Oct 12 12:40:31.491 INFO checking tacoda/router against try#4021bd0b3c5815b087d6db10ce461e7e4854ade7 for pr-54977
Oct 12 12:40:31.493 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-5/try#4021bd0b3c5815b087d6db10ce461e7e4854ade7:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-5/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 12 12:40:31.864 INFO blam! 976a16542781ae4ef7b70978e5582572a2fc77b5a6a80fb7dfbb97c6e0ff6a04
Oct 12 12:40:31.866 INFO running `"docker" "start" "-a" "976a16542781ae4ef7b70978e5582572a2fc77b5a6a80fb7dfbb97c6e0ff6a04"`
Oct 12 12:40:34.008 INFO kablam! usermod: no changes
Oct 12 12:40:34.072 INFO kablam!     Checking router v0.1.0 (/source)
Oct 12 12:40:34.376 INFO kablam! warning: unused import: `SocketAddrV4`
Oct 12 12:40:34.376 INFO kablam!  --> src/host.rs:1:40
Oct 12 12:40:34.376 INFO kablam!   |
Oct 12 12:40:34.376 INFO kablam! 1 | use std::net::{TcpListener, TcpStream, SocketAddrV4};
Oct 12 12:40:34.376 INFO kablam!   |                                        ^^^^^^^^^^^^
Oct 12 12:40:34.376 INFO kablam!   |
Oct 12 12:40:34.376 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 12:40:34.376 INFO kablam! 
Oct 12 12:40:34.376 INFO kablam! warning: unused import: `message::*`
Oct 12 12:40:34.376 INFO kablam!  --> src/main.rs:5:5
Oct 12 12:40:34.376 INFO kablam!   |
Oct 12 12:40:34.376 INFO kablam! 5 | use message::*;
Oct 12 12:40:34.376 INFO kablam!   |     ^^^^^^^^^^
Oct 12 12:40:34.376 INFO kablam! 
Oct 12 12:40:34.492 INFO kablam! warning: unused import: `SocketAddrV4`
Oct 12 12:40:34.492 INFO kablam!  --> src/host.rs:1:40
Oct 12 12:40:34.492 INFO kablam!   |
Oct 12 12:40:34.492 INFO kablam! 1 | use std::net::{TcpListener, TcpStream, SocketAddrV4};
Oct 12 12:40:34.492 INFO kablam!   |                                        ^^^^^^^^^^^^
Oct 12 12:40:34.492 INFO kablam!   |
Oct 12 12:40:34.492 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 12 12:40:34.492 INFO kablam! 
Oct 12 12:40:34.492 INFO kablam! warning: unused import: `message::*`
Oct 12 12:40:34.492 INFO kablam!  --> src/main.rs:5:5
Oct 12 12:40:34.492 INFO kablam!   |
Oct 12 12:40:34.492 INFO kablam! 5 | use message::*;
Oct 12 12:40:34.492 INFO kablam!   |     ^^^^^^^^^^
Oct 12 12:40:34.492 INFO kablam! 
Oct 12 12:40:34.568 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.568 INFO kablam!   --> src/host.rs:72:13
Oct 12 12:40:34.568 INFO kablam!    |
Oct 12 12:40:34.568 INFO kablam! 72 |             stream.write(&message.payload());
Oct 12 12:40:34.568 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.568 INFO kablam!    |
Oct 12 12:40:34.568 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 12:40:34.568 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.568 INFO kablam! 
Oct 12 12:40:34.568 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.568 INFO kablam!   --> src/host.rs:92:13
Oct 12 12:40:34.568 INFO kablam!    |
Oct 12 12:40:34.568 INFO kablam! 92 |             stream.read(&mut buffer);
Oct 12 12:40:34.568 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.568 INFO kablam!    |
Oct 12 12:40:34.568 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.568 INFO kablam! 
Oct 12 12:40:34.568 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.569 INFO kablam!   --> src/main.rs:10:5
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam! 10 |     host_a.bind("127.0.0.1:9001".to_owned());
Oct 12 12:40:34.569 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.569 INFO kablam! 
