[INFO] cloning repository https://github.com/olkkoti/codecamp-dummy-rust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/olkkoti/codecamp-dummy-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folkkoti%2Fcodecamp-dummy-rust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folkkoti%2Fcodecamp-dummy-rust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 1ed40ec7bb4231a00467e4de1c3f388989288ef5 [INFO] testing olkkoti/codecamp-dummy-rust against beta-2020-07-24 for beta-1.46-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Folkkoti%2Fcodecamp-dummy-rust" "/workspace/builds/worker-7/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/olkkoti/codecamp-dummy-rust on toolchain beta-2020-07-24 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/olkkoti/codecamp-dummy-rust [INFO] finished tweaking git repo https://github.com/olkkoti/codecamp-dummy-rust [INFO] tweaked toml for git repo https://github.com/olkkoti/codecamp-dummy-rust written to /workspace/builds/worker-7/source/Cargo.toml [INFO] crate git repo https://github.com/olkkoti/codecamp-dummy-rust already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this [INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag. [INFO] the lockfile is outdated, regenerating it [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2020-07-24" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] [stdout] 844a6fd8a867a4c542d9ddb37499bbad5329df3906144f10fb33864b99cd8308 [INFO] running `Command { std: "docker" "start" "-a" "844a6fd8a867a4c542d9ddb37499bbad5329df3906144f10fb33864b99cd8308", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "844a6fd8a867a4c542d9ddb37499bbad5329df3906144f10fb33864b99cd8308", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "844a6fd8a867a4c542d9ddb37499bbad5329df3906144f10fb33864b99cd8308", kill_on_drop: false }` [INFO] [stdout] 844a6fd8a867a4c542d9ddb37499bbad5329df3906144f10fb33864b99cd8308 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] b932809c4e0022ed7dc0fee3cf27e47a85f53ec58934839a8a527837bc4930c3 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "b932809c4e0022ed7dc0fee3cf27e47a85f53ec58934839a8a527837bc4930c3", kill_on_drop: false }` [INFO] [stderr] Compiling rustc-serialize v0.3.24 [INFO] [stderr] Compiling codecamp_dummy_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/lib.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 14 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | socket.send_to(&msg_str.into_bytes(), to); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/bin/client.rs:2:17 [INFO] [stdout] | [INFO] [stdout] 2 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/bin/client.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str` [INFO] [stdout] --> src/bin/client.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::str; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rustc_serialize::json` [INFO] [stdout] --> src/bin/client.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rustc_serialize::json; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/bin/client.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::str; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `codecamp_dummy_rust::read_message` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use codecamp_dummy_rust::read_message; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep` [INFO] [stdout] --> src/main.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | thread::sleep_ms(10000); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ping` [INFO] [stdout] --> src/bin/client.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | let ping = read_message(&socket); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ping` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/main.rs:42:20 [INFO] [stdout] | [INFO] [stdout] 42 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let mut connections: Arc>> = Arc::new(Mutex::new(HashMap::new())); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut connections2 = connections.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `connection_id` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | connection_id: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handleConnect` should have a snake case name [INFO] [stdout] --> src/main.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn handleConnect(msg: &Message, socket: &UdpSocket, connections: &Mutex>) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `handle_connect` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 6.61s [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "b932809c4e0022ed7dc0fee3cf27e47a85f53ec58934839a8a527837bc4930c3", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "b932809c4e0022ed7dc0fee3cf27e47a85f53ec58934839a8a527837bc4930c3", kill_on_drop: false }` [INFO] [stdout] b932809c4e0022ed7dc0fee3cf27e47a85f53ec58934839a8a527837bc4930c3 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e2d96eb07c4af08d3edc9d9394e583874d5e8374c7d66cd073ad7c2954ab8c36 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "e2d96eb07c4af08d3edc9d9394e583874d5e8374c7d66cd073ad7c2954ab8c36", kill_on_drop: false }` [INFO] [stderr] Compiling codecamp_dummy_rust v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/lib.