Dec 19 13:56:54.757 INFO checking kvsari/message-queue against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 13:56:54.758 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-0/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/kvsari/message-queue:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 13:56:54.945 INFO [stdout] c6f523656147126c9311340d029068bb2fb5258f980f60b7e8c3a0303b6f2e43
Dec 19 13:56:54.950 INFO running `"docker" "start" "-a" "c6f523656147126c9311340d029068bb2fb5258f980f60b7e8c3a0303b6f2e43"`
Dec 19 13:56:56.032 INFO [stderr]     Checking tokio-io v0.1.2
Dec 19 13:56:56.032 INFO [stderr]    Compiling derive-getters v0.0.2
Dec 19 13:56:57.602 INFO [stderr]     Checking tokio-core v0.1.9
Dec 19 13:56:58.723 INFO [stderr]     Checking message-queue v0.1.0 (/opt/crater/workdir)
Dec 19 13:56:59.043 INFO [stderr] warning: unused import: `stream`
Dec 19 13:56:59.043 INFO [stderr]  --> src/mqueue.rs:4:48
Dec 19 13:56:59.043 INFO [stderr]   |
Dec 19 13:56:59.044 INFO [stderr] 4 | use futures::{Future, BoxFuture, Sink, Stream, stream};
Dec 19 13:56:59.044 INFO [stderr]   |                                                ^^^^^^
Dec 19 13:56:59.044 INFO [stderr]   |
Dec 19 13:56:59.045 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:56:59.045 INFO [stderr] 
Dec 19 13:56:59.045 INFO [stderr] warning: unused import: `futures::sync::oneshot`
Dec 19 13:56:59.045 INFO [stderr]  --> src/mqueue.rs:5:5
Dec 19 13:56:59.045 INFO [stderr]   |
Dec 19 13:56:59.045 INFO [stderr] 5 | use futures::sync::oneshot;
Dec 19 13:56:59.045 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:56:59.045 INFO [stderr] 
Dec 19 13:56:59.045 INFO [stderr] warning: unused import: `Receiver`
Dec 19 13:56:59.045 INFO [stderr]  --> src/mqueue.rs:6:33
Dec 19 13:56:59.045 INFO [stderr]   |
Dec 19 13:56:59.045 INFO [stderr] 6 | use futures::sync::mpsc::{self, Receiver, Sender};
Dec 19 13:56:59.045 INFO [stderr]   |                                 ^^^^^^^^
Dec 19 13:56:59.046 INFO [stderr] 
Dec 19 13:56:59.046 INFO [stderr] warning: unused import: `Dispenser`
Dec 19 13:56:59.046 INFO [stderr]  --> src/mqueue.rs:8:22
Dec 19 13:56:59.046 INFO [stderr]   |
Dec 19 13:56:59.046 INFO [stderr] 8 | use endpoint::{self, Dispenser};
Dec 19 13:56:59.046 INFO [stderr]   |                      ^^^^^^^^^
Dec 19 13:56:59.046 INFO [stderr] 
Dec 19 13:56:59.052 INFO [stderr] warning: unused import: `std::fmt::Debug`
Dec 19 13:56:59.052 INFO [stderr]  --> src/endpoint.rs:1:5
Dec 19 13:56:59.052 INFO [stderr]   |
Dec 19 13:56:59.052 INFO [stderr] 1 | use std::fmt::Debug;
Dec 19 13:56:59.052 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 19 13:56:59.052 INFO [stderr] 
Dec 19 13:56:59.052 INFO [stderr] warning: unused import: `Entry`
Dec 19 13:56:59.052 INFO [stderr]  --> src/endpoint.rs:3:27
Dec 19 13:56:59.052 INFO [stderr]   |
Dec 19 13:56:59.052 INFO [stderr] 3 | use polymorphic::{Record, Entry};
Dec 19 13:56:59.052 INFO [stderr]   |                           ^^^^^
Dec 19 13:56:59.052 INFO [stderr] 
Dec 19 13:56:59.129 INFO [stderr] warning: unused import: `stream`
Dec 19 13:56:59.129 INFO [stderr]  --> src/mqueue.rs:4:48
Dec 19 13:56:59.129 INFO [stderr]   |
Dec 19 13:56:59.129 INFO [stderr] 4 | use futures::{Future, BoxFuture, Sink, Stream, stream};
Dec 19 13:56:59.129 INFO [stderr]   |                                                ^^^^^^
Dec 19 13:56:59.129 INFO [stderr]   |
Dec 19 13:56:59.129 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 13:56:59.129 INFO [stderr] 
Dec 19 13:56:59.129 INFO [stderr] warning: unused import: `futures::sync::oneshot`
Dec 19 13:56:59.129 INFO [stderr]  --> src/mqueue.rs:5:5
Dec 19 13:56:59.129 INFO [stderr]   |
