[INFO] cloning repository https://github.com/rkanati/union-find [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rkanati/union-find" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkanati%2Funion-find", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkanati%2Funion-find'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] f2f6002ae785ab28766995c06e684b4a9f7dbf28 [INFO] checking rkanati/union-find against master#5431404b87967c69438ea1e698edbe96505f0798 for pr-119849 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkanati%2Funion-find" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rkanati/union-find on toolchain 5431404b87967c69438ea1e698edbe96505f0798 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5431404b87967c69438ea1e698edbe96505f0798" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rkanati/union-find [INFO] finished tweaking git repo https://github.com/rkanati/union-find [INFO] tweaked toml for git repo https://github.com/rkanati/union-find written to /workspace/builds/worker-6-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/rkanati/union-find 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" "+5431404b87967c69438ea1e698edbe96505f0798" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [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 rkanati/union-find against try#21bc403d557a2516df70ea80fb19b94177beede5 for pr-119849 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkanati%2Funion-find" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rkanati/union-find on toolchain 21bc403d557a2516df70ea80fb19b94177beede5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rkanati/union-find [INFO] finished tweaking git repo https://github.com/rkanati/union-find [INFO] tweaked toml for git repo https://github.com/rkanati/union-find written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/rkanati/union-find 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" "+21bc403d557a2516df70ea80fb19b94177beede5" "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 [INFO] checking rkanati/union-find against try#21bc403d557a2516df70ea80fb19b94177beede5 for pr-119849 [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frkanati%2Funion-find" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/rkanati/union-find on toolchain 21bc403d557a2516df70ea80fb19b94177beede5 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/rkanati/union-find [INFO] finished tweaking git repo https://github.com/rkanati/union-find [INFO] tweaked toml for git repo https://github.com/rkanati/union-find written to /workspace/builds/worker-6-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/rkanati/union-find 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" "+21bc403d557a2516df70ea80fb19b94177beede5" "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 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+21bc403d557a2516df70ea80fb19b94177beede5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 8aa7cfbe2ebaa3c8bb6d12e93f0f61308eee34aac815ee07d5b685ac4652cfe4 [INFO] running `Command { std: "docker" "start" "-a" "8aa7cfbe2ebaa3c8bb6d12e93f0f61308eee34aac815ee07d5b685ac4652cfe4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "8aa7cfbe2ebaa3c8bb6d12e93f0f61308eee34aac815ee07d5b685ac4652cfe4", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "8aa7cfbe2ebaa3c8bb6d12e93f0f61308eee34aac815ee07d5b685ac4652cfe4", kill_on_drop: false }` [INFO] [stdout] 8aa7cfbe2ebaa3c8bb6d12e93f0f61308eee34aac815ee07d5b685ac4652cfe4 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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" "+21bc403d557a2516df70ea80fb19b94177beede5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 743f0261be887704e284ac2ef1a4dc925946baeab222c9db48561a3e89089334 [INFO] running `Command { std: "docker" "start" "-a" "743f0261be887704e284ac2ef1a4dc925946baeab222c9db48561a3e89089334", kill_on_drop: false }` [INFO] [stderr] Checking union-find v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: struct `Repr` is never constructed [INFO] [stdout] --> src/main.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | struct Repr { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `update` is never used [INFO] [stdout] --> src/main.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Repr { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 9 | fn update(&mut self, mut other: Repr, merge: impl FnOnce(T, T) -> T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Node` is never used [INFO] [stdout] --> src/main.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | enum Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `to_repr`, `repr`, `rank`, `update`, and `new_repr` are never used [INFO] [stdout] --> src/main.