Dec 19 21:43:43.750 INFO checking TchupaKabra/tokio-mpsc-test against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 21:43:43.751 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-1/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/TchupaKabra/tokio-mpsc-test:/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 21:43:44.370 INFO [stdout] 3c379de84cbc69bfbe02692cb604e0cb7f1c1c8e7fe12eba87ea3e0811276107
Dec 19 21:43:44.372 INFO running `"docker" "start" "-a" "3c379de84cbc69bfbe02692cb604e0cb7f1c1c8e7fe12eba87ea3e0811276107"`
Dec 19 21:43:46.604 INFO [stderr]     Checking tokio-core v0.1.17
Dec 19 21:43:48.546 INFO [stderr]     Checking futures-spawn v0.1.1
Dec 19 21:43:49.614 INFO [stderr]     Checking futures-threadpool v0.1.0
Dec 19 21:43:50.434 INFO [stderr]     Checking mpsc v0.1.0 (/opt/crater/workdir)
Dec 19 21:43:51.404 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.97s
Dec 19 21:43:52.182 INFO running `"docker" "inspect" "3c379de84cbc69bfbe02692cb604e0cb7f1c1c8e7fe12eba87ea3e0811276107"`
Dec 19 21:43:52.412 INFO running `"docker" "rm" "-f" "3c379de84cbc69bfbe02692cb604e0cb7f1c1c8e7fe12eba87ea3e0811276107"`
Dec 19 21:43:52.694 INFO [stdout] 3c379de84cbc69bfbe02692cb604e0cb7f1c1c8e7fe12eba87ea3e0811276107