Dec 19 19:47:28.915 INFO checking blogscot/blockchain against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 19:47:28.915 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-4/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/blogscot/blockchain:/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 19:47:29.344 INFO [stdout] 70c59a63166ddabb299ec1f9d77740b2d224620e19d01ebea4b0b911531b56fb
Dec 19 19:47:29.346 INFO running `"docker" "start" "-a" "70c59a63166ddabb299ec1f9d77740b2d224620e19d01ebea4b0b911531b56fb"`
Dec 19 19:47:30.956 INFO [stderr]    Compiling num-bigint v0.2.0
Dec 19 19:47:30.968 INFO [stderr]     Checking rust-crypto v0.2.36
Dec 19 19:47:30.968 INFO [stderr]     Checking chrono v0.4.6
Dec 19 19:47:39.385 INFO [stderr]     Checking blockchain v0.1.0 (/opt/crater/workdir)
Dec 19 19:47:39.924 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.07s
Dec 19 19:47:40.462 INFO running `"docker" "inspect" "70c59a63166ddabb299ec1f9d77740b2d224620e19d01ebea4b0b911531b56fb"`
Dec 19 19:47:40.818 INFO running `"docker" "rm" "-f" "70c59a63166ddabb299ec1f9d77740b2d224620e19d01ebea4b0b911531b56fb"`
Dec 19 19:47:41.122 INFO [stdout] 70c59a63166ddabb299ec1f9d77740b2d224620e19d01ebea4b0b911531b56fb