[INFO] cloning repository zerovolts/rust-chat [INFO] running `"git" "clone" "--bare" "git://github.com/zerovolts/rust-chat.git" "work/cache/sources/gh/zerovolts/rust-chat"` [INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/zerovolts/rust-chat'... [INFO] running `"git" "clone" "work/cache/sources/gh/zerovolts/rust-chat" "work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zerovolts/rust-chat"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zerovolts/rust-chat'... [INFO] [stderr] done. [INFO] running `"git" "clone" "work/cache/sources/gh/zerovolts/rust-chat" "work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zerovolts/rust-chat"` [INFO] [stderr] Cloning into 'work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zerovolts/rust-chat'... [INFO] [stderr] done. [INFO] running `"git" "rev-parse" "HEAD"` [INFO] [stdout] 334cd14c9719c6d039b62c9c6285564237769ad3 [INFO] sha for GitHub repo zerovolts/rust-chat: 334cd14c9719c6d039b62c9c6285564237769ad3 [INFO] validating manifest of zerovolts/rust-chat on toolchain master#c8865d8e195813ade6b84434ac9f8850e7112d1a [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] validating manifest of zerovolts/rust-chat on toolchain try#e212b7d492c96d3837691ba29d32d5f468933fb8 [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "read-manifest" "--manifest-path" "Cargo.toml"` [INFO] started frobbing zerovolts/rust-chat [INFO] finished frobbing zerovolts/rust-chat [INFO] frobbed toml for zerovolts/rust-chat written to work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zerovolts/rust-chat/Cargo.toml [INFO] started frobbing zerovolts/rust-chat [INFO] finished frobbing zerovolts/rust-chat [INFO] frobbed toml for zerovolts/rust-chat written to work/ex/pr-61629/sources/try#e212b7d492c96d3837691ba29d32d5f468933fb8/gh/zerovolts/rust-chat/Cargo.toml [INFO] crate zerovolts/rust-chat already has a lockfile, it will not be regenerated [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+e212b7d492c96d3837691ba29d32d5f468933fb8-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"` [INFO] testing zerovolts/rust-chat against master#c8865d8e195813ade6b84434ac9f8850e7112d1a for pr-61629 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zerovolts/rust-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=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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "build" "--frozen"` [INFO] [stdout] 63d6e9616c8ad3c381adeeb692eb76930dc151e270e19d6f2d4dbd6e84890237 [INFO] running `"docker" "start" "-a" "63d6e9616c8ad3c381adeeb692eb76930dc151e270e19d6f2d4dbd6e84890237"` [INFO] [stderr] Compiling rust-chat v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Write` [INFO] [stderr] --> src/server.rs:3:21 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Read, Write}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `TcpListener` [INFO] [stderr] --> src/client.rs:1:16 [INFO] [stderr] | [INFO] [stderr] 1 | use std::net::{TcpListener, TcpStream}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Arc`, `Mutex` [INFO] [stderr] --> src/client.rs:2:17 [INFO] [stderr] | [INFO] [stderr] 2 | use std::sync::{Arc, Mutex}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/client.rs:3:15 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Read, Write}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/client.rs:4:11 [INFO] [stderr] | [INFO] [stderr] 4 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/server.rs:32:21 [INFO] [stderr] | [INFO] [stderr] 32 | 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: variable does not need to be mutable [INFO] [stderr] --> src/server.rs:28:25 [INFO] [stderr] | [INFO] [stderr] 28 | let mut stream = Arc::new(Mutex::new(stream)); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/server.rs:37:22 [INFO] [stderr] | [INFO] [stderr] 37 | fn handle_client(mut stream: Arc>) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `address` [INFO] [stderr] --> src/server.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | address: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `messages` [INFO] [stderr] --> src/server.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | messages: Vec [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `address` [INFO] [stderr] --> src/client.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | address: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/server.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | stream.lock().unwrap().read_to_string(&mut buffer); [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/client.