Dec 19 06:56:56.461 INFO checking tobyjsullivan/tokio_hello_world against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 06:56:56.461 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-6/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/tobyjsullivan/tokio_hello_world:/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 06:56:56.952 INFO [stdout] 3e97a2d5009f1691613d5d5992feec2cdb966cf1744f2c0fa000d3b966e71cb3
Dec 19 06:56:56.960 INFO running `"docker" "start" "-a" "3e97a2d5009f1691613d5d5992feec2cdb966cf1744f2c0fa000d3b966e71cb3"`
Dec 19 06:56:58.696 INFO [stderr]     Checking mio v0.6.13
Dec 19 06:56:58.700 INFO [stderr]     Checking tokio-io v0.1.5
Dec 19 06:57:00.435 INFO [stderr]     Checking tokio v0.1.1
Dec 19 06:57:01.356 INFO [stderr]     Checking tokio_hello_world v0.1.0 (/opt/crater/workdir)
Dec 19 06:57:01.999 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.37s
Dec 19 06:57:03.299 INFO running `"docker" "inspect" "3e97a2d5009f1691613d5d5992feec2cdb966cf1744f2c0fa000d3b966e71cb3"`
Dec 19 06:57:03.556 INFO running `"docker" "rm" "-f" "3e97a2d5009f1691613d5d5992feec2cdb966cf1744f2c0fa000d3b966e71cb3"`
Dec 19 06:57:03.916 INFO [stdout] 3e97a2d5009f1691613d5d5992feec2cdb966cf1744f2c0fa000d3b966e71cb3