Dec 18 10:57:34.092 INFO checking sparkpost-0.5.2 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 10:57:34.092 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/sparkpost/0.5.2:/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 10:57:34.399 INFO [stdout] 6bcb4087a32a6237d2ca7e84524270dd4bfb0d11d901aefc381efffb3ec04804
Dec 18 10:57:34.401 INFO running `"docker" "start" "-a" "6bcb4087a32a6237d2ca7e84524270dd4bfb0d11d901aefc381efffb3ec04804"`
Dec 18 10:57:35.924 INFO [stderr]     Checking failure v0.1.3
Dec 18 10:57:35.924 INFO [stderr]     Checking sparkpost v0.5.2 (/opt/crater/workdir)
Dec 18 10:57:36.296 INFO [stderr]     Checking dotenv v0.13.0
Dec 18 10:57:41.096 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.49s
Dec 18 10:57:41.418 INFO running `"docker" "inspect" "6bcb4087a32a6237d2ca7e84524270dd4bfb0d11d901aefc381efffb3ec04804"`
Dec 18 10:57:41.534 INFO running `"docker" "rm" "-f" "6bcb4087a32a6237d2ca7e84524270dd4bfb0d11d901aefc381efffb3ec04804"`
Dec 18 10:57:41.638 INFO [stdout] 6bcb4087a32a6237d2ca7e84524270dd4bfb0d11d901aefc381efffb3ec04804