Dec 18 17:40:10.694 INFO checking chain-p2p-0.1.7 against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 17:40:10.694 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-4/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 17:40:11.380 INFO [stdout] 1eb1c49c5dcb7654a0e298c2ae95a02bbcadb59449c81252ecae255a3695f74f
Dec 18 17:40:11.383 INFO running `"docker" "start" "-a" "1eb1c49c5dcb7654a0e298c2ae95a02bbcadb59449c81252ecae255a3695f74f"`
Dec 18 17:40:13.229 INFO [stderr]     Checking chain-p2p v0.1.7 (/opt/crater/workdir)
Dec 18 17:40:15.160 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:15.160 INFO [stderr]    --> src/p2p/mod.rs:112:9
Dec 18 17:40:15.160 INFO [stderr]     |
Dec 18 17:40:15.160 INFO [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
Dec 18 17:40:15.160 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:15.160 INFO [stderr]     |
Dec 18 17:40:15.160 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 17:40:15.160 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:15.160 INFO [stderr] 
Dec 18 17:40:15.160 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:15.160 INFO [stderr]    --> src/p2p/mod.rs:123:9
Dec 18 17:40:15.160 INFO [stderr]     |
Dec 18 17:40:15.160 INFO [stderr] 123 |         Conns::remove(conns_dis, index);
Dec 18 17:40:15.160 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:15.160 INFO [stderr]     |
Dec 18 17:40:15.160 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:15.160 INFO [stderr] 
Dec 18 17:40:15.492 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:15.493 INFO [stderr]    --> src/p2p/mod.rs:112:9
Dec 18 17:40:15.493 INFO [stderr]     |
Dec 18 17:40:15.493 INFO [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
Dec 18 17:40:15.493 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:15.493 INFO [stderr]     |
Dec 18 17:40:15.493 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 18 17:40:15.493 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:15.493 INFO [stderr] 
Dec 18 17:40:15.493 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 18 17:40:15.493 INFO [stderr]    --> src/p2p/mod.rs:123:9
Dec 18 17:40:15.493 INFO [stderr]     |
Dec 18 17:40:15.493 INFO [stderr] 123 |         Conns::remove(conns_dis, index);
Dec 18 17:40:15.493 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 17:40:15.493 INFO [stderr]     |
Dec 18 17:40:15.493 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 18 17:40:15.493 INFO [stderr] 
Dec 18 17:40:16.448 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
Dec 18 17:40:17.064 INFO running `"docker" "inspect" "1eb1c49c5dcb7654a0e298c2ae95a02bbcadb59449c81252ecae255a3695f74f"`
Dec 18 17:40:17.358 INFO running `"docker" "rm" "-f" "1eb1c49c5dcb7654a0e298c2ae95a02bbcadb59449c81252ecae255a3695f74f"`
Dec 18 17:40:17.644 INFO [stdout] 1eb1c49c5dcb7654a0e298c2ae95a02bbcadb59449c81252ecae255a3695f74f