Enum BuildKeyError 

pub enum BuildKeyError {
    TaskNotInWorkspace {
        task: TaskId,
    },
    PredecessorStreamsMissing {
        predecessor: TaskId,
    },
    InputPatternResolutionFailed {
        root: PathBuf,
        source: FsError,
    },
    InputContentReadFailed {
        path: PathBuf,
        source: FsError,
    },
    InputNotARegularFile {
        path: PathBuf,
    },
}

Failure modes of build_cache_key.

Variants

TaskNotInWorkspace

The supplied TaskId does not name a task that exists in the supplied Workspace. Either the project is unknown or the project does not declare the task.

Fields

task: TaskId

The unresolved task identifier.

PredecessorStreamsMissing

One of the target task’s hard-edge predecessors does not have an entry in the supplied predecessor-stream-hash map. Typically a scheduler bug: the predecessor must complete (and therefore have its stream hashes recorded) before its downstream task is keyed.

Fields

predecessor: TaskId

The predecessor that lacked recorded stream hashes.

InputPatternResolutionFailed

Walking the filesystem to resolve a task’s inputs patterns failed. Surfaces the originating FsError and the absolute path the walk was attempting.

Fields

root: PathBuf

The absolute path that was being walked when the failure occurred (typically the project root or the workspace root, depending on the spec form).

source: FsError

Underlying filesystem error.

InputContentReadFailed

Reading the bytes of one matched input file failed.

Fields

path: PathBuf

Absolute path of the file the executor tried to read.

source: FsError

Underlying filesystem error.

InputNotARegularFile

One of the matched input paths is a non-regular file kind the executor cannot hash (a socket, a FIFO, a block or character device). Symbolic links to regular files are followed transparently per CACHE-006 and do NOT trigger this variant.

Fields

path: PathBuf

Absolute path of the offending entry.

Trait Implementations

impl Debug for BuildKeyError

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

Formats the value using the given formatter.

impl Display for BuildKeyError

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

Formats the value using the given formatter.

impl Error for BuildKeyError

where Self: Debug + Display,

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.

impl ErrorCompat for BuildKeyError

fn backtrace(&self) -> Option<&Backtrace>

Returns a Backtrace that may be printed.

fn iter_chain(&self) -> ChainCompat<'_, '_>

where Self: AsErrorSource,

Returns an iterator for traversing the chain of errors, starting with the current error and continuing with recursive calls to Error::source.