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 14 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | socket.send_to(&msg_str.into_bytes(), to); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str` [INFO] [stdout] --> src/main.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::str; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `codecamp_dummy_rust::read_message` [INFO] [stdout] --> src/main.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | use codecamp_dummy_rust::read_message; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused imports: `Arc`, `Mutex` [INFO] [stdout] --> src/bin/client.rs:2:17 [INFO] [stdout] | [INFO] [stdout] 2 | use std::sync::{Arc, Mutex}; [INFO] [stdout] | ^^^ ^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::thread` [INFO] [stdout] --> src/bin/client.rs:3:5 [INFO] [stdout] | [INFO] [stdout] 3 | use std::thread; [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::str` [INFO] [stdout] --> src/bin/client.rs:4:5 [INFO] [stdout] | [INFO] [stdout] 4 | use std::str; [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep` [INFO] [stdout] --> src/main.rs:28:13 [INFO] [stdout] | [INFO] [stdout] 28 | thread::sleep_ms(10000); [INFO] [stdout] | ^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(deprecated)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `rustc_serialize::json` [INFO] [stdout] --> src/bin/client.rs:5:5 [INFO] [stdout] | [INFO] [stdout] 5 | use rustc_serialize::json; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::collections::HashMap` [INFO] [stdout] --> src/bin/client.rs:6:5 [INFO] [stdout] | [INFO] [stdout] 6 | use std::collections::HashMap; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `ping` [INFO] [stdout] --> src/bin/client.rs:33:13 [INFO] [stdout] | [INFO] [stdout] 33 | let ping = read_message(&socket); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ping` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/main.rs:42:20 [INFO] [stdout] | [INFO] [stdout] 42 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `from` [INFO] [stdout] --> src/lib.rs:14:16 [INFO] [stdout] | [INFO] [stdout] 14 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:21:9 [INFO] [stdout] | [INFO] [stdout] 21 | let mut connections: Arc>> = Arc::new(Mutex::new(HashMap::new())); [INFO] [stdout] | ----^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_mut)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: variable does not need to be mutable [INFO] [stdout] --> src/main.rs:22:9 [INFO] [stdout] | [INFO] [stdout] 22 | let mut connections2 = connections.clone(); [INFO] [stdout] | ----^^^^^^^^^^^^ [INFO] [stdout] | | [INFO] [stdout] | help: remove this `mut` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: field is never read: `connection_id` [INFO] [stdout] --> src/main.rs:14:5 [INFO] [stdout] | [INFO] [stdout] 14 | connection_id: String, [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `handleConnect` should have a snake case name [INFO] [stdout] --> src/main.rs:60:4 [INFO] [stdout] | [INFO] [stdout] 60 | fn handleConnect(msg: &Message, socket: &UdpSocket, connections: &Mutex>) { [INFO] [stdout] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `handle_connect` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(non_snake_case)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused `std::result::Result` that must be used [INFO] [stdout] --> src/lib.rs:9:5 [INFO] [stdout] | [INFO] [stdout] 9 | socket.send_to(&msg_str.into_bytes(), to); [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_must_use)]` on by default [INFO] [stdout] = note: this `Result` may be an `Err` variant, which should be handled [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 8 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 2 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 1.00s [INFO] running `Command { std: "docker" "inspect" "e2d96eb07c4af08d3edc9d9394e583874d5e8374c7d66cd073ad7c2954ab8c36", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e2d96eb07c4af08d3edc9d9394e583874d5e8374c7d66cd073ad7c2954ab8c36", kill_on_drop: false }` [INFO] [stdout] e2d96eb07c4af08d3edc9d9394e583874d5e8374c7d66cd073ad7c2954ab8c36 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2020-07-24" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 71eb9e5f0db6b3f142fe88f97d96c32331c9edb8ac46bfde6075db821ef557d1 [INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap. [INFO] running `Command { std: "docker" "start" "-a" "71eb9e5f0db6b3f142fe88f97d96c32331c9edb8ac46bfde6075db821ef557d1", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/lib.rs:14:16 [INFO] [stderr] | [INFO] [stderr] 14 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | socket.send_to(&msg_str.into_bytes(), to); [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: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/lib.rs:14:16 [INFO] [stderr] | [INFO] [stderr] 14 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused `std::result::Result` that must be used [INFO] [stderr] --> src/lib.