Dec 18 01:45:56.851 INFO checking darkwater/um against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 18 01:45:56.851 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-2/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 01:45:57.269 INFO [stdout] ed0a0178e9be5805b2a90a1e38b3783f63b253a7d338d889027c70cc52c8660e
Dec 18 01:45:57.271 INFO running `"docker" "start" "-a" "ed0a0178e9be5805b2a90a1e38b3783f63b253a7d338d889027c70cc52c8660e"`
Dec 18 01:45:59.551 INFO [stderr]     Checking um v0.1.0 (/opt/crater/workdir)
Dec 18 01:46:00.336 INFO [stderr] warning: unused import: `TcpListener`
Dec 18 01:46:00.336 INFO [stderr]  --> src/client.rs:7:18
Dec 18 01:46:00.336 INFO [stderr]   |
Dec 18 01:46:00.336 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 18 01:46:00.336 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 18 01:46:00.336 INFO [stderr]   |
Dec 18 01:46:00.336 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 01:46:00.337 INFO [stderr] 
Dec 18 01:46:00.337 INFO [stderr] warning: unused import: `BufMut`
Dec 18 01:46:00.337 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 18 01:46:00.337 INFO [stderr]   |
Dec 18 01:46:00.337 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 18 01:46:00.337 INFO [stderr]   |             ^^^^^^
Dec 18 01:46:00.337 INFO [stderr] 
Dec 18 01:46:00.337 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 18 01:46:00.337 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 18 01:46:00.337 INFO [stderr]   |
Dec 18 01:46:00.337 INFO [stderr] 5 | use std::fmt::Write;
Dec 18 01:46:00.337 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 01:46:00.337 INFO [stderr] 
Dec 18 01:46:00.337 INFO [stderr] warning: unused import: `tokio::io`
Dec 18 01:46:00.337 INFO [stderr]  --> src/server.rs:4:5
Dec 18 01:46:00.337 INFO [stderr]   |
Dec 18 01:46:00.337 INFO [stderr] 4 | use tokio::io;
Dec 18 01:46:00.337 INFO [stderr]   |     ^^^^^^^^^
Dec 18 01:46:00.337 INFO [stderr] 
Dec 18 01:46:00.396 INFO [stderr] warning: unused import: `TcpListener`
Dec 18 01:46:00.397 INFO [stderr]  --> src/client.rs:7:18
Dec 18 01:46:00.397 INFO [stderr]   |
Dec 18 01:46:00.397 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 18 01:46:00.398 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 18 01:46:00.398 INFO [stderr]   |
Dec 18 01:46:00.398 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 18 01:46:00.398 INFO [stderr] 
Dec 18 01:46:00.399 INFO [stderr] warning: unused import: `BufMut`
Dec 18 01:46:00.399 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 18 01:46:00.399 INFO [stderr]   |
Dec 18 01:46:00.399 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 18 01:46:00.400 INFO [stderr]   |             ^^^^^^
Dec 18 01:46:00.400 INFO [stderr] 
Dec 18 01:46:00.400 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 18 01:46:00.400 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 18 01:46:00.401 INFO [stderr]   |
Dec 18 01:46:00.401 INFO [stderr] 5 | use std::fmt::Write;
Dec 18 01:46:00.401 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 18 01:46:00.401 INFO [stderr] 
Dec 18 01:46:00.402 INFO [stderr] warning: unused import: `super::*`
Dec 18 01:46:00.402 INFO [stderr]   --> src/node.rs:46:9
Dec 18 01:46:00.402 INFO [stderr]    |
Dec 18 01:46:00.402 INFO [stderr] 46 |     use super::*;
Dec 18 01:46:00.402 INFO [stderr]    |         ^^^^^^^^
Dec 18 01:46:00.402 INFO [stderr] 
Dec 18 01:46:00.402 INFO [stderr] warning: unused import: `tokio::io`
Dec 18 01:46:00.402 INFO [stderr]  --> src/server.rs:4:5
Dec 18 01:46:00.402 INFO [stderr]   |
Dec 18 01:46:00.402 INFO [stderr] 4 | use tokio::io;
Dec 18 01:46:00.402 INFO [stderr]   |     ^^^^^^^^^
Dec 18 01:46:00.402 INFO [stderr] 
