[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-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bittrance/cwppy"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/gh/bittrance/cwppy'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/bittrance/cwppy" "work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/gh/bittrance/cwppy"`
[INFO] [stderr] Cloning into 'work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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#435236b8877cdb98c82eaebfb7887782277265c5
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+435236b8877cdb98c82eaebfb7887782277265c5-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of bittrance/cwppy on toolchain try#b5c7f157c20453dde8d47371abe73b32351b4e7f
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-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-62849/sources/master#435236b8877cdb98c82eaebfb7887782277265c5/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-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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" "+435236b8877cdb98c82eaebfb7887782277265c5-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/crater/work/local/cargo-home/bin/cargo" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking bittrance/cwppy against try#b5c7f157c20453dde8d47371abe73b32351b4e7f for pr-62849
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-62849/worker-1/try#b5c7f157c20453dde8d47371abe73b32351b4e7f:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-62849/sources/try#b5c7f157c20453dde8d47371abe73b32351b4e7f/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" "+b5c7f157c20453dde8d47371abe73b32351b4e7f-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 3c994f1bf2be87cdcd334d26fa7ab11363125ee44f6dfa756e081089a5dc1a0d
[INFO] running `"docker" "start" "-a" "3c994f1bf2be87cdcd334d26fa7ab11363125ee44f6dfa756e081089a5dc1a0d"`
[INFO] [stderr]    Compiling pkg-config v0.3.11
[INFO] [stderr]    Compiling proc-macro2 v0.4.24
[INFO] [stderr]     Checking either v1.5.0
[INFO] [stderr]     Checking memchr v2.0.2
[INFO] [stderr]     Checking inotify-sys v0.1.2
[INFO] [stderr]     Checking crossbeam-utils v0.3.2
[INFO] [stderr]     Checking net2 v0.2.32
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking regex-syntax v0.6.4
[INFO] [stderr]     Checking bincode v0.9.2
[INFO] [stderr]     Checking bincode v1.0.0
[INFO] [stderr]     Checking xml-rs v0.7.0
[INFO] [stderr]     Checking bytes v0.4.7
[INFO] [stderr]     Checking tempdir v0.3.7
[INFO] [stderr]     Checking inotify v0.5.1
[INFO] [stderr]     Checking tokio-timer v0.2.3
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking crossbeam-epoch v0.4.1
[INFO] [stderr]     Checking coco v0.2.1
[INFO] [stderr]     Checking mio v0.6.14
[INFO] [stderr]    Compiling rusoto_core v0.32.0
[INFO] [stderr]     Checking tokio-io v0.1.6
[INFO] [stderr]     Checking regex v0.2.11
[INFO] [stderr]     Checking mime v0.3.7
[INFO] [stderr]     Checking chrono v0.4.2
[INFO] [stderr]     Checking num-bigint v0.1.44
[INFO] [stderr]     Checking crossbeam-deque v0.3.1
[INFO] [stderr]     Checking historian v3.0.4
[INFO] [stderr]     Checking sha2 v0.7.1
[INFO] [stderr]    Compiling openssl-sys v0.9.30
[INFO] [stderr]     Checking tokio-threadpool v0.1.3
[INFO] [stderr]    Compiling quote v0.6.10
[INFO] [stderr]     Checking pagecache v0.4.4
[INFO] [stderr]     Checking tokio-reactor v0.1.1
[INFO] [stderr]    Compiling syn v0.15.22
[INFO] [stderr]    Compiling syn v0.14.9
[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking tokio-fs v0.1.0
[INFO] [stderr]    Compiling openssl v0.9.24
[INFO] [stderr]     Checking tokio-udp v0.1.0
[INFO] [stderr]     Checking tokio-tcp v0.1.0
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]     Checking regex v1.1.0
[INFO] [stderr]     Checking tokio v0.1.6
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking hamcrest2 v0.2.3
[INFO] [stderr]     Checking sled v0.15.15
[INFO] [stderr]     Checking native-tls v0.1.5
[INFO] [stderr]     Checking tokio-tls v0.1.4
[INFO] [stderr]     Checking hyper v0.11.26
[INFO] [stderr]    Compiling synstructure v0.10.1
[INFO] [stderr]    Compiling failure_derive v0.1.3
[INFO] [stderr]    Compiling speculate v0.1.0
[INFO] [stderr]     Checking failure v0.1.3
[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" "3c994f1bf2be87cdcd334d26fa7ab11363125ee44f6dfa756e081089a5dc1a0d"`
[INFO] running `"docker" "rm" "-f" "3c994f1bf2be87cdcd334d26fa7ab11363125ee44f6dfa756e081089a5dc1a0d"`
[INFO] [stdout] 3c994f1bf2be87cdcd334d26fa7ab11363125ee44f6dfa756e081089a5dc1a0d