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | socket.send_to(&msg_str.into_bytes(), to); [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: 2 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str` [INFO] [stderr] --> src/main.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::str; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `codecamp_dummy_rust::read_message` [INFO] [stderr] --> src/main.rs:9:5 [INFO] [stderr] | [INFO] [stderr] 9 | use codecamp_dummy_rust::read_message; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: use of deprecated item 'std::thread::sleep_ms': replaced by `std::thread::sleep` [INFO] [stderr] --> src/main.rs:28:13 [INFO] [stderr] | [INFO] [stderr] 28 | thread::sleep_ms(10000); [INFO] [stderr] | ^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(deprecated)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `from` [INFO] [stderr] --> src/main.rs:42:20 [INFO] [stderr] | [INFO] [stderr] 42 | let (read, from) = socket.recv_from(&mut buf).unwrap(); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_from` [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/main.rs:21:9 [INFO] [stderr] | [INFO] [stderr] 21 | let mut connections: Arc>> = Arc::new(Mutex::new(HashMap::new())); [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/main.rs:22:9 [INFO] [stderr] | [INFO] [stderr] 22 | let mut connections2 = connections.clone(); [INFO] [stderr] | ----^^^^^^^^^^^^ [INFO] [stderr] | | [INFO] [stderr] | help: remove this `mut` [INFO] [stderr] [INFO] [stderr] warning: field is never read: `connection_id` [INFO] [stderr] --> src/main.rs:14:5 [INFO] [stderr] | [INFO] [stderr] 14 | connection_id: String, [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(dead_code)]` on by default [INFO] [stderr] [INFO] [stderr] warning: function `handleConnect` should have a snake case name [INFO] [stderr] --> src/main.rs:60:4 [INFO] [stderr] | [INFO] [stderr] 60 | fn handleConnect(msg: &Message, socket: &UdpSocket, connections: &Mutex>) { [INFO] [stderr] | ^^^^^^^^^^^^^ help: convert the identifier to snake case: `handle_connect` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(non_snake_case)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 8 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: unused imports: `Arc`, `Mutex` [INFO] [stderr] --> src/bin/client.rs:2:17 [INFO] [stderr] | [INFO] [stderr] 2 | use std::sync::{Arc, Mutex}; [INFO] [stderr] | ^^^ ^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::thread` [INFO] [stderr] --> src/bin/client.rs:3:5 [INFO] [stderr] | [INFO] [stderr] 3 | use std::thread; [INFO] [stderr] | ^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::str` [INFO] [stderr] --> src/bin/client.rs:4:5 [INFO] [stderr] | [INFO] [stderr] 4 | use std::str; [INFO] [stderr] | ^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `rustc_serialize::json` [INFO] [stderr] --> src/bin/client.rs:5:5 [INFO] [stderr] | [INFO] [stderr] 5 | use rustc_serialize::json; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `std::collections::HashMap` [INFO] [stderr] --> src/bin/client.rs:6:5 [INFO] [stderr] | [INFO] [stderr] 6 | use std::collections::HashMap; [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `ping` [INFO] [stderr] --> src/bin/client.rs:33:13 [INFO] [stderr] | [INFO] [stderr] 33 | let ping = read_message(&socket); [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_ping` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: 6 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.09s [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/codecamp_dummy_rust-11749f6237567538 [INFO] [stdout] running 0 tests [INFO] [stderr] Running /opt/rustwide/target/debug/deps/client-089a17d513963402 [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stdout] [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] [stderr] Running /opt/rustwide/target/debug/deps/codecamp_dummy_rust-1a353896a354706e [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] [stderr] Doc-tests codecamp_dummy_rust [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 `Command { std: "docker" "inspect" "71eb9e5f0db6b3f142fe88f97d96c32331c9edb8ac46bfde6075db821ef557d1", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "71eb9e5f0db6b3f142fe88f97d96c32331c9edb8ac46bfde6075db821ef557d1", kill_on_drop: false }` [INFO] [stdout] 71eb9e5f0db6b3f142fe88f97d96c32331c9edb8ac46bfde6075db821ef557d1