Use .is_empty() where appropriate
authormcarton <cartonmartin+git@gmail.com>
Fri, 15 Jan 2016 14:51:28 +0000 (15:51 +0100)
committermcarton <cartonmartin+git@gmail.com>
Sat, 16 Jan 2016 11:42:56 +0000 (12:42 +0100)
commit8628dbeb0d10896dc54bdc44e46697b1ed52d865
tree0b5d6569db117053a9e7a35265db65216b84576c
parent715dcb8ec52f224b0745527087d5897acf78fd4b
Use .is_empty() where appropriate

Fix all of Clippy’s len_zero warnings.
18 files changed:
src/cargo/core/registry.rs
src/cargo/core/resolver/mod.rs
src/cargo/ops/cargo_clean.rs
src/cargo/ops/cargo_compile.rs
src/cargo/ops/cargo_doc.rs
src/cargo/ops/cargo_generate_lockfile.rs
src/cargo/ops/cargo_install.rs
src/cargo/ops/cargo_rustc/context.rs
src/cargo/ops/cargo_rustc/fingerprint.rs
src/cargo/ops/cargo_rustc/job_queue.rs
src/cargo/ops/cargo_test.rs
src/cargo/sources/path.rs
src/cargo/sources/registry.rs
src/cargo/util/dependency_queue.rs
src/cargo/util/errors.rs
src/cargo/util/toml.rs
tests/support/mod.rs
tests/support/registry.rs