[INFO] cloning repository https://github.com/jarry-xiao/rust-graph-algos [INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jarry-xiao/rust-graph-algos" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarry-xiao%2Frust-graph-algos", kill_on_drop: false }` [INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarry-xiao%2Frust-graph-algos'... [INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }` [INFO] [stdout] 0c8d0f9963482cb6c14e32635e1dfcf932303241 [INFO] checking jarry-xiao/rust-graph-algos against master#ceab6128fa48a616bfd3e3adf4bc80133b8ee223 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarry-xiao%2Frust-graph-algos" "/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/jarry-xiao/rust-graph-algos on toolchain ceab6128fa48a616bfd3e3adf4bc80133b8ee223 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jarry-xiao/rust-graph-algos [INFO] finished tweaking git repo https://github.com/jarry-xiao/rust-graph-algos [INFO] tweaked toml for git repo https://github.com/jarry-xiao/rust-graph-algos written to /workspace/builds/worker-5-tc1/source/Cargo.toml [INFO] crate git repo https://github.com/jarry-xiao/rust-graph-algos 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" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 14fcc10a7e89ad52645f20e8dd620b95dea89d2b3de2517fddc9c1ae507b3c3d [INFO] running `Command { std: "docker" "start" "-a" "14fcc10a7e89ad52645f20e8dd620b95dea89d2b3de2517fddc9c1ae507b3c3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "14fcc10a7e89ad52645f20e8dd620b95dea89d2b3de2517fddc9c1ae507b3c3d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "14fcc10a7e89ad52645f20e8dd620b95dea89d2b3de2517fddc9c1ae507b3c3d", kill_on_drop: false }` [INFO] [stdout] 14fcc10a7e89ad52645f20e8dd620b95dea89d2b3de2517fddc9c1ae507b3c3d [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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+ceab6128fa48a616bfd3e3adf4bc80133b8ee223" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 87d189dbf7f3dc2b62ffc3e6d614adc44bc7005c74523920b3bcf7fa7c9e82b9 [INFO] running `Command { std: "docker" "start" "-a" "87d189dbf7f3dc2b62ffc3e6d614adc44bc7005c74523920b3bcf7fa7c9e82b9", kill_on_drop: false }` [INFO] [stderr] Checking dijkstra v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/graph.rs:82:43 [INFO] [stdout] | [INFO] [stdout] 82 | return self.edges.iter().map(|(k, v)| *k).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/graph.rs:82:43 [INFO] [stdout] | [INFO] [stdout] 82 | return self.edges.iter().map(|(k, v)| *k).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `DenseGraph` is never constructed [INFO] [stdout] --> src/graph.rs:92:12 [INFO] [stdout] | [INFO] [stdout] 92 | pub struct DenseGraph { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_dense_graph` is never used [INFO] [stdout] --> src/graph.rs:97:8 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn build_dense_graph(nodes: Vec) -> DenseGraph [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `connect`, `connect_all`, and `neighbors` are never used [INFO] [stdout] --> src/graph.rs:116:12 [INFO] [stdout] | [INFO] [stdout] 113 | / impl DenseGraph [INFO] [stdout] 114 | | where T: Hash + Copy + Eq + Debug { [INFO] [stdout] | |_____________________________________- methods in this implementation [INFO] [stdout] 115 | [INFO] [stdout] 116 | pub fn connect(&mut self, v1: T, v2: T, weight: f32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | pub fn connect_all(&mut self, edges: Vec>) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn neighbors(&self, node: usize) -> Vec<(usize, f32)> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: struct `DenseGraph` is never constructed [INFO] [stdout] --> src/graph.rs:92:12 [INFO] [stdout] | [INFO] [stdout] 92 | pub struct DenseGraph { [INFO] [stdout] | ^^^^^^^^^^ [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(dead_code)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: function `build_dense_graph` is never used [INFO] [stdout] --> src/graph.rs:97:8 [INFO] [stdout] | [INFO] [stdout] 97 | pub fn build_dense_graph(nodes: Vec) -> DenseGraph [INFO] [stdout] | ^^^^^^^^^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: methods `connect`, `connect_all`, and `neighbors` are never used [INFO] [stdout] --> src/graph.rs:116:12 [INFO] [stdout] | [INFO] [stdout] 113 | / impl DenseGraph [INFO] [stdout] 114 | | where T: Hash + Copy + Eq + Debug { [INFO] [stdout] | |_____________________________________- methods in this implementation [INFO] [stdout] 115 | [INFO] [stdout] 116 | pub fn connect(&mut self, v1: T, v2: T, weight: f32) { [INFO] [stdout] | ^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 130 | pub fn connect_all(&mut self, edges: Vec>) { [INFO] [stdout] | ^^^^^^^^^^^ [INFO] [stdout] ... [INFO] [stdout] 134 | pub fn neighbors(&self, node: