Starting download of /gnu/store/k9fczljfy3m1y950rjh5fjq7mrwhd832-rust-proptest-1.3.1.tar.gz
From https://crates.io/api/v1/crates/proptest/1.3.1/download...
following redirection to `https://static.crates.io/crates/proptest/proptest-1.3.1.crate'...
GC Warning: Repeated allocation of very large block (appr. size 69632):
	May lead to memory leak and poor performance

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