Dec 19 18:22:11.225 INFO checking darkwater/um against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 18:22:11.226 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-7/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/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" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 18:22:11.679 INFO [stdout] c330d8dac422c1d3f084127bece536b5a08df5d0841e9c146087ba3ca1f0b7b8
Dec 19 18:22:11.683 INFO running `"docker" "start" "-a" "c330d8dac422c1d3f084127bece536b5a08df5d0841e9c146087ba3ca1f0b7b8"`
Dec 19 18:22:14.144 INFO [stderr]     Checking tokio-reactor v0.1.1
Dec 19 18:22:14.984 INFO [stderr]     Checking tokio-udp v0.1.0
Dec 19 18:22:14.984 INFO [stderr]     Checking tokio-tcp v0.1.0
Dec 19 18:22:15.744 INFO [stderr]     Checking tokio v0.1.4
Dec 19 18:22:16.556 INFO [stderr]     Checking um v0.1.0 (/opt/crater/workdir)
Dec 19 18:22:17.072 INFO [stderr] warning: unused import: `TcpListener`
Dec 19 18:22:17.073 INFO [stderr]  --> src/client.rs:7:18
Dec 19 18:22:17.073 INFO [stderr]   |
Dec 19 18:22:17.073 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 19 18:22:17.073 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 19 18:22:17.073 INFO [stderr]   |
Dec 19 18:22:17.073 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:22:17.073 INFO [stderr] 
Dec 19 18:22:17.073 INFO [stderr] warning: unused import: `BufMut`
Dec 19 18:22:17.073 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 19 18:22:17.073 INFO [stderr]   |
Dec 19 18:22:17.073 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 19 18:22:17.073 INFO [stderr]   |             ^^^^^^
Dec 19 18:22:17.073 INFO [stderr] 
Dec 19 18:22:17.075 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 19 18:22:17.075 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 19 18:22:17.075 INFO [stderr]   |
Dec 19 18:22:17.075 INFO [stderr] 5 | use std::fmt::Write;
Dec 19 18:22:17.075 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 19 18:22:17.075 INFO [stderr] 
Dec 19 18:22:17.075 INFO [stderr] warning: unused import: `tokio::io`
Dec 19 18:22:17.075 INFO [stderr]  --> src/server.rs:4:5
Dec 19 18:22:17.075 INFO [stderr]   |
Dec 19 18:22:17.075 INFO [stderr] 4 | use tokio::io;
Dec 19 18:22:17.075 INFO [stderr]   |     ^^^^^^^^^
Dec 19 18:22:17.075 INFO [stderr] 
Dec 19 18:22:17.256 INFO [stderr] warning: unused import: `TcpListener`
Dec 19 18:22:17.256 INFO [stderr]  --> src/client.rs:7:18
Dec 19 18:22:17.256 INFO [stderr]   |
Dec 19 18:22:17.256 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 19 18:22:17.256 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 19 18:22:17.256 INFO [stderr]   |
Dec 19 18:22:17.256 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 19 18:22:17.256 INFO [stderr] 
Dec 19 18:22:17.256 INFO [stderr] warning: unused import: `BufMut`
Dec 19 18:22:17.256 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 19 18:22:17.256 INFO [stderr]   |
Dec 19 18:22:17.256 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 19 18:22:17.260 INFO [stderr]   |             ^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 19 18:22:17.260 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 19 18:22:17.260 INFO [stderr]   |
Dec 19 18:22:17.260 INFO [stderr] 5 | use std::fmt::Write;
Dec 19 18:22:17.260 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `super::*`
Dec 19 18:22:17.260 INFO [stderr]   --> src/node.rs:46:9
Dec 19 18:22:17.260 INFO [stderr]    |
Dec 19 18:22:17.260 INFO [stderr] 46 |     use super::*;
Dec 19 18:22:17.260 INFO [stderr]    |         ^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `tokio::io`
Dec 19 18:22:17.260 INFO [stderr]  --> src/server.rs:4:5
