[INFO] crate syn-error-experiment 0.0.0 is already in cache
[INFO] extracting crate syn-error-experiment 0.0.0 into work/ex/beta-1.37-6/sources/1.36.0/reg/syn-error-experiment/0.0.0
[INFO] extracting crate syn-error-experiment 0.0.0 into work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/syn-error-experiment/0.0.0
[INFO] validating manifest of syn-error-experiment-0.0.0 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 syn-error-experiment-0.0.0 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 syn-error-experiment-0.0.0
[INFO] finished frobbing syn-error-experiment-0.0.0
[INFO] frobbed toml for syn-error-experiment-0.0.0 written to work/ex/beta-1.37-6/sources/1.36.0/reg/syn-error-experiment/0.0.0/Cargo.toml
[INFO] started frobbing syn-error-experiment-0.0.0
[INFO] finished frobbing syn-error-experiment-0.0.0
[INFO] frobbed toml for syn-error-experiment-0.0.0 written to work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/syn-error-experiment/0.0.0/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 syn-error-experiment-0.0.0 against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/syn-error-experiment/0.0.0:/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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] 04d3aab8adf5a21bf91ff8b56d75f0af523551a4f22a97d92194f8b4e03e9102
[INFO] running `"docker" "start" "-a" "04d3aab8adf5a21bf91ff8b56d75f0af523551a4f22a97d92194f8b4e03e9102"`
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]    Compiling syn-error-experiment v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.77s
[INFO] running `"docker" "inspect" "04d3aab8adf5a21bf91ff8b56d75f0af523551a4f22a97d92194f8b4e03e9102"`
[INFO] running `"docker" "rm" "-f" "04d3aab8adf5a21bf91ff8b56d75f0af523551a4f22a97d92194f8b4e03e9102"`
[INFO] [stdout] 04d3aab8adf5a21bf91ff8b56d75f0af523551a4f22a97d92194f8b4e03e9102
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/syn-error-experiment/0.0.0:/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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] f416fcb2412470d144475884b59077e1b48a7289fe323fef2f0c429a9804a032
[INFO] running `"docker" "start" "-a" "f416fcb2412470d144475884b59077e1b48a7289fe323fef2f0c429a9804a032"`
[INFO] [stderr]    Compiling syn-error-experiment v0.0.0 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `"docker" "inspect" "f416fcb2412470d144475884b59077e1b48a7289fe323fef2f0c429a9804a032"`
[INFO] running `"docker" "rm" "-f" "f416fcb2412470d144475884b59077e1b48a7289fe323fef2f0c429a9804a032"`
[INFO] [stdout] f416fcb2412470d144475884b59077e1b48a7289fe323fef2f0c429a9804a032
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-5/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/reg/syn-error-experiment/0.0.0:/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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] 6e75d1bf7787259bb4c75c5c1e410c4ef1a999ddbdeb753466b3f3948d2ba8d2
[INFO] running `"docker" "start" "-a" "6e75d1bf7787259bb4c75c5c1e410c4ef1a999ddbdeb753466b3f3948d2ba8d2"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/syn_error_experiment-ea36a31a7e70ccc9
[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] [stderr]      Running /opt/crater/target/debug/deps/syn_error_experiment-c934bc0130074cb7
[INFO] [stderr]    Doc-tests syn-error-experiment
[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] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - parse_macro_input (line 60) ... ok
[INFO] [stdout] test src/group.rs - braced (line 31) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "6e75d1bf7787259bb4c75c5c1e410c4ef1a999ddbdeb753466b3f3948d2ba8d2"`
[INFO] running `"docker" "rm" "-f" "6e75d1bf7787259bb4c75c5c1e410c4ef1a999ddbdeb753466b3f3948d2ba8d2"`
[INFO] [stdout] 6e75d1bf7787259bb4c75c5c1e410c4ef1a999ddbdeb753466b3f3948d2ba8d2