Crash while going through guide

[Shadlock0133]

Using stable 1.27.1 and nightly 2018-07-15

Log

➜  rust-url git:(bfa167b) ✗ cargo fuzz run fuzz_target_1         
error: failed to run `rustc` to learn about target-specific information
Caused by:
process didn't exit successfully: rustc - --crate-name ___ --print=file-names --cfg fuzzing -Cpasses=sancov -Cllvm-args=-sanitizer-coverage-level=4 -Cllvm-args=-sanitizer-coverage-trace-pc-guard -Cllvm-args=-sanitizer-coverage-trace-compares -Cllvm-args=-sanitizer-coverage-trace-divs -Cllvm-args=-sanitizer-coverage-trace-geps -Cllvm-args=-sanitizer-coverage-prune-blocks=0 -Zsanitizer=address -Cpanic=abort --target x86_64-unknown-linux-gnu --crate-type bin --crate-type rlib --crate-type dylib --crate-type cdylib --crate-type staticlib --crate-type proc-macro (exit code: 101)
--- stderr
error: the option Z is only accepted on the nightly compiler
error: could not build fuzz script: "cargo" "build" "--manifest-path" "/home/shadlock0133/projects/rust/rust-url/fuzz/Cargo.toml" "--verbose" "--bin" "fuzz_target_1" "--target" "x86_64-unknown-linux-gnu"%                                                                            
➜  rust-url git:(bfa167b) ✗ cargo +nightly fuzz run fuzz_target_1
       Fresh cc v1.0.18
       Fresh arbitrary v0.1.1

       Fresh matches v0.1.6

       Fresh rustc-serialize v0.3.24

       Fresh url v0.2.34 (file:///home/shadlock0133/projects/rust/rust-url)

       Fresh libfuzzer-sys v0.1.0 (https://github.com/rust-fuzz/libfuzzer-sys.git#86bcaac9)

       Fresh url-fuzz v0.0.1 (file:///home/shadlock0133/projects/rust/rust-url/fuzz)

    Finished dev [unoptimized + debuginfo] target(s) in 0.28s

       Fresh cc v1.0.18
       Fresh matches v0.1.6

       Fresh arbitrary v0.1.1

       Fresh rustc-serialize v0.3.24

       Fresh url v0.2.34 (file:///home/shadlock0133/projects/rust/rust-url)

       Fresh libfuzzer-sys v0.1.0 (https://github.com/rust-fuzz/libfuzzer-sys.git#86bcaac9)

       Fresh url-fuzz v0.0.1 (file:///home/shadlock0133/projects/rust/rust-url/fuzz)

    Finished dev [unoptimized + debuginfo] target(s) in 0.02s

     Running fuzz/target/x86_64-unknown-linux-gnu/debug/fuzz_target_1 -artifact_prefix=/home/shadlock0133/projects/rust/rust-url/fuzz/artifacts/fuzz_target_1/ /home/shadlock0133/projects/rust/rust-url/fuzz/corpus/fuzz_target_1
[1]    22280 illegal hardware instruction (core dumped)  cargo +nightly fuzz run fuzz_target_1

[frewsxcv]

since you ran cargo +nightly fuzz run fuzz_target_1, you're using nightly rust. can you run cargo +nightly -Vv to find out how recent your rust nightly is?

[Shadlock0133]

for nightly:

cargo 1.29.0-nightly (af9e40c26 2018-07-05)
release: 1.29.0
commit-hash: af9e40c26b4ea2ebd6f31ee86ee61d5ac1c74eb0
commit-date: 2018-07-05

for stable:

cargo 1.27.0 (1e95190e5 2018-05-27)
release: 1.27.0
commit-hash: 1e95190e5ffd6e6b701ad87dab4671246b96a9ce
commit-date: 2018-05-27

[frewsxcv]

strange, it's all working for me on the same nightly, though on macOS

[JulioBarros]

It works for me on Ubuntu 18.04.5 LTS on nightly but not stable.

cargo 1.48.0-nightly (8777a6b1e 2020-09-15) release: 1.48.0 commit-hash: 8777a6b1e8834899f51b7e09cc9b8d85b2417110 commit-date: 2020-09-15

cargo 1.46.0 (149022b1d 2020-07-17) release: 1.46.0 commit-hash: 149022b1d8f382e69c1616f6a46b69ebf59e2dea commit-date: 2020-07-17