[INFO] cloning repository kazagistar/regexgen
[INFO] running `"git" "clone" "--bare" "git://github.com/kazagistar/regexgen.git" "work/cache/sources/gh/kazagistar/regexgen"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/kazagistar/regexgen'...
[INFO] running `"git" "clone" "work/cache/sources/gh/kazagistar/regexgen" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kazagistar/regexgen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kazagistar/regexgen'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/kazagistar/regexgen" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/kazagistar/regexgen"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/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 master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of kazagistar/regexgen on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "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/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/kazagistar/regexgen/Cargo.toml
[INFO] crate kazagistar/regexgen already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] error: the lock file /mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/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/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking kazagistar/regexgen against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/kazagistar/regexgen:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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=forbid" "-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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 54128a05fc2ca8b1f7d3d636edb5f2333f02fd2c96432372a58cb0c6a83cfb0d
[INFO] running `"docker" "start" "-a" "54128a05fc2ca8b1f7d3d636edb5f2333f02fd2c96432372a58cb0c6a83cfb0d"`
[INFO] [stderr]    Compiling syn v0.15.39
[INFO] [stderr]    Compiling quickcheck_macros v0.8.0
[INFO] [stderr]     Checking regexgen v0.0.1 (/opt/crater/workdir)
[INFO] [stderr] error: /opt/crater/target/debug/deps/libquickcheck_macros-39c8a3c25ee423f1.so: undefined symbol: __rustc_plugin_registrar_b0bf4091157b8bf9bfefb263a57685f3__
[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] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: /opt/crater/target/debug/deps/libquickcheck_macros-39c8a3c25ee423f1.so: undefined symbol: __rustc_plugin_registrar_b0bf4091157b8bf9bfefb263a57685f3__
[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" "54128a05fc2ca8b1f7d3d636edb5f2333f02fd2c96432372a58cb0c6a83cfb0d"`
[INFO] running `"docker" "rm" "-f" "54128a05fc2ca8b1f7d3d636edb5f2333f02fd2c96432372a58cb0c6a83cfb0d"`
[INFO] [stdout] 54128a05fc2ca8b1f7d3d636edb5f2333f02fd2c96432372a58cb0c6a83cfb0d