[INFO] updating cached repository mas-yo/ragtime-old
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/mas-yo/ragtime-old
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/mas-yo/ragtime-old" "work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mas-yo/ragtime-old"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mas-yo/ragtime-old'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/mas-yo/ragtime-old" "work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mas-yo/ragtime-old"`
[INFO] [stderr] Cloning into 'work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mas-yo/ragtime-old'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] f30656bb8dfb8c8f7015abd8aa5462a09a907b70
[INFO] sha for GitHub repo mas-yo/ragtime-old: f30656bb8dfb8c8f7015abd8aa5462a09a907b70
[INFO] validating manifest of mas-yo/ragtime-old on toolchain master#0f88167f89fffe321590c5148f21b7d51d44388d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of mas-yo/ragtime-old on toolchain try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing mas-yo/ragtime-old
[INFO] removed workspace from mas-yo/ragtime-old
[INFO] finished frobbing mas-yo/ragtime-old
[INFO] frobbed toml for mas-yo/ragtime-old written to work/ex/pr-58948/sources/master#0f88167f89fffe321590c5148f21b7d51d44388d/gh/mas-yo/ragtime-old/Cargo.toml
[INFO] started frobbing mas-yo/ragtime-old
[INFO] removed workspace from mas-yo/ragtime-old
[INFO] finished frobbing mas-yo/ragtime-old
[INFO] frobbed toml for mas-yo/ragtime-old written to work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mas-yo/ragtime-old/Cargo.toml
[INFO] crate mas-yo/ragtime-old already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+0f88167f89fffe321590c5148f21b7d51d44388d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking mas-yo/ragtime-old against try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b for pr-58948
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-58948/worker-3/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-58948/sources/try#a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b/gh/mas-yo/ragtime-old:/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" "+a829e31f924ec11e400e8d0c2fd2c4bb8937ae6b-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] a5366bb162c9ff882e26cca93c73c58aee04f6078c37ac600988ff3210693f40
[INFO] running `"docker" "start" "-a" "a5366bb162c9ff882e26cca93c73c58aee04f6078c37ac600988ff3210693f40"`
[INFO] [stderr]     Checking env_logger v0.4.3
[INFO] [stderr]     Checking ragtime v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `VecDeque`
[INFO] [stderr]  --> src/network.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::{HashMap, VecDeque};
[INFO] [stderr]   |                                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Receiver`, `Sender`, `channel`
[INFO] [stderr]  --> src/network.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::mpsc::{Sender, Receiver, channel};
[INFO] [stderr]   |                       ^^^^^^  ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rc`, `Weak`
[INFO] [stderr]  --> src/network.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::{Weak, Rc};
[INFO] [stderr]   |               ^^^^  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/network.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/network.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::ToSocketAddrs`
[INFO] [stderr]   --> src/network.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::net::ToSocketAddrs;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]   --> src/network.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::net::SocketAddr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/network.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io::{Write, Read, BufReader, BufRead};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BigEndian`, `ByteOrder`
[INFO] [stderr]   --> src/network.rs:15:23
[INFO] [stderr]    |
[INFO] [stderr] 15 | use self::byteorder::{BigEndian, ByteOrder};
[INFO] [stderr]    |                       ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Read`, `Write`
[INFO] [stderr]  --> src/string_message.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Write, Read, BufReader, BufRead};
[INFO] [stderr]   |               ^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::PartialEq`
[INFO] [stderr]  --> src/room.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::PartialEq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/room.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Receiver`
[INFO] [stderr]  --> src/room.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::mpsc::{Sender,Receiver};
[INFO] [stderr]   |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `VecDeque`
[INFO] [stderr]  --> src/network.rs:5:33
[INFO] [stderr]   |
[INFO] [stderr] 5 | use std::collections::{HashMap, VecDeque};
[INFO] [stderr]   |                                 ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Receiver`, `Sender`, `channel`
[INFO] [stderr]  --> src/network.rs:6:23
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::mpsc::{Sender, Receiver, channel};
[INFO] [stderr]   |                       ^^^^^^  ^^^^^^^^  ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Rc`, `Weak`
[INFO] [stderr]  --> src/network.rs:7:15
[INFO] [stderr]   |
[INFO] [stderr] 7 | use std::rc::{Weak, Rc};
[INFO] [stderr]   |               ^^^^  ^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]  --> src/network.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use std::cell::RefCell;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::thread`
[INFO] [stderr]  --> src/network.rs:9:5
[INFO] [stderr]   |
[INFO] [stderr] 9 | use std::thread;
[INFO] [stderr]   |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::ToSocketAddrs`
[INFO] [stderr]   --> src/network.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use std::net::ToSocketAddrs;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::net::SocketAddr`
[INFO] [stderr]   --> src/network.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use std::net::SocketAddr;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Read`
[INFO] [stderr]   --> src/network.rs:12:22
[INFO] [stderr]    |
[INFO] [stderr] 12 | use std::io::{Write, Read, BufReader, BufRead};
[INFO] [stderr]    |                      ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BigEndian`, `ByteOrder`
[INFO] [stderr]   --> src/network.rs:15:23
[INFO] [stderr]    |
[INFO] [stderr] 15 | use self::byteorder::{BigEndian, ByteOrder};
[INFO] [stderr]    |                       ^^^^^^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufReader`, `Read`, `Write`
[INFO] [stderr]  --> src/string_message.rs:1:15
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::io::{Write, Read, BufReader, BufRead};
[INFO] [stderr]   |               ^^^^^  ^^^^  ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cmp::PartialEq`
[INFO] [stderr]  --> src/room.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::cmp::PartialEq;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::Borrow`
[INFO] [stderr]  --> src/room.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::borrow::Borrow;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Receiver`
[INFO] [stderr]  --> src/room.rs:6:30
[INFO] [stderr]   |
[INFO] [stderr] 6 | use std::sync::mpsc::{Sender,Receiver};
[INFO] [stderr]   |                              ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/network.rs:89:17
[INFO] [stderr]    |
[INFO] [stderr] 89 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/network.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     id: ConnectionID,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/network.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         self.send_stream.write_all(data);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/network.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 stream.set_nonblocking(true);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/string_message.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         reader.read_line(&mut self.body);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `e`
[INFO] [stderr]   --> src/network.rs:89:17
[INFO] [stderr]    |
[INFO] [stderr] 89 |             Err(e) => {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_e`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `id`
[INFO] [stderr]   --> src/network.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 |     id: ConnectionID,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/network.rs:50:9
[INFO] [stderr]    |
[INFO] [stderr] 50 |         self.send_stream.write_all(data);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_must_use)] on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/network.rs:81:17
[INFO] [stderr]    |
[INFO] [stderr] 81 |                 stream.set_nonblocking(true);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/string_message.rs:14:9
[INFO] [stderr]    |
[INFO] [stderr] 14 |         reader.read_line(&mut self.body);
[INFO] [stderr]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "a5366bb162c9ff882e26cca93c73c58aee04f6078c37ac600988ff3210693f40"`
[INFO] running `"docker" "rm" "-f" "a5366bb162c9ff882e26cca93c73c58aee04f6078c37ac600988ff3210693f40"`
[INFO] [stdout] a5366bb162c9ff882e26cca93c73c58aee04f6078c37ac600988ff3210693f40