Dec 19 16:29:34.465 INFO checking gluaxspeed/r2wc against master#d99a320cba42f661aebfa1293b7b2ec3603dda75 for pr-56955
Dec 19 16:29:34.465 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-2/master#d99a320cba42f661aebfa1293b7b2ec3603dda75:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/master#d99a320cba42f661aebfa1293b7b2ec3603dda75/gh/gluaxspeed/r2wc:/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" "+d99a320cba42f661aebfa1293b7b2ec3603dda75-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 16:29:35.004 INFO [stdout] 720e58375c38c61bc5faee0f1fa7a5758cddb38a107c8abefdc55e321b65588c
Dec 19 16:29:35.006 INFO running `"docker" "start" "-a" "720e58375c38c61bc5faee0f1fa7a5758cddb38a107c8abefdc55e321b65588c"`
Dec 19 16:29:36.840 INFO [stderr]    Compiling ncurses v5.94.0
Dec 19 16:29:36.864 INFO [stderr]     Checking stopwatch v0.0.7
Dec 19 16:29:39.212 INFO [stderr]     Checking r2wc v0.1.0 (/opt/crater/workdir)
Dec 19 16:29:40.372 INFO [stderr] warning: method is never used: `new`
Dec 19 16:29:40.372 INFO [stderr]   --> src/connection/peer.rs:39:5
Dec 19 16:29:40.372 INFO [stderr]    |
Dec 19 16:29:40.372 INFO [stderr] 39 |     pub fn new(stream: TcpStream, who: String) -> Peer {
Dec 19 16:29:40.372 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.372 INFO [stderr]    |
Dec 19 16:29:40.372 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:29:40.372 INFO [stderr] 
Dec 19 16:29:40.372 INFO [stderr] warning: function is never used: `set_server_port`
Dec 19 16:29:40.372 INFO [stderr]   --> src/connection.rs:58:1
Dec 19 16:29:40.372 INFO [stderr]    |
Dec 19 16:29:40.372 INFO [stderr] 58 | pub fn set_server_port() -> String {
Dec 19 16:29:40.372 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.372 INFO [stderr] 
Dec 19 16:29:40.372 INFO [stderr] warning: function is never used: `connect_server`
Dec 19 16:29:40.372 INFO [stderr]   --> src/connection.rs:74:1
Dec 19 16:29:40.372 INFO [stderr]    |
Dec 19 16:29:40.373 INFO [stderr] 74 | pub fn connect_server() -> TcpStream {
Dec 19 16:29:40.373 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.373 INFO [stderr] 
Dec 19 16:29:40.373 INFO [stderr] warning: method is never used: `new_connection`
Dec 19 16:29:40.373 INFO [stderr]   --> src/connection.rs:96:5
Dec 19 16:29:40.373 INFO [stderr]    |
Dec 19 16:29:40.373 INFO [stderr] 96 |     pub fn new_connection(msg_size: usize, taken: Option<bool>) -> Connection {
Dec 19 16:29:40.373 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.373 INFO [stderr] 
Dec 19 16:29:40.373 INFO [stderr] warning: method is never used: `new_client_connection`
Dec 19 16:29:40.373 INFO [stderr]    --> src/connection.rs:129:5
Dec 19 16:29:40.373 INFO [stderr]     |
Dec 19 16:29:40.373 INFO [stderr] 129 |     pub fn new_client_connection(msg_size: usize) -> Connection {
Dec 19 16:29:40.373 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.373 INFO [stderr] 
Dec 19 16:29:40.373 INFO [stderr] warning: method is never used: `await_client`
Dec 19 16:29:40.373 INFO [stderr]    --> src/connection.rs:143:5
Dec 19 16:29:40.373 INFO [stderr]     |
Dec 19 16:29:40.373 INFO [stderr] 143 |     pub fn await_client(&mut self, server: &TcpListener) {
Dec 19 16:29:40.373 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.373 INFO [stderr] 
Dec 19 16:29:40.460 INFO [stderr] warning: method is never used: `get_client`
Dec 19 16:29:40.460 INFO [stderr]   --> src/connection/peer.rs:17:5
Dec 19 16:29:40.460 INFO [stderr]    |
Dec 19 16:29:40.460 INFO [stderr] 17 |     pub fn get_client(server: &TcpListener) -> Option<Peer> {
Dec 19 16:29:40.460 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.460 INFO [stderr]    |
Dec 19 16:29:40.460 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:29:40.460 INFO [stderr] 
Dec 19 16:29:40.460 INFO [stderr] warning: function is never used: `set_port`
Dec 19 16:29:40.461 INFO [stderr]   --> src/connection.rs:29:1
Dec 19 16:29:40.461 INFO [stderr]    |
Dec 19 16:29:40.461 INFO [stderr] 29 | pub fn set_port() -> String {
Dec 19 16:29:40.461 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: function is never used: `create_server`
Dec 19 16:29:40.461 INFO [stderr]   --> src/connection.rs:45:1
