Dec 11 20:06:28.986 INFO checking darkwater/um against try#aa9aa79c3c583aab59ac9134542d60a780c35e2e for pr-56677
Dec 11 20:06:28.986 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-5/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-5/pr-56677/try#aa9aa79c3c583aab59ac9134542d60a780c35e2e:/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 +aa9aa79c3c583aab59ac9134542d60a780c35e2e-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"`
Dec 11 20:06:29.411 INFO [stdout] f45b214c74e8f12a464e37c4e02e4c494f389f014173fd3855f89a0b034fd00d
Dec 11 20:06:29.413 INFO running `"docker" "start" "-a" "f45b214c74e8f12a464e37c4e02e4c494f389f014173fd3855f89a0b034fd00d"`
Dec 11 20:06:30.903 INFO [stderr] usermod: no changes
Dec 11 20:06:31.093 INFO [stderr]     Checking um v0.1.0 (/source)
Dec 11 20:06:33.191 INFO [stderr] warning: unused import: `TcpListener`
Dec 11 20:06:33.191 INFO [stderr]  --> src/client.rs:7:18
Dec 11 20:06:33.191 INFO [stderr]   |
Dec 11 20:06:33.191 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 11 20:06:33.191 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 11 20:06:33.191 INFO [stderr]   |
Dec 11 20:06:33.191 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:06:33.191 INFO [stderr] 
Dec 11 20:06:33.192 INFO [stderr] warning: unused import: `BufMut`
Dec 11 20:06:33.192 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 11 20:06:33.192 INFO [stderr]   |
Dec 11 20:06:33.192 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 11 20:06:33.192 INFO [stderr]   |             ^^^^^^
Dec 11 20:06:33.192 INFO [stderr] 
Dec 11 20:06:33.192 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 11 20:06:33.192 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 11 20:06:33.192 INFO [stderr]   |
Dec 11 20:06:33.192 INFO [stderr] 5 | use std::fmt::Write;
Dec 11 20:06:33.192 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 20:06:33.192 INFO [stderr] 
Dec 11 20:06:33.196 INFO [stderr] warning: unused import: `super::*`
Dec 11 20:06:33.196 INFO [stderr]   --> src/node.rs:46:9
Dec 11 20:06:33.196 INFO [stderr]    |
Dec 11 20:06:33.196 INFO [stderr] 46 |     use super::*;
Dec 11 20:06:33.196 INFO [stderr]    |         ^^^^^^^^
Dec 11 20:06:33.196 INFO [stderr] 
Dec 11 20:06:33.196 INFO [stderr] warning: unused import: `tokio::io`
Dec 11 20:06:33.196 INFO [stderr]  --> src/server.rs:4:5
Dec 11 20:06:33.196 INFO [stderr]   |
Dec 11 20:06:33.196 INFO [stderr] 4 | use tokio::io;
Dec 11 20:06:33.196 INFO [stderr]   |     ^^^^^^^^^
Dec 11 20:06:33.196 INFO [stderr] 
Dec 11 20:06:33.196 INFO [stderr] warning: unused import: `super::*`
Dec 11 20:06:33.196 INFO [stderr]   --> src/server.rs:54:9
Dec 11 20:06:33.196 INFO [stderr]    |
Dec 11 20:06:33.196 INFO [stderr] 54 |     use super::*;
Dec 11 20:06:33.196 INFO [stderr]    |         ^^^^^^^^
Dec 11 20:06:33.198 INFO [stderr] 
Dec 11 20:06:33.198 INFO [stderr] warning: unused import: `::std::io::prelude::*`
Dec 11 20:06:33.198 INFO [stderr]   --> src/server.rs:55:9
Dec 11 20:06:33.198 INFO [stderr]    |
Dec 11 20:06:33.198 INFO [stderr] 55 |     use ::std::io::prelude::*;
Dec 11 20:06:33.198 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:06:33.198 INFO [stderr] 
Dec 11 20:06:33.198 INFO [stderr] warning: unused import: `::std::net::TcpStream`
Dec 11 20:06:33.198 INFO [stderr]   --> src/server.rs:56:9
Dec 11 20:06:33.198 INFO [stderr]    |
Dec 11 20:06:33.198 INFO [stderr] 56 |     use ::std::net::TcpStream;
Dec 11 20:06:33.198 INFO [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:06:33.198 INFO [stderr] 
Dec 11 20:06:33.198 INFO [stderr] warning: unused import: `super::*`
Dec 11 20:06:33.198 INFO [stderr]   --> src/value.rs:83:9
Dec 11 20:06:33.198 INFO [stderr]    |
Dec 11 20:06:33.198 INFO [stderr] 83 |     use super::*;
Dec 11 20:06:33.198 INFO [stderr]    |         ^^^^^^^^
Dec 11 20:06:33.198 INFO [stderr] 
Dec 11 20:06:33.453 INFO [stderr] warning: unused import: `TcpListener`
Dec 11 20:06:33.453 INFO [stderr]  --> src/client.rs:7:18
Dec 11 20:06:33.453 INFO [stderr]   |
