Dec 17 19:55:56.203 INFO checking mawis/try-future against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:55:56.203 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/mawis/try-future:/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 19:55:56.414 INFO [stdout] a1658e422f07cfec06113128eebf4690d37602fd03c0ca8b38c7a0ac3c716435
Dec 17 19:55:56.417 INFO running `"docker" "start" "-a" "a1658e422f07cfec06113128eebf4690d37602fd03c0ca8b38c7a0ac3c716435"`
Dec 17 19:55:57.127 INFO [stderr]     Checking bytes v0.4.5
Dec 17 19:55:57.747 INFO [stderr]     Checking tokio-io v0.1.4
Dec 17 19:55:58.378 INFO [stderr]     Checking tokio-core v0.1.10
Dec 17 19:55:59.240 INFO [stderr]     Checking try-future v0.1.0 (/opt/crater/workdir)
Dec 17 19:55:59.505 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.40s
Dec 17 19:55:59.940 INFO running `"docker" "inspect" "a1658e422f07cfec06113128eebf4690d37602fd03c0ca8b38c7a0ac3c716435"`
Dec 17 19:56:00.192 INFO running `"docker" "rm" "-f" "a1658e422f07cfec06113128eebf4690d37602fd03c0ca8b38c7a0ac3c716435"`
Dec 17 19:56:00.456 INFO [stdout] a1658e422f07cfec06113128eebf4690d37602fd03c0ca8b38c7a0ac3c716435