usize) -> Vec<(usize, f32)> { [INFO] [stdout] | ^^^^^^^^^ [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: 4 warnings emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stderr] Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s [INFO] running `Command { std: "docker" "inspect" "87d189dbf7f3dc2b62ffc3e6d614adc44bc7005c74523920b3bcf7fa7c9e82b9", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "87d189dbf7f3dc2b62ffc3e6d614adc44bc7005c74523920b3bcf7fa7c9e82b9", kill_on_drop: false }` [INFO] [stdout] 87d189dbf7f3dc2b62ffc3e6d614adc44bc7005c74523920b3bcf7fa7c9e82b9 [INFO] checking jarry-xiao/rust-graph-algos against try#3a4bc97f6385a3aa300a4fd689b44350e54fd676 for no-never-type-fallback [INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarry-xiao%2Frust-graph-algos" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }` [INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'... [INFO] [stderr] done. [INFO] validating manifest of git repo https://github.com/jarry-xiao/rust-graph-algos on toolchain 3a4bc97f6385a3aa300a4fd689b44350e54fd676 [INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }` [INFO] started tweaking git repo https://github.com/jarry-xiao/rust-graph-algos [INFO] finished tweaking git repo https://github.com/jarry-xiao/rust-graph-algos [INFO] tweaked toml for git repo https://github.com/jarry-xiao/rust-graph-algos written to /workspace/builds/worker-5-tc2/source/Cargo.toml [INFO] crate git repo https://github.com/jarry-xiao/rust-graph-algos 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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 5b5a2fccea2490da735c03923ae3e087e7c247aa87168d4bfba5f7e4379e1e55 [INFO] running `Command { std: "docker" "start" "-a" "5b5a2fccea2490da735c03923ae3e087e7c247aa87168d4bfba5f7e4379e1e55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "5b5a2fccea2490da735c03923ae3e087e7c247aa87168d4bfba5f7e4379e1e55", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "5b5a2fccea2490da735c03923ae3e087e7c247aa87168d4bfba5f7e4379e1e55", kill_on_drop: false }` [INFO] [stdout] 5b5a2fccea2490da735c03923ae3e087e7c247aa87168d4bfba5f7e4379e1e55 [INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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" "+3a4bc97f6385a3aa300a4fd689b44350e54fd676" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 4f572fe848905cd8715d347b356d70424f1d14aca4cd3ae0e2bd60e69dd9513d [INFO] running `Command { std: "docker" "start" "-a" "4f572fe848905cd8715d347b356d70424f1d14aca4cd3ae0e2bd60e69dd9513d", kill_on_drop: false }` [INFO] [stderr] Checking dijkstra v0.1.0 (/opt/rustwide/workdir) [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/priority_queue.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | / match data { [INFO] [stdout] 11 | | Some(x) => [INFO] [stdout] 12 | | return PriorityQueue{ [INFO] [stdout] 13 | | data: x, [INFO] [stdout] ... | [INFO] [stdout] 22 | | }, [INFO] [stdout] 23 | | }; [INFO] [stdout] | |_____^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error[E0282]: type annotations needed [INFO] [stdout] --> src/priority_queue.rs:10:5 [INFO] [stdout] | [INFO] [stdout] 10 | / match data { [INFO] [stdout] 11 | | Some(x) => [INFO] [stdout] 12 | | return PriorityQueue{ [INFO] [stdout] 13 | | data: x, [INFO] [stdout] ... | [INFO] [stdout] 22 | | }, [INFO] [stdout] 23 | | }; [INFO] [stdout] | |_____^ cannot infer type [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/graph.rs:82:43 [INFO] [stdout] | [INFO] [stdout] 82 | return self.edges.iter().map(|(k, v)| *k).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: unused variable: `v` [INFO] [stdout] --> src/graph.rs:82:43 [INFO] [stdout] | [INFO] [stdout] 82 | return self.edges.iter().map(|(k, v)| *k).collect(); [INFO] [stdout] | ^ help: if this is intentional, prefix it with an underscore: `_v` [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(unused_variables)]` on by default [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stdout] error: aborting due to 1 previous error; 1 warning emitted [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] For more information about this error, try `rustc --explain E0282`. [INFO] [stdout] [INFO] [stderr] error: could not compile `dijkstra` (bin "dijkstra") due to 2 previous errors; 1 warning emitted [INFO] [stderr] warning: build failed, waiting for other jobs to finish... [INFO] [stderr] error: could not compile `dijkstra` (bin "dijkstra" test) due to 2 previous errors; 1 warning emitted [INFO] running `Command { std: "docker" "inspect" "4f572fe848905cd8715d347b356d70424f1d14aca4cd3ae0e2bd60e69dd9513d", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "4f572fe848905cd8715d347b356d70424f1d14aca4cd3ae0e2bd60e69dd9513d", kill_on_drop: false }` [INFO] [stdout] 4f572fe848905cd8715d347b356d70424f1d14aca4cd3ae0e2bd60e69dd9513d