Closed
Description
Using rustc 1.41.0-beta.1 (eb3f7c2d3 2019-12-17) and rustc 1.42.0-nightly (3a3f4a7cb 2019-12-28) the new dep_kinds field of cargo-metadata's output seems to behave weirdly in some cases.
For example, here's the resolve node for syn:
{
"id": "syn 1.0.11 (registry+https://github.com/rust-lang/crates.io-index)",
"dependencies": [
"proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
"quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)"
],
"deps": [
{
"name": "proc_macro2",
"pkg": "proc-macro2 1.0.6 (registry+https://github.com/rust-lang/crates.io-index)",
"dep_kinds": [
{
"kind": null,
"target": null
},
{
"kind": null,
"target": null
},
{
"kind": null,
"target": null
}
]
},
{
"name": "quote",
"pkg": "quote 1.0.2 (registry+https://github.com/rust-lang/crates.io-index)",
"dep_kinds": [
{
"kind": null,
"target": null
},
{
"kind": null,
"target": null
},
{
"kind": null,
"target": null
}
]
},
{
"name": "unicode_xid",
"pkg": "unicode-xid 0.2.0 (registry+https://github.com/rust-lang/crates.io-index)",
"dep_kinds": [
{
"kind": null,
"target": null
},
{
"kind": null,
"target": null
},
{
"kind": null,
"target": null
}
]
}
],
"features": [
"clone-impls",
"default",
"derive",
"full",
"parsing",
"printing",
"proc-macro",
"quote",
"visit"
]
}Note how the dependencies each have three dep_kinds entries, even though each dependency is only listed once in syn's Cargo.toml:
[package]
name = "syn"
version = "1.0.11" # don't forget to update html_root_url and syn.json
authors = ["David Tolnay <dtolnay@gmail.com>"]
license = "MIT OR Apache-2.0"
description = "Parser for Rust source code"
repository = "https://github.com/dtolnay/syn"
documentation = "https://docs.rs/syn"
categories = ["development-tools::procedural-macro-helpers"]
readme = "README.md"
include = [
"/benches/**",
"/build.rs",
"/Cargo.toml",
"/LICENSE-APACHE",
"/LICENSE-MIT",
"/README.md",
"/src/**",
"/tests/**",
]
edition = "2018"
[features]
default = ["derive", "parsing", "printing", "clone-impls", "proc-macro"]
derive = []
full = []
parsing = []
printing = ["quote"]
visit = []
visit-mut = []
fold = []
clone-impls = []
extra-traits = []
proc-macro = ["proc-macro2/proc-macro", "quote/proc-macro"]
[dependencies]
proc-macro2 = { version = "1.0", default-features = false }
quote = { version = "1.0", optional = true, default-features = false }
unicode-xid = "0.2"
[dev-dependencies]
anyhow = "1.0"
flate2 = "1.0"
insta = "0.12"
rayon = "1.0"
ref-cast = "1.0"
regex = "1.0"
reqwest = { version = "0.10.0-alpha.2", features = ["blocking"] }
tar = "0.4"
termcolor = "1.0"
walkdir = "2.1"
[[bench]]
name = "rust"
harness = false
required-features = ["full", "parsing"]
[[bench]]
name = "file"
required-features = ["full", "parsing"]
[package.metadata.docs.rs]
all-features = true
[package.metadata.playground]
all-features = true
[badges]
travis-ci = { repository = "dtolnay/syn" }
[workspace]
members = ["dev", "json"]