Dec 17 20:07:41.214 INFO checking marshallpierce/base64-serde against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 20:07:41.214 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/gh/marshallpierce/base64-serde:/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 17 20:07:41.380 INFO [stdout] 56cbad6b8ec3c54ee7e43ccf24359fe76098d5744bcafcd75a68b21a5580c32d
Dec 17 20:07:41.382 INFO running `"docker" "start" "-a" "56cbad6b8ec3c54ee7e43ccf24359fe76098d5744bcafcd75a68b21a5580c32d"`
Dec 17 20:07:42.157 INFO [stderr]     Checking base64 v0.9.0
Dec 17 20:07:42.157 INFO [stderr]     Checking serde_json v1.0.4
Dec 17 20:07:42.706 INFO [stderr]     Checking base64-serde v0.3.0 (/opt/crater/workdir)
Dec 17 20:07:44.484 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.39s
Dec 17 20:07:45.174 INFO running `"docker" "inspect" "56cbad6b8ec3c54ee7e43ccf24359fe76098d5744bcafcd75a68b21a5580c32d"`
Dec 17 20:07:45.406 INFO running `"docker" "rm" "-f" "56cbad6b8ec3c54ee7e43ccf24359fe76098d5744bcafcd75a68b21a5580c32d"`
Dec 17 20:07:45.660 INFO [stdout] 56cbad6b8ec3c54ee7e43ccf24359fe76098d5744bcafcd75a68b21a5580c32d