Dec 19 09:16:44.901 INFO checking scott113341/incident_channel against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 09:16:44.901 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/scott113341/incident_channel:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 09:16:45.464 INFO [stdout] a0b9eb9aa927bee7240d64a8578832ac304549e3ea5a500c4bbb64c60dadc3d3
Dec 19 09:16:45.466 INFO running `"docker" "start" "-a" "a0b9eb9aa927bee7240d64a8578832ac304549e3ea5a500c4bbb64c60dadc3d3"`
Dec 19 09:16:48.176 INFO [stderr]    Compiling openssl v0.10.12
Dec 19 09:16:48.178 INFO [stderr]     Checking isatty v0.1.9
Dec 19 09:16:48.204 INFO [stderr]    Compiling pear_codegen v0.0.20
Dec 19 09:16:48.204 INFO [stderr]    Compiling rocket v0.3.17
Dec 19 09:16:48.204 INFO [stderr]    Compiling rocket_codegen v0.3.17
Dec 19 09:16:48.204 INFO [stderr]     Checking mio v0.6.16
Dec 19 09:16:48.204 INFO [stderr]    Compiling openssl-sys v0.9.36
Dec 19 09:16:48.400 INFO [stderr]     Checking encoding_rs v0.8.10
Dec 19 09:16:50.253 INFO [stderr]    Compiling memchr v2.1.0
Dec 19 09:16:50.269 INFO [stderr]     Checking tokio-io v0.1.9
Dec 19 09:16:51.022 INFO [stderr]    Compiling native-tls v0.2.1
Dec 19 09:16:51.138 INFO [stderr]    Compiling openssl v0.9.24
Dec 19 09:16:51.184 INFO [stderr]    Compiling toml v0.4.8
Dec 19 09:16:51.205 INFO [stderr]    Compiling crossbeam-epoch v0.3.1
Dec 19 09:16:51.337 INFO [stderr]     Checking mime v0.3.9
Dec 19 09:16:56.678 INFO [stderr]     Checking serde_urlencoded v0.5.3
Dec 19 09:16:56.694 INFO [stderr]    Compiling hyper v0.10.13
Dec 19 09:16:56.733 INFO [stderr]     Checking tokio-codec v0.1.1
Dec 19 09:16:56.820 INFO [stderr]     Checking h2 v0.1.12
Dec 19 09:16:58.478 INFO [stderr]    Compiling crossbeam-deque v0.2.0
Dec 19 09:16:59.318 INFO [stderr]     Checking tokio-threadpool v0.1.7
Dec 19 09:17:03.304 INFO [stderr] error[E0599]: no variant named `concat` found for type `syntax::tokenstream::TokenStream` in the current scope
Dec 19 09:17:03.304 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:330:54
Dec 19 09:17:03.304 INFO [stderr]     |
Dec 19 09:17:03.304 INFO [stderr] 330 |                 mac.node.tts = ThinTokenStream::from(TokenStream::concat(streams));
Dec 19 09:17:03.304 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::tokenstream::TokenStream`
Dec 19 09:17:03.304 INFO [stderr] 
Dec 19 09:17:03.644 INFO [stderr] error: aborting due to previous error
Dec 19 09:17:03.645 INFO [stderr] 
Dec 19 09:17:03.652 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 09:17:03.761 INFO [stderr] error: Could not compile `pear_codegen`.
Dec 19 09:17:03.762 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 09:17:16.068 INFO [stderr] error: build failed
Dec 19 09:17:16.728 INFO running `"docker" "inspect" "a0b9eb9aa927bee7240d64a8578832ac304549e3ea5a500c4bbb64c60dadc3d3"`
Dec 19 09:17:16.972 INFO running `"docker" "rm" "-f" "a0b9eb9aa927bee7240d64a8578832ac304549e3ea5a500c4bbb64c60dadc3d3"`
Dec 19 09:17:17.348 INFO [stdout] a0b9eb9aa927bee7240d64a8578832ac304549e3ea5a500c4bbb64c60dadc3d3