Dec 19 18:22:17.260 INFO [stderr]   |
Dec 19 18:22:17.260 INFO [stderr] 4 | use tokio::io;
Dec 19 18:22:17.260 INFO [stderr]   |     ^^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `super::*`
Dec 19 18:22:17.260 INFO [stderr]   --> src/server.rs:54:9
Dec 19 18:22:17.260 INFO [stderr]    |
Dec 19 18:22:17.260 INFO [stderr] 54 |     use super::*;
Dec 19 18:22:17.260 INFO [stderr]    |         ^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `::std::io::prelude::*`
Dec 19 18:22:17.260 INFO [stderr]   --> src/server.rs:55:9
Dec 19 18:22:17.260 INFO [stderr]    |
Dec 19 18:22:17.260 INFO [stderr] 55 |     use ::std::io::prelude::*;
Dec 19 18:22:17.260 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `::std::net::TcpStream`
Dec 19 18:22:17.260 INFO [stderr]   --> src/server.rs:56:9
Dec 19 18:22:17.260 INFO [stderr]    |
Dec 19 18:22:17.260 INFO [stderr] 56 |     use ::std::net::TcpStream;
Dec 19 18:22:17.260 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.260 INFO [stderr] warning: unused import: `super::*`
Dec 19 18:22:17.260 INFO [stderr]   --> src/value.rs:83:9
Dec 19 18:22:17.260 INFO [stderr]    |
Dec 19 18:22:17.260 INFO [stderr] 83 |     use super::*;
Dec 19 18:22:17.260 INFO [stderr]    |         ^^^^^^^^
Dec 19 18:22:17.260 INFO [stderr] 
Dec 19 18:22:17.492 INFO [stderr] warning: method is never used: `is_err`
Dec 19 18:22:17.492 INFO [stderr]   --> src/response.rs:14:5
Dec 19 18:22:17.492 INFO [stderr]    |
Dec 19 18:22:17.492 INFO [stderr] 14 |     pub fn is_err(&self) -> bool {
Dec 19 18:22:17.492 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:22:17.492 INFO [stderr]    |
Dec 19 18:22:17.492 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 18:22:17.492 INFO [stderr] 
Dec 19 18:22:17.492 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 18:22:17.492 INFO [stderr]  --> src/main.rs:1:12
Dec 19 18:22:17.492 INFO [stderr]   |
Dec 19 18:22:17.492 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 19 18:22:17.492 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:22:17.492 INFO [stderr]   |
Dec 19 18:22:17.492 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 18:22:17.492 INFO [stderr] 
Dec 19 18:22:17.492 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 19 18:22:17.492 INFO [stderr]  --> src/main.rs:1:41
Dec 19 18:22:17.500 INFO [stderr]   |
Dec 19 18:22:17.500 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 19 18:22:17.500 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 19 18:22:17.500 INFO [stderr] 
Dec 19 18:22:17.692 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 19 18:22:17.692 INFO [stderr]  --> src/main.rs:1:12
Dec 19 18:22:17.692 INFO [stderr]   |
Dec 19 18:22:17.692 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 19 18:22:17.692 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 19 18:22:17.692 INFO [stderr]   |
Dec 19 18:22:17.692 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 19 18:22:17.692 INFO [stderr] 
Dec 19 18:22:17.692 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 19 18:22:17.692 INFO [stderr]  --> src/main.rs:1:41
Dec 19 18:22:17.692 INFO [stderr]   |
Dec 19 18:22:17.692 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 19 18:22:17.692 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 19 18:22:17.692 INFO [stderr] 
Dec 19 18:22:17.741 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 3.71s
Dec 19 18:22:18.598 INFO running `"docker" "inspect" "c330d8dac422c1d3f084127bece536b5a08df5d0841e9c146087ba3ca1f0b7b8"`
Dec 19 18:22:18.824 INFO running `"docker" "rm" "-f" "c330d8dac422c1d3f084127bece536b5a08df5d0841e9c146087ba3ca1f0b7b8"`
Dec 19 18:22:19.024 INFO [stdout] c330d8dac422c1d3f084127bece536b5a08df5d0841e9c146087ba3ca1f0b7b8