Dec 18 01:45:53.837 INFO checking darkwater/um against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 01:45:53.837 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/darkwater/um:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:45:54.291 INFO [stdout] e62c14eefe6a57f4a9c4438754121f25038459a42b7a96ae81c913d5e6d1abe3
Dec 18 01:45:54.293 INFO running `"docker" "start" "-a" "e62c14eefe6a57f4a9c4438754121f25038459a42b7a96ae81c913d5e6d1abe3"`
Dec 18 01:45:56.485 INFO [stderr]     Checking tokio-executor v0.1.1
Dec 18 01:45:56.485 INFO [stderr]     Checking bytes v0.4.6
Dec 18 01:45:57.257 INFO [stderr]     Checking tokio-threadpool v0.1.1
Dec 18 01:45:58.164 INFO [stderr]     Checking tokio-io v0.1.6
Dec 18 01:45:59.444 INFO [stderr]     Checking tokio-reactor v0.1.1
Dec 18 01:46:00.164 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 18 01:46:00.166 INFO [stderr]     Checking tokio-udp v0.1.0
Dec 18 01:46:01.010 INFO [stderr]     Checking tokio v0.1.4
Dec 18 01:46:01.962 INFO [stderr]     Checking um v0.1.0 (/opt/crater/workdir)
Dec 18 01:46:02.514 INFO [stderr] warning: unused import: `TcpListener`
Dec 18 01:46:02.514 INFO [stderr]  --> src/client.rs:7:18
Dec 18 01:46:02.514 INFO [stderr]   |
Dec 18 01:46:02.514 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 18 01:46:02.515 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 18 01:46:02.515 INFO [stderr]   |
Dec 18 01:46:02.515 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 01:46:02.515 INFO [stderr] 
Dec 18 01:46:02.516 INFO [stderr] warning: unused import: `BufMut`
Dec 18 01:46:02.516 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 18 01:46:02.517 INFO [stderr]   |
Dec 18 01:46:02.517 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 18 01:46:02.517 INFO [stderr]   |             ^^^^^^
Dec 18 01:46:02.517 INFO [stderr] 
Dec 18 01:46:02.518 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 18 01:46:02.518 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 18 01:46:02.518 INFO [stderr]   |
Dec 18 01:46:02.518 INFO [stderr] 5 | use std::fmt::Write;
Dec 18 01:46:02.518 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 01:46:02.519 INFO [stderr] 
Dec 18 01:46:02.519 INFO [stderr] warning: unused import: `tokio::io`
Dec 18 01:46:02.520 INFO [stderr]  --> src/server.rs:4:5
Dec 18 01:46:02.520 INFO [stderr]   |
Dec 18 01:46:02.520 INFO [stderr] 4 | use tokio::io;
Dec 18 01:46:02.520 INFO [stderr]   |     ^^^^^^^^^
Dec 18 01:46:02.521 INFO [stderr] 
Dec 18 01:46:02.701 INFO [stderr] warning: unused import: `TcpListener`
Dec 18 01:46:02.701 INFO [stderr]  --> src/client.rs:7:18
Dec 18 01:46:02.701 INFO [stderr]   |
Dec 18 01:46:02.701 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 18 01:46:02.701 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 18 01:46:02.701 INFO [stderr]   |
Dec 18 01:46:02.701 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 01:46:02.701 INFO [stderr] 
Dec 18 01:46:02.701 INFO [stderr] warning: unused import: `BufMut`
Dec 18 01:46:02.701 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 18 01:46:02.701 INFO [stderr]   |
Dec 18 01:46:02.701 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 18 01:46:02.701 INFO [stderr]   |             ^^^^^^
Dec 18 01:46:02.701 INFO [stderr] 
Dec 18 01:46:02.702 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 18 01:46:02.702 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 18 01:46:02.702 INFO [stderr]   |
Dec 18 01:46:02.702 INFO [stderr] 5 | use std::fmt::Write;
Dec 18 01:46:02.702 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 01:46:02.702 INFO [stderr] 
Dec 18 01:46:02.702 INFO [stderr] warning: unused import: `super::*`
Dec 18 01:46:02.702 INFO [stderr]   --> src/node.rs:46:9
Dec 18 01:46:02.702 INFO [stderr]    |
Dec 18 01:46:02.702 INFO [stderr] 46 |     use super::*;
Dec 18 01:46:02.702 INFO [stderr]    |         ^^^^^^^^
Dec 18 01:46:02.702 INFO [stderr] 
Dec 18 01:46:02.702 INFO [stderr] warning: unused import: `tokio::io`