Dec 19 16:29:40.461 INFO [stderr]    |
Dec 19 16:29:40.461 INFO [stderr] 45 | pub fn create_server() -> TcpListener {
Dec 19 16:29:40.461 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: method is never used: `get_peer`
Dec 19 16:29:40.461 INFO [stderr]   --> src/connection.rs:84:5
Dec 19 16:29:40.461 INFO [stderr]    |
Dec 19 16:29:40.461 INFO [stderr] 84 |     pub fn get_peer(&self) -> Option<Peer> {
Dec 19 16:29:40.461 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: method is never used: `new_connection`
Dec 19 16:29:40.461 INFO [stderr]   --> src/connection.rs:96:5
Dec 19 16:29:40.461 INFO [stderr]    |
Dec 19 16:29:40.461 INFO [stderr] 96 |     pub fn new_connection(msg_size: usize, taken: Option<bool>) -> Connection {
Dec 19 16:29:40.461 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: method is never used: `new_server_connection`
Dec 19 16:29:40.461 INFO [stderr]    --> src/connection.rs:111:5
Dec 19 16:29:40.461 INFO [stderr]     |
Dec 19 16:29:40.461 INFO [stderr] 111 |     pub fn new_server_connection(msg_size: usize) -> (Connection, TcpListener) {
Dec 19 16:29:40.461 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: method is never used: `await_client`
Dec 19 16:29:40.461 INFO [stderr]    --> src/connection.rs:143:5
Dec 19 16:29:40.461 INFO [stderr]     |
Dec 19 16:29:40.461 INFO [stderr] 143 |     pub fn await_client(&mut self, server: &TcpListener) {
Dec 19 16:29:40.461 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: method is never used: `await_client_timeout`
Dec 19 16:29:40.461 INFO [stderr]    --> src/connection.rs:162:5
Dec 19 16:29:40.461 INFO [stderr]     |
Dec 19 16:29:40.461 INFO [stderr] 162 |     pub fn await_client_timeout(&mut self, server: &TcpListener) {
Dec 19 16:29:40.461 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.461 INFO [stderr] warning: method is never used: `reject_other_clients`
Dec 19 16:29:40.461 INFO [stderr]    --> src/connection.rs:186:5
Dec 19 16:29:40.461 INFO [stderr]     |
Dec 19 16:29:40.461 INFO [stderr] 186 |     pub fn reject_other_clients(&self, server: &TcpListener) -> (bool, Option<Peer>) {
Dec 19 16:29:40.461 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.461 INFO [stderr] 
Dec 19 16:29:40.508 INFO [stderr] warning: method is never used: `new`
Dec 19 16:29:40.508 INFO [stderr]   --> src/connection/peer.rs:39:5
Dec 19 16:29:40.508 INFO [stderr]    |
Dec 19 16:29:40.508 INFO [stderr] 39 |     pub fn new(stream: TcpStream, who: String) -> Peer {
Dec 19 16:29:40.508 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.508 INFO [stderr]    |
Dec 19 16:29:40.508 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:29:40.508 INFO [stderr] 
Dec 19 16:29:40.508 INFO [stderr] warning: function is never used: `set_server_port`
Dec 19 16:29:40.508 INFO [stderr]   --> src/connection.rs:58:1
Dec 19 16:29:40.508 INFO [stderr]    |
Dec 19 16:29:40.508 INFO [stderr] 58 | pub fn set_server_port() -> String {
Dec 19 16:29:40.508 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.508 INFO [stderr] 
Dec 19 16:29:40.508 INFO [stderr] warning: function is never used: `connect_server`
Dec 19 16:29:40.508 INFO [stderr]   --> src/connection.rs:74:1
Dec 19 16:29:40.508 INFO [stderr]    |
Dec 19 16:29:40.508 INFO [stderr] 74 | pub fn connect_server() -> TcpStream {
Dec 19 16:29:40.508 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.508 INFO [stderr] 
Dec 19 16:29:40.508 INFO [stderr] warning: method is never used: `new_connection`
Dec 19 16:29:40.509 INFO [stderr]   --> src/connection.rs:96:5
Dec 19 16:29:40.509 INFO [stderr]    |
Dec 19 16:29:40.509 INFO [stderr] 96 |     pub fn new_connection(msg_size: usize, taken: Option<bool>) -> Connection {
Dec 19 16:29:40.509 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.509 INFO [stderr] 
Dec 19 16:29:40.509 INFO [stderr] warning: method is never used: `new_client_connection`
Dec 19 16:29:40.509 INFO [stderr]    --> src/connection.rs:129:5
Dec 19 16:29:40.509 INFO [stderr]     |
Dec 19 16:29:40.509 INFO [stderr] 129 |     pub fn new_client_connection(msg_size: usize) -> Connection {
Dec 19 16:29:40.509 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.509 INFO [stderr] 
