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# rustc version rustc 1.22.0-dev (b1cfd1750 2017-09-21)
# docs.rs version cratesfyi 0.4.2 (13da7b2 2017-10-12)
# build log Updating registry `https://github.com/rust-lang/crates.io-index` Downloading rustc-ap-rustc_errors v35.0.0 Compiling rustc-ap-serialize v35.0.0 Fresh cfg-if v0.1.2 Fresh smallvec v0.6.0 Fresh libc v0.2.36 Fresh term v0.4.6 Fresh stable_deref_trait v1.0.0 Fresh unicode-width v0.1.4 Fresh log v0.4.1 Running `rustc --crate-name serialize .cargo/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-35.0.0/lib.rs --crate-type lib --emit=dep-info,link -C debuginfo=2 -C metadata=a7c55da7ada804e7 -C extra-filename=-a7c55da7ada804e7 --out-dir /home/cratesfyi/cratesfyi/debug/deps -L dependency=/home/cratesfyi/cratesfyi/debug/deps --cap-lints allow` Fresh owning_ref v0.3.3 Fresh rand v0.4.2 Fresh rand v0.3.22 Fresh parking_lot_core v0.2.10 Fresh parking_lot v0.5.3 error[E0277]: the `?` operator can only be applied to values that implement `std::ops::Try` --> .cargo/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-35.0.0/json.rs:1055:22 | 1055 | target = target.find(*key)?; | ------------------ | | | the `?` operator cannot be applied to type `std::option::Option<&json::Json>` | in this macro invocation | = help: the trait `std::ops::Try` is not implemented for `std::option::Option<&json::Json>` = note: required by `std::ops::Try::into_result` error: aborting due to previous error thread 'main' panicked at 'ChainedError { error: Could not compile `rustc-ap-serialize`., cause: process didn't exit successfully: `rustc --crate-name serialize .cargo/registry/src/github.com-1ecc6299db9ec823/rustc-ap-serialize-35.0.0/lib.rs --crate-type lib --emit=dep-info,link -C debuginfo=2 -C metadata=a7c55da7ada804e7 -C extra-filename=-a7c55da7ada804e7 --out-dir /home/cratesfyi/cratesfyi/debug/deps -L dependency=/home/cratesfyi/cratesfyi/debug/deps --cap-lints allow` (exit code: 101) }', src/bin/cratesfyi.rs:142 note: Run with `RUST_BACKTRACE=1` for a backtrace.