[INFO] fetching crate prolog_parser 0.8.27...
[INFO] extracting crate prolog_parser 0.8.27 into work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/prolog_parser/0.8.27
[INFO] extracting crate prolog_parser 0.8.27 into work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/prolog_parser/0.8.27
[INFO] validating manifest of prolog_parser-0.8.27 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 prolog_parser-0.8.27 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 prolog_parser-0.8.27
[INFO] finished frobbing prolog_parser-0.8.27
[INFO] frobbed toml for prolog_parser-0.8.27 written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/reg/prolog_parser/0.8.27/Cargo.toml
[INFO] started frobbing prolog_parser-0.8.27
[INFO] finished frobbing prolog_parser-0.8.27
[INFO] frobbed toml for prolog_parser-0.8.27 written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/prolog_parser/0.8.27/Cargo.toml
[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 prolog_parser-0.8.27 against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/reg/prolog_parser/0.8.27:/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" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3dc89d8a52d8edb83197e3392f8bf0495fa0d672f24f257dd1f876406ad58480
[INFO] running `"docker" "start" "-a" "3dc89d8a52d8edb83197e3392f8bf0495fa0d672f24f257dd1f876406ad58480"`
[INFO] [stderr]    Compiling dirs v2.0.1
[INFO] [stderr]     Checking stackvector v1.0.6
[INFO] [stderr]    Compiling gmp-mpfr-sys v1.1.14
[INFO] [stderr]     Checking lexical-core v0.4.2
[INFO] [stderr]     Checking lexical v2.2.1
[INFO] [stderr]    Compiling rug v1.5.1
[INFO] [stderr]     Checking prolog_parser v0.8.27 (/opt/crater/workdir)
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]  --> src/macros.rs:4:83
[INFO] [stderr]   |
[INFO] [stderr] 4 |     ($c: expr, [$head:expr $(, $cs:expr)+]) => ($c == $head || char_class!($c, [$($cs),*]));
[INFO] [stderr]   |                                         - expected repetition                     ^^^  - conflicting repetition
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]  --> src/macros.rs:4:83
[INFO] [stderr]   |
[INFO] [stderr] 4 |     ($c: expr, [$head:expr $(, $cs:expr)+]) => ($c == $head || char_class!($c, [$($cs),*]));
[INFO] [stderr]   |                                         - expected repetition                     ^^^  - conflicting repetition
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[deny(meta_variable_misuse)] on by default
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `prolog_parser`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: Could not compile `prolog_parser`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "3dc89d8a52d8edb83197e3392f8bf0495fa0d672f24f257dd1f876406ad58480"`
[INFO] running `"docker" "rm" "-f" "3dc89d8a52d8edb83197e3392f8bf0495fa0d672f24f257dd1f876406ad58480"`
[INFO] [stdout] 3dc89d8a52d8edb83197e3392f8bf0495fa0d672f24f257dd1f876406ad58480