Dec 19 16:29:40.509 INFO [stderr] warning: method is never used: `await_client`
Dec 19 16:29:40.509 INFO [stderr]    --> src/connection.rs:143:5
Dec 19 16:29:40.509 INFO [stderr]     |
Dec 19 16:29:40.509 INFO [stderr] 143 |     pub fn await_client(&mut self, server: &TcpListener) {
Dec 19 16:29:40.509 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.509 INFO [stderr] 
Dec 19 16:29:40.708 INFO [stderr] warning: method is never used: `get_client`
Dec 19 16:29:40.708 INFO [stderr]   --> src/connection/peer.rs:17:5
Dec 19 16:29:40.708 INFO [stderr]    |
Dec 19 16:29:40.708 INFO [stderr] 17 |     pub fn get_client(server: &TcpListener) -> Option<Peer> {
Dec 19 16:29:40.708 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.708 INFO [stderr]    |
Dec 19 16:29:40.708 INFO [stderr]    = note: #[warn(dead_code)] on by default
Dec 19 16:29:40.708 INFO [stderr] 
Dec 19 16:29:40.708 INFO [stderr] warning: function is never used: `set_port`
Dec 19 16:29:40.708 INFO [stderr]   --> src/connection.rs:29:1
Dec 19 16:29:40.708 INFO [stderr]    |
Dec 19 16:29:40.708 INFO [stderr] 29 | pub fn set_port() -> String {
Dec 19 16:29:40.708 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.708 INFO [stderr] 
Dec 19 16:29:40.708 INFO [stderr] warning: function is never used: `create_server`
Dec 19 16:29:40.709 INFO [stderr]   --> src/connection.rs:45:1
Dec 19 16:29:40.709 INFO [stderr]    |
Dec 19 16:29:40.709 INFO [stderr] 45 | pub fn create_server() -> TcpListener {
Dec 19 16:29:40.709 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.709 INFO [stderr] warning: method is never used: `get_peer`
Dec 19 16:29:40.709 INFO [stderr]   --> src/connection.rs:84:5
Dec 19 16:29:40.709 INFO [stderr]    |
Dec 19 16:29:40.709 INFO [stderr] 84 |     pub fn get_peer(&self) -> Option<Peer> {
Dec 19 16:29:40.709 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.709 INFO [stderr] warning: method is never used: `new_connection`
Dec 19 16:29:40.709 INFO [stderr]   --> src/connection.rs:96:5
Dec 19 16:29:40.709 INFO [stderr]    |
Dec 19 16:29:40.709 INFO [stderr] 96 |     pub fn new_connection(msg_size: usize, taken: Option<bool>) -> Connection {
Dec 19 16:29:40.709 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.709 INFO [stderr] warning: method is never used: `new_server_connection`
Dec 19 16:29:40.709 INFO [stderr]    --> src/connection.rs:111:5
Dec 19 16:29:40.709 INFO [stderr]     |
Dec 19 16:29:40.709 INFO [stderr] 111 |     pub fn new_server_connection(msg_size: usize) -> (Connection, TcpListener) {
Dec 19 16:29:40.709 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.709 INFO [stderr] warning: method is never used: `await_client`
Dec 19 16:29:40.709 INFO [stderr]    --> src/connection.rs:143:5
Dec 19 16:29:40.709 INFO [stderr]     |
Dec 19 16:29:40.709 INFO [stderr] 143 |     pub fn await_client(&mut self, server: &TcpListener) {
Dec 19 16:29:40.709 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.709 INFO [stderr] warning: method is never used: `await_client_timeout`
Dec 19 16:29:40.709 INFO [stderr]    --> src/connection.rs:162:5
Dec 19 16:29:40.709 INFO [stderr]     |
Dec 19 16:29:40.709 INFO [stderr] 162 |     pub fn await_client_timeout(&mut self, server: &TcpListener) {
Dec 19 16:29:40.709 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.709 INFO [stderr] warning: method is never used: `reject_other_clients`
Dec 19 16:29:40.709 INFO [stderr]    --> src/connection.rs:186:5
Dec 19 16:29:40.709 INFO [stderr]     |
Dec 19 16:29:40.709 INFO [stderr] 186 |     pub fn reject_other_clients(&self, server: &TcpListener) -> (bool, Option<Peer>) {
Dec 19 16:29:40.709 INFO [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 16:29:40.709 INFO [stderr] 
Dec 19 16:29:40.748 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.01s
Dec 19 16:29:41.713 INFO running `"docker" "inspect" "720e58375c38c61bc5faee0f1fa7a5758cddb38a107c8abefdc55e321b65588c"`
Dec 19 16:29:41.962 INFO running `"docker" "rm" "-f" "720e58375c38c61bc5faee0f1fa7a5758cddb38a107c8abefdc55e321b65588c"`
Dec 19 16:29:42.228 INFO [stdout] 720e58375c38c61bc5faee0f1fa7a5758cddb38a107c8abefdc55e321b65588c