Enum CredentialsError 

#[non_exhaustive]
pub enum CredentialsError {
    Io {
        path: String,
        source: Error,
    },
    Parse {
        path: String,
        line: usize,
        column: usize,
        message: String,
    },
}

Why credentials.toml could not be read.

Exists so doiget config doctor can report the failure. Without it the only surface was tracing::warn!, which the CLI’s EnvFilter::from_default_env() suppresses at the default level — so a malformed or unreadable credentials file produced no warning, no doctor line, and only the downstream “source unavailable” this module exists to prevent.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Io

The file exists but could not be read.

Fields

path: String

The file that could not be read.

source: Error

The underlying filesystem error.

Parse

The file is not valid TOML.

Deliberately not carrying the toml::de::Error. Its Display renders the offending source line verbatim, and the commonest way this file is malformed is an unterminated api_key = "..." — so the error most likely to be printed is the one whose snippet is the key. Its Debug is worse: it holds the whole file. config doctor prints this variant, so it gets the position and the parser’s message and nothing off the line itself.

Fields

path: String

The file that failed to parse.

line: usize

1-based line of the failure.

column: usize

1-based column of the failure.

message: String

The parser’s message, which quotes no file content.

Trait Implementations

impl Debug for CredentialsError

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Display for CredentialsError

fn fmt(&self, __formatter: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Error for CredentialsError

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.