Dec 17 19:27:47.905 INFO checking mmueller/advent2016 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:27:47.905 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/mmueller/advent2016:/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 19:27:48.463 INFO [stdout] 868639753fe3abf26fc58ad11576fa66e12cba47f8a851e222a67eaf81ea80fe
Dec 17 19:27:48.465 INFO running `"docker" "start" "-a" "868639753fe3abf26fc58ad11576fa66e12cba47f8a851e222a67eaf81ea80fe"`
Dec 17 19:27:50.869 INFO [stderr]    Compiling backtrace v0.3.0
Dec 17 19:27:50.881 INFO [stderr]    Compiling rust-crypto v0.2.36
Dec 17 19:27:52.427 INFO [stderr]     Checking error-chain v0.7.1
Dec 17 19:27:57.632 INFO [stderr]     Checking advent2016 v0.1.0 (/opt/crater/workdir)
Dec 17 19:27:58.840 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 8.07s
Dec 17 19:27:59.770 INFO running `"docker" "inspect" "868639753fe3abf26fc58ad11576fa66e12cba47f8a851e222a67eaf81ea80fe"`
Dec 17 19:28:00.082 INFO running `"docker" "rm" "-f" "868639753fe3abf26fc58ad11576fa66e12cba47f8a851e222a67eaf81ea80fe"`
Dec 17 19:28:00.432 INFO [stdout] 868639753fe3abf26fc58ad11576fa66e12cba47f8a851e222a67eaf81ea80fe