[INFO] fetching crate xu4-hal 0.1.2...
[INFO] checking xu4-hal-0.1.2 against try#89c05fd3cc6404a13e1bd71450c6132a2755fa4b for pr-69741
[INFO] extracting crate xu4-hal 0.1.2 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate xu4-hal 0.1.2 on toolchain 89c05fd3cc6404a13e1bd71450c6132a2755fa4b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate xu4-hal 0.1.2
[INFO] finished tweaking crates.io crate xu4-hal 0.1.2
[INFO] tweaked toml for crates.io crate xu4-hal 0.1.2 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate xu4-hal 0.1.2 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+89c05fd3cc6404a13e1bd71450c6132a2755fa4b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] a10212f92f1e52b204c4f86ca493b9ac0d5fb3eea6fabd83d127d3f5b66c924f
[INFO] running `"docker" "start" "-a" "a10212f92f1e52b204c4f86ca493b9ac0d5fb3eea6fabd83d127d3f5b66c924f"`
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]     Checking nix v0.11.1
[INFO] [stderr]     Checking backtrace v0.3.44
[INFO] [stderr]     Checking error-chain v0.12.2
[INFO] [stderr]     Checking gpio-cdev v0.2.0
[INFO] [stderr]     Checking xu4-hal v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0599]: no method named `unwrap` found for enum `std::result::Result<xu4_hal::gpio::OutputPin, xu4_hal::gpio::Error>` in the current scope
[INFO] [stderr]   --> examples/blinky.rs:17:58
[INFO] [stderr]    |
[INFO] [stderr] 17 |     let mut op = xu4::OutputPin::new(xu4::Chip::Gpa0, 2).unwrap();
[INFO] [stderr]    |                                                          ^^^^^^ method not found in `std::result::Result<xu4_hal::gpio::OutputPin, xu4_hal::gpio::Error>`
[INFO] [stderr]    | 
[INFO] [stderr]   ::: /opt/rustwide/workdir/src/gpio.rs:11:1
[INFO] [stderr]    |
[INFO] [stderr] 11 | pub enum Error {
[INFO] [stderr]    | -------------- doesn't satisfy `xu4_hal::gpio::Error: std::fmt::Debug`
[INFO] [stderr]    |
[INFO] [stderr]    = note: the method `unwrap` exists but the following trait bounds were not satisfied:
[INFO] [stderr]            `xu4_hal::gpio::Error: std::fmt::Debug`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `embedded_hal::digital::v2::OutputPin`
[INFO] [stderr]  --> examples/blinky.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use embedded_hal::digital::v2::OutputPin;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0599`.
[INFO] [stderr] error: could not compile `xu4-hal`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "a10212f92f1e52b204c4f86ca493b9ac0d5fb3eea6fabd83d127d3f5b66c924f"`
[INFO] running `"docker" "rm" "-f" "a10212f92f1e52b204c4f86ca493b9ac0d5fb3eea6fabd83d127d3f5b66c924f"`
[INFO] [stdout] a10212f92f1e52b204c4f86ca493b9ac0d5fb3eea6fabd83d127d3f5b66c924f