Nov 30 01:13:25.023 INFO checking jakobdalsgaard/rust-examples against try#32252761328f59ccfadb1bafb8148c685bc830b3 for pr-56323
Nov 30 01:13:25.023 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56323/worker-5/try#32252761328f59ccfadb1bafb8148c685bc830b3:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56323/try#32252761328f59ccfadb1bafb8148c685bc830b3:/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 +32252761328f59ccfadb1bafb8148c685bc830b3-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 30 01:13:25.297 INFO [stdout] 7dd304864083aa8d525b3b2844617e4512688bc70df718d8e904eec4387934e1
Nov 30 01:13:25.299 INFO running `"docker" "start" "-a" "7dd304864083aa8d525b3b2844617e4512688bc70df718d8e904eec4387934e1"`
Nov 30 01:13:25.960 INFO [stderr] usermod: no changes
Nov 30 01:13:26.016 INFO [stderr]     Checking log v0.3.6
Nov 30 01:13:26.224 INFO [stderr]     Checking futures v0.1.10
Nov 30 01:13:28.026 INFO [stderr]     Checking rust-examples v0.1.0 (/source)
Nov 30 01:13:29.076 INFO [stderr] warning: unused import: `std::thread`
Nov 30 01:13:29.076 INFO [stderr]  --> examples/inc.rs:1:5
Nov 30 01:13:29.076 INFO [stderr]   |
Nov 30 01:13:29.076 INFO [stderr] 1 | use std::thread;
Nov 30 01:13:29.076 INFO [stderr]   |     ^^^^^^^^^^^
Nov 30 01:13:29.099 INFO [stderr]   |
Nov 30 01:13:29.099 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 01:13:29.099 INFO [stderr] 
Nov 30 01:13:29.099 INFO [stderr] warning: unused import: `std::sync::mpsc::channel`
Nov 30 01:13:29.100 INFO [stderr]  --> examples/inc.rs:2:5
Nov 30 01:13:29.100 INFO [stderr]   |
Nov 30 01:13:29.100 INFO [stderr] 2 | use std::sync::mpsc::channel;
Nov 30 01:13:29.100 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 01:13:29.100 INFO [stderr] 
Nov 30 01:13:29.542 INFO [stderr] warning: unused import: `futures::sync::mpsc::Sender`
Nov 30 01:13:29.542 INFO [stderr]  --> examples/futurechannels.rs:7:5
Nov 30 01:13:29.542 INFO [stderr]   |
Nov 30 01:13:29.542 INFO [stderr] 7 | use futures::sync::mpsc::Sender;
Nov 30 01:13:29.542 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 01:13:29.545 INFO [stderr]   |
Nov 30 01:13:29.545 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Nov 30 01:13:29.545 INFO [stderr] 
Nov 30 01:13:29.632 INFO [stderr] warning: variable does not need to be mutable
Nov 30 01:13:29.632 INFO [stderr]  --> examples/stdchannels.rs:8:16
Nov 30 01:13:29.632 INFO [stderr]   |
Nov 30 01:13:29.632 INFO [stderr] 8 |   let (mut tx, mut rx) = sync_channel(0);
Nov 30 01:13:29.632 INFO [stderr]   |                ----^^
Nov 30 01:13:29.632 INFO [stderr]   |                |
Nov 30 01:13:29.632 INFO [stderr]   |                help: remove this `mut`
Nov 30 01:13:29.639 INFO [stderr]   |
Nov 30 01:13:29.639 INFO [stderr]   = note: #[warn(unused_mut)] on by default
Nov 30 01:13:29.639 INFO [stderr] 
Nov 30 01:13:29.639 INFO [stderr] warning: variable does not need to be mutable
Nov 30 01:13:29.639 INFO [stderr]  --> examples/stdchannels.rs:8:8
Nov 30 01:13:29.639 INFO [stderr]   |
Nov 30 01:13:29.639 INFO [stderr] 8 |   let (mut tx, mut rx) = sync_channel(0);
Nov 30 01:13:29.639 INFO [stderr]   |        ----^^
Nov 30 01:13:29.639 INFO [stderr]   |        |
Nov 30 01:13:29.639 INFO [stderr]   |        help: remove this `mut`
Nov 30 01:13:29.644 INFO [stderr] 
Nov 30 01:13:29.660 INFO [stderr] warning: unused variable: `child2`
Nov 30 01:13:29.660 INFO [stderr]   --> examples/futurechannels.rs:28:7
