revert sysinfo optional

Author: Oppen

prover/Cargo.toml

@@ -11,7 +11,7 @@ cuda = ["stark/cuda"]
 test-cuda-faults = ["cuda", "stark/test-cuda-faults"]
 debug-checks = ["stark/debug-checks"]
 instruments = ["stark/instruments"]
-disk-spill = ["stark/disk-spill", "dep:sysinfo"]
+disk-spill = ["stark/disk-spill"]
 
 [dependencies]
 stark = { path = "../crypto/stark" }
@@ -23,10 +23,7 @@ hashbrown = { version = "0.15", default-features = false, features = ["inline-mo
 foldhash = "0.2"
 serde = { version = "1.0", features = ["derive"] }
 rayon = { version = "1.8.0", optional = true }
-# Only the `disk-spill` auto-storage path queries OS memory. `sysinfo` is a host
-# crate, so keep it optional and out of guest builds that depend on the prover
-# with `--no-default-features` (e.g. the in-VM recursion verifier guest).
-sysinfo = { version = "0.31", default-features = false, features = ["system"], optional = true }
+sysinfo = { version = "0.31", default-features = false, features = ["system"] }
 log = "0.4"
 sha3 = { version = "0.10.8", default-features = false }