[INFO] updating cached repository bittrance/cwppy
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/bittrance/cwppy
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/bittrance/cwppy" "work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bittrance/cwppy"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bittrance/cwppy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bittrance/cwppy" "work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/bittrance/cwppy"`
[INFO] [stderr] Cloning into 'work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/bittrance/cwppy'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5e51d15814cce81b7ebfc5352c5d7e1ed3745da5
[INFO] sha for GitHub repo bittrance/cwppy: 5e51d15814cce81b7ebfc5352c5d7e1ed3745da5
[INFO] validating manifest of bittrance/cwppy on toolchain master#c43d03a19f326f4a323569328cc501e86eb6d22e
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bittrance/cwppy on toolchain try#75eff020d0923c035c2fe220db4a0465cd847048
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing bittrance/cwppy
[INFO] finished frobbing bittrance/cwppy
[INFO] frobbed toml for bittrance/cwppy written to work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bittrance/cwppy/Cargo.toml
[INFO] started frobbing bittrance/cwppy
[INFO] finished frobbing bittrance/cwppy
[INFO] frobbed toml for bittrance/cwppy written to work/ex/pr-63565/sources/try#75eff020d0923c035c2fe220db4a0465cd847048/gh/bittrance/cwppy/Cargo.toml
[INFO] crate bittrance/cwppy already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+75eff020d0923c035c2fe220db4a0465cd847048-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking bittrance/cwppy against master#c43d03a19f326f4a323569328cc501e86eb6d22e for pr-63565
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63565/worker-4/master#c43d03a19f326f4a323569328cc501e86eb6d22e:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63565/sources/master#c43d03a19f326f4a323569328cc501e86eb6d22e/gh/bittrance/cwppy:/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" "+c43d03a19f326f4a323569328cc501e86eb6d22e-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 2f45339bc9221c1b15443acaa2b6c4e15d2dfaa4dad6345ff7601530a770f719
[INFO] running `"docker" "start" "-a" "2f45339bc9221c1b15443acaa2b6c4e15d2dfaa4dad6345ff7601530a770f719"`
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]    Compiling openssl-sys v0.9.30
[INFO] [stderr]     Checking coco v0.2.1
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking inotify v0.5.1
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking historian v3.0.4
[INFO] [stderr]    Compiling syn v0.13.10
[INFO] [stderr]    Compiling rusoto_core v0.32.0
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking hamcrest2 v0.2.3
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]    Compiling serde_derive v1.0.55
[INFO] [stderr]     Checking hyper v0.11.26
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]     Checking hyper-tls v0.1.3
[INFO] [stderr]     Checking rusoto_credential v0.11.0
[INFO] [stderr]    Compiling speculate v0.1.0
[INFO] [stderr] error[E0658]: use of unstable library feature 'unicode_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/speculate-0.1.0/src/block.rs:164:18
[INFO] [stderr]     |
[INFO] [stderr] 164 |     if !first_ch.is_xid_start() {
[INFO] [stderr]     |                  ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(unicode_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'unicode_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/speculate-0.1.0/src/block.rs:167:21
[INFO] [stderr]     |
[INFO] [stderr] 167 |         if first_ch.is_xid_continue() {
[INFO] [stderr]     |                     ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(unicode_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error[E0658]: use of unstable library feature 'unicode_internals'
[INFO] [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/speculate-0.1.0/src/block.rs:177:15
[INFO] [stderr]     |
[INFO] [stderr] 177 |         if ch.is_xid_continue() {
[INFO] [stderr]     |               ^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = help: add `#![feature(unicode_internals)]` to the crate attributes to enable
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0658`.
[INFO] [stderr] error: Could not compile `speculate`.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `"docker" "inspect" "2f45339bc9221c1b15443acaa2b6c4e15d2dfaa4dad6345ff7601530a770f719"`
[INFO] running `"docker" "rm" "-f" "2f45339bc9221c1b15443acaa2b6c4e15d2dfaa4dad6345ff7601530a770f719"`
[INFO] [stdout] 2f45339bc9221c1b15443acaa2b6c4e15d2dfaa4dad6345ff7601530a770f719