Dec 19 17:20:37.447 INFO checking equal-l2/rasppi-driver against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 17:20:37.447 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/equal-l2/rasppi-driver:/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 17:20:37.666 INFO [stdout] f2343a9dece666a075f8ba3a90da103ba55821bcf8a55e3612de918564ddb2eb
Dec 19 17:20:37.698 INFO running `"docker" "start" "-a" "f2343a9dece666a075f8ba3a90da103ba55821bcf8a55e3612de918564ddb2eb"`
Dec 19 17:20:38.719 INFO [stderr]    Compiling crossbeam-utils v0.2.2
Dec 19 17:20:38.721 INFO [stderr]    Compiling isatty v0.1.9
Dec 19 17:20:38.722 INFO [stderr]    Compiling rocket v0.3.17
Dec 19 17:20:38.729 INFO [stderr]     Checking rppal v0.8.0
Dec 19 17:20:38.732 INFO [stderr]    Compiling log v0.3.9
Dec 19 17:20:38.732 INFO [stderr]     Checking chan v0.1.23
Dec 19 17:20:38.732 INFO [stderr]    Compiling pear_codegen v0.0.20
Dec 19 17:20:38.961 INFO [stderr]    Compiling toml v0.4.7
Dec 19 17:20:39.957 INFO [stderr]     Checking hyper v0.10.13
Dec 19 17:20:39.957 INFO [stderr]    Compiling syn v0.15.7
Dec 19 17:20:39.966 INFO [stderr]     Checking chan-signal v0.3.2
Dec 19 17:20:40.317 INFO [stderr]    Compiling mime v0.2.6
Dec 19 17:20:40.716 INFO [stderr]    Compiling crossbeam-epoch v0.3.1
Dec 19 17:20:43.965 INFO [stderr]     Checking pbkdf2 v0.2.3
Dec 19 17:20:44.360 INFO [stderr] error[E0599]: no variant named `concat` found for type `syntax::tokenstream::TokenStream` in the current scope
Dec 19 17:20:44.360 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:330:54
Dec 19 17:20:44.360 INFO [stderr]     |
Dec 19 17:20:44.360 INFO [stderr] 330 |                 mac.node.tts = ThinTokenStream::from(TokenStream::concat(streams));
Dec 19 17:20:44.360 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::tokenstream::TokenStream`
Dec 19 17:20:44.360 INFO [stderr] 
Dec 19 17:20:44.512 INFO [stderr] error: aborting due to previous error
Dec 19 17:20:44.512 INFO [stderr] 
Dec 19 17:20:44.512 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 17:20:44.540 INFO [stderr] error: Could not compile `pear_codegen`.
Dec 19 17:20:44.540 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 17:21:05.397 INFO [stderr] error: build failed
Dec 19 17:21:06.148 INFO running `"docker" "inspect" "f2343a9dece666a075f8ba3a90da103ba55821bcf8a55e3612de918564ddb2eb"`
Dec 19 17:21:06.386 INFO running `"docker" "rm" "-f" "f2343a9dece666a075f8ba3a90da103ba55821bcf8a55e3612de918564ddb2eb"`
Dec 19 17:21:06.648 INFO [stdout] f2343a9dece666a075f8ba3a90da103ba55821bcf8a55e3612de918564ddb2eb