[INFO] updating cached repository acmcarther/next_space_coop
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/acmcarther/next_space_coop
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/acmcarther/next_space_coop" "work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/acmcarther/next_space_coop"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/acmcarther/next_space_coop'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/acmcarther/next_space_coop" "work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/acmcarther/next_space_coop"`
[INFO] [stderr] Cloning into 'work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/acmcarther/next_space_coop'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 05828fa3281ff433093bbd1abadeed69503cc729
[INFO] sha for GitHub repo acmcarther/next_space_coop: 05828fa3281ff433093bbd1abadeed69503cc729
[INFO] validating manifest of acmcarther/next_space_coop on toolchain master#452087b4bf18cece2d52d7cd8c9147195e5404bf
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of acmcarther/next_space_coop on toolchain try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing acmcarther/next_space_coop
[INFO] finished frobbing acmcarther/next_space_coop
[INFO] frobbed toml for acmcarther/next_space_coop written to work/ex/pr-63247/sources/master#452087b4bf18cece2d52d7cd8c9147195e5404bf/gh/acmcarther/next_space_coop/Cargo.toml
[INFO] started frobbing acmcarther/next_space_coop
[INFO] finished frobbing acmcarther/next_space_coop
[INFO] frobbed toml for acmcarther/next_space_coop written to work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/acmcarther/next_space_coop/Cargo.toml
[INFO] crate acmcarther/next_space_coop already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+452087b4bf18cece2d52d7cd8c9147195e5404bf-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking acmcarther/next_space_coop against try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab for pr-63247
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63247/worker-0/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63247/sources/try#757dacae0a9f1b46b3ab58a1f1232332e8fc7dab/gh/acmcarther/next_space_coop:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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" "+757dacae0a9f1b46b3ab58a1f1232332e8fc7dab-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cd2068ef28efff42a3f281a7a73e227e576d4063538a1b968ea43fced1fa637e
[INFO] running `"docker" "start" "-a" "cd2068ef28efff42a3f281a7a73e227e576d4063538a1b968ea43fced1fa637e"`
[INFO] [stderr]     Checking either v1.0.3
[INFO] [stderr]     Checking error-chain v0.8.1
[INFO] [stderr]     Checking net2 v0.2.26
[INFO] [stderr]     Checking fern v0.3.5
[INFO] [stderr]     Checking capnp v0.7.5
[INFO] [stderr]     Checking aho-corasick v0.6.2
[INFO] [stderr]     Checking pulse v0.5.3
[INFO] [stderr]     Checking clap v2.20.3
[INFO] [stderr]     Checking ash v0.14.2
[INFO] [stderr] error: missing fragment specifier
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/clap-2.20.3/src/macros.rs:628:41
[INFO] [stderr]     |
[INFO] [stderr] 628 |     (@arg ($arg:expr) $modes:tt !$ident $($tail:tt)*) => {
[INFO] [stderr]     |                                         ^
[INFO] [stderr] 
[INFO] [stderr]     Checking itertools v0.5.9
[INFO] [stderr]     Checking specs v0.7.1
[INFO] [stderr]     Checking nalgebra v0.9.0
[INFO] [stderr]     Checking mio v0.6.4
[INFO] [stderr]     Checking regex v0.2.1
[INFO] [stderr] warning[E0502]: cannot borrow `*reff` as immutable because it is also borrowed as mutable
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/capnp-0.7.5/src/private/layout.rs:643:47
[INFO] [stderr]     |
[INFO] [stderr] 643 |         let ptr = try!(follow_fars(&mut reff, (*reff).target(), &mut segment));
[INFO] [stderr]     |                        ----------- ---------  ^^^^^^^ immutable borrow occurs here
[INFO] [stderr]     |                        |           |
[INFO] [stderr]     |                        |           mutable borrow occurs here
[INFO] [stderr]     |                        mutable borrow later used by call
[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 gaffer_udp v0.1.4
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: Could not compile `clap`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "cd2068ef28efff42a3f281a7a73e227e576d4063538a1b968ea43fced1fa637e"`
[INFO] running `"docker" "rm" "-f" "cd2068ef28efff42a3f281a7a73e227e576d4063538a1b968ea43fced1fa637e"`
[INFO] [stdout] cd2068ef28efff42a3f281a7a73e227e576d4063538a1b968ea43fced1fa637e