Oct 12 12:40:34.569 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.569 INFO kablam!   --> src/main.rs:11:5
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam! 11 |     host_b.bind("127.0.0.1:9002".to_owned());
Oct 12 12:40:34.569 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.569 INFO kablam! 
Oct 12 12:40:34.569 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.569 INFO kablam!   --> src/main.rs:12:5
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam! 12 |     host_a.connect('b', "127.0.0.1:9002".to_owned());
Oct 12 12:40:34.569 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.569 INFO kablam! 
Oct 12 12:40:34.569 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.569 INFO kablam!   --> src/main.rs:13:5
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam! 13 |     host_b.connect('a', "127.0.0.1:9001".to_owned());
Oct 12 12:40:34.569 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.569 INFO kablam!    |
Oct 12 12:40:34.569 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.569 INFO kablam! 
Oct 12 12:40:34.588 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.588 INFO kablam!   --> src/main.rs:14:5
Oct 12 12:40:34.588 INFO kablam!    |
Oct 12 12:40:34.588 INFO kablam! 14 |     host_a.send('b', "Hello, world!");
Oct 12 12:40:34.588 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.588 INFO kablam!    |
Oct 12 12:40:34.588 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.588 INFO kablam! 
Oct 12 12:40:34.744 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.744 INFO kablam!   --> src/host.rs:72:13
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam! 72 |             stream.write(&message.payload());
Oct 12 12:40:34.744 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 12 12:40:34.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.744 INFO kablam! 
Oct 12 12:40:34.744 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.744 INFO kablam!   --> src/host.rs:92:13
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam! 92 |             stream.read(&mut buffer);
Oct 12 12:40:34.744 INFO kablam!    |             ^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.744 INFO kablam! 
Oct 12 12:40:34.744 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.744 INFO kablam!   --> src/main.rs:10:5
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam! 10 |     host_a.bind("127.0.0.1:9001".to_owned());
Oct 12 12:40:34.744 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.744 INFO kablam! 
Oct 12 12:40:34.744 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.744 INFO kablam!   --> src/main.rs:11:5
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam! 11 |     host_b.bind("127.0.0.1:9002".to_owned());
Oct 12 12:40:34.744 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.744 INFO kablam! 
Oct 12 12:40:34.744 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.744 INFO kablam!   --> src/main.rs:12:5
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam! 12 |     host_a.connect('b', "127.0.0.1:9002".to_owned());
Oct 12 12:40:34.744 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.744 INFO kablam! 
Oct 12 12:40:34.744 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.744 INFO kablam!   --> src/main.rs:13:5
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.744 INFO kablam! 13 |     host_b.connect('a', "127.0.0.1:9001".to_owned());
Oct 12 12:40:34.744 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.744 INFO kablam!    |
Oct 12 12:40:34.745 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.745 INFO kablam! 
Oct 12 12:40:34.745 INFO kablam! warning: unused `std::result::Result` which must be used
Oct 12 12:40:34.745 INFO kablam!   --> src/main.rs:14:5
Oct 12 12:40:34.745 INFO kablam!    |
Oct 12 12:40:34.745 INFO kablam! 14 |     host_a.send('b', "Hello, world!");
Oct 12 12:40:34.745 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 12 12:40:34.745 INFO kablam!    |
Oct 12 12:40:34.745 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 12 12:40:34.745 INFO kablam! 
Oct 12 12:40:34.796 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 0.74s
Oct 12 12:40:34.796 INFO kablam! su: No module specific data is present
Oct 12 12:40:35.581 INFO running `"docker" "rm" "-f" "976a16542781ae4ef7b70978e5582572a2fc77b5a6a80fb7dfbb97c6e0ff6a04"`
Oct 12 12:40:35.840 INFO blam! 976a16542781ae4ef7b70978e5582572a2fc77b5a6a80fb7dfbb97c6e0ff6a04