Dec 17 13:50:51.773 INFO checking thara/rust-tcp-echo-server against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 13:50:51.773 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-3/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/thara/rust-tcp-echo-server:/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 13:50:52.192 INFO [stdout] df2a40312452d7120d086dcd52e1d34ab419dbf5a7745b895da7a2ce34fac195
Dec 17 13:50:52.198 INFO running `"docker" "start" "-a" "df2a40312452d7120d086dcd52e1d34ab419dbf5a7745b895da7a2ce34fac195"`
Dec 17 13:50:54.076 INFO [stderr]     Checking nix v0.9.0
Dec 17 13:50:58.433 INFO [stderr]     Checking tcp-echo-server v0.1.0 (/opt/crater/workdir)
Dec 17 13:50:58.966 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.00s
Dec 17 13:50:59.892 INFO running `"docker" "inspect" "df2a40312452d7120d086dcd52e1d34ab419dbf5a7745b895da7a2ce34fac195"`
Dec 17 13:51:00.239 INFO running `"docker" "rm" "-f" "df2a40312452d7120d086dcd52e1d34ab419dbf5a7745b895da7a2ce34fac195"`
Dec 17 13:51:00.755 INFO [stdout] df2a40312452d7120d086dcd52e1d34ab419dbf5a7745b895da7a2ce34fac195