Dec 19 13:56:59.129 INFO [stderr] 5 | use futures::sync::oneshot;
Dec 19 13:56:59.129 INFO [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 13:56:59.129 INFO [stderr] 
Dec 19 13:56:59.129 INFO [stderr] warning: unused import: `Receiver`
Dec 19 13:56:59.129 INFO [stderr]  --> src/mqueue.rs:6:33
Dec 19 13:56:59.129 INFO [stderr]   |
Dec 19 13:56:59.129 INFO [stderr] 6 | use futures::sync::mpsc::{self, Receiver, Sender};
Dec 19 13:56:59.129 INFO [stderr]   |                                 ^^^^^^^^
Dec 19 13:56:59.129 INFO [stderr] 
Dec 19 13:56:59.129 INFO [stderr] warning: unused import: `Dispenser`
Dec 19 13:56:59.129 INFO [stderr]  --> src/mqueue.rs:8:22
Dec 19 13:56:59.129 INFO [stderr]   |
Dec 19 13:56:59.129 INFO [stderr] 8 | use endpoint::{self, Dispenser};
Dec 19 13:56:59.129 INFO [stderr]   |                      ^^^^^^^^^
Dec 19 13:56:59.129 INFO [stderr] 
Dec 19 13:56:59.130 INFO [stderr] warning: unused import: `std::fmt::Debug`
Dec 19 13:56:59.130 INFO [stderr]  --> src/endpoint.rs:1:5
Dec 19 13:56:59.130 INFO [stderr]   |
Dec 19 13:56:59.130 INFO [stderr] 1 | use std::fmt::Debug;
Dec 19 13:56:59.130 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 19 13:56:59.130 INFO [stderr] 
Dec 19 13:56:59.130 INFO [stderr] warning: unused import: `Entry`
Dec 19 13:56:59.130 INFO [stderr]  --> src/endpoint.rs:3:27
Dec 19 13:56:59.130 INFO [stderr]   |
Dec 19 13:56:59.130 INFO [stderr] 3 | use polymorphic::{Record, Entry};
Dec 19 13:56:59.130 INFO [stderr]   |                           ^^^^^
Dec 19 13:56:59.130 INFO [stderr] 
Dec 19 13:56:59.131 INFO [stderr] warning: unused variable: `data`
Dec 19 13:56:59.132 INFO [stderr]    --> src/mqueue.rs:130:20
Dec 19 13:56:59.132 INFO [stderr]     |
Dec 19 13:56:59.132 INFO [stderr] 130 |         let (_, _, data, mut operation) = env.open();
Dec 19 13:56:59.132 INFO [stderr]     |                    ^^^^ help: consider using `_data` instead
Dec 19 13:56:59.132 INFO [stderr]     |
Dec 19 13:56:59.136 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 13:56:59.136 INFO [stderr] 
Dec 19 13:56:59.156 INFO [stderr] warning: variable does not need to be mutable
Dec 19 13:56:59.157 INFO [stderr]   --> src/polymorphic.rs:73:21
Dec 19 13:56:59.157 INFO [stderr]    |
Dec 19 13:56:59.157 INFO [stderr] 73 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
Dec 19 13:56:59.157 INFO [stderr]    |                     ----^^^
Dec 19 13:56:59.157 INFO [stderr]    |                     |
Dec 19 13:56:59.157 INFO [stderr]    |                     help: remove this `mut`
Dec 19 13:56:59.159 INFO [stderr]    |
Dec 19 13:56:59.159 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 13:56:59.159 INFO [stderr] 
Dec 19 13:56:59.159 INFO [stderr] warning: variable does not need to be mutable
Dec 19 13:56:59.159 INFO [stderr]    --> src/polymorphic.rs:100:21
Dec 19 13:56:59.160 INFO [stderr]     |
Dec 19 13:56:59.160 INFO [stderr] 100 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
Dec 19 13:56:59.160 INFO [stderr]     |                     ----^^^
Dec 19 13:56:59.160 INFO [stderr]     |                     |
Dec 19 13:56:59.160 INFO [stderr]     |                     help: remove this `mut`
Dec 19 13:56:59.160 INFO [stderr] 
Dec 19 13:56:59.161 INFO [stderr] warning: variant is never constructed: `Yeeehaw`
Dec 19 13:56:59.161 INFO [stderr]   --> src/mqueue.rs:18:5
Dec 19 13:56:59.161 INFO [stderr]    |
Dec 19 13:56:59.161 INFO [stderr] 18 |     Yeeehaw,
Dec 19 13:56:59.161 INFO [stderr]    |     ^^^^^^^
Dec 19 13:56:59.161 INFO [stderr]    |
Dec 19 13:56:59.168 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 13:56:59.168 INFO [stderr] 
Dec 19 13:56:59.168 INFO [stderr] warning: variant is never constructed: `Endpoint1`
