Dec 19 12:43:53.186 INFO checking mfs/rust-df against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 12:43:53.186 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/mfs/rust-df:/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 12:43:53.453 INFO [stdout] 394b64578646c959502e476e7fe4ff923897f0fa9a4e011d1d8f637c1e7a7e4a
Dec 19 12:43:53.458 INFO running `"docker" "start" "-a" "394b64578646c959502e476e7fe4ff923897f0fa9a4e011d1d8f637c1e7a7e4a"`
Dec 19 12:43:54.134 INFO [stderr]     Checking atty v0.2.2
Dec 19 12:43:54.137 INFO [stderr]     Checking term_size v0.3.0
Dec 19 12:43:54.137 INFO [stderr]     Checking colored v1.4.0
Dec 19 12:43:54.416 INFO [stderr]     Checking clap v2.24.2
Dec 19 12:43:59.843 INFO [stderr]     Checking rdf v0.1.0 (/opt/crater/workdir)
Dec 19 12:44:00.657 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.61s
Dec 19 12:44:01.567 INFO running `"docker" "inspect" "394b64578646c959502e476e7fe4ff923897f0fa9a4e011d1d8f637c1e7a7e4a"`
Dec 19 12:44:01.722 INFO running `"docker" "rm" "-f" "394b64578646c959502e476e7fe4ff923897f0fa9a4e011d1d8f637c1e7a7e4a"`
Dec 19 12:44:01.874 INFO [stdout] 394b64578646c959502e476e7fe4ff923897f0fa9a4e011d1d8f637c1e7a7e4a