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | self.stream.write(String::from(message).as_bytes()); [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 1.10s [INFO] running `"docker" "inspect" "63d6e9616c8ad3c381adeeb692eb76930dc151e270e19d6f2d4dbd6e84890237"` [INFO] running `"docker" "rm" "-f" "63d6e9616c8ad3c381adeeb692eb76930dc151e270e19d6f2d4dbd6e84890237"` [INFO] [stdout] 63d6e9616c8ad3c381adeeb692eb76930dc151e270e19d6f2d4dbd6e84890237 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zerovolts/rust-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=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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen" "--no-run"` [INFO] [stdout] 3d3ee8dad7d58ecfef21febb52020a9151c054e2d593036a9cc0364d21cba8c1 [INFO] running `"docker" "start" "-a" "3d3ee8dad7d58ecfef21febb52020a9151c054e2d593036a9cc0364d21cba8c1"` [INFO] [stderr] Compiling rust-chat v0.1.0 (/opt/crater/workdir) [INFO] [stderr] warning: unused import: `Write` [INFO] [stderr] --> src/server.rs:3:21 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Read, Write}; [INFO] [stderr] | ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_imports)] on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `TcpListener` [INFO] [stderr] --> src/client.rs:1:16 [INFO] [stderr] | [INFO] [stderr] 1 | use std::net::{TcpListener, TcpStream}; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Arc`, `Mutex` [INFO] [stderr] --> src/client.rs:2:17 [INFO] [stderr] | [INFO] [stderr] 2 | use std::sync::{Arc, Mutex}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/client.rs:3:15 [INFO] [stderr] | [INFO] [stderr] 3 | use std::io::{Read, Write}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused imports: `thread`, `time` [INFO] [stderr] --> src/client.rs:4:11 [INFO] [stderr] | [INFO] [stderr] 4 | use std::{thread, time}; [INFO] [stderr] | ^^^^^^ ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/server.rs:32:21 [INFO] [stderr] | [INFO] [stderr] 32 | 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: variable does not need to be mutable [INFO] [stderr] --> src/server.rs:28:25 [INFO] [stderr] | [INFO] [stderr] 28 | let mut stream = Arc::new(Mutex::new(stream)); [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] | [INFO] [stderr] = note: #[warn(unused_mut)] on by default [INFO] [stderr] [INFO] [stderr] warning: variable does not need to be mutable [INFO] [stderr] --> src/server.rs:37:22 [INFO] [stderr] | [INFO] [stderr] 37 | fn handle_client(mut stream: Arc>) { [INFO] [stderr] | ----^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never used: `address` [INFO] [stderr] --> src/server.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | address: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: #[warn(dead_code)] on by default [INFO] [stderr] [INFO] [stderr] warning: field is never used: `messages` [INFO] [stderr] --> src/server.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | messages: Vec [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: field is never used: `address` [INFO] [stderr] --> src/client.rs:7:5 [INFO] [stderr] | [INFO] [stderr] 7 | address: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/server.rs:39:9 [INFO] [stderr] | [INFO] [stderr] 39 | stream.lock().unwrap().read_to_string(&mut buffer); [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/client.rs:25:9 [INFO] [stderr] | [INFO] [stderr] 25 | self.stream.write(String::from(message).as_bytes()); [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 0.55s [INFO] running `"docker" "inspect" "3d3ee8dad7d58ecfef21febb52020a9151c054e2d593036a9cc0364d21cba8c1"` [INFO] running `"docker" "rm" "-f" "3d3ee8dad7d58ecfef21febb52020a9151c054e2d593036a9cc0364d21cba8c1"` [INFO] [stdout] 3d3ee8dad7d58ecfef21febb52020a9151c054e2d593036a9cc0364d21cba8c1 [INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-61629/worker-2/master#c8865d8e195813ade6b84434ac9f8850e7112d1a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-61629/sources/master#c8865d8e195813ade6b84434ac9f8850e7112d1a/gh/zerovolts/rust-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=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" "+c8865d8e195813ade6b84434ac9f8850e7112d1a-alt" "test" "--frozen"` [INFO] [stdout] 71939c738c39a3ee4ab67dbd471691484d64d08aedb5d80910c1e0862f3108af [INFO] running `"docker" "start" "-a" "71939c738c39a3ee4ab67dbd471691484d64d08aedb5d80910c1e0862f3108af"` [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.02s [INFO] [stdout] [INFO] [stderr] Running /opt/crater/target/debug/deps/rust_chat-3f4f8d8405a98cc9 [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" "71939c738c39a3ee4ab67dbd471691484d64d08aedb5d80910c1e0862f3108af"` [INFO] running `"docker" "rm" "-f" "71939c738c39a3ee4ab67dbd471691484d64d08aedb5d80910c1e0862f3108af"` [INFO] [stdout] 71939c738c39a3ee4ab67dbd471691484d64d08aedb5d80910c1e0862f3108af