[INFO] crate synfuzz 0.1.0 is already in cache
[INFO] extracting crate synfuzz 0.1.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/synfuzz/0.1.0
[INFO] extracting crate synfuzz 0.1.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/synfuzz/0.1.0
[INFO] validating manifest of synfuzz-0.1.0 on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of synfuzz-0.1.0 on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing synfuzz-0.1.0
[INFO] finished frobbing synfuzz-0.1.0
[INFO] frobbed toml for synfuzz-0.1.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/synfuzz/0.1.0/Cargo.toml
[INFO] started frobbing synfuzz-0.1.0
[INFO] finished frobbing synfuzz-0.1.0
[INFO] frobbed toml for synfuzz-0.1.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/synfuzz/0.1.0/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing synfuzz-0.1.0 against 1.36.0 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/synfuzz/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "build" "--frozen"`
[INFO] [stdout] 048a27888b906545d60e40d111ce7fd1b5aa894f3504a92dd89e19e8055aef34
[INFO] running `"docker" "start" "-a" "048a27888b906545d60e40d111ce7fd1b5aa894f3504a92dd89e19e8055aef34"`
[INFO] [stderr]    Compiling synfuzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.59s
[INFO] running `"docker" "inspect" "048a27888b906545d60e40d111ce7fd1b5aa894f3504a92dd89e19e8055aef34"`
[INFO] running `"docker" "rm" "-f" "048a27888b906545d60e40d111ce7fd1b5aa894f3504a92dd89e19e8055aef34"`
[INFO] [stdout] 048a27888b906545d60e40d111ce7fd1b5aa894f3504a92dd89e19e8055aef34
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/synfuzz/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] 6c6cde3728330e166f8b4376d5f78e91f0fdf654417f823dfaf5d4f5b5dd8725
[INFO] running `"docker" "start" "-a" "6c6cde3728330e166f8b4376d5f78e91f0fdf654417f823dfaf5d4f5b5dd8725"`
[INFO] [stderr]    Compiling synfuzz v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> examples/expression.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.32s
[INFO] running `"docker" "inspect" "6c6cde3728330e166f8b4376d5f78e91f0fdf654417f823dfaf5d4f5b5dd8725"`
[INFO] running `"docker" "rm" "-f" "6c6cde3728330e166f8b4376d5f78e91f0fdf654417f823dfaf5d4f5b5dd8725"`
[INFO] [stdout] 6c6cde3728330e166f8b4376d5f78e91f0fdf654417f823dfaf5d4f5b5dd8725
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-0/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/reg/synfuzz/0.1.0:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+1.36.0" "test" "--frozen"`
[INFO] [stdout] d9e0b8d0a429bcc999a4a3a32f430f589b95f1432f6fce2d622b4c86ea4319c0
[INFO] running `"docker" "start" "-a" "d9e0b8d0a429bcc999a4a3a32f430f589b95f1432f6fce2d622b4c86ea4319c0"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.05s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/synfuzz-0ce8be74f312fdfc
[INFO] [stdout] 
[INFO] [stdout] running 22 tests
[INFO] [stdout] test combinator::test::negate_choice ... ok
[INFO] [stdout] test combinator::test::generate_rule ... ok
[INFO] [stdout] test combinator::test::generate_repeatn ... ok
[INFO] [stdout] test combinator::test::negate_not ... ok
[INFO] [stdout] test combinator::test::generate_optional ... ok
[INFO] [stdout] test combinator::test::negate_many ... ok
[INFO] [stdout] test combinator::test::generate_not ... ok
[INFO] [stdout] test combinator::test::negate_many1 ... ok
[INFO] [stdout] test combinator::test::generate_many1 ... ok
[INFO] [stdout] test combinator::test::negate_rule ... ok
[INFO] [stdout] test combinator::test::generate_choice ... ok
[INFO] [stdout] test combinator::test::negate_repeatn ... ok
[INFO] [stdout] test combinator::test::negate_optional ... ok
[INFO] [stdout] test value::tests::generate_ch ... ok
[INFO] [stdout] test combinator::test::generate_many ... ok
[INFO] [stdout] test value::tests::generate_byte ... ok
[INFO] [stdout] test value::tests::negate_string ... ok
[INFO] [stdout] test value::tests::generate_any ... ok
[INFO] [stdout] test value::tests::negate_ch ... ok
[INFO] [stdout] test value::tests::generate_char_range ... ok
[INFO] [stderr]    Doc-tests synfuzz
[INFO] [stdout] test value::tests::negate_byte ... ok
[INFO] [stdout] test value::tests::generate_string ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 22 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "d9e0b8d0a429bcc999a4a3a32f430f589b95f1432f6fce2d622b4c86ea4319c0"`
[INFO] running `"docker" "rm" "-f" "d9e0b8d0a429bcc999a4a3a32f430f589b95f1432f6fce2d622b4c86ea4319c0"`
[INFO] [stdout] d9e0b8d0a429bcc999a4a3a32f430f589b95f1432f6fce2d622b4c86ea4319c0