[INFO] updating cached repository irtefa/line-chat
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/irtefa/line-chat
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/irtefa/line-chat" "work/ex/beta-1.37-6/sources/1.36.0/gh/irtefa/line-chat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/1.36.0/gh/irtefa/line-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/irtefa/line-chat" "work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/irtefa/line-chat"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/irtefa/line-chat'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] a45bf21e837040e921a33c8fa92c44b2489376eb
[INFO] sha for GitHub repo irtefa/line-chat: a45bf21e837040e921a33c8fa92c44b2489376eb
[INFO] validating manifest of irtefa/line-chat on toolchain 1.36.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of irtefa/line-chat on toolchain beta-2019-07-23
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing irtefa/line-chat
[INFO] finished frobbing irtefa/line-chat
[INFO] frobbed toml for irtefa/line-chat written to work/ex/beta-1.37-6/sources/1.36.0/gh/irtefa/line-chat/Cargo.toml
[INFO] started frobbing irtefa/line-chat
[INFO] finished frobbing irtefa/line-chat
[INFO] frobbed toml for irtefa/line-chat written to work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/irtefa/line-chat/Cargo.toml
[INFO] crate irtefa/line-chat already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.36.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-07-23" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing irtefa/line-chat against beta-2019-07-23 for beta-1.37-6
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/irtefa/line-chat:/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=warn" "-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" "+beta-2019-07-23" "build" "--frozen"`
[INFO] [stdout] f6ac9e9a2166a3b46c12c431ec86257ab52cfc64d2f62ba9d97ca500d3a54d4a
[INFO] running `"docker" "start" "-a" "f6ac9e9a2166a3b46c12c431ec86257ab52cfc64d2f62ba9d97ca500d3a54d4a"`
[INFO] [stderr]    Compiling futures v0.1.18
[INFO] [stderr]    Compiling iovec v0.1.2
[INFO] [stderr]    Compiling net2 v0.2.31
[INFO] [stderr]    Compiling log v0.3.9
[INFO] [stderr]    Compiling bytes v0.4.6
[INFO] [stderr]    Compiling mio v0.6.13
[INFO] [stderr]    Compiling tokio-io v0.1.5
[INFO] [stderr]    Compiling tokio v0.1.1
[INFO] [stderr]    Compiling line-chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]  --> src/main.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 9 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stderr]   |                               ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AsyncRead`
[INFO] [stderr]   --> src/main.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tokio_io::{AsyncRead};
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Either`, `self`
[INFO] [stderr]   --> src/main.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 | use futures::future::{self, Either};
[INFO] [stderr]    |                       ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufMut`, `BytesMut`
[INFO] [stderr]   --> src/main.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | use bytes::{BytesMut, Bytes, BufMut};
[INFO] [stderr]    |             ^^^^^^^^         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]   --> src/main.rs:16:15
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::io::{self, Write};
[INFO] [stderr]    |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::rc::Rc;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]   --> src/main.rs:33:53
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let server = listener.incoming().for_each(move |socket| {
[INFO] [stderr]    |                                                     ^^^^^^ help: consider prefixing with an underscore: `_socket`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Tx`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | type Tx = mpsc::UnboundedSender<Bytes>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Rx`
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | type Rx = mpsc::UnboundedReceiver<Bytes>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 12.86s
