[INFO] cloning repository howeih/Day-30-Strassen-multiplication
[INFO] running `"git" "clone" "--bare" "git://github.com/howeih/Day-30-Strassen-multiplication.git" "work/cache/sources/gh/howeih/Day-30-Strassen-multiplication"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/howeih/Day-30-Strassen-multiplication'...
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-30-Strassen-multiplication" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/howeih/Day-30-Strassen-multiplication"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/howeih/Day-30-Strassen-multiplication'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/howeih/Day-30-Strassen-multiplication" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/howeih/Day-30-Strassen-multiplication"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/howeih/Day-30-Strassen-multiplication'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 6f8d722a91e269193891940b5a29e5a4a1f221ce
[INFO] sha for GitHub repo howeih/Day-30-Strassen-multiplication: 6f8d722a91e269193891940b5a29e5a4a1f221ce
[INFO] validating manifest of howeih/Day-30-Strassen-multiplication 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 howeih/Day-30-Strassen-multiplication 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 howeih/Day-30-Strassen-multiplication
[INFO] finished frobbing howeih/Day-30-Strassen-multiplication
[INFO] frobbed toml for howeih/Day-30-Strassen-multiplication written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/howeih/Day-30-Strassen-multiplication/Cargo.toml
[INFO] started frobbing howeih/Day-30-Strassen-multiplication
[INFO] finished frobbing howeih/Day-30-Strassen-multiplication
[INFO] frobbed toml for howeih/Day-30-Strassen-multiplication written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/howeih/Day-30-Strassen-multiplication/Cargo.toml
[INFO] crate howeih/Day-30-Strassen-multiplication 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] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking howeih/Day-30-Strassen-multiplication against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-1/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/howeih/Day-30-Strassen-multiplication:/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] 1ccee87c1f1b4c0809c7e839433e9cd79ce0453abf00b5c973275b000f3162a7
[INFO] running `"docker" "start" "-a" "1ccee87c1f1b4c0809c7e839433e9cd79ce0453abf00b5c973275b000f3162a7"`
[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking ndarray v0.11.2
[INFO] [stderr]     Checking strassen v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]  --> <::ndarray::free_functions::array macros>:6:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | $ ( [ $ ( [ $ ( $ x : expr ) , * $ ( , ) * ] ) , + $ ( , ) * ] ) , + $ ( , ) *
[INFO] [stderr]   |                                                                    - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 6 | vec ! [ $ ( [ $ ( [ $ ( $ x , ) * ] , ) * ] , ) * ] ) } } ; (
[INFO] [stderr]   |                         ^^^                     - 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]  --> <::ndarray::free_functions::array macros>:8:49
[INFO] [stderr]   |
[INFO] [stderr] 7 | $ ( [ $ ( $ x : expr ) , * $ ( , ) * ] ) , + $ ( , ) * ) => {
[INFO] [stderr]   |                                            - expected repetition
[INFO] [stderr] 8 | { $ crate :: Array2 :: from ( vec ! [ $ ( [ $ ( $ x , ) * ] , ) * ] ) } } ; (
[INFO] [stderr]   |                                                 ^^^             - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]  --> <::ndarray::free_functions::array macros>:6:25
[INFO] [stderr]   |
[INFO] [stderr] 2 | $ ( [ $ ( [ $ ( $ x : expr ) , * $ ( , ) * ] ) , + $ ( , ) * ] ) , + $ ( , ) *
[INFO] [stderr]   |                                                                    - expected repetition
[INFO] [stderr] ...
[INFO] [stderr] 6 | vec ! [ $ ( [ $ ( [ $ ( $ x , ) * ] , ) * ] , ) * ] ) } } ; (
[INFO] [stderr]   |                         ^^^                     - 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]  --> <::ndarray::free_functions::array macros>:8:49
[INFO] [stderr]   |
[INFO] [stderr] 7 | $ ( [ $ ( $ x : expr ) , * $ ( , ) * ] ) , + $ ( , ) * ) => {
[INFO] [stderr]   |                                            - expected repetition
[INFO] [stderr] 8 | { $ crate :: Array2 :: from ( vec ! [ $ ( [ $ ( $ x , ) * ] , ) * ] ) } } ; (
[INFO] [stderr]   |                                                 ^^^             - conflicting repetition
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `strassen`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `strassen`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "1ccee87c1f1b4c0809c7e839433e9cd79ce0453abf00b5c973275b000f3162a7"`
[INFO] running `"docker" "rm" "-f" "1ccee87c1f1b4c0809c7e839433e9cd79ce0453abf00b5c973275b000f3162a7"`
[INFO] [stdout] 1ccee87c1f1b4c0809c7e839433e9cd79ce0453abf00b5c973275b000f3162a7