[INFO] fetching crate tunio 0.3.0...
[INFO] checking tunio-0.3.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate tunio 0.3.0 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate tunio 0.3.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate tunio 0.3.0
[INFO] finished tweaking crates.io crate tunio 0.3.0
[INFO] tweaked toml for crates.io crate tunio 0.3.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate tunio 0.3.0 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" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded netlink-packet-utils v0.5.1
[INFO] [stderr]   Downloaded netlink-sys v0.8.3
[INFO] [stderr]   Downloaded ipnetwork v0.19.0
[INFO] [stderr]   Downloaded widestring v1.0.1
[INFO] [stderr]   Downloaded netlink-packet-route v0.11.0
[INFO] [stderr]   Downloaded etherparse v0.10.1
[INFO] [stderr]   Downloaded windows_aarch64_msvc v0.38.0
[INFO] [stderr]   Downloaded windows_i686_gnu v0.38.0
[INFO] [stderr]   Downloaded windows_i686_msvc v0.38.0
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.38.0
[INFO] [stderr]   Downloaded windows_x86_64_gnu v0.38.0
[INFO] [stderr]   Downloaded windows v0.38.0
[INFO] [stderr]   Downloaded wintun-sys v0.1.0
[INFO] [stderr]   Downloaded netconfig v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a496924be688b448496067da12f614862a996351217e66ea4b4e407f572bfc0a
[INFO] running `Command { std: "docker" "start" "-a" "a496924be688b448496067da12f614862a996351217e66ea4b4e407f572bfc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a496924be688b448496067da12f614862a996351217e66ea4b4e407f572bfc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a496924be688b448496067da12f614862a996351217e66ea4b4e407f572bfc0a", kill_on_drop: false }`
[INFO] [stdout] a496924be688b448496067da12f614862a996351217e66ea4b4e407f572bfc0a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b526b21e18a6677ed06ebcaec89050b29870d2b59e86d171b13f3855712de028
[INFO] running `Command { std: "docker" "start" "-a" "b526b21e18a6677ed06ebcaec89050b29870d2b59e86d171b13f3855712de028", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.98
[INFO] [stderr]    Compiling libc v0.2.126
[INFO] [stderr]    Compiling anyhow v1.0.58
[INFO] [stderr]    Compiling paste v1.0.7
[INFO] [stderr]    Compiling serde v1.0.137
[INFO] [stderr]    Compiling io-lifetimes v0.7.2
[INFO] [stderr]     Checking regex-syntax v0.6.26
[INFO] [stderr]     Checking etherparse v0.10.1
[INFO] [stderr]     Checking regex v1.5.6
[INFO] [stderr]     Checking netlink-sys v0.8.3
[INFO] [stderr]     Checking nix v0.24.1
[INFO] [stderr]     Checking num_cpus v1.13.1
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking mio v0.8.4
[INFO] [stderr]     Checking signal-hook-registry v1.4.0
[INFO] [stderr]     Checking env_logger v0.9.0
[INFO] [stderr]     Checking ipnetwork v0.19.0
[INFO] [stderr]    Compiling darling_core v0.14.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.31
[INFO] [stderr]    Compiling delegate v0.7.0
[INFO] [stderr]    Compiling tokio-macros v1.8.0
[INFO] [stderr]     Checking tokio v1.19.2
[INFO] [stderr]    Compiling darling_macro v0.14.1
[INFO] [stderr]     Checking thiserror v1.0.31
[INFO] [stderr]     Checking netlink-packet-utils v0.5.1
[INFO] [stderr]     Checking netlink-packet-core v0.4.2
[INFO] [stderr]    Compiling darling v0.14.1
[INFO] [stderr]     Checking netlink-packet-route v0.11.0
[INFO] [stderr]    Compiling derive_builder_core v0.11.2
[INFO] [stderr]    Compiling derive_builder_macro v0.11.2
[INFO] [stderr]     Checking netconfig v0.2.0
[INFO] [stderr]     Checking derive_builder v0.11.2
[INFO] [stderr]     Checking tunio v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `AsyncReadExt`
[INFO] [stdout]  --> examples/simple.rs:4:17
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                 ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `AsyncWriteExt`
[INFO] [stdout]  --> examples/simple.rs:4:31
[INFO] [stdout]   |
[INFO] [stdout] 4 | use tokio::io::{AsyncReadExt, AsyncWriteExt};
[INFO] [stdout]   |                               ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `buf`
[INFO] [stdout]   --> examples/simple.rs:45:13
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut buf = vec![0u8; 4096];
[INFO] [stdout]    |             ^^^ help: if this is intentional, prefix it with an underscore: `_buf`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple.rs:21:9
[INFO] [stdout]    |
[INFO] [stdout] 21 |     let mut interface = DefaultInterface::new_up(&mut driver, interface_config).unwrap();
[INFO] [stdout]    |         ----^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> examples/simple.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |     let mut buf = vec![0u8; 4096];
[INFO] [stdout]    |         ----^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> examples/simple.rs:52:5
[INFO] [stdout]    |
[INFO] [stdout] 52 |     tokio::signal::ctrl_c().await;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 52 |     let _ = tokio::signal::ctrl_c().await;
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.04s
[INFO] running `Command { std: "docker" "inspect" "b526b21e18a6677ed06ebcaec89050b29870d2b59e86d171b13f3855712de028", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b526b21e18a6677ed06ebcaec89050b29870d2b59e86d171b13f3855712de028", kill_on_drop: false }`
[INFO] [stdout] b526b21e18a6677ed06ebcaec89050b29870d2b59e86d171b13f3855712de028
