[INFO] cloning repository https://github.com/msyahmizul/un-LearnRust [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/msyahmizul/un-LearnRust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsyahmizul%2Fun-LearnRust", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsyahmizul%2Fun-LearnRust'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f79c6bda8fefc6a9434e19d68b7a5e3b5a2f363f [INFO] checking msyahmizul/un-LearnRust against master#52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6 for pr-127907 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmsyahmizul%2Fun-LearnRust" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/msyahmizul/un-LearnRust on toolchain 52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/msyahmizul/un-LearnRust [INFO] finished tweaking git repo https://github.com/msyahmizul/un-LearnRust [INFO] tweaked toml for git repo https://github.com/msyahmizul/un-LearnRust written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/msyahmizul/un-LearnRust already has a lockfile, it will not be regenerated [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] edfde3a372738e3500b8d945be7618e38c9fe6c70826554481a359c97b7706eb [INFO] running `Command { std: "docker" "start" "-a" "edfde3a372738e3500b8d945be7618e38c9fe6c70826554481a359c97b7706eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "edfde3a372738e3500b8d945be7618e38c9fe6c70826554481a359c97b7706eb", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "edfde3a372738e3500b8d945be7618e38c9fe6c70826554481a359c97b7706eb", kill_on_drop: false }` [INFO] [stdout] edfde3a372738e3500b8d945be7618e38c9fe6c70826554481a359c97b7706eb [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/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" "RUSTDOCFLAGS=--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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+52f3c71c8dc4aaed71e3035995fcbdd6d78c98c6" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3f4284fdd52fc78b3c73b4551faeeb1e891da8cf8acb07225634e180a6277711 [INFO] running `Command { std: "docker" "start" "-a" "3f4284fdd52fc78b3c73b4551faeeb1e891da8cf8acb07225634e180a6277711", kill_on_drop: false }` [INFO] [stderr] Checking learn v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/multi.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `std::time::Duration` [INFO] [stdout] --> src/multi.rs:2:5 [INFO] [stdout] | [INFO] [stdout] 2 | use std::time::Duration; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Arc` [INFO] [stdout] --> src/multi.rs:35:23 [INFO] [stdout] | [INFO] [stdout] 35 | use std::sync::{mpsc, Arc, Mutex}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `Arc` [INFO] [stdout] --> src/multi.rs:35:23 [INFO] [stdout] | [INFO] [stdout] 35 | use std::sync::{mpsc, Arc, Mutex}; [INFO] [stdout] | ^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rx` [INFO] [stdout] --> src/multi.rs:39:14 [INFO] [stdout] | [INFO] [stdout] 39 | let (tx, rx) = mpsc::channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `rx` [INFO] [stdout] --> src/multi.rs:39:14 [INFO] [stdout] | [INFO] [stdout] 39 | let (tx, rx) = mpsc::channel(); [INFO] [stdout] | ^^ help: if this is intentional, prefix it with an underscore: `_rx` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0382]: borrow of moved value: `counter` [INFO] [stdout] --> src/multi.rs:70:29 [INFO] [stdout] | [INFO] [stdout] 54 | let counter = Mutex::new(0); [INFO] [stdout] | ------- move occurs because `counter` has type `Mutex`, which does not implement the `Copy` trait [INFO] [stdout] ... [INFO] [stdout] 57 | for _ in 0..10 { [INFO] [stdout] | -------------- inside of this loop [INFO] [stdout] 58 | let handle = thread::spawn(move || { [INFO] [stdout] | ------- value moved into closure here, in previous iteration of loop [INFO] [stdout] ... [INFO] [stdout] 70 | println!("Result: {}", *counter.lock().unwrap()); [INFO] [stdout] | ^^^^^^^ value borrowed here after move [INFO] [stdout] | [INFO] [stdout] help: consider moving the expression out of the loop so it is only moved once [INFO] [stdout] | [INFO] [stdout] 57 ~ let mut value = counter.lock(); [INFO] [stdout] 58 ~ for _ in 0..10 { [INFO] [stdout] 59 | let handle = thread::spawn(move || { [INFO] [stdout] 60 ~ let mut num = value.unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0382]: borrow of moved value: `counter` [INFO] [stdout] --> src/multi.rs:70:29 [INFO] [stdout] | [INFO] [stdout] 54 | let counter = Mutex::new(0); [INFO] [stdout] | ------- move occurs because `counter` has type `Mutex`, which does not implement the `Copy` trait [INFO] [stdout] ... [INFO] [stdout] 57 | for _ in 0..10 { [INFO] [stdout] | -------------- inside of this loop [INFO] [stdout] 58 | let handle = thread::spawn(move || { [INFO] [stdout] | ------- value moved into closure here, in previous iteration of loop [INFO] [stdout] ... [INFO] [stdout] 70 | println!("Result: {}", *counter.lock().unwrap()); [INFO] [stdout] | ^^^^^^^ value borrowed here after move [INFO] [stdout] | [INFO] [stdout] help: consider moving the expression out of the loop so it is only moved once [INFO] [stdout] | [INFO] [stdout] 57 ~ let mut value = counter.lock(); [INFO] [stdout] 58 ~ for _ in 0..10 { [INFO] [stdout] 59 | let handle = thread::spawn(move || { [INFO] [stdout] 60 ~ let mut num = value.unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0382`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 3 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0382`. [INFO] [stdout] [INFO] [stderr] error: could not compile `learn` (bin "learn") due to 2 previous errors; 3 warnings emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `learn` (bin "learn" test) due to 2 previous errors; 3 warnings emitted [INFO] running `Command { std: "docker" "inspect" "3f4284fdd52fc78b3c73b4551faeeb1e891da8cf8acb07225634e180a6277711", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3f4284fdd52fc78b3c73b4551faeeb1e891da8cf8acb07225634e180a6277711", kill_on_drop: false }` [INFO] [stdout] 3f4284fdd52fc78b3c73b4551faeeb1e891da8cf8acb07225634e180a6277711