Dec 18 12:00:58.873 INFO checking rtfm-syntax-0.3.4 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:00:58.874 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/rtfm-syntax/0.3.4:/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 12:00:59.328 INFO [stdout] bd0636bd6594d223665c2dcf07c9106e1e914f73986fa11ba941863440ae3773
Dec 18 12:00:59.330 INFO running `"docker" "start" "-a" "bd0636bd6594d223665c2dcf07c9106e1e914f73986fa11ba941863440ae3773"`
Dec 18 12:01:00.929 INFO [stderr]    Compiling syn v0.15.23
Dec 18 12:01:13.736 INFO [stderr]    Compiling synstructure v0.10.1
Dec 18 12:01:17.842 INFO [stderr]    Compiling failure_derive v0.1.3
Dec 18 12:01:20.270 INFO [stderr]     Checking failure v0.1.3
Dec 18 12:01:20.933 INFO [stderr]     Checking rtfm-syntax v0.3.4 (/opt/crater/workdir)
Dec 18 12:01:22.512 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.72s
Dec 18 12:01:23.457 INFO running `"docker" "inspect" "bd0636bd6594d223665c2dcf07c9106e1e914f73986fa11ba941863440ae3773"`
Dec 18 12:01:23.792 INFO running `"docker" "rm" "-f" "bd0636bd6594d223665c2dcf07c9106e1e914f73986fa11ba941863440ae3773"`
Dec 18 12:01:24.076 INFO [stdout] bd0636bd6594d223665c2dcf07c9106e1e914f73986fa11ba941863440ae3773