[INFO] cloning repository https://github.com/0xd34b33f/test_rayon [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/0xd34b33f/test_rayon" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xd34b33f%2Ftest_rayon", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xd34b33f%2Ftest_rayon'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 3a76e3718e97947c8d8b7437e0e91efd7b917479 [INFO] testing 0xd34b33f/test_rayon against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2F0xd34b33f%2Ftest_rayon" "/workspace/builds/worker-9/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-9/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/0xd34b33f/test_rayon on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/0xd34b33f/test_rayon [INFO] finished tweaking git repo https://github.com/0xd34b33f/test_rayon [INFO] tweaked toml for git repo https://github.com/0xd34b33f/test_rayon written to /workspace/builds/worker-9/source/Cargo.toml [INFO] crate git repo https://github.com/0xd34b33f/test_rayon already has a lockfile, it will not be regenerated [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Downloading crates ... [INFO] [stderr] Downloaded serde-humantime v0.1.1 [INFO] [stderr] Downloaded scroll_derive v0.10.1 [INFO] [stderr] Downloaded gimli v0.20.0 [INFO] [stderr] Downloaded color-backtrace v0.3.0 [INFO] [stderr] Downloaded clicolors-control v1.0.1 [INFO] [stderr] Downloaded findshlibs v0.5.0 [INFO] [stderr] Downloaded goblin v0.1.3 [INFO] [stderr] Downloaded addr2line v0.11.0 [INFO] [stderr] Downloaded console v0.9.1 [INFO] [stderr] Downloaded indicatif v0.13.0 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] aa36b1a37df093269784bf8c92bb8c98a3b37ca5ebc345c7486a537209568ff5 [INFO] running `Command { std: "docker" "start" "-a" "aa36b1a37df093269784bf8c92bb8c98a3b37ca5ebc345c7486a537209568ff5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "aa36b1a37df093269784bf8c92bb8c98a3b37ca5ebc345c7486a537209568ff5", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "aa36b1a37df093269784bf8c92bb8c98a3b37ca5ebc345c7486a537209568ff5", kill_on_drop: false }` [INFO] [stdout] aa36b1a37df093269784bf8c92bb8c98a3b37ca5ebc345c7486a537209568ff5 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] e4396dd6a142df86c06b2e0959cf1ccfefe78ae0b18c1eed34e1fa41b4708a1f [INFO] running `Command { std: "docker" "start" "-a" "e4396dd6a142df86c06b2e0959cf1ccfefe78ae0b18c1eed34e1fa41b4708a1f", kill_on_drop: false }` [INFO] [stderr] Compiling cfg-if v0.1.10 [INFO] [stderr] Compiling lazy_static v1.4.0 [INFO] [stderr] Compiling syn v1.0.13 [INFO] [stderr] Compiling byteorder v1.3.2 [INFO] [stderr] Compiling arrayvec v0.5.1 [INFO] [stderr] Compiling stable_deref_trait v1.1.1 [INFO] [stderr] Compiling regex-syntax v0.6.13 [INFO] [stderr] Compiling termcolor v1.1.0 [INFO] [stderr] Compiling number_prefix v0.3.0 [INFO] [stderr] Compiling proc-macro2 v1.0.8 [INFO] [stderr] Compiling backtrace-sys v0.1.32 [INFO] [stderr] Compiling num_cpus v1.12.0 [INFO] [stderr] Compiling termios v0.3.1 [INFO] [stderr] Compiling memmap v0.7.0 [INFO] [stderr] Compiling memoffset v0.5.3 [INFO] [stderr] Compiling getrandom v0.1.14 [INFO] [stderr] Compiling log v0.4.8 [INFO] [stderr] Compiling crossbeam-utils v0.7.0 [INFO] [stderr] Compiling clicolors-control v1.0.1 [INFO] [stderr] Compiling findshlibs v0.5.0 [INFO] [stderr] Compiling rand_core v0.5.1 [INFO] [stderr] Compiling crossbeam-queue v0.2.1 [INFO] [stderr] Compiling quote v1.0.2 [INFO] [stderr] Compiling rand_chacha v0.2.1 [INFO] [stderr] Compiling gimli v0.20.0 [INFO] [stderr] Compiling crossbeam-epoch v0.8.0 [INFO] [stderr] Compiling rand v0.7.3 [INFO] [stderr] Compiling crossbeam-deque v0.7.2 [INFO] [stderr] Compiling rayon-core v1.7.0 [INFO] [stderr] Compiling regex v1.3.3 [INFO] [stderr] Compiling rayon v1.3.0 [INFO] [stderr] Compiling console v0.9.1 [INFO] [stderr] Compiling addr2line v0.11.0 [INFO] [stderr] Compiling indicatif v0.13.0 [INFO] [stderr] Compiling scroll_derive v0.10.1 [INFO] [stderr] Compiling serde_derive v1.0.104 [INFO] [stderr] Compiling scroll v0.10.1 [INFO] [stderr] Compiling goblin v0.1.3 [INFO] [stderr] Compiling backtrace v0.3.42 [INFO] [stderr] Compiling color-backtrace v0.3.0 [INFO] [stderr] Compiling serde v1.0.104 [INFO] [stderr] Compiling serde-humantime v0.1.1 [INFO] [stderr] Compiling serde_json v1.0.44 [INFO] [stderr] Compiling test-rayon v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{BufReader, Read}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TcpStream` [INFO] [stdout] --> src/main.rs:12:16 [INFO] [stdout] | [INFO] [stdout] 12 | use std::net::{TcpStream, ToSocketAddrs}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/main.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 15 | use std::sync::mpsc::{Receiver, Sender, SyncSender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:11:26 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{BufReader, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | Err(e) => eprintln!("Error sending data via channel"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `command` [INFO] [stdout] --> src/main.rs:52:38 [INFO] [stdout] | [INFO] [stdout] 52 | fn process_host_test(hostname: A, command: &str, tx: SyncSender) -> Response [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let pool = ThreadPoolBuilder::new() [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inc_for_closure` [INFO] [stdout] --> src/main.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | let inc_for_closure = incremental_name.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_for_closure` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let result: Vec = [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 33.13s [INFO] running `Command { std: "docker" "inspect" "e4396dd6a142df86c06b2e0959cf1ccfefe78ae0b18c1eed34e1fa41b4708a1f", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "e4396dd6a142df86c06b2e0959cf1ccfefe78ae0b18c1eed34e1fa41b4708a1f", kill_on_drop: false }` [INFO] [stdout] e4396dd6a142df86c06b2e0959cf1ccfefe78ae0b18c1eed34e1fa41b4708a1f [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 937dc3fe49813adcdafe930e7b51dad65e3d53092477c526880df6f2c79cbe47 [INFO] running `Command { std: "docker" "start" "-a" "937dc3fe49813adcdafe930e7b51dad65e3d53092477c526880df6f2c79cbe47", kill_on_drop: false }` [INFO] [stderr] Compiling test-rayon v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::fs` [INFO] [stdout] --> src/main.rs:8:5 [INFO] [stdout] | [INFO] [stdout] 8 | use std::fs; [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `BufReader` [INFO] [stdout] --> src/main.rs:11:15 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{BufReader, Read}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `TcpStream` [INFO] [stdout] --> src/main.rs:12:16 [INFO] [stdout] | [INFO] [stdout] 12 | use std::net::{TcpStream, ToSocketAddrs}; [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Sender` [INFO] [stdout] --> src/main.rs:15:33 [INFO] [stdout] | [INFO] [stdout] 15 | use std::sync::mpsc::{Receiver, Sender, SyncSender}; [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Read` [INFO] [stdout] --> src/main.rs:11:26 [INFO] [stdout] | [INFO] [stdout] 11 | use std::io::{BufReader, Read}; [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `e` [INFO] [stdout] --> src/main.rs:78:13 [INFO] [stdout] | [INFO] [stdout] 78 | Err(e) => eprintln!("Error sending data via channel"), [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `command` [INFO] [stdout] --> src/main.rs:52:38 [INFO] [stdout] | [INFO] [stdout] 52 | fn process_host_test(hostname: A, command: &str, tx: SyncSender) -> Response [INFO] [stdout] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `pool` [INFO] [stdout] --> src/main.rs:105:9 [INFO] [stdout] | [INFO] [stdout] 105 | let pool = ThreadPoolBuilder::new() [INFO] [stdout] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `inc_for_closure` [INFO] [stdout] --> src/main.rs:116:9 [INFO] [stdout] | [INFO] [stdout] 116 | let inc_for_closure = incremental_name.clone(); [INFO] [stdout] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_for_closure` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `result` [INFO] [stdout] --> src/main.rs:118:9 [INFO] [stdout] | [INFO] [stdout] 118 | let result: Vec = [INFO] [stdout] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 10 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.89s [INFO] running `Command { std: "docker" "inspect" "937dc3fe49813adcdafe930e7b51dad65e3d53092477c526880df6f2c79cbe47", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "937dc3fe49813adcdafe930e7b51dad65e3d53092477c526880df6f2c79cbe47", kill_on_drop: false }` [INFO] [stdout] 937dc3fe49813adcdafe930e7b51dad65e3d53092477c526880df6f2c79cbe47 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 9be5bb961270c8f221c07e952cfcf4da68a64be5878be58da3ab13fe8b677ed8 [INFO] running `Command { std: "docker" "start" "-a" "9be5bb961270c8f221c07e952cfcf4da68a64be5878be58da3ab13fe8b677ed8", kill_on_drop: false }` [INFO] [stderr] warning: unused import: `std::fs` [INFO] [stderr] --> src/main.rs:8:5 [INFO] [stderr] | [INFO] [stderr] 8 | use std::fs; [INFO] [stderr] | ^^^^^^^ [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_imports)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused import: `BufReader` [INFO] [stderr] --> src/main.rs:11:15 [INFO] [stderr] | [INFO] [stderr] 11 | use std::io::{BufReader, Read}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `TcpStream` [INFO] [stderr] --> src/main.rs:12:16 [INFO] [stderr] | [INFO] [stderr] 12 | use std::net::{TcpStream, ToSocketAddrs}; [INFO] [stderr] | ^^^^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Sender` [INFO] [stderr] --> src/main.rs:15:33 [INFO] [stderr] | [INFO] [stderr] 15 | use std::sync::mpsc::{Receiver, Sender, SyncSender}; [INFO] [stderr] | ^^^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused import: `Read` [INFO] [stderr] --> src/main.rs:11:26 [INFO] [stderr] | [INFO] [stderr] 11 | use std::io::{BufReader, Read}; [INFO] [stderr] | ^^^^ [INFO] [stderr] [INFO] [stderr] warning: unused variable: `e` [INFO] [stderr] --> src/main.rs:78:13 [INFO] [stderr] | [INFO] [stderr] 78 | Err(e) => eprintln!("Error sending data via channel"), [INFO] [stderr] | ^ help: if this is intentional, prefix it with an underscore: `_e` [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(unused_variables)]` on by default [INFO] [stderr] [INFO] [stderr] warning: unused variable: `command` [INFO] [stderr] --> src/main.rs:52:38 [INFO] [stderr] | [INFO] [stderr] 52 | fn process_host_test(hostname: A, command: &str, tx: SyncSender) -> Response [INFO] [stderr] | ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `pool` [INFO] [stderr] --> src/main.rs:105:9 [INFO] [stderr] | [INFO] [stderr] 105 | let pool = ThreadPoolBuilder::new() [INFO] [stderr] | ^^^^ help: if this is intentional, prefix it with an underscore: `_pool` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `inc_for_closure` [INFO] [stderr] --> src/main.rs:116:9 [INFO] [stderr] | [INFO] [stderr] 116 | let inc_for_closure = incremental_name.clone(); [INFO] [stderr] | ^^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_inc_for_closure` [INFO] [stderr] [INFO] [stderr] warning: unused variable: `result` [INFO] [stderr] --> src/main.rs:118:9 [INFO] [stderr] | [INFO] [stderr] 118 | let result: Vec = [INFO] [stderr] | ^^^^^^ help: if this is intentional, prefix it with an underscore: `_result` [INFO] [stderr] [INFO] [stderr] warning: 10 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.06s [INFO] [stdout] [INFO] [stderr] Running unittests (/opt/rustwide/target/debug/deps/test_rayon-3420820ad45c0f7b) [INFO] [stdout] running 0 tests [INFO] [stdout] [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "9be5bb961270c8f221c07e952cfcf4da68a64be5878be58da3ab13fe8b677ed8", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9be5bb961270c8f221c07e952cfcf4da68a64be5878be58da3ab13fe8b677ed8", kill_on_drop: false }` [INFO] [stdout] 9be5bb961270c8f221c07e952cfcf4da68a64be5878be58da3ab13fe8b677ed8