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# rustc version
rustc 1.12.0-nightly (54c0dcfd6 2016-07-28)# docs.rs version
cratesfyi 0.2.0 (5dbd676 2016-07-30)# build log
Updating registry `https://github.com/rust-lang/crates.io-index`
Downloading speculate v0.0.3
Documenting speculate v0.0.3
Running `rustdoc .cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/lib.rs --crate-name speculate -o /home/cratesfyi/speculate-0.0.3/doc -L dependency=/home/cratesfyi/speculate-0.0.3/debug -L dependency=/home/cratesfyi/speculate-0.0.3/debug/deps`
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:4:17: 4:21 error: `#[derive]` for custom traits is not stable enough for use and is subject to change (see issue #29644)
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:4 #[derive(Clone, Show)]
^~~~
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:4:17: 4:21 help: add #![feature(custom_derive)] to the crate attributes to enable
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:11:17: 11:21 error: `#[derive]` for custom traits is not stable enough for use and is subject to change (see issue #29644)
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:11 #[derive(Clone, Show)]
^~~~
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:11:17: 11:21 help: add #![feature(custom_derive)] to the crate attributes to enable
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:19:17: 19:21 error: `#[derive]` for custom traits is not stable enough for use and is subject to change (see issue #29644)
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:19 #[derive(Clone, Show)]
^~~~
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:19:17: 19:21 help: add #![feature(custom_derive)] to the crate attributes to enable
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:25:17: 25:21 error: `#[derive]` for custom traits is not stable enough for use and is subject to change (see issue #29644)
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:25 #[derive(Clone, Show)]
^~~~
.cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/block.rs:25:17: 25:21 help: add #![feature(custom_derive)] to the crate attributes to enable
error: aborting due to 4 previous errors
thread 'main' panicked at 'ChainedError {
error: failed to compile `speculate v0.0.3`, intermediate artifacts can be found at `/home/cratesfyi/speculate-0.0.3`,
cause: ChainedError {
error: Could not document `speculate`.,
cause: Process didn't exit successfully: `rustdoc .cargo/registry/src/github.com-1ecc6299db9ec823/speculate-0.0.3/src/lib.rs --crate-name speculate -o /home/cratesfyi/speculate-0.0.3/doc -L dependency=/home/cratesfyi/speculate-0.0.3/debug -L dependency=/home/cratesfyi/speculate-0.0.3/debug/deps` (exit code: 101)
}
}', src/bin/cratesfyi.rs:119
note: Run with `RUST_BACKTRACE=1` for a backtrace.