Dec 19 20:13:05.836 INFO checking aulisius/alphabet_icon against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 20:13:05.837 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/aulisius/alphabet_icon:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 20:13:06.296 INFO [stdout] ae56c38e923198c9f97f2079f14c3304144e039fc5a3064b8cd9706151ace130
Dec 19 20:13:06.302 INFO running `"docker" "start" "-a" "ae56c38e923198c9f97f2079f14c3304144e039fc5a3064b8cd9706151ace130"`
Dec 19 20:13:08.059 INFO [stderr]     Checking cache_2q v0.8.4
Dec 19 20:13:08.059 INFO [stderr]     Checking svg v0.5.6
Dec 19 20:13:08.059 INFO [stderr]     Checking cached v0.4.1
Dec 19 20:13:08.088 INFO [stderr]     Checking simplesvg v0.4.0
Dec 19 20:13:08.114 INFO [stderr]    Compiling base64 v0.6.0
Dec 19 20:13:08.114 INFO [stderr]    Compiling base64 v0.9.2
Dec 19 20:13:08.114 INFO [stderr]    Compiling rocket_cors v0.2.0
Dec 19 20:13:08.115 INFO [stderr]    Compiling serde v1.0.74
Dec 19 20:13:10.509 INFO [stderr]    Compiling pear_codegen v0.0.20
Dec 19 20:13:11.695 INFO [stderr]     Checking unicase_serde v0.1.0
Dec 19 20:13:11.695 INFO [stderr]     Checking url_serde v0.2.0
Dec 19 20:13:11.771 INFO [stderr]     Checking hyper v0.10.13
Dec 19 20:13:12.944 INFO [stderr]    Compiling ring v0.11.0
Dec 19 20:13:18.260 INFO [stderr] error[E0599]: no variant named `concat` found for type `syntax::tokenstream::TokenStream` in the current scope
Dec 19 20:13:18.260 INFO [stderr]    --> /opt/crater/cargo-home/registry/src/github.com-1ecc6299db9ec823/pear_codegen-0.0.20/src/lib.rs:330:54
Dec 19 20:13:18.261 INFO [stderr]     |
Dec 19 20:13:18.261 INFO [stderr] 330 |                 mac.node.tts = ThinTokenStream::from(TokenStream::concat(streams));
Dec 19 20:13:18.261 INFO [stderr]     |                                                      ^^^^^^^^^^^^^^^^^^^ variant not found in `syntax::tokenstream::TokenStream`
Dec 19 20:13:18.261 INFO [stderr] 
Dec 19 20:13:18.460 INFO [stderr] error: aborting due to previous error
Dec 19 20:13:18.460 INFO [stderr] 
Dec 19 20:13:18.460 INFO [stderr] For more information about this error, try `rustc --explain E0599`.
Dec 19 20:13:18.560 INFO [stderr] error: Could not compile `pear_codegen`.
Dec 19 20:13:18.560 INFO [stderr] warning: build failed, waiting for other jobs to finish...
Dec 19 20:13:34.971 INFO [stderr] error: build failed
Dec 19 20:13:35.558 INFO running `"docker" "inspect" "ae56c38e923198c9f97f2079f14c3304144e039fc5a3064b8cd9706151ace130"`
Dec 19 20:13:35.830 INFO running `"docker" "rm" "-f" "ae56c38e923198c9f97f2079f14c3304144e039fc5a3064b8cd9706151ace130"`
Dec 19 20:13:36.188 INFO [stdout] ae56c38e923198c9f97f2079f14c3304144e039fc5a3064b8cd9706151ace130