[INFO] cloning repository AntonHermann/ls
[INFO] running `"git" "clone" "--bare" "git://github.com/AntonHermann/ls.git" "work/cache/sources/gh/AntonHermann/ls"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/AntonHermann/ls'...
[INFO] running `"git" "clone" "work/cache/sources/gh/AntonHermann/ls" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/AntonHermann/ls"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/AntonHermann/ls'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/AntonHermann/ls" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/AntonHermann/ls"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/AntonHermann/ls'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] d058ac2a9daef65295d3dee21746a9a6fc357926
[INFO] sha for GitHub repo AntonHermann/ls: d058ac2a9daef65295d3dee21746a9a6fc357926
[INFO] validating manifest of AntonHermann/ls 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 AntonHermann/ls 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 AntonHermann/ls
[INFO] finished frobbing AntonHermann/ls
[INFO] frobbed toml for AntonHermann/ls written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/AntonHermann/ls/Cargo.toml
[INFO] started frobbing AntonHermann/ls
[INFO] finished frobbing AntonHermann/ls
[INFO] frobbed toml for AntonHermann/ls written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/AntonHermann/ls/Cargo.toml
[INFO] crate AntonHermann/ls 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]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking AntonHermann/ls against try#8f81d0bf6baf07b92f1246696722485c4ca0b049 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-4/try#8f81d0bf6baf07b92f1246696722485c4ca0b049:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/AntonHermann/ls:/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] 2064acdc99862f253adb8280bcb54c4e23447a8f28e957cbef0bb636c52dd99d
[INFO] running `"docker" "start" "-a" "2064acdc99862f253adb8280bcb54c4e23447a8f28e957cbef0bb636c52dd99d"`
[INFO] [stderr]     Checking users v0.7.0
[INFO] [stderr]     Checking term_grid v0.1.7
[INFO] [stderr]     Checking structopt v0.2.10
[INFO] [stderr]     Checking ls v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] error: meta-variable repeats with different Kleene operator
[INFO] [stderr]  --> <::clap::macros::_clap_count_exprs macros>:2:38
[INFO] [stderr]   |
[INFO] [stderr] 1 | (  ) => { 0 } ; ( $ e : expr ) => { 1 } ; ( $ e : expr , $ ( $ es : expr ) , +
[INFO] [stderr]   |                                                                              - expected repetition
[INFO] [stderr] 2 | ) => { 1 + _clap_count_exprs ! ( $ ( $ es ) , * ) } ;
[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]  --> <::clap::macros::_clap_count_exprs macros>:2:38
[INFO] [stderr]   |
[INFO] [stderr] 1 | (  ) => { 0 } ; ( $ e : expr ) => { 1 } ; ( $ e : expr , $ ( $ es : expr ) , +
[INFO] [stderr]   |                                                                              - expected repetition
[INFO] [stderr] 2 | ) => { 1 + _clap_count_exprs ! ( $ ( $ es ) , * ) } ;
[INFO] [stderr]   |                                      ^^^^     - 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: Could not compile `ls`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `ls`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2064acdc99862f253adb8280bcb54c4e23447a8f28e957cbef0bb636c52dd99d"`
[INFO] running `"docker" "rm" "-f" "2064acdc99862f253adb8280bcb54c4e23447a8f28e957cbef0bb636c52dd99d"`
[INFO] [stdout] 2064acdc99862f253adb8280bcb54c4e23447a8f28e957cbef0bb636c52dd99d