A run blocked on the cache-entry flock was silent: the wait went to
the log sink, which renders nowhere by default, so the CLI read as
a hang. The Progress trait gains message() - a status line outside
the counted-operation protocol, defaulting to a no-op so existing
sinks keep compiling - and the flock wait reports what it is
waiting for. The CLI renders messages on the active bar and spins
one up when no operation is active.
run maps the flags onto RunOptions, promotes the first read-write share
to the workspace, inherits stdio, and exits with the guest's code; probe
reports what a run would find (KVM, libkrun loadability with the
remediation, nested virt, cache writability) and fails when a run
would. T6, the no-mount audit, lives here where the binary is built,
ignored behind ECROU_BIN for CI.
vhaudiquet
Valentin Haudiquet