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# rustc version rustc 1.26.0-dev (0eb87c9bf 2018-03-16)
# docs.rs version cratesfyi 0.5.0 (579f83b 2018-03-05)
# build log Updating registry `https://github.com/rust-lang/crates.io-index` Downloading fpool v0.3.0 Documenting fpool v0.3.0 Running `rustdoc --crate-name fpool .cargo/registry/src/github.com-1ecc6299db9ec823/fpool-0.3.0/src/lib.rs -o /home/cratesfyi/cratesfyi/doc -Z unstable-options --resource-suffix -20180316-1.26.0-dev-0eb87c9bf -L dependency=/home/cratesfyi/cratesfyi/debug/deps` error[E0658]: `impl Trait` in return position is experimental (see issue #34511) --> .cargo/registry/src/github.com-1ecc6299db9ec823/fpool-0.3.0/src/pool/round_robin_pool.rs:16:32 | 16 | pub fn into_items(self) -> impl Iterator<Item=T> { | ^^^^^^^^^^^^^^^^^^^^^ | = help: add #![feature(conservative_impl_trait)] to the crate attributes to enable error: Compilation failed, aborting rustdoc thread 'main' panicked at 'Error( CargoError( ChainedError { error: Could not document `fpool`., cause: process didn't exit successfully: `rustdoc --crate-name fpool .cargo/registry/src/github.com-1ecc6299db9ec823/fpool-0.3.0/src/lib.rs -o /home/cratesfyi/cratesfyi/doc -Z unstable-options --resource-suffix -20180316-1.26.0-dev-0eb87c9bf -L dependency=/home/cratesfyi/cratesfyi/debug/deps` (exit code: 101) } ), State { next_error: None, backtrace: None } )', src/bin/cratesfyi.rs:142:13 note: Run with `RUST_BACKTRACE=1` for a backtrace.