Nov 28 03:37:01.485 INFO checking jakobdalsgaard/rust-examples against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 03:37:01.487 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-1/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-1/pr-56074/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/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 +db42d4dad33013eba11ef37342ad9f614e5652b8-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"`
Nov 28 03:37:01.813 INFO [stdout] efca32503caf35779d3dd326a4ba15b6e7456626dee93f3428119d84469ab24e
Nov 28 03:37:01.821 INFO running `"docker" "start" "-a" "efca32503caf35779d3dd326a4ba15b6e7456626dee93f3428119d84469ab24e"`
Nov 28 03:37:02.828 INFO [stderr] usermod: no changes
Nov 28 03:37:02.892 INFO [stderr]     Checking log v0.3.6
Nov 28 03:37:03.203 INFO [stderr]     Checking futures v0.1.10
Nov 28 03:37:05.525 INFO [stderr]     Checking rust-examples v0.1.0 (/source)
Nov 28 03:37:06.280 INFO [stderr] warning: unused import: `futures::sync::mpsc::Sender`
Nov 28 03:37:06.280 INFO [stderr]  --> examples/futurechannels.rs:7:5
Nov 28 03:37:06.284 INFO [stderr]   |
Nov 28 03:37:06.284 INFO [stderr] 7 | use futures::sync::mpsc::Sender;
Nov 28 03:37:06.284 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:37:06.284 INFO [stderr]   |
Nov 28 03:37:06.284 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:37:06.284 INFO [stderr] 
Nov 28 03:37:06.364 INFO [stderr] warning: unused variable: `child2`
Nov 28 03:37:06.364 INFO [stderr]   --> examples/futurechannels.rs:28:7
Nov 28 03:37:06.364 INFO [stderr]    |
Nov 28 03:37:06.364 INFO [stderr] 28 |   let child2 = thread::spawn(move || {
Nov 28 03:37:06.364 INFO [stderr]    |       ^^^^^^ help: consider using `_child2` instead
Nov 28 03:37:06.364 INFO [stderr]    |
Nov 28 03:37:06.364 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 28 03:37:06.364 INFO [stderr] 
Nov 28 03:37:06.364 INFO [stderr] warning: unused variable: `rest`
Nov 28 03:37:06.364 INFO [stderr]   --> examples/futurechannels.rs:66:14
Nov 28 03:37:06.364 INFO [stderr]    |
Nov 28 03:37:06.364 INFO [stderr] 66 |   let (item, rest) = rest.into_future().wait().ok().unwrap();
Nov 28 03:37:06.364 INFO [stderr]    |              ^^^^ help: consider using `_rest` instead
Nov 28 03:37:06.364 INFO [stderr] 
Nov 28 03:37:06.451 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:37:06.451 INFO [stderr]   --> examples/futurechannels.rs:14:5
Nov 28 03:37:06.452 INFO [stderr]    |
Nov 28 03:37:06.452 INFO [stderr] 14 | /     receiver.map(|i| {
Nov 28 03:37:06.452 INFO [stderr] 15 | |       println!("got: {}", i);
Nov 28 03:37:06.452 INFO [stderr] 16 | |     }).wait();
Nov 28 03:37:06.453 INFO [stderr]    | |______________^
Nov 28 03:37:06.453 INFO [stderr]    |
Nov 28 03:37:06.453 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 03:37:06.453 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:37:06.454 INFO [stderr] 
Nov 28 03:37:06.454 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:37:06.454 INFO [stderr]   --> examples/futurechannels.rs:30:5
Nov 28 03:37:06.454 INFO [stderr]    |
Nov 28 03:37:06.455 INFO [stderr] 30 |     sender2.send(1).and_then(|tx| { println!("sending 2"); tx.send(2) } ).wait();
Nov 28 03:37:06.455 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:37:06.455 INFO [stderr]    |