Dec 18 01:46:00.402 INFO [stderr] warning: unused import: `super::*`
Dec 18 01:46:00.402 INFO [stderr]   --> src/server.rs:54:9
Dec 18 01:46:00.402 INFO [stderr]    |
Dec 18 01:46:00.402 INFO [stderr] 54 |     use super::*;
Dec 18 01:46:00.402 INFO [stderr]    |         ^^^^^^^^
Dec 18 01:46:00.402 INFO [stderr] 
Dec 18 01:46:00.402 INFO [stderr] warning: unused import: `::std::io::prelude::*`
Dec 18 01:46:00.403 INFO [stderr]   --> src/server.rs:55:9
Dec 18 01:46:00.403 INFO [stderr]    |
Dec 18 01:46:00.403 INFO [stderr] 55 |     use ::std::io::prelude::*;
Dec 18 01:46:00.403 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:00.403 INFO [stderr] 
Dec 18 01:46:00.403 INFO [stderr] warning: unused import: `::std::net::TcpStream`
Dec 18 01:46:00.403 INFO [stderr]   --> src/server.rs:56:9
Dec 18 01:46:00.403 INFO [stderr]    |
Dec 18 01:46:00.403 INFO [stderr] 56 |     use ::std::net::TcpStream;
Dec 18 01:46:00.403 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:00.403 INFO [stderr] 
Dec 18 01:46:00.403 INFO [stderr] warning: unused import: `super::*`
Dec 18 01:46:00.403 INFO [stderr]   --> src/value.rs:83:9
Dec 18 01:46:00.403 INFO [stderr]    |
Dec 18 01:46:00.403 INFO [stderr] 83 |     use super::*;
Dec 18 01:46:00.403 INFO [stderr]    |         ^^^^^^^^
Dec 18 01:46:00.403 INFO [stderr] 
Dec 18 01:46:00.748 INFO [stderr] warning: method is never used: `is_err`
Dec 18 01:46:00.749 INFO [stderr]   --> src/response.rs:14:5
Dec 18 01:46:00.749 INFO [stderr]    |
Dec 18 01:46:00.749 INFO [stderr] 14 |     pub fn is_err(&self) -> bool {
Dec 18 01:46:00.749 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:00.750 INFO [stderr]    |
Dec 18 01:46:00.750 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 18 01:46:00.750 INFO [stderr] 
Dec 18 01:46:00.750 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 01:46:00.750 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:46:00.751 INFO [stderr]   |
Dec 18 01:46:00.751 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:00.751 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:00.751 INFO [stderr]   |
Dec 18 01:46:00.752 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 01:46:00.752 INFO [stderr] 
Dec 18 01:46:00.752 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 18 01:46:00.752 INFO [stderr]  --> src/main.rs:1:41
Dec 18 01:46:00.753 INFO [stderr]   |
Dec 18 01:46:00.753 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:00.753 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 18 01:46:00.753 INFO [stderr] 
Dec 18 01:46:00.902 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 01:46:00.903 INFO [stderr]  --> src/main.rs:1:12
Dec 18 01:46:00.903 INFO [stderr]   |
Dec 18 01:46:00.903 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:00.904 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 18 01:46:00.904 INFO [stderr]   |
Dec 18 01:46:00.904 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 18 01:46:00.905 INFO [stderr] 
Dec 18 01:46:00.906 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 18 01:46:00.906 INFO [stderr]  --> src/main.rs:1:41
Dec 18 01:46:00.906 INFO [stderr]   |
Dec 18 01:46:00.907 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 18 01:46:00.907 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 18 01:46:00.907 INFO [stderr] 
Dec 18 01:46:00.961 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.57s
Dec 18 01:46:02.014 INFO running `"docker" "inspect" "ed0a0178e9be5805b2a90a1e38b3783f63b253a7d338d889027c70cc52c8660e"`
Dec 18 01:46:02.296 INFO running `"docker" "rm" "-f" "ed0a0178e9be5805b2a90a1e38b3783f63b253a7d338d889027c70cc52c8660e"`
Dec 18 01:46:02.632 INFO [stdout] ed0a0178e9be5805b2a90a1e38b3783f63b253a7d338d889027c70cc52c8660e