Oct 27 03:10:47.413 INFO checking jakobdalsgaard/rust-examples against try#19f01b935b91481fd445b16b533d2f87661bf12e for pr-55192-2
Oct 27 03:10:47.413 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-55192-2/worker-3/try#19f01b935b91481fd445b16b533d2f87661bf12e:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-3/pr-55192-2/try#19f01b935b91481fd445b16b533d2f87661bf12e:/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 +19f01b935b91481fd445b16b533d2f87661bf12e-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 27 03:10:47.783 INFO blam! 5394955b89524486156e6b8a257479be836bb07d626ac77629a9ede6eca82214
Oct 27 03:10:47.795 INFO running `"docker" "start" "-a" "5394955b89524486156e6b8a257479be836bb07d626ac77629a9ede6eca82214"`
Oct 27 03:10:49.009 INFO kablam! usermod: no changes
Oct 27 03:10:49.075 INFO kablam!     Checking log v0.3.6
Oct 27 03:10:49.291 INFO kablam!     Checking futures v0.1.10
Oct 27 03:10:51.435 INFO kablam!     Checking rust-examples v0.1.0 (/source)
Oct 27 03:10:52.027 INFO kablam! warning: variable does not need to be mutable
Oct 27 03:10:52.027 INFO kablam!  --> examples/stdchannels.rs:8:16
Oct 27 03:10:52.027 INFO kablam!   |
Oct 27 03:10:52.027 INFO kablam! 8 |   let (mut tx, mut rx) = sync_channel(0);
Oct 27 03:10:52.027 INFO kablam!   |                ----^^
Oct 27 03:10:52.027 INFO kablam!   |                |
Oct 27 03:10:52.027 INFO kablam!   |                help: remove this `mut`
Oct 27 03:10:52.027 INFO kablam!   |
Oct 27 03:10:52.027 INFO kablam!   = note: #[warn(unused_mut)] on by default
Oct 27 03:10:52.027 INFO kablam! 
Oct 27 03:10:52.027 INFO kablam! warning: variable does not need to be mutable
Oct 27 03:10:52.027 INFO kablam!  --> examples/stdchannels.rs:8:8
Oct 27 03:10:52.027 INFO kablam!   |
Oct 27 03:10:52.027 INFO kablam! 8 |   let (mut tx, mut rx) = sync_channel(0);
Oct 27 03:10:52.027 INFO kablam!   |        ----^^
Oct 27 03:10:52.027 INFO kablam!   |        |
Oct 27 03:10:52.027 INFO kablam!   |        help: remove this `mut`
Oct 27 03:10:52.027 INFO kablam! 
Oct 27 03:10:52.039 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 03:10:52.039 INFO kablam!   --> examples/stdchannels.rs:17:7
Oct 27 03:10:52.039 INFO kablam!    |
Oct 27 03:10:52.039 INFO kablam! 17 |       tx.send(7);
Oct 27 03:10:52.039 INFO kablam!    |       ^^^^^^^^^^^
Oct 27 03:10:52.039 INFO kablam!    |
Oct 27 03:10:52.039 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 03:10:52.039 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 03:10:52.039 INFO kablam! 
Oct 27 03:10:52.441 INFO kablam! warning: unused import: `std::thread`
Oct 27 03:10:52.441 INFO kablam!  --> examples/inc.rs:1:5
Oct 27 03:10:52.441 INFO kablam!   |
Oct 27 03:10:52.441 INFO kablam! 1 | use std::thread;
Oct 27 03:10:52.442 INFO kablam!   |     ^^^^^^^^^^^
Oct 27 03:10:52.443 INFO kablam!   |
Oct 27 03:10:52.443 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 03:10:52.443 INFO kablam! 
Oct 27 03:10:52.443 INFO kablam! warning: unused import: `std::sync::mpsc::channel`
Oct 27 03:10:52.443 INFO kablam!  --> examples/inc.rs:2:5
Oct 27 03:10:52.443 INFO kablam!   |
Oct 27 03:10:52.443 INFO kablam! 2 | use std::sync::mpsc::channel;
Oct 27 03:10:52.443 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 03:10:52.443 INFO kablam! 