[INFO] running `"docker" "inspect" "f6ac9e9a2166a3b46c12c431ec86257ab52cfc64d2f62ba9d97ca500d3a54d4a"`
[INFO] running `"docker" "rm" "-f" "f6ac9e9a2166a3b46c12c431ec86257ab52cfc64d2f62ba9d97ca500d3a54d4a"`
[INFO] [stdout] f6ac9e9a2166a3b46c12c431ec86257ab52cfc64d2f62ba9d97ca500d3a54d4a
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/irtefa/line-chat:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen" "--no-run"`
[INFO] [stdout] d72bd630bc720ef7a1d9a39d5467122e1e980659c5d22a2b521148763b13d644
[INFO] running `"docker" "start" "-a" "d72bd630bc720ef7a1d9a39d5467122e1e980659c5d22a2b521148763b13d644"`
[INFO] [stderr]    Compiling line-chat v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `TcpStream`
[INFO] [stderr]  --> src/main.rs:9:31
[INFO] [stderr]   |
[INFO] [stderr] 9 | use tokio::net::{TcpListener, TcpStream};
[INFO] [stderr]   |                               ^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `AsyncRead`
[INFO] [stderr]   --> src/main.rs:10:16
[INFO] [stderr]    |
[INFO] [stderr] 10 | use tokio_io::{AsyncRead};
[INFO] [stderr]    |                ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Either`, `self`
[INFO] [stderr]   --> src/main.rs:13:23
[INFO] [stderr]    |
[INFO] [stderr] 13 | use futures::future::{self, Either};
[INFO] [stderr]    |                       ^^^^  ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `BufMut`, `BytesMut`
[INFO] [stderr]   --> src/main.rs:14:13
[INFO] [stderr]    |
[INFO] [stderr] 14 | use bytes::{BytesMut, Bytes, BufMut};
[INFO] [stderr]    |             ^^^^^^^^         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Write`, `self`
[INFO] [stderr]   --> src/main.rs:16:15
[INFO] [stderr]    |
[INFO] [stderr] 16 | use std::io::{self, Write};
[INFO] [stderr]    |               ^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::cell::RefCell`
[INFO] [stderr]   --> src/main.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::cell::RefCell;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashMap`
[INFO] [stderr]   --> src/main.rs:18:5
[INFO] [stderr]    |
[INFO] [stderr] 18 | use std::collections::HashMap;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::rc::Rc`
[INFO] [stderr]   --> src/main.rs:20:5
[INFO] [stderr]    |
[INFO] [stderr] 20 | use std::rc::Rc;
[INFO] [stderr]    |     ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `socket`
[INFO] [stderr]   --> src/main.rs:33:53
[INFO] [stderr]    |
[INFO] [stderr] 33 |     let server = listener.incoming().for_each(move |socket| {
[INFO] [stderr]    |                                                     ^^^^^^ help: consider prefixing with an underscore: `_socket`
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Tx`
[INFO] [stderr]   --> src/main.rs:23:1
[INFO] [stderr]    |
[INFO] [stderr] 23 | type Tx = mpsc::UnboundedSender<Bytes>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: type alias is never used: `Rx`
[INFO] [stderr]   --> src/main.rs:26:1
[INFO] [stderr]    |
[INFO] [stderr] 26 | type Rx = mpsc::UnboundedReceiver<Bytes>;
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `"docker" "inspect" "d72bd630bc720ef7a1d9a39d5467122e1e980659c5d22a2b521148763b13d644"`
[INFO] running `"docker" "rm" "-f" "d72bd630bc720ef7a1d9a39d5467122e1e980659c5d22a2b521148763b13d644"`
[INFO] [stdout] d72bd630bc720ef7a1d9a39d5467122e1e980659c5d22a2b521148763b13d644
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.37-6/worker-1/beta-2019-07-23:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.37-6/sources/beta-2019-07-23/gh/irtefa/line-chat:/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=warn" "-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" "+beta-2019-07-23" "test" "--frozen"`
[INFO] [stdout] be5f4a668f14c6f1acdcca6614d8f2a47b40392e25a0dbf7f16b57999503548f
[INFO] running `"docker" "start" "-a" "be5f4a668f14c6f1acdcca6614d8f2a47b40392e25a0dbf7f16b57999503548f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/line_chat-6547c49aa155fd53
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "be5f4a668f14c6f1acdcca6614d8f2a47b40392e25a0dbf7f16b57999503548f"`
[INFO] running `"docker" "rm" "-f" "be5f4a668f14c6f1acdcca6614d8f2a47b40392e25a0dbf7f16b57999503548f"`
[INFO] [stdout] be5f4a668f14c6f1acdcca6614d8f2a47b40392e25a0dbf7f16b57999503548f