rusqlite_migration 2.6.0

Simple schema migration library for rusqlite using user_version instead of an SQL table to maintain the current schema version.
Documentation 
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---
source: rusqlite_migration/src/tests/display.rs
expression: m_valid0_down()
snapshot_kind: text
---
M(up: "CREATE TABLE m1(a, b); CREATE TABLE m2(a, b, c);", down: "DROP TABLE m1; DROP TABLE m2;")