Dec 18 13:41:40.957 INFO checking netns-0.1.0 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 13:41:40.957 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-1/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/reg/netns/0.1.0:/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 18 13:41:41.238 INFO [stdout] fba5e25c9e41c71c8359bd9842fefd057cd512d0088ec7f0fb31d7c927cb744c
Dec 18 13:41:41.240 INFO running `"docker" "start" "-a" "fba5e25c9e41c71c8359bd9842fefd057cd512d0088ec7f0fb31d7c927cb744c"`
Dec 18 13:41:41.864 INFO [stderr]     Checking netns v0.1.0 (/opt/crater/workdir)
Dec 18 13:41:42.556 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 13:41:42.556 INFO [stderr]   --> examples/basic.rs:11:3
Dec 18 13:41:42.556 INFO [stderr]    |
Dec 18 13:41:42.556 INFO [stderr] 11 |         NetNS::set(temp);
Dec 18 13:41:42.556 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^
Dec 18 13:41:42.556 INFO [stderr]    |
Dec 18 13:41:42.556 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Dec 18 13:41:42.556 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 13:41:42.556 INFO [stderr] 
Dec 18 13:41:42.580 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Dec 18 13:41:43.060 INFO running `"docker" "inspect" "fba5e25c9e41c71c8359bd9842fefd057cd512d0088ec7f0fb31d7c927cb744c"`
Dec 18 13:41:43.282 INFO running `"docker" "rm" "-f" "fba5e25c9e41c71c8359bd9842fefd057cd512d0088ec7f0fb31d7c927cb744c"`
Dec 18 13:41:43.480 INFO [stdout] fba5e25c9e41c71c8359bd9842fefd057cd512d0088ec7f0fb31d7c927cb744c