Dec 17 19:46:26.612 INFO checking mersinvald/example-tokio-cpupool against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 19:46:26.612 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/mersinvald/example-tokio-cpupool:/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 19:46:26.807 INFO [stdout] 7f72e111a5760495fcda89d35909b370e63d241a0148a174ea00841a33d82513
Dec 17 19:46:26.809 INFO running `"docker" "start" "-a" "7f72e111a5760495fcda89d35909b370e63d241a0148a174ea00841a33d82513"`
Dec 17 19:46:27.394 INFO [stderr]     Checking futures-cpupool v0.1.5
Dec 17 19:46:27.395 INFO [stderr]     Checking tokio-io v0.1.3
Dec 17 19:46:28.062 INFO [stderr]     Checking tokio-core v0.1.9
Dec 17 19:46:28.928 INFO [stderr]     Checking arsen_cpupool v0.1.0 (/opt/crater/workdir)
Dec 17 19:46:29.572 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.23s
Dec 17 19:46:30.286 INFO running `"docker" "inspect" "7f72e111a5760495fcda89d35909b370e63d241a0148a174ea00841a33d82513"`
Dec 17 19:46:30.612 INFO running `"docker" "rm" "-f" "7f72e111a5760495fcda89d35909b370e63d241a0148a174ea00841a33d82513"`
Dec 17 19:46:31.024 INFO [stdout] 7f72e111a5760495fcda89d35909b370e63d241a0148a174ea00841a33d82513