Support rename-dependency cargo feature

[jonhoo]

Cargo recently got support for renaming dependencies. That is, you can do:

cargo-features = ["rename-dependency"]
# ...
[dependencies]
bar = { version = "0.1", package = "foo" }

To import the crate foo under the name bar. However, this seems to confuse cargo-bloat, which reports:

error: failed to parse manifest at `/home/jon/dev/projects/distributary/benchmarks/Cargo.toml`

Caused by:
  unknown cargo feature `rename-dependency`

[RazrFalcon]

Probably I should bump cargo to 0.27.

[RazrFalcon]

Turns out that 0.27 has tons of breaking changes and it will take some time to port everything.