Dec 19 13:56:59.168 INFO [stderr]   --> src/mqueue.rs:24:5
Dec 19 13:56:59.168 INFO [stderr]    |
Dec 19 13:56:59.168 INFO [stderr] 24 |     Endpoint1,
Dec 19 13:56:59.168 INFO [stderr]    |     ^^^^^^^^^
Dec 19 13:56:59.168 INFO [stderr] 
Dec 19 13:56:59.168 INFO [stderr] warning: variant is never constructed: `Endpoint2`
Dec 19 13:56:59.168 INFO [stderr]   --> src/mqueue.rs:25:5
Dec 19 13:56:59.168 INFO [stderr]    |
Dec 19 13:56:59.168 INFO [stderr] 25 |     Endpoint2,
Dec 19 13:56:59.168 INFO [stderr]    |     ^^^^^^^^^
Dec 19 13:56:59.168 INFO [stderr] 
Dec 19 13:56:59.212 INFO [stderr] warning: unused variable: `data`
Dec 19 13:56:59.212 INFO [stderr]    --> src/mqueue.rs:130:20
Dec 19 13:56:59.212 INFO [stderr]     |
Dec 19 13:56:59.216 INFO [stderr] 130 |         let (_, _, data, mut operation) = env.open();
Dec 19 13:56:59.216 INFO [stderr]     |                    ^^^^ help: consider using `_data` instead
Dec 19 13:56:59.216 INFO [stderr]     |
Dec 19 13:56:59.216 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 19 13:56:59.216 INFO [stderr] 
Dec 19 13:56:59.236 INFO [stderr] warning: variable does not need to be mutable
Dec 19 13:56:59.236 INFO [stderr]   --> src/polymorphic.rs:73:21
Dec 19 13:56:59.236 INFO [stderr]    |
Dec 19 13:56:59.237 INFO [stderr] 73 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
Dec 19 13:56:59.237 INFO [stderr]    |                     ----^^^
Dec 19 13:56:59.237 INFO [stderr]    |                     |
Dec 19 13:56:59.237 INFO [stderr]    |                     help: remove this `mut`
Dec 19 13:56:59.237 INFO [stderr]    |
Dec 19 13:56:59.237 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 19 13:56:59.237 INFO [stderr] 
Dec 19 13:56:59.238 INFO [stderr] warning: variable does not need to be mutable
Dec 19 13:56:59.244 INFO [stderr]    --> src/polymorphic.rs:100:21
Dec 19 13:56:59.244 INFO [stderr]     |
Dec 19 13:56:59.244 INFO [stderr] 100 |         if let Some(mut dsp) = dispenser.downcast_mut::<Simple<Record>>() {
Dec 19 13:56:59.244 INFO [stderr]     |                     ----^^^
Dec 19 13:56:59.244 INFO [stderr]     |                     |
Dec 19 13:56:59.244 INFO [stderr]     |                     help: remove this `mut`
Dec 19 13:56:59.244 INFO [stderr] 
Dec 19 13:56:59.244 INFO [stderr] warning: variant is never constructed: `Yeeehaw`
Dec 19 13:56:59.244 INFO [stderr]   --> src/mqueue.rs:18:5
Dec 19 13:56:59.244 INFO [stderr]    |
Dec 19 13:56:59.244 INFO [stderr] 18 |     Yeeehaw,
Dec 19 13:56:59.244 INFO [stderr]    |     ^^^^^^^
Dec 19 13:56:59.244 INFO [stderr]    |
Dec 19 13:56:59.244 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 13:56:59.244 INFO [stderr] 
Dec 19 13:56:59.244 INFO [stderr] warning: variant is never constructed: `Endpoint1`
Dec 19 13:56:59.244 INFO [stderr]   --> src/mqueue.rs:24:5
Dec 19 13:56:59.244 INFO [stderr]    |
Dec 19 13:56:59.244 INFO [stderr] 24 |     Endpoint1,
Dec 19 13:56:59.244 INFO [stderr]    |     ^^^^^^^^^
Dec 19 13:56:59.244 INFO [stderr] 
Dec 19 13:56:59.244 INFO [stderr] warning: variant is never constructed: `Endpoint2`
Dec 19 13:56:59.244 INFO [stderr]   --> src/mqueue.rs:25:5
Dec 19 13:56:59.244 INFO [stderr]    |
Dec 19 13:56:59.244 INFO [stderr] 25 |     Endpoint2,
Dec 19 13:56:59.244 INFO [stderr]    |     ^^^^^^^^^
Dec 19 13:56:59.244 INFO [stderr] 
Dec 19 13:56:59.273 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.36s
Dec 19 13:56:59.778 INFO running `"docker" "inspect" "c6f523656147126c9311340d029068bb2fb5258f980f60b7e8c3a0303b6f2e43"`
Dec 19 13:56:59.964 INFO running `"docker" "rm" "-f" "c6f523656147126c9311340d029068bb2fb5258f980f60b7e8c3a0303b6f2e43"`
Dec 19 13:57:00.244 INFO [stdout] c6f523656147126c9311340d029068bb2fb5258f980f60b7e8c3a0303b6f2e43