[INFO] cloning repository https://github.com/fre-ben/rustlings [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fre-ben/rustlings" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffre-ben%2Frustlings", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffre-ben%2Frustlings'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 22d1e65ca647af662704b29823870f1857baa3c0 [INFO] testing fre-ben/rustlings against master#b03b3a7ec92682be2917540b679478d41c95a30c for pr-137122-1 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffre-ben%2Frustlings" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'... [INFO] [stderr] done. [INFO] started tweaking git repo https://github.com/fre-ben/rustlings [INFO] finished tweaking git repo https://github.com/fre-ben/rustlings [INFO] tweaked toml for git repo https://github.com/fre-ben/rustlings written to /workspace/builds/worker-3-tc1/source/Cargo.toml [INFO] validating manifest of git repo https://github.com/fre-ben/rustlings on toolchain b03b3a7ec92682be2917540b679478d41c95a30c [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 27e1a65a93bcfd03f9628e935f8444d4b04c0981d09091b3f81c5040ce3d8df6 [INFO] running `Command { std: "docker" "start" "-a" "27e1a65a93bcfd03f9628e935f8444d4b04c0981d09091b3f81c5040ce3d8df6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "27e1a65a93bcfd03f9628e935f8444d4b04c0981d09091b3f81c5040ce3d8df6", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "27e1a65a93bcfd03f9628e935f8444d4b04c0981d09091b3f81c5040ce3d8df6", kill_on_drop: false }` [INFO] [stdout] 27e1a65a93bcfd03f9628e935f8444d4b04c0981d09091b3f81c5040ce3d8df6 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+b03b3a7ec92682be2917540b679478d41c95a30c" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3bfa527776cff3c7495229bae7933f77ca83a44c6f45a7e5a804d999312e9602 [INFO] running `Command { std: "docker" "start" "-a" "3bfa527776cff3c7495229bae7933f77ca83a44c6f45a7e5a804d999312e9602", kill_on_drop: false }` [INFO] [stderr] Compiling exercises v0.0.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0072]: recursive type `List` has infinite size [INFO] [stdout] --> exercises/19_smart_pointers/box1.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | enum List { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] 15 | Cons(i32, List), [INFO] [stdout] | ---- recursive without indirection [INFO] [stdout] | [INFO] [stdout] help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to break the cycle [INFO] [stdout] | [INFO] [stdout] 15 | Cons(i32, Box), [INFO] [stdout] | ++++ + [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0391]: cycle detected when computing drop-check constraints for `List` [INFO] [stdout] --> exercises/19_smart_pointers/box1.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | enum List { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: ...which immediately requires computing drop-check constraints for `List` again [INFO] [stdout] = note: cycle used when computing dropck types for `List` [INFO] [stdout] = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0391]: cycle detected when computing when `List` needs drop [INFO] [stdout] --> exercises/19_smart_pointers/box1.rs:14:1 [INFO] [stdout] | [INFO] [stdout] 14 | enum List { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: ...which immediately requires computing when `List` needs drop again [INFO] [stdout] = note: cycle used when computing whether `List` needs drop [INFO] [stdout] = note: see https://rustc-dev-guide.rust-lang.org/overview.html#queries and https://rustc-dev-guide.rust-lang.org/query.html for more information [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0382]: use of moved value: `tx` [INFO] [stdout] --> exercises/20_threads/threads3.rs:28:19 [INFO] [stdout] | [INFO] [stdout] 17 | fn send_tx(q: Queue, tx: mpsc::Sender) { [INFO] [stdout] | -- move occurs because `tx` has type `std::sync::mpsc::Sender`, which does not implement the `Copy` trait [INFO] [stdout] ... [INFO] [stdout] 20 | thread::spawn(move || { [INFO] [stdout] | ------- value moved into closure here [INFO] [stdout] 21 | for val in q.first_half { [INFO] [stdout] | ----------------------- inside of this loop [INFO] [stdout] 22 | println!("Sending {val:?}"); [INFO] [stdout] 23 | tx.send(val).unwrap(); [INFO] [stdout] | -- variable moved due to use in closure [INFO] [stdout] ... [INFO] [stdout] 28 | thread::spawn(move || { [INFO] [stdout] | ^^^^^^^ value used here after move [INFO] [stdout] ... [INFO] [stdout] 31 | tx.send(val).unwrap(); [INFO] [stdout] | -- use occurs due to use in closure [INFO] [stdout] | [INFO] [stdout] help: consider moving the expression out of the loop so it is only moved once [INFO] [stdout] | [INFO] [stdout] 21 ~ let mut value = tx.send(val); [INFO] [stdout] 22 ~ for val in q.first_half { [INFO] [stdout] 23 | println!("Sending {val:?}"); [INFO] [stdout] 24 ~ value.unwrap(); [INFO] [stdout] | [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0382`. [INFO] [stdout] [INFO] [stdout] Some errors have detailed explanations: E0072, E0391. [INFO] [stdout] [INFO] [stdout] For more information about an error, try `rustc --explain E0072`. [INFO] [stdout] [INFO] [stderr] error: could not compile `exercises` (bin "threads3") due to 1 previous error [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `exercises` (bin "box1") due to 3 previous errors [INFO] running `Command { std: "docker" "inspect" "3bfa527776cff3c7495229bae7933f77ca83a44c6f45a7e5a804d999312e9602", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3bfa527776cff3c7495229bae7933f77ca83a44c6f45a7e5a804d999312e9602", kill_on_drop: false }` [INFO] [stdout] 3bfa527776cff3c7495229bae7933f77ca83a44c6f45a7e5a804d999312e9602