]     Checking serialport v4.3.0
[INFO] [stderr]     Checking neutron v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `serial_path` and `serial_connection_config` are never read
[INFO] [stdout]   --> src/connection/serial_connection.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct SerialConnection {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 60 |     serial_port: Box<dyn SerialPort>,
[INFO] [stdout] 61 |     serial_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 62 |     serial_connection_config: SerialConnectionConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `serial_path` and `serial_connection_config` are never read
[INFO] [stdout]   --> src/connection/serial_connection.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | pub struct SerialConnection {
[INFO] [stdout]    |            ---------------- fields in this struct
[INFO] [stdout] 60 |     serial_port: Box<dyn SerialPort>,
[INFO] [stdout] 61 |     serial_path: String,
[INFO] [stdout]    |     ^^^^^^^^^^^
[INFO] [stdout] 62 |     serial_connection_config: SerialConnectionConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.01s
[INFO] running `Command { std: "docker" "inspect" "60dc0e64953517070368d95b3115d093946f8c5b1b9a321e0160a877fbd51109", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60dc0e64953517070368d95b3115d093946f8c5b1b9a321e0160a877fbd51109", kill_on_drop: false }`
[INFO] [stdout] 60dc0e64953517070368d95b3115d093946f8c5b1b9a321e0160a877fbd51109