Nov 28 03:37:06.455 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:37:06.456 INFO [stderr] 
Nov 28 03:37:06.456 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:37:06.456 INFO [stderr]   --> examples/futurechannels.rs:49:3
Nov 28 03:37:06.456 INFO [stderr]    |
Nov 28 03:37:06.457 INFO [stderr] 49 |   sender3.send(5).and_then(|tx| tx.send(6)).wait();
Nov 28 03:37:06.457 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:37:06.457 INFO [stderr]    |
Nov 28 03:37:06.457 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:37:06.464 INFO [stderr] 
Nov 28 03:37:06.528 INFO [stderr] warning: unused import: `std::thread`
Nov 28 03:37:06.528 INFO [stderr]  --> examples/inc.rs:1:5
Nov 28 03:37:06.528 INFO [stderr]   |
Nov 28 03:37:06.528 INFO [stderr] 1 | use std::thread;
Nov 28 03:37:06.528 INFO [stderr]   |     ^^^^^^^^^^^
Nov 28 03:37:06.528 INFO [stderr]   |
Nov 28 03:37:06.528 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 28 03:37:06.528 INFO [stderr] 
Nov 28 03:37:06.528 INFO [stderr] warning: unused import: `std::sync::mpsc::channel`
Nov 28 03:37:06.528 INFO [stderr]  --> examples/inc.rs:2:5
Nov 28 03:37:06.528 INFO [stderr]   |
Nov 28 03:37:06.528 INFO [stderr] 2 | use std::sync::mpsc::channel;
Nov 28 03:37:06.528 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 03:37:06.528 INFO [stderr] 
Nov 28 03:37:06.608 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:37:06.608 INFO [stderr]  --> examples/stdchannels.rs:8:16
Nov 28 03:37:06.609 INFO [stderr]   |
Nov 28 03:37:06.609 INFO [stderr] 8 |   let (mut tx, mut rx) = sync_channel(0);
Nov 28 03:37:06.609 INFO [stderr]   |                ----^^
Nov 28 03:37:06.609 INFO [stderr]   |                |
Nov 28 03:37:06.609 INFO [stderr]   |                help: remove this `mut`
Nov 28 03:37:06.609 INFO [stderr]   |
Nov 28 03:37:06.610 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 28 03:37:06.610 INFO [stderr] 
Nov 28 03:37:06.610 INFO [stderr] warning: variable does not need to be mutable
Nov 28 03:37:06.610 INFO [stderr]  --> examples/stdchannels.rs:8:8
Nov 28 03:37:06.610 INFO [stderr]   |
Nov 28 03:37:06.610 INFO [stderr] 8 |   let (mut tx, mut rx) = sync_channel(0);
Nov 28 03:37:06.610 INFO [stderr]   |        ----^^
Nov 28 03:37:06.610 INFO [stderr]   |        |
Nov 28 03:37:06.611 INFO [stderr]   |        help: remove this `mut`
Nov 28 03:37:06.611 INFO [stderr] 
Nov 28 03:37:06.617 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 28 03:37:06.617 INFO [stderr]   --> examples/stdchannels.rs:17:7
Nov 28 03:37:06.617 INFO [stderr]    |
Nov 28 03:37:06.617 INFO [stderr] 17 |       tx.send(7);
Nov 28 03:37:06.617 INFO [stderr]    |       ^^^^^^^^^^^
Nov 28 03:37:06.617 INFO [stderr]    |
Nov 28 03:37:06.617 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 28 03:37:06.617 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 28 03:37:06.617 INFO [stderr] 
Nov 28 03:37:06.638 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.78s
Nov 28 03:37:06.641 INFO [stderr] su: No module specific data is present
Nov 28 03:37:07.034 INFO running `"docker" "inspect" "efca32503caf35779d3dd326a4ba15b6e7456626dee93f3428119d84469ab24e"`
Nov 28 03:37:07.112 INFO running `"docker" "rm" "-f" "efca32503caf35779d3dd326a4ba15b6e7456626dee93f3428119d84469ab24e"`
Nov 28 03:37:07.245 INFO [stdout] efca32503caf35779d3dd326a4ba15b6e7456626dee93f3428119d84469ab24e