Dec 19 22:06:31.730 INFO checking Roger/now-rust-rocket-test against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 22:06:31.730 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/Roger/now-rust-rocket-test:/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 22:06:32.378 INFO [stdout] 311f4d7bed95aa768750676a0e53a73d1da5293a1ebbf82faff8290ad3a1f7e9
Dec 19 22:06:32.380 INFO running `"docker" "start" "-a" "311f4d7bed95aa768750676a0e53a73d1da5293a1ebbf82faff8290ad3a1f7e9"`
Dec 19 22:06:34.090 INFO [stderr]    Compiling log v0.4.5
Dec 19 22:06:34.113 INFO [stderr]    Compiling isatty v0.1.9
Dec 19 22:06:34.126 INFO [stderr]    Compiling memchr v2.1.0
Dec 19 22:06:34.128 INFO [stderr]    Compiling pear_codegen v0.0.20
Dec 19 22:06:34.128 INFO [stderr]    Compiling toml v0.4.8
Dec 19 22:06:34.128 INFO [stderr]    Compiling crossbeam-epoch v0.3.1
Dec 19 22:06:36.320 INFO [stderr]    Compiling log v0.3.9
Dec 19 22:06:38.149 INFO [stderr]    Compiling mime v0.2.6
Dec 19 22:06:38.151 INFO [stderr]    Compiling crossbeam-deque v0.2.0
Dec 19 22:06:39.428 INFO [stderr]    Compiling rayon-core v1.4.1
Dec 19 22:06:40.056 INFO [stderr]    Compiling hyper v0.10.13
Dec 19 22:06:40.196 INFO [stderr] error[E0599]: no variant named `concat` found for type `syntax::tokenstream::TokenStream` in the current scope
Dec 19 22:06:40.196 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:330:54
Dec 19 22:06:40.196 INFO [stderr]     |
Dec 19 22:06:40.196 INFO [stderr] 330 |                 mac.node.tts = ThinTokenStream::from(TokenStream::concat(streams));
Dec 19 22:06:40.196 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::tokenstream::TokenStream`
Dec 19 22:06:40.196 INFO [stderr] 
Dec 19 22:06:40.320 INFO [stderr] error: aborting due to previous error
Dec 19 22:06:40.321 INFO [stderr] 
Dec 19 22:06:40.321 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 22:06:40.321 INFO [stderr] error: Could not compile `pear_codegen`.
Dec 19 22:06:40.321 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 22:06:54.772 INFO [stderr] error: build failed
Dec 19 22:06:55.604 INFO running `"docker" "inspect" "311f4d7bed95aa768750676a0e53a73d1da5293a1ebbf82faff8290ad3a1f7e9"`
Dec 19 22:06:55.944 INFO running `"docker" "rm" "-f" "311f4d7bed95aa768750676a0e53a73d1da5293a1ebbf82faff8290ad3a1f7e9"`
Dec 19 22:06:56.292 INFO [stdout] 311f4d7bed95aa768750676a0e53a73d1da5293a1ebbf82faff8290ad3a1f7e9