Dec 18 10:50:06.533 INFO checking standalone-syn-0.13.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:50:06.534 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-7/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/standalone-syn/0.13.0:/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 10:50:06.980 INFO [stdout] 8e71ef24e41d7b317398373f97046d7bfa362fd08cae973a1cbfcf41fb6bb850
Dec 18 10:50:06.983 INFO running `"docker" "start" "-a" "8e71ef24e41d7b317398373f97046d7bfa362fd08cae973a1cbfcf41fb6bb850"`
Dec 18 10:50:08.892 INFO [stderr]     Checking proc-macro2 v0.2.3
Dec 18 10:50:09.703 INFO [stderr]     Checking standalone-quote v0.5.0
Dec 18 10:50:10.180 INFO [stderr]     Checking standalone-syn v0.13.0 (/opt/crater/workdir)
Dec 18 10:50:13.484 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.67s
Dec 18 10:50:13.990 INFO running `"docker" "inspect" "8e71ef24e41d7b317398373f97046d7bfa362fd08cae973a1cbfcf41fb6bb850"`
Dec 18 10:50:14.248 INFO running `"docker" "rm" "-f" "8e71ef24e41d7b317398373f97046d7bfa362fd08cae973a1cbfcf41fb6bb850"`
Dec 18 10:50:14.612 INFO [stdout] 8e71ef24e41d7b317398373f97046d7bfa362fd08cae973a1cbfcf41fb6bb850