[INFO] cloning repository vivainio/rraf
[INFO] running `"git" "clone" "--bare" "git://github.com/vivainio/rraf.git" "work/cache/sources/gh/vivainio/rraf"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/vivainio/rraf'...
[INFO] running `"git" "clone" "work/cache/sources/gh/vivainio/rraf" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vivainio/rraf"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vivainio/rraf'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vivainio/rraf" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vivainio/rraf"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vivainio/rraf'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 17f17cc1460938718a7f70f50328664f6d9e0644
[INFO] sha for GitHub repo vivainio/rraf: 17f17cc1460938718a7f70f50328664f6d9e0644
[INFO] validating manifest of vivainio/rraf 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 vivainio/rraf 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 vivainio/rraf
[INFO] finished frobbing vivainio/rraf
[INFO] frobbed toml for vivainio/rraf written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vivainio/rraf/Cargo.toml
[INFO] started frobbing vivainio/rraf
[INFO] finished frobbing vivainio/rraf
[INFO] frobbed toml for vivainio/rraf written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vivainio/rraf/Cargo.toml
[INFO] crate vivainio/rraf 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]  Downloading crates ...
[INFO] [stderr]   Downloaded glob v0.2.10
[INFO] [stderr]   Downloaded log v0.3.1
[INFO] [stderr]   Downloaded regex v0.1.30
[INFO] [stderr]   Downloaded libc v0.1.8
[INFO] [stderr]   Downloaded getopts v0.2.11
[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 vivainio/rraf against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vivainio/rraf:/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] 38f18078fc333291ec56172d0a9e7d2bf7f7c354e68db188b41cf2326026e296
[INFO] running `"docker" "start" "-a" "38f18078fc333291ec56172d0a9e7d2bf7f7c354e68db188b41cf2326026e296"`
[INFO] [stderr]     Checking libc v0.1.8
[INFO] [stderr]     Checking glob v0.2.10
[INFO] [stderr]     Checking regex v0.1.30
[INFO] [stderr]     Checking walkdir v0.1.5
[INFO] [stderr]     Checking log v0.3.1
[INFO] [stderr]     Checking getopts v0.2.11
[INFO] [stderr] warning[E0503]: cannot use `state` because it was mutably borrowed
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/getopts-0.2.11/src/lib.rs:974:33
[INFO] [stderr]     |
[INFO] [stderr] 921 |     let mut machine = |cont: &mut bool, (i, c): (usize, char)| {
[INFO] [stderr]     |                       ---------------------------------------- borrow of `state` occurs here
[INFO] [stderr] ...
[INFO] [stderr] 925 |         state = match (state, whitespace, limit) {
[INFO] [stderr]     |                        ----- borrow occurs due to use of `state` in closure
[INFO] [stderr] ...
[INFO] [stderr] 974 |     while cont && match state { B | C => true, A => false } {
[INFO] [stderr]     |                                 ^ use of borrowed `state`
[INFO] [stderr] 975 |         machine(&mut cont, (fake_i, ' '));
[INFO] [stderr]     |         ------- borrow later used here
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this error has been downgraded to a warning for backwards compatibility with previous releases
[INFO] [stderr]     = warning: this represents potential undefined behavior in your code and this warning will become a hard error in the future
[INFO] [stderr]     = note: for more information, try `rustc --explain E0729`
[INFO] [stderr] 
[INFO] [stderr]     Checking rraf v1.0.1 (/opt/crater/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.49s
[INFO] running `"docker" "inspect" "38f18078fc333291ec56172d0a9e7d2bf7f7c354e68db188b41cf2326026e296"`
[INFO] running `"docker" "rm" "-f" "38f18078fc333291ec56172d0a9e7d2bf7f7c354e68db188b41cf2326026e296"`
[INFO] [stdout] 38f18078fc333291ec56172d0a9e7d2bf7f7c354e68db188b41cf2326026e296