Variable	Default	Description
CARGO_SLICER_VIRTUAL	unset	Set to 1 to enable virtual slicing
CARGO_SLICER_CODEGEN_FILTER	unset	Set to 1 to skip CGUs containing only stubs
RUSTC_WRAPPER	unset	Set to path of cargo_slicer_dispatch
CARGO_SLICER_DRIVER	unset	Set to path of cargo-slicer-rustc

Variable	Default	Description
CARGO_SLICER_CROSS_CRATE	unset	Set to 1 to enable cross-crate analysis
CARGO_SLICER_PARSER	syn	Pre-analysis backend: syn, fast, or ctags

Variable	Default	Description
CARGO_SLICER_MIR_PRECISE	unset	Set to 1 for MIR-level whole-program analysis
CARGO_SLICER_WORKSPACE_CRATES	unset	Comma-separated list of workspace crates to harvest

Variable	Default	Description
CARGO_SLICER_SKIP_THRESHOLD	auto	Skip driver when predicted stubs < threshold. auto = skip 0-stub crates; 0/never = never skip
CARGO_SLICER_DAEMON	unset	Set to 1 to enable fork-server (amortises 300 ms driver load)
CARGO_SLICER_SCCACHE	auto	Path to sccache, or /nonexistent to disable
CARGO_SLICER_RELAX_UNSAFE	unset	Set to 1 to allow stubbing unsafe fn

Variable	Default	Description
CARGO_SLICER_CACHE_DIR	.slicer-cache	Directory for incremental cache files
CARGO_SLICER_NO_CACHE	unset	Set to 1 to disable caching entirely

Variable	Default	Description
CARGO_SLICER_DEBUG	unset	Set to 1 to enable debug logging
CARGO_SLICER_DEBUG_LOG	.cargo-slicer-debug.log	Custom path for debug log
CARGO_SLICER_MARKED_OUT	unset	Write marked items to a file for inspection