Dec 19 12:28:10.808 INFO checking monishknair/rocket-quickstart against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:28:10.808 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/monishknair/rocket-quickstart:/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 12:28:11.026 INFO [stdout] 604f9333e6db0ebaa0889bf3a2bbb7ffcb900a6d0da12fe2380ab3296db2878d
Dec 19 12:28:11.034 INFO running `"docker" "start" "-a" "604f9333e6db0ebaa0889bf3a2bbb7ffcb900a6d0da12fe2380ab3296db2878d"`
Dec 19 12:28:12.536 INFO [stderr]    Compiling serde v1.0.76
Dec 19 12:28:12.539 INFO [stderr]    Compiling isatty v0.1.8
Dec 19 12:28:12.539 INFO [stderr]    Compiling base64 v0.9.2
Dec 19 12:28:12.540 INFO [stderr]    Compiling pear_codegen v0.0.20
Dec 19 12:28:12.541 INFO [stderr]    Compiling ring v0.11.0
Dec 19 12:28:16.000 INFO [stderr] error[E0599]: no variant named `concat` found for type `syntax::tokenstream::TokenStream` in the current scope
Dec 19 12:28:16.000 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:330:54
Dec 19 12:28:16.000 INFO [stderr]     |
Dec 19 12:28:16.000 INFO [stderr] 330 |                 mac.node.tts = ThinTokenStream::from(TokenStream::concat(streams));
Dec 19 12:28:16.000 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::tokenstream::TokenStream`
Dec 19 12:28:16.000 INFO [stderr] 
Dec 19 12:28:16.036 INFO [stderr] error: aborting due to previous error
Dec 19 12:28:16.036 INFO [stderr] 
Dec 19 12:28:16.036 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 12:28:16.048 INFO [stderr] error: Could not compile `pear_codegen`.
Dec 19 12:28:16.048 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 12:28:27.304 INFO [stderr] error: build failed
Dec 19 12:28:27.868 INFO running `"docker" "inspect" "604f9333e6db0ebaa0889bf3a2bbb7ffcb900a6d0da12fe2380ab3296db2878d"`
Dec 19 12:28:28.120 INFO running `"docker" "rm" "-f" "604f9333e6db0ebaa0889bf3a2bbb7ffcb900a6d0da12fe2380ab3296db2878d"`
Dec 19 12:28:28.456 INFO [stdout] 604f9333e6db0ebaa0889bf3a2bbb7ffcb900a6d0da12fe2380ab3296db2878d