Dec 18 17:40:10.185 INFO checking chain-p2p-0.1.7 against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 17:40:10.185 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/reg/chain-p2p/0.1.7:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 17:40:10.629 INFO [stdout] 113956314af78880f3ff019d09993fcf6db43ed0b7352781d38eb5db3b3df42d
Dec 18 17:40:10.631 INFO running `"docker" "start" "-a" "113956314af78880f3ff019d09993fcf6db43ed0b7352781d38eb5db3b3df42d"`
Dec 18 17:40:12.426 INFO [stderr]     Checking chain-p2p v0.1.7 (/opt/crater/workdir)
Dec 18 17:40:14.484 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:14.484 INFO [stderr]    --> src/p2p/mod.rs:112:9
Dec 18 17:40:14.484 INFO [stderr]     |
Dec 18 17:40:14.484 INFO [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
Dec 18 17:40:14.484 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:14.484 INFO [stderr]     |
Dec 18 17:40:14.484 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 17:40:14.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:14.484 INFO [stderr] 
Dec 18 17:40:14.484 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:14.484 INFO [stderr]    --> src/p2p/mod.rs:123:9
Dec 18 17:40:14.484 INFO [stderr]     |
Dec 18 17:40:14.484 INFO [stderr] 123 |         Conns::remove(conns_dis, index);
Dec 18 17:40:14.484 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:14.484 INFO [stderr]     |
Dec 18 17:40:14.484 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:14.484 INFO [stderr] 
Dec 18 17:40:14.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:14.684 INFO [stderr]    --> src/p2p/mod.rs:112:9
Dec 18 17:40:14.684 INFO [stderr]     |
Dec 18 17:40:14.684 INFO [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
Dec 18 17:40:14.684 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:14.684 INFO [stderr]     |
Dec 18 17:40:14.684 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 17:40:14.684 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:14.684 INFO [stderr] 
Dec 18 17:40:14.684 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:14.684 INFO [stderr]    --> src/p2p/mod.rs:123:9
Dec 18 17:40:14.684 INFO [stderr]     |
Dec 18 17:40:14.684 INFO [stderr] 123 |         Conns::remove(conns_dis, index);
Dec 18 17:40:14.684 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:14.684 INFO [stderr]     |
Dec 18 17:40:14.684 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:14.684 INFO [stderr] 
Dec 18 17:40:15.896 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.65s
Dec 18 17:40:16.794 INFO running `"docker" "inspect" "113956314af78880f3ff019d09993fcf6db43ed0b7352781d38eb5db3b3df42d"`
Dec 18 17:40:17.076 INFO running `"docker" "rm" "-f" "113956314af78880f3ff019d09993fcf6db43ed0b7352781d38eb5db3b3df42d"`
Dec 18 17:40:17.512 INFO [stdout] 113956314af78880f3ff019d09993fcf6db43ed0b7352781d38eb5db3b3df42d