Oct 27 03:10:52.670 INFO kablam! warning: unused import: `futures::sync::mpsc::Sender`
Oct 27 03:10:52.670 INFO kablam!  --> examples/futurechannels.rs:7:5
Oct 27 03:10:52.670 INFO kablam!   |
Oct 27 03:10:52.671 INFO kablam! 7 | use futures::sync::mpsc::Sender;
Oct 27 03:10:52.671 INFO kablam!   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 03:10:52.671 INFO kablam!   |
Oct 27 03:10:52.672 INFO kablam!   = note: #[warn(unused_imports)] on by default
Oct 27 03:10:52.672 INFO kablam! 
Oct 27 03:10:52.729 INFO kablam! warning: unused variable: `child2`
Oct 27 03:10:52.729 INFO kablam!   --> examples/futurechannels.rs:28:7
Oct 27 03:10:52.729 INFO kablam!    |
Oct 27 03:10:52.729 INFO kablam! 28 |   let child2 = thread::spawn(move || {
Oct 27 03:10:52.729 INFO kablam!    |       ^^^^^^ help: consider using `_child2` instead
Oct 27 03:10:52.735 INFO kablam!    |
Oct 27 03:10:52.735 INFO kablam!    = note: #[warn(unused_variables)] on by default
Oct 27 03:10:52.735 INFO kablam! 
Oct 27 03:10:52.735 INFO kablam! warning: unused variable: `rest`
Oct 27 03:10:52.735 INFO kablam!   --> examples/futurechannels.rs:66:14
Oct 27 03:10:52.735 INFO kablam!    |
Oct 27 03:10:52.735 INFO kablam! 66 |   let (item, rest) = rest.into_future().wait().ok().unwrap();
Oct 27 03:10:52.735 INFO kablam!    |              ^^^^ help: consider using `_rest` instead
Oct 27 03:10:52.735 INFO kablam! 
Oct 27 03:10:52.771 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 03:10:52.771 INFO kablam!   --> examples/futurechannels.rs:14:5
Oct 27 03:10:52.771 INFO kablam!    |
Oct 27 03:10:52.771 INFO kablam! 14 | /     receiver.map(|i| {
Oct 27 03:10:52.771 INFO kablam! 15 | |       println!("got: {}", i);
Oct 27 03:10:52.771 INFO kablam! 16 | |     }).wait();
Oct 27 03:10:52.771 INFO kablam!    | |______________^
Oct 27 03:10:52.771 INFO kablam!    |
Oct 27 03:10:52.771 INFO kablam!    = note: #[warn(unused_must_use)] on by default
Oct 27 03:10:52.771 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 03:10:52.771 INFO kablam! 
Oct 27 03:10:52.771 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 03:10:52.771 INFO kablam!   --> examples/futurechannels.rs:30:5
Oct 27 03:10:52.771 INFO kablam!    |
Oct 27 03:10:52.771 INFO kablam! 30 |     sender2.send(1).and_then(|tx| { println!("sending 2"); tx.send(2) } ).wait();
Oct 27 03:10:52.771 INFO kablam!    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 03:10:52.771 INFO kablam!    |
Oct 27 03:10:52.771 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 03:10:52.771 INFO kablam! 
Oct 27 03:10:52.771 INFO kablam! warning: unused `std::result::Result` that must be used
Oct 27 03:10:52.771 INFO kablam!   --> examples/futurechannels.rs:49:3
Oct 27 03:10:52.771 INFO kablam!    |
Oct 27 03:10:52.771 INFO kablam! 49 |   sender3.send(5).and_then(|tx| tx.send(6)).wait();
Oct 27 03:10:52.771 INFO kablam!    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Oct 27 03:10:52.771 INFO kablam!    |
Oct 27 03:10:52.771 INFO kablam!    = note: this `Result` may be an `Err` variant, which should be handled
Oct 27 03:10:52.771 INFO kablam! 
Oct 27 03:10:52.791 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 3.76s
Oct 27 03:10:52.793 INFO kablam! su: No module specific data is present
Oct 27 03:10:53.059 INFO running `"docker" "rm" "-f" "5394955b89524486156e6b8a257479be836bb07d626ac77629a9ede6eca82214"`
Oct 27 03:10:53.187 INFO blam! 5394955b89524486156e6b8a257479be836bb07d626ac77629a9ede6eca82214