Dec 11 20:06:33.453 INFO [stderr] 7 | use tokio::net::{TcpListener, TcpStream};
Dec 11 20:06:33.453 INFO [stderr]   |                  ^^^^^^^^^^^
Dec 11 20:06:33.453 INFO [stderr]   |
Dec 11 20:06:33.453 INFO [stderr]   = note: #[warn(unused_imports)] on by default
Dec 11 20:06:33.453 INFO [stderr] 
Dec 11 20:06:33.453 INFO [stderr] warning: unused import: `BufMut`
Dec 11 20:06:33.453 INFO [stderr]  --> src/commandcodec.rs:1:13
Dec 11 20:06:33.453 INFO [stderr]   |
Dec 11 20:06:33.453 INFO [stderr] 1 | use bytes::{BufMut, BytesMut};
Dec 11 20:06:33.453 INFO [stderr]   |             ^^^^^^
Dec 11 20:06:33.453 INFO [stderr] 
Dec 11 20:06:33.453 INFO [stderr] warning: unused import: `std::fmt::Write`
Dec 11 20:06:33.453 INFO [stderr]  --> src/commandcodec.rs:5:5
Dec 11 20:06:33.453 INFO [stderr]   |
Dec 11 20:06:33.453 INFO [stderr] 5 | use std::fmt::Write;
Dec 11 20:06:33.453 INFO [stderr]   |     ^^^^^^^^^^^^^^^
Dec 11 20:06:33.453 INFO [stderr] 
Dec 11 20:06:33.453 INFO [stderr] warning: unused import: `tokio::io`
Dec 11 20:06:33.453 INFO [stderr]  --> src/server.rs:4:5
Dec 11 20:06:33.453 INFO [stderr]   |
Dec 11 20:06:33.453 INFO [stderr] 4 | use tokio::io;
Dec 11 20:06:33.453 INFO [stderr]   |     ^^^^^^^^^
Dec 11 20:06:33.453 INFO [stderr] 
Dec 11 20:06:33.608 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 20:06:33.608 INFO [stderr]  --> src/main.rs:1:12
Dec 11 20:06:33.608 INFO [stderr]   |
Dec 11 20:06:33.608 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 11 20:06:33.608 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:06:33.608 INFO [stderr]   |
Dec 11 20:06:33.608 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 20:06:33.608 INFO [stderr] 
Dec 11 20:06:33.609 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 11 20:06:33.609 INFO [stderr]  --> src/main.rs:1:41
Dec 11 20:06:33.609 INFO [stderr]   |
Dec 11 20:06:33.609 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 11 20:06:33.609 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 11 20:06:33.609 INFO [stderr] 
Dec 11 20:06:33.755 INFO [stderr] warning: method is never used: `is_err`
Dec 11 20:06:33.755 INFO [stderr]   --> src/response.rs:14:5
Dec 11 20:06:33.755 INFO [stderr]    |
Dec 11 20:06:33.755 INFO [stderr] 14 |     pub fn is_err(&self) -> bool {
Dec 11 20:06:33.755 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:06:33.755 INFO [stderr]    |
Dec 11 20:06:33.755 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 11 20:06:33.755 INFO [stderr] 
Dec 11 20:06:33.755 INFO [stderr] warning: the feature `match_default_bindings` has been stable since 1.26.0 and no longer requires an attribute to enable
Dec 11 20:06:33.755 INFO [stderr]  --> src/main.rs:1:12
Dec 11 20:06:33.755 INFO [stderr]   |
Dec 11 20:06:33.755 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 11 20:06:33.755 INFO [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^
Dec 11 20:06:33.755 INFO [stderr]   |
Dec 11 20:06:33.755 INFO [stderr]   = note: #[warn(stable_features)] on by default
Dec 11 20:06:33.755 INFO [stderr] 
Dec 11 20:06:33.756 INFO [stderr] warning: the feature `option_filter` has been stable since 1.27.0 and no longer requires an attribute to enable
Dec 11 20:06:33.756 INFO [stderr]  --> src/main.rs:1:41
Dec 11 20:06:33.756 INFO [stderr]   |
Dec 11 20:06:33.756 INFO [stderr] 1 | #![feature(match_default_bindings, nll, option_filter, try_trait)]
Dec 11 20:06:33.756 INFO [stderr]   |                                         ^^^^^^^^^^^^^
Dec 11 20:06:33.756 INFO [stderr] 
Dec 11 20:06:33.782 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.83s
Dec 11 20:06:33.792 INFO [stderr] su: No module specific data is present
Dec 11 20:06:34.703 INFO running `"docker" "inspect" "f45b214c74e8f12a464e37c4e02e4c494f389f014173fd3855f89a0b034fd00d"`
Dec 11 20:06:34.831 INFO running `"docker" "rm" "-f" "f45b214c74e8f12a464e37c4e02e4c494f389f014173fd3855f89a0b034fd00d"`
Dec 11 20:06:34.930 INFO [stdout] f45b214c74e8f12a464e37c4e02e4c494f389f014173fd3855f89a0b034fd00d