Nov 28 17:42:55.249 INFO checking soundio-0.2.0 against try#db42d4dad33013eba11ef37342ad9f614e5652b8 for pr-56074
Nov 28 17:42:55.249 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56074/worker-6/try#db42d4dad33013eba11ef37342ad9f614e5652b8:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-6/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 17:42:55.515 INFO [stdout] fd1fea5151d1f8e1f859283a299cada03bd2440c8fd1938182e8064df9b932bf
Nov 28 17:42:55.517 INFO running `"docker" "start" "-a" "fd1fea5151d1f8e1f859283a299cada03bd2440c8fd1938182e8064df9b932bf"`
Nov 28 17:42:57.487 INFO [stderr] usermod: no changes
Nov 28 17:42:57.525 INFO [stderr] warning: An explicit [[example]] section is specified in Cargo.toml which currently
Nov 28 17:42:57.525 INFO [stderr] disables Cargo from automatically inferring other example targets.
Nov 28 17:42:57.525 INFO [stderr] This inference behavior will change in the Rust 2018 edition and the following
Nov 28 17:42:57.526 INFO [stderr] files will be included as a example target:
Nov 28 17:42:57.526 INFO [stderr] 
Nov 28 17:42:57.526 INFO [stderr] * /source/examples/sine/main.rs
Nov 28 17:42:57.526 INFO [stderr] 
Nov 28 17:42:57.527 INFO [stderr] This is likely to break cargo build or cargo test as these files may not be
Nov 28 17:42:57.527 INFO [stderr] ready to be compiled as a example target today. You can future-proof yourself
Nov 28 17:42:57.527 INFO [stderr] and disable this warning by adding `autoexamples = false` to your [package]
Nov 28 17:42:57.527 INFO [stderr] section. You may also move the files to a location where Cargo would not
Nov 28 17:42:57.528 INFO [stderr] automatically infer them to be a target, such as in subfolders.
Nov 28 17:42:57.528 INFO [stderr] 
Nov 28 17:42:57.528 INFO [stderr] For more information on this warning you can consult
Nov 28 17:42:57.528 INFO [stderr] https://github.com/rust-lang/cargo/issues/5330
Nov 28 17:42:57.553 INFO [stderr]    Compiling libsoundio-sys v0.2.0
Nov 28 17:43:03.420 INFO [stderr]     Checking soundio v0.2.0 (/source)
Nov 28 17:43:04.516 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:43:04.516 INFO [stderr]    --> src/device.rs:335:7
Nov 28 17:43:04.517 INFO [stderr]     |
Nov 28 17:43:04.518 INFO [stderr] 335 |         let mut outstream = unsafe { raw::soundio_outstream_create(self.device) };
Nov 28 17:43:04.518 INFO [stderr]     |             ----^^^^^^^^^
Nov 28 17:43:04.519 INFO [stderr]     |             |
Nov 28 17:43:04.520 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:43:04.520 INFO [stderr] warning: unused import: `super::super::backend::*`
Nov 28 17:43:04.521 INFO [stderr]    --> src/context.rs:686:6
Nov 28 17:43:04.522 INFO [stderr]     |
Nov 28 17:43:04.522 INFO [stderr] 686 |     use super::super::backend::*;
Nov 28 17:43:04.523 INFO [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 17:43:04.523 INFO [stderr]     |
Nov 28 17:43:04.524 INFO [stderr]     = note: #[warn(unused_imports)] on by default
Nov 28 17:43:04.525 INFO [stderr] 
Nov 28 17:43:04.525 INFO [stderr]     |
Nov 28 17:43:04.526 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:43:04.526 INFO [stderr] 
Nov 28 17:43:04.532 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:43:04.532 INFO [stderr]    --> src/device.rs:439:7
Nov 28 17:43:04.533 INFO [stderr]     |
Nov 28 17:43:04.534 INFO [stderr] 439 |         let mut instream = unsafe { raw::soundio_instream_create(self.device) };
Nov 28 17:43:04.534 INFO [stderr]     |             ----^^^^^^^^
Nov 28 17:43:04.535 INFO [stderr]     |             |
Nov 28 17:43:04.535 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:43:04.536 INFO [stderr] 
Nov 28 17:43:05.672 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:43:05.672 INFO [stderr]    --> src/device.rs:335:7
Nov 28 17:43:05.672 INFO [stderr]     |
Nov 28 17:43:05.673 INFO [stderr] 335 |         let mut outstream = unsafe { raw::soundio_outstream_create(self.device) };
Nov 28 17:43:05.673 INFO [stderr]     |             ----^^^^^^^^^
Nov 28 17:43:05.673 INFO [stderr]     |             |
Nov 28 17:43:05.673 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:43:05.673 INFO [stderr]     |
Nov 28 17:43:05.673 INFO [stderr]     = note: #[warn(unused_mut)] on by default
Nov 28 17:43:05.673 INFO [stderr] 
Nov 28 17:43:05.700 INFO [stderr] warning: variable does not need to be mutable
Nov 28 17:43:05.700 INFO [stderr]    --> src/device.rs:439:7
Nov 28 17:43:05.700 INFO [stderr]     |
Nov 28 17:43:05.700 INFO [stderr] 439 |         let mut instream = unsafe { raw::soundio_instream_create(self.device) };
Nov 28 17:43:05.700 INFO [stderr]     |             ----^^^^^^^^
Nov 28 17:43:05.700 INFO [stderr]     |             |
Nov 28 17:43:05.700 INFO [stderr]     |             help: remove this `mut`
Nov 28 17:43:05.700 INFO [stderr] 
Nov 28 17:43:06.485 INFO [stderr] warning: unused variable: `watch`
Nov 28 17:43:06.485 INFO [stderr]  --> examples/list_devices/main.rs:4:17
Nov 28 17:43:06.485 INFO [stderr]   |
Nov 28 17:43:06.485 INFO [stderr] 4 | fn list_devices(watch: bool, short_output: bool, backend: soundio::Backend) -> Result<(), String> {
Nov 28 17:43:06.485 INFO [stderr]   |                 ^^^^^ help: consider using `_watch` instead
Nov 28 17:43:06.485 INFO [stderr]   |
Nov 28 17:43:06.485 INFO [stderr]   = note: #[warn(unused_variables)] on by default
Nov 28 17:43:06.485 INFO [stderr] 
Nov 28 17:43:06.618 INFO [stderr] warning: method is never used: `finished`
Nov 28 17:43:06.618 INFO [stderr]   --> examples/player/main.rs:50:2
Nov 28 17:43:06.618 INFO [stderr]    |
Nov 28 17:43:06.618 INFO [stderr] 50 |     fn finished(&self) -> bool {
Nov 28 17:43:06.618 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Nov 28 17:43:06.618 INFO [stderr]    |
Nov 28 17:43:06.620 INFO [stderr]    = note: #[warn(dead_code)] on by default
Nov 28 17:43:06.620 INFO [stderr] 
Nov 28 17:43:06.676 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 9.17s
Nov 28 17:43:06.680 INFO [stderr] su: No module specific data is present
Nov 28 17:43:07.516 INFO running `"docker" "inspect" "fd1fea5151d1f8e1f859283a299cada03bd2440c8fd1938182e8064df9b932bf"`
Nov 28 17:43:07.886 INFO running `"docker" "rm" "-f" "fd1fea5151d1f8e1f859283a299cada03bd2440c8fd1938182e8064df9b932bf"`
Nov 28 17:43:08.077 INFO [stdout] fd1fea5151d1f8e1f859283a299cada03bd2440c8fd1938182e8064df9b932bf