Oct 13 16:59:09.165 INFO checking chain-p2p-0.1.7 against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 13 16:59:09.166 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-6/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-6/pr-54977/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/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 +4021bd0b3c5815b087d6db10ce461e7e4854ade7-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"`
Oct 13 16:59:09.552 INFO blam! 0790af783de3299397a2996d43edf5a99c8e8d48697b5186d8aaf1c24dff880f
Oct 13 16:59:09.554 INFO running `"docker" "start" "-a" "0790af783de3299397a2996d43edf5a99c8e8d48697b5186d8aaf1c24dff880f"`
Oct 13 16:59:10.971 INFO kablam! usermod: no changes
Oct 13 16:59:11.148 INFO kablam!     Checking chain-p2p v0.1.7 (/source)
Oct 13 16:59:18.880 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 16:59:18.880 INFO kablam!    --> src/p2p/mod.rs:112:9
Oct 13 16:59:18.880 INFO kablam!     |
Oct 13 16:59:18.880 INFO kablam! 112 |         Conns::update(conns_update, index, conn_addr);
Oct 13 16:59:18.880 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 16:59:18.880 INFO kablam!     |
Oct 13 16:59:18.880 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 16:59:18.880 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 16:59:18.880 INFO kablam! 
Oct 13 16:59:18.880 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 16:59:18.880 INFO kablam!    --> src/p2p/mod.rs:123:9
Oct 13 16:59:18.880 INFO kablam!     |
Oct 13 16:59:18.880 INFO kablam! 123 |         Conns::remove(conns_dis, index);
Oct 13 16:59:18.880 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 16:59:18.880 INFO kablam!     |
Oct 13 16:59:18.880 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 16:59:18.880 INFO kablam! 
Oct 13 16:59:18.960 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 16:59:18.960 INFO kablam!    --> src/p2p/mod.rs:112:9
Oct 13 16:59:18.960 INFO kablam!     |
Oct 13 16:59:18.960 INFO kablam! 112 |         Conns::update(conns_update, index, conn_addr);
Oct 13 16:59:18.960 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 16:59:18.960 INFO kablam!     |
Oct 13 16:59:18.960 INFO kablam!     = note: #[warn(unused_must_use)] on by default
Oct 13 16:59:18.960 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 16:59:18.960 INFO kablam! 
Oct 13 16:59:18.960 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 13 16:59:18.960 INFO kablam!    --> src/p2p/mod.rs:123:9
Oct 13 16:59:18.960 INFO kablam!     |
Oct 13 16:59:18.960 INFO kablam! 123 |         Conns::remove(conns_dis, index);
Oct 13 16:59:18.960 INFO kablam!     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 13 16:59:18.960 INFO kablam!     |
Oct 13 16:59:18.960 INFO kablam!     = note: this `Result` may be an `Err` variant, which should be handled
Oct 13 16:59:18.960 INFO kablam! 
Oct 13 16:59:23.217 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 12.21s
Oct 13 16:59:23.225 INFO kablam! su: No module specific data is present
Oct 13 16:59:24.071 INFO running `"docker" "rm" "-f" "0790af783de3299397a2996d43edf5a99c8e8d48697b5186d8aaf1c24dff880f"`
Oct 13 16:59:24.435 INFO blam! 0790af783de3299397a2996d43edf5a99c8e8d48697b5186d8aaf1c24dff880f