book/listings/ch11-writing-automated-tests/no-listing-04-bug-in-add-two/output.txt

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$ cargo test
Compiling adder v0.1.0 (file:///projects/adder)
Finished test [unoptimized + debuginfo] target(s) in 0.61s
Running unittests src/lib.rs (target/debug/deps/adder-92948b65e88960b4)
running 1 test
test tests::it_adds_two ... FAILED
failures:
---- tests::it_adds_two stdout ----
thread 'tests::it_adds_two' panicked at 'assertion failed: `(left == right)`
left: `4`,
right: `5`', src/lib.rs:11:9
note: run with `RUST_BACKTRACE=1` environment variable to display a backtrace
failures:
tests::it_adds_two
test result: FAILED. 0 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
error: test failed, to rerun pass `--lib`