Dec 18 12:37:48.665 INFO checking r2d2-mongodb-0.2.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 12:37:48.665 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/r2d2-mongodb/0.2.0:/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 12:37:48.882 INFO [stdout] f480e613aeb64b79a1072541890fb5c60f88586610e7601bf6bcf5a0faed54b6
Dec 18 12:37:48.886 INFO running `"docker" "start" "-a" "f480e613aeb64b79a1072541890fb5c60f88586610e7601bf6bcf5a0faed54b6"`
Dec 18 12:37:49.939 INFO [stderr]     Checking textnonce v0.6.4
Dec 18 12:37:50.448 INFO [stderr]     Checking mongodb v0.3.12
Dec 18 12:37:53.802 INFO [stderr]     Checking r2d2-mongodb v0.2.0 (/opt/crater/workdir)
Dec 18 12:37:55.652 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.87s
Dec 18 12:37:55.970 INFO running `"docker" "inspect" "f480e613aeb64b79a1072541890fb5c60f88586610e7601bf6bcf5a0faed54b6"`
Dec 18 12:37:56.112 INFO running `"docker" "rm" "-f" "f480e613aeb64b79a1072541890fb5c60f88586610e7601bf6bcf5a0faed54b6"`
Dec 18 12:37:56.247 INFO [stdout] f480e613aeb64b79a1072541890fb5c60f88586610e7601bf6bcf5a0faed54b6