Dec 05 15:31:04.275 INFO checking chain-p2p-0.1.7 against try#1df97983eb2057dc6a8f7eb364e263b51ae23230 for pr-56481
Dec 05 15:31:04.275 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56481/worker-3/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-3/pr-56481/try#1df97983eb2057dc6a8f7eb364e263b51ae23230:/source:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +1df97983eb2057dc6a8f7eb364e263b51ae23230-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Dec 05 15:31:04.683 INFO [stdout] 1880c509ffc35eb2647a5a33c80607c6139716bf1e9ade4606c2d5cfcd26478d
Dec 05 15:31:04.688 INFO running `"docker" "start" "-a" "1880c509ffc35eb2647a5a33c80607c6139716bf1e9ade4606c2d5cfcd26478d"`
Dec 05 15:31:06.063 INFO [stderr] usermod: no changes
Dec 05 15:31:06.235 INFO [stderr]     Checking chain-p2p v0.1.7 (/source)
Dec 05 15:31:13.971 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:31:13.971 INFO [stderr]    --> src/p2p/mod.rs:112:9
Dec 05 15:31:13.971 INFO [stderr]     |
Dec 05 15:31:13.971 INFO [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
Dec 05 15:31:13.971 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:31:13.971 INFO [stderr]     |
Dec 05 15:31:13.971 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 15:31:13.971 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:31:13.971 INFO [stderr] 
Dec 05 15:31:13.971 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:31:13.971 INFO [stderr]    --> src/p2p/mod.rs:123:9
Dec 05 15:31:13.971 INFO [stderr]     |
Dec 05 15:31:13.971 INFO [stderr] 123 |         Conns::remove(conns_dis, index);
Dec 05 15:31:13.971 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:31:13.971 INFO [stderr]     |
Dec 05 15:31:13.971 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:31:13.971 INFO [stderr] 
Dec 05 15:31:13.979 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:31:13.979 INFO [stderr]    --> src/p2p/mod.rs:112:9
Dec 05 15:31:13.979 INFO [stderr]     |
Dec 05 15:31:13.979 INFO [stderr] 112 |         Conns::update(conns_update, index, conn_addr);
Dec 05 15:31:13.979 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:31:13.979 INFO [stderr]     |
Dec 05 15:31:13.979 INFO [stderr]     = note: #[warn(unused_must_use)] on by default
Dec 05 15:31:13.979 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:31:13.979 INFO [stderr] 
Dec 05 15:31:13.984 INFO [stderr] warning: unused `std::result::Result` that must be used
Dec 05 15:31:13.984 INFO [stderr]    --> src/p2p/mod.rs:123:9
Dec 05 15:31:13.984 INFO [stderr]     |
Dec 05 15:31:13.984 INFO [stderr] 123 |         Conns::remove(conns_dis, index);
Dec 05 15:31:13.984 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 05 15:31:13.984 INFO [stderr]     |
Dec 05 15:31:13.984 INFO [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
Dec 05 15:31:13.984 INFO [stderr] 
Dec 05 15:31:18.681 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.58s
Dec 05 15:31:18.691 INFO [stderr] su: No module specific data is present
Dec 05 15:31:19.412 INFO running `"docker" "inspect" "1880c509ffc35eb2647a5a33c80607c6139716bf1e9ade4606c2d5cfcd26478d"`
Dec 05 15:31:19.869 INFO running `"docker" "rm" "-f" "1880c509ffc35eb2647a5a33c80607c6139716bf1e9ade4606c2d5cfcd26478d"`
Dec 05 15:31:20.163 INFO [stdout] 1880c509ffc35eb2647a5a33c80607c6139716bf1e9ade4606c2d5cfcd26478d