Starting download of /gnu/store/0vzb83kj5nrwjkxyb77sqaj06fx8ybnx-rust-backtrace-0.3.56.tar.gz
From https://crates.io/api/v1/crates/backtrace/0.3.56/download...
following redirection to `https://static.crates.io/crates/backtrace/backtrace-0.3.56.crate'...
GC Warning: Repeated allocation of very large block (appr. size 69632):
	May lead to memory leak and poor performance

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