Dec 18 01:46:02.702 INFO [stderr]  --> src/server.rs:4:5
Dec 18 01:46:02.703 INFO [stderr]   |
Dec 18 01:46:02.703 INFO [stderr] 4 | use tokio::io;
Dec 18 01:46:02.703 INFO [stderr]   |     ^^^^^^^^^
Dec 18 01:46:02.703 INFO [stderr] 
Dec 18 01:46:02.703 INFO [stderr] warning: unused import: `super::*`
Dec 18 01:46:02.703 INFO [stderr]   --> src/server.rs:54:9
Dec 18 01:46:02.703 INFO [stderr]    |
Dec 18 01:46:02.703 INFO [stderr] 54 |     use super::*;
Dec 18 01:46:02.704 INFO [stderr]    |         ^^^^^^^^
Dec 18 01:46:02.704 INFO [stderr] 
Dec 18 01:46:02.704 INFO [stderr] warning: unused import: `::std::io::prelude::*`
Dec 18 01:46:02.704 INFO [stderr]   --> src/server.rs:55:9
Dec 18 01:46:02.704 INFO [stderr]    |
Dec 18 01:46:02.704 INFO [stderr] 55 |     use ::std::io::prelude::*;
Dec 18 01:46:02.704 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:02.705 INFO [stderr] 
Dec 18 01:46:02.705 INFO [stderr] warning: unused import: `::std::net::TcpStream`
Dec 18 01:46:02.705 INFO [stderr]   --> src/server.rs:56:9
Dec 18 01:46:02.705 INFO [stderr]    |
Dec 18 01:46:02.705 INFO [stderr] 56 |     use ::std::net::TcpStream;
Dec 18 01:46:02.705 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:02.705 INFO [stderr] 
Dec 18 01:46:02.705 INFO [stderr] warning: unused import: `super::*`
Dec 18 01:46:02.706 INFO [stderr]   --> src/value.rs:83:9
Dec 18 01:46:02.706 INFO [stderr]    |
Dec 18 01:46:02.706 INFO [stderr] 83 |     use super::*;
Dec 18 01:46:02.706 INFO [stderr]    |         ^^^^^^^^
Dec 18 01:46:02.706 INFO [stderr] 
Dec 18 01:46:02.838 INFO [stderr] warning: method is never used: `is_err`
Dec 18 01:46:02.839 INFO [stderr]   --> src/response.rs:14:5
Dec 18 01:46:02.839 INFO [stderr]    |
Dec 18 01:46:02.839 INFO [stderr] 14 |     pub fn is_err(&self) -> bool {
Dec 18 01:46:02.840 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:02.840 INFO [stderr]    |
Dec 18 01:46:02.840 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 01:46:02.840 INFO [stderr] 
Dec 18 01:46:02.841 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 01:46:02.841 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:46:02.842 INFO [stderr]   |
Dec 18 01:46:02.842 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:02.842 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:02.842 INFO [stderr]   |
Dec 18 01:46:02.843 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 01:46:02.843 INFO [stderr] 
Dec 18 01:46:02.844 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 18 01:46:02.844 INFO [stderr]  --> src/main.rs:1:41
Dec 18 01:46:02.844 INFO [stderr]   |
Dec 18 01:46:02.848 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:02.848 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 18 01:46:02.849 INFO [stderr] 
Dec 18 01:46:03.032 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 18 01:46:03.032 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:46:03.033 INFO [stderr]   |
Dec 18 01:46:03.033 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:03.033 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:03.033 INFO [stderr]   |
Dec 18 01:46:03.033 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 01:46:03.033 INFO [stderr] 
Dec 18 01:46:03.033 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 18 01:46:03.033 INFO [stderr]  --> src/main.rs:1:41
Dec 18 01:46:03.033 INFO [stderr]   |
Dec 18 01:46:03.033 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:03.033 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 18 01:46:03.033 INFO [stderr] 
Dec 18 01:46:03.079 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.74s
Dec 18 01:46:03.574 INFO running `"docker" "inspect" "e62c14eefe6a57f4a9c4438754121f25038459a42b7a96ae81c913d5e6d1abe3"`
Dec 18 01:46:03.794 INFO running `"docker" "rm" "-f" "e62c14eefe6a57f4a9c4438754121f25038459a42b7a96ae81c913d5e6d1abe3"`
Dec 18 01:46:03.976 INFO [stdout] e62c14eefe6a57f4a9c4438754121f25038459a42b7a96ae81c913d5e6d1abe3