[INFO] fetching crate mac_utun 0.6.0...
[INFO] testing mac_utun-0.6.0 against 1.90.0 for beta-1.91-3
[INFO] extracting crate mac_utun 0.6.0 into /workspace/builds/worker-1-tc1/source
[INFO] started tweaking crates.io crate mac_utun 0.6.0
[INFO] finished tweaking crates.io crate mac_utun 0.6.0
[INFO] tweaked toml for crates.io crate mac_utun 0.6.0 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate mac_utun 0.6.0 on toolchain 1.90.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 3 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.90.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de7fc5310b7c04237660a5e2a387b5990f0befdb4dadd9cca387b2930f91f28d
[INFO] running `Command { std: "docker" "start" "-a" "de7fc5310b7c04237660a5e2a387b5990f0befdb4dadd9cca387b2930f91f28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de7fc5310b7c04237660a5e2a387b5990f0befdb4dadd9cca387b2930f91f28d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de7fc5310b7c04237660a5e2a387b5990f0befdb4dadd9cca387b2930f91f28d", kill_on_drop: false }`
[INFO] [stdout] de7fc5310b7c04237660a5e2a387b5990f0befdb4dadd9cca387b2930f91f28d
[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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+1.90.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ad70b6c8f8cde6da2ebd61341f47d4d716341ab5af35d6c7c7e3a4463bfefe85
[INFO] running `Command { std: "docker" "start" "-a" "ad70b6c8f8cde6da2ebd61341f47d4d716341ab5af35d6c7c7e3a4463bfefe85", kill_on_drop: false }`
[INFO] [stderr]    Compiling mac_utun v0.6.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Error`
[INFO] [stdout]   --> src/lib.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Err(Error::from(ErrorKind::NotFound))
[INFO] [stdout]    |         ^^^^^ use of undeclared type `Error`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing one of these items
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::error::Error;
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::fmt::Error;
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::io::Error;
[INFO] [stdout]    |
[INFO] [stdout]  1 + use core::error::Error;
[INFO] [stdout]    |
[INFO] [stdout]    = and 1 other candidate
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `ErrorKind`
[INFO] [stdout]   --> src/lib.rs:25:21
[INFO] [stdout]    |
[INFO] [stdout] 25 |     Err(Error::from(ErrorKind::NotFound))
[INFO] [stdout]    |                     ^^^^^^^^^ use of undeclared type `ErrorKind`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this enum
[INFO] [stdout]    |
[INFO] [stdout]  1 + use std::io::ErrorKind;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::os::unix::io::FromRawFd`
[INFO] [stdout]  --> src/lib.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::os::unix::io::FromRawFd;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0433`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `mac_utun` (lib) due to 2 previous errors; 1 warning emitted
[INFO] running `Command { std: "docker" "inspect" "ad70b6c8f8cde6da2ebd61341f47d4d716341ab5af35d6c7c7e3a4463bfefe85", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad70b6c8f8cde6da2ebd61341f47d4d716341ab5af35d6c7c7e3a4463bfefe85", kill_on_drop: false }`
[INFO] [stdout] ad70b6c8f8cde6da2ebd61341f47d4d716341ab5af35d6c7c7e3a4463bfefe85