貨物錯誤：未能將“X”作為依賴項

Question

我收到這個奇怪的錯誤：

cargo build
    Updating crates.io index
error: failed to get `anyhow` as a dependency of package `FlexDB v0.1.0 (E:\projects\FlexDB)`

Caused by:
  failed to load source for dependency `anyhow`

Caused by:
  Unable to update registry `crates-io`

Caused by:
  failed to fetch `https://github.com/rust-lang/crates.io-index`

Caused by:
  missing delta bases; class=Indexer (15)

我的cargo.toml文件如下所示：

[package]
name = "FlexDB"
version = "0.1.0"
edition = "2018"

# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html

[dependencies]
anyhow = "1"

我不知道該怎么辦，我做了：

1. rustup update
2. 重啟電腦

Answer 1

@kornel 答案確實解決了這個錯誤，

“看起來您的 ~/.cargo/registry/index 目錄已損壞。刪除它並再次運行 cargo update。”

Answer 2

我在 docker 容器中運行貨物，所以當我收到以下錯誤時，我所做的是我刪除了以下目錄，以下目錄路徑可能因系統而異，貨物將打印路徑以及錯誤

rm  -fr  /usr/local/rust/registry