[INFO] cloning repository https://github.com/sgasse/rust_graph [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/sgasse/rust_graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgasse%2Frust_graph", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgasse%2Frust_graph'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 91dd0da1fecdca638ceb9d00dc1459ad3de92ce9 [INFO] checking sgasse/rust_graph against master#bb89df6903539e7014b8db29bccd6a9ee9553122 for pr-121072 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgasse%2Frust_graph" "/workspace/builds/worker-7-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sgasse/rust_graph on toolchain bb89df6903539e7014b8db29bccd6a9ee9553122 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sgasse/rust_graph [INFO] finished tweaking git repo https://github.com/sgasse/rust_graph [INFO] tweaked toml for git repo https://github.com/sgasse/rust_graph written to /workspace/builds/worker-7-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/sgasse/rust_graph 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" "+bb89df6903539e7014b8db29bccd6a9ee9553122" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] Blocking waiting for file lock on package cache [INFO] [stderr] Blocking waiting for file lock on package cache [ERROR] error running command: no output for 300 seconds [ERROR] this task or one of its parent failed! [ERROR] no output for 300 seconds [ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace. [INFO] checking sgasse/rust_graph against try#e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 for pr-121072 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsgasse%2Frust_graph" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/sgasse/rust_graph on toolchain e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/sgasse/rust_graph [INFO] finished tweaking git repo https://github.com/sgasse/rust_graph [INFO] tweaked toml for git repo https://github.com/sgasse/rust_graph written to /workspace/builds/worker-7-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/sgasse/rust_graph 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" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "fetch" "--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-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 7936b06b25ba5d101b512c118ba685774eeb75c3f5e150f5d46dc57988d7b753 [INFO] running `Command { std: "docker" "start" "-a" "7936b06b25ba5d101b512c118ba685774eeb75c3f5e150f5d46dc57988d7b753", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "7936b06b25ba5d101b512c118ba685774eeb75c3f5e150f5d46dc57988d7b753", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "7936b06b25ba5d101b512c118ba685774eeb75c3f5e150f5d46dc57988d7b753", kill_on_drop: false }` [INFO] [stdout] 7936b06b25ba5d101b512c118ba685774eeb75c3f5e150f5d46dc57988d7b753 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+e2d5da3bc6e298ce5f33ab9bd4e47f6a307ec8d0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 3a3aa2e42a8a061c6ba5bd50c94ae516a3adf4e9f073346808817c313b2ad4ec [INFO] running `Command { std: "docker" "start" "-a" "3a3aa2e42a8a061c6ba5bd50c94ae516a3adf4e9f073346808817c313b2ad4ec", kill_on_drop: false }` [INFO] [stderr] Checking rgraphs v0.3.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/trees/lu_tree.rs:113:37 [INFO] [stdout] | [INFO] [stdout] 113 | let _ = tree.set(3, new_data.clone()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linked_tree::Node` [INFO] [stdout] --> src/trees.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub use linked_tree::Node; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linked_tree::add_child_to_parent` [INFO] [stdout] --> src/trees.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use linked_tree::add_child_to_parent; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `lu_tree::LuTree` [INFO] [stdout] --> src/trees.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub use lu_tree::LuTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linked_tree::Node` [INFO] [stdout] --> src/trees.rs:6:9 [INFO] [stdout] | [INFO] [stdout] 6 | pub use linked_tree::Node; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_imports)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `linked_tree::add_child_to_parent` [INFO] [stdout] --> src/trees.rs:7:9 [INFO] [stdout] | [INFO] [stdout] 7 | pub use linked_tree::add_child_to_parent; [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused import: `lu_tree::LuTree` [INFO] [stdout] --> src/trees.rs:8:9 [INFO] [stdout] | [INFO] [stdout] 8 | pub use lu_tree::LuTree; [INFO] [stdout] | ^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated function `new` is never used [INFO] [stdout] --> src/trees/linked_tree.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 10 | impl Node<'_, T> { [INFO] [stdout] | ------------------- associated function in this implementation [INFO] [stdout] 11 | pub fn new<'a>(data: T) -> Node<'a, T> { [INFO] [stdout] | ^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `add_child_to_parent` is never used [INFO] [stdout] --> src/trees/linked_tree.rs:21:8 [INFO] [stdout] | [INFO] [stdout] 21 | pub fn add_child_to_parent<'b, T>(parent: &'b Node<'b, T>, child: &'b Node<'b, T>) { [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `LuTree` is never constructed [INFO] [stdout] --> src/trees/lu_tree.rs:11:12 [INFO] [stdout] | [INFO] [stdout] 11 | pub struct LuTree { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `new`, `add_node`, `set`, `get`, `parent`, and `children` are never used [INFO] [stdout] --> src/trees/lu_tree.rs:19:12 [INFO] [stdout] | [INFO] [stdout] 17 | / impl LuTree where [INFO] [stdout] 18 | | T: Clone { [INFO] [stdout] | |____________- associated items in this implementation [INFO] [stdout] 19 | pub fn new() -> LuTree { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 28 | pub fn add_node(&mut self, parent: Option, data: T) -> Result { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 49 | pub fn set(&mut self, node: usize, data: T) -> Result<(), ()> { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 59 | pub fn get(&self, node: usize) -> Result { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 63 | pub fn parent(&self, node: usize) -> Result { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 74 | pub fn children(&self, node: usize) -> Result, ()> { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 7 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: call to `.clone()` on a reference in this situation does nothing [INFO] [stdout] --> src/trees/lu_tree.rs:113:37 [INFO] [stdout] | [INFO] [stdout] 113 | let _ = tree.set(3, new_data.clone()); [INFO] [stdout] | ^^^^^^^^ help: remove this redundant call [INFO] [stdout] | [INFO] [stdout] = note: the type `str` does not implement `Clone`, so calling `clone` on `&str` copies the reference, which does not do anything and can be removed [INFO] [stdout] = note: `#[warn(noop_method_call)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.19s [INFO] running `Command { std: "docker" "inspect" "3a3aa2e42a8a061c6ba5bd50c94ae516a3adf4e9f073346808817c313b2ad4ec", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "3a3aa2e42a8a061c6ba5bd50c94ae516a3adf4e9f073346808817c313b2ad4ec", kill_on_drop: false }` [INFO] [stdout] 3a3aa2e42a8a061c6ba5bd50c94ae516a3adf4e9f073346808817c313b2ad4ec