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl Node { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 27 | fn to_repr(self) -> Repr { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | fn repr(&mut self) -> &mut Repr { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | fn rank(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | fn update(&mut self, absorb: Node, merge: impl FnOnce(T, T) -> T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn new_repr(data: T) -> Node { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UF` is never constructed [INFO] [stdout] --> src/main.rs:62:16 [INFO] [stdout] | [INFO] [stdout] 62 | pub struct UF { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/main.rs:70:16 [INFO] [stdout] | [INFO] [stdout] 69 | impl UF { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 70 | pub fn new() -> UF { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 74 | pub fn make_point(&mut self, data: T) -> Point { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn node(&self, index: usize) -> &Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | fn node_mut(&mut self, index: usize) -> &mut Node { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | fn parent(&self, index: usize) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn find(&mut self, mut point: Point) -> Point { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn get(&mut self, point: Point) -> &T { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 107 | pub fn find_and_get(&mut self, point: Point) -> (Point, &T) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 117 | pub fn union(&mut self, a: Point, b: Point, merge: impl FnOnce(T, T) -> T) -> Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `Repr` is never constructed [INFO] [stdout] --> src/main.rs:3:12 [INFO] [stdout] | [INFO] [stdout] 3 | struct Repr { [INFO] [stdout] | ^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: method `update` is never used [INFO] [stdout] --> src/main.rs:9:12 [INFO] [stdout] | [INFO] [stdout] 8 | impl Repr { [INFO] [stdout] | --------------- method in this implementation [INFO] [stdout] 9 | fn update(&mut self, mut other: Repr, merge: impl FnOnce(T, T) -> T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: enum `Node` is never used [INFO] [stdout] --> src/main.rs:21:10 [INFO] [stdout] | [INFO] [stdout] 21 | enum Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: associated items `to_repr`, `repr`, `rank`, `update`, and `new_repr` are never used [INFO] [stdout] --> src/main.rs:27:12 [INFO] [stdout] | [INFO] [stdout] 26 | impl Node { [INFO] [stdout] | --------------- associated items in this implementation [INFO] [stdout] 27 | fn to_repr(self) -> Repr { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 34 | fn repr(&mut self) -> &mut Repr { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 41 | fn rank(&self) -> usize { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 48 | fn update(&mut self, absorb: Node, merge: impl FnOnce(T, T) -> T) { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 54 | fn new_repr(data: T) -> Node { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `UF` is never constructed [INFO] [stdout] --> src/main.rs:62:16 [INFO] [stdout] | [INFO] [stdout] 62 | pub struct UF { [INFO] [stdout] | ^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: multiple associated items are never used [INFO] [stdout] --> src/main.rs:70:16 [INFO] [stdout] | [INFO] [stdout] 69 | impl UF { [INFO] [stdout] | ------------- associated items in this implementation [INFO] [stdout] 70 | pub fn new() -> UF { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 74 | pub fn make_point(&mut self, data: T) -> Point { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 80 | fn node(&self, index: usize) -> &Node { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 84 | fn node_mut(&mut self, index: usize) -> &mut Node { [INFO] [stdout] | ^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 88 | fn parent(&self, index: usize) -> usize { [INFO] [stdout] | ^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 95 | pub fn find(&mut self, mut point: Point) -> Point { [INFO] [stdout] | ^^^^ [INFO] [stdout] ... [INFO] [stdout] 103 | pub fn get(&mut self, point: Point) -> &T { [INFO] [stdout] | ^^^ [INFO] [stdout] ... [INFO] [stdout] 107 | pub fn find_and_get(&mut self, point: Point) -> (Point, &T) { [INFO] [stdout] | ^^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 117 | pub fn union(&mut self, a: Point, b: Point, merge: impl FnOnce(T, T) -> T) -> Point { [INFO] [stdout] | ^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 6 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished dev [unoptimized + debuginfo] target(s) in 0.09s [INFO] running `Command { std: "docker" "inspect" "743f0261be887704e284ac2ef1a4dc925946baeab222c9db48561a3e89089334", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "743f0261be887704e284ac2ef1a4dc925946baeab222c9db48561a3e89089334", kill_on_drop: false }` [INFO] [stdout] 743f0261be887704e284ac2ef1a4dc925946baeab222c9db48561a3e89089334