Nov 30 01:13:29.660 INFO [stderr]    |
Nov 30 01:13:29.660 INFO [stderr] 28 |   let child2 = thread::spawn(move || {
Nov 30 01:13:29.660 INFO [stderr]    |       ^^^^^^ help: consider using `_child2` instead
Nov 30 01:13:29.660 INFO [stderr]    |
Nov 30 01:13:29.660 INFO [stderr]    = note: #[warn(unused_variables)] on by default
Nov 30 01:13:29.660 INFO [stderr] 
Nov 30 01:13:29.660 INFO [stderr] warning: unused variable: `rest`
Nov 30 01:13:29.660 INFO [stderr]   --> examples/futurechannels.rs:66:14
Nov 30 01:13:29.660 INFO [stderr]    |
Nov 30 01:13:29.660 INFO [stderr] 66 |   let (item, rest) = rest.into_future().wait().ok().unwrap();
Nov 30 01:13:29.660 INFO [stderr]    |              ^^^^ help: consider using `_rest` instead
Nov 30 01:13:29.660 INFO [stderr] 
Nov 30 01:13:29.660 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:13:29.660 INFO [stderr]   --> examples/stdchannels.rs:17:7
Nov 30 01:13:29.661 INFO [stderr]    |
Nov 30 01:13:29.661 INFO [stderr] 17 |       tx.send(7);
Nov 30 01:13:29.661 INFO [stderr]    |       ^^^^^^^^^^^
Nov 30 01:13:29.661 INFO [stderr]    |
Nov 30 01:13:29.661 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 01:13:29.661 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:13:29.661 INFO [stderr] 
Nov 30 01:13:29.687 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:13:29.687 INFO [stderr]   --> examples/futurechannels.rs:14:5
Nov 30 01:13:29.687 INFO [stderr]    |
Nov 30 01:13:29.687 INFO [stderr] 14 | /     receiver.map(|i| {
Nov 30 01:13:29.687 INFO [stderr] 15 | |       println!("got: {}", i);
Nov 30 01:13:29.687 INFO [stderr] 16 | |     }).wait();
Nov 30 01:13:29.687 INFO [stderr]    | |______________^
Nov 30 01:13:29.687 INFO [stderr]    |
Nov 30 01:13:29.687 INFO [stderr]    = note: #[warn(unused_must_use)] on by default
Nov 30 01:13:29.687 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:13:29.687 INFO [stderr] 
Nov 30 01:13:29.687 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:13:29.687 INFO [stderr]   --> examples/futurechannels.rs:30:5
Nov 30 01:13:29.687 INFO [stderr]    |
Nov 30 01:13:29.687 INFO [stderr] 30 |     sender2.send(1).and_then(|tx| { println!("sending 2"); tx.send(2) } ).wait();
Nov 30 01:13:29.687 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 01:13:29.688 INFO [stderr]    |
Nov 30 01:13:29.688 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:13:29.688 INFO [stderr] 
Nov 30 01:13:29.689 INFO [stderr] warning: unused `std::result::Result` that must be used
Nov 30 01:13:29.689 INFO [stderr]   --> examples/futurechannels.rs:49:3
Nov 30 01:13:29.689 INFO [stderr]    |
Nov 30 01:13:29.689 INFO [stderr] 49 |   sender3.send(5).and_then(|tx| tx.send(6)).wait();
Nov 30 01:13:29.689 INFO [stderr]    |   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 30 01:13:29.689 INFO [stderr]    |
Nov 30 01:13:29.689 INFO [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
Nov 30 01:13:29.689 INFO [stderr] 
Nov 30 01:13:29.752 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.76s
Nov 30 01:13:29.752 INFO [stderr] su: No module specific data is present
Nov 30 01:13:30.369 INFO running `"docker" "inspect" "7dd304864083aa8d525b3b2844617e4512688bc70df718d8e904eec4387934e1"`
Nov 30 01:13:30.648 INFO running `"docker" "rm" "-f" "7dd304864083aa8d525b3b2844617e4512688bc70df718d8e904eec4387934e1"`
Nov 30 01:13:30.966 INFO [stdout] 7dd304864083aa8d525b3b2844617e4512688bc70df718d8e904eec4387934e1