[INFO] updating cached repository kazagistar/regexgen
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/kazagistar/regexgen
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/kazagistar/regexgen" "work/ex/beta-1.37-6/sources/1.36.0/gh/kazagistar/regexgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/kazagistar/regexgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kazagistar/regexgen" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kazagistar/regexgen"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kazagistar/regexgen'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a2356ccc7a84d553fdf8127a48fc0188917d3436
[INFO] sha for GitHub repo kazagistar/regexgen: a2356ccc7a84d553fdf8127a48fc0188917d3436
[INFO] validating manifest of kazagistar/regexgen 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 kazagistar/regexgen 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 kazagistar/regexgen
[INFO] finished frobbing kazagistar/regexgen
[INFO] frobbed toml for kazagistar/regexgen written to work/ex/beta-1.37-6/sources/1.36.0/gh/kazagistar/regexgen/Cargo.toml
[INFO] started frobbing kazagistar/regexgen
[INFO] finished frobbing kazagistar/regexgen
[INFO] frobbed toml for kazagistar/regexgen written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/kazagistar/regexgen/Cargo.toml
[INFO] crate kazagistar/regexgen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kazagistar/regexgen/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] the lockfile is outdated, regenerating it
[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] [stderr]     Blocking waiting for file lock on package cache
[INFO] testing kazagistar/regexgen 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-5/1.36.0:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/1.36.0/gh/kazagistar/regexgen:/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] 504aff69d5342fe8b97fef7b2a08aeea27efd7b79eb16a1c8b847d99150acf86
[INFO] running `"docker" "start" "-a" "504aff69d5342fe8b97fef7b2a08aeea27efd7b79eb16a1c8b847d99150acf86"`
[INFO] [stderr]    Compiling syn v0.15.42
[INFO] [stderr]    Compiling env_logger v0.6.2
[INFO] [stderr]    Compiling quickcheck v0.8.5
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]    Compiling regexgen v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: /opt/crater/target/debug/deps/libquickcheck_macros-92d853c3bedd728c.so: undefined symbol: __rustc_plugin_registrar_ccc59644e4b88feb8ec16798cb6077b6__
[INFO] [stderr]  --> src/main.rs:5:11
[INFO] [stderr]   |
[INFO] [stderr] 5 | #![plugin(quickcheck_macros)]
[INFO] [stderr]   |           ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `regexgen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "504aff69d5342fe8b97fef7b2a08aeea27efd7b79eb16a1c8b847d99150acf86"`
[INFO] running `"docker" "rm" "-f" "504aff69d5342fe8b97fef7b2a08aeea27efd7b79eb16a1c8b847d99150acf86"`
[INFO] [stdout] 504aff69d5342fe8b97fef7b2a08aeea27efd7b79eb16a1c8b847d99150acf86