[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] testing jarry-xiao/rust-graph-algos against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjarry-xiao%2Frust-graph-algos" "/workspace/builds/worker-28/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-28/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jarry-xiao/rust-graph-algos on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-28/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: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5548936c56c866f3bc411c3f71b8ebf43ddda6df8275144996443dac7c428530
[INFO] running `Command { std: "docker" "start" "-a" "5548936c56c866f3bc411c3f71b8ebf43ddda6df8275144996443dac7c428530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5548936c56c866f3bc411c3f71b8ebf43ddda6df8275144996443dac7c428530", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5548936c56c866f3bc411c3f71b8ebf43ddda6df8275144996443dac7c428530", kill_on_drop: false }`
[INFO] [stdout] 5548936c56c866f3bc411c3f71b8ebf43ddda6df8275144996443dac7c428530
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 61e9c3b8055a391ea01bb1e9b9acd35863c8bd7ca0b9b922d5141a0cad35480f
[INFO] running `Command { std: "docker" "start" "-a" "61e9c3b8055a391ea01bb1e9b9acd35863c8bd7ca0b9b922d5141a0cad35480f", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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: struct is never constructed: `DenseGraph`
[INFO] [stdout]   --> src/graph.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct DenseGraph<T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_dense_graph`
[INFO] [stdout]   --> src/graph.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub fn build_dense_graph<T>(nodes: Vec<T>) -> DenseGraph<T> 
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect`
[INFO] [stdout]    --> src/graph.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn connect(&mut self, v1: T, v2: T, weight: f32) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect_all`
[INFO] [stdout]    --> src/graph.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn connect_all(&mut self, edges: Vec<Edge<T>>) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `neighbors`
[INFO] [stdout]    --> src/graph.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn neighbors(&self, node: usize) -> Vec<(usize, f32)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.41s
[INFO] running `Command { std: "docker" "inspect" "61e9c3b8055a391ea01bb1e9b9acd35863c8bd7ca0b9b922d5141a0cad35480f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "61e9c3b8055a391ea01bb1e9b9acd35863c8bd7ca0b9b922d5141a0cad35480f", kill_on_drop: false }`
[INFO] [stdout] 61e9c3b8055a391ea01bb1e9b9acd35863c8bd7ca0b9b922d5141a0cad35480f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e524254460538e062901fe182129dd95345f048d93a5fa35ac2847c2b1451193
[INFO] running `Command { std: "docker" "start" "-a" "e524254460538e062901fe182129dd95345f048d93a5fa35ac2847c2b1451193", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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: struct is never constructed: `DenseGraph`
[INFO] [stdout]   --> src/graph.rs:92:12
[INFO] [stdout]    |
[INFO] [stdout] 92 | pub struct DenseGraph<T> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `build_dense_graph`
[INFO] [stdout]   --> src/graph.rs:97:8
[INFO] [stdout]    |
[INFO] [stdout] 97 | pub fn build_dense_graph<T>(nodes: Vec<T>) -> DenseGraph<T> 
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect`
[INFO] [stdout]    --> src/graph.rs:116:12
[INFO] [stdout]     |
[INFO] [stdout] 116 |     pub fn connect(&mut self, v1: T, v2: T, weight: f32) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `connect_all`
[INFO] [stdout]    --> src/graph.rs:130:12
[INFO] [stdout]     |
[INFO] [stdout] 130 |     pub fn connect_all(&mut self, edges: Vec<Edge<T>>) {
[INFO] [stdout]     |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `neighbors`
[INFO] [stdout]    --> src/graph.rs:134:12
[INFO] [stdout]     |
[INFO] [stdout] 134 |     pub fn neighbors(&self, node: usize) -> Vec<(usize, f32)> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.60s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/dijkstra-ebae578e871ab622)
[INFO] running `Command { std: "docker" "inspect" "e524254460538e062901fe182129dd95345f048d93a5fa35ac2847c2b1451193", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e524254460538e062901fe182129dd95345f048d93a5fa35ac2847c2b1451193", kill_on_drop: false }`
[INFO] [stdout] e524254460538e062901fe182129dd95345f048d93a5fa35ac2847c2b1451193
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-28/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 9de8495172a2ff9263410e6520027393b9669bc521ca8017684d98d5f3c8bf0c
[INFO] running `Command { std: "docker" "start" "-a" "9de8495172a2ff9263410e6520027393b9669bc521ca8017684d98d5f3c8bf0c", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `v`
[INFO] [stderr]   --> src/graph.rs:82:43
[INFO] [stderr]    |
[INFO] [stderr] 82 |         return self.edges.iter().map(|(k, v)| *k).collect();
[INFO] [stderr]    |                                           ^ help: if this is intentional, prefix it with an underscore: `_v`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `DenseGraph`
[INFO] [stderr]   --> src/graph.rs:92:12
[INFO] [stderr]    |
[INFO] [stderr] 92 | pub struct DenseGraph<T> {
[INFO] [stderr]    |            ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `build_dense_graph`
[INFO] [stderr]   --> src/graph.rs:97:8
[INFO] [stderr]    |
[INFO] [stderr] 97 | pub fn build_dense_graph<T>(nodes: Vec<T>) -> DenseGraph<T> 
[INFO] [stderr]    |        ^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `connect`
[INFO] [stderr]    --> src/graph.rs:116:12
[INFO] [stderr]     |
[INFO] [stderr] 116 |     pub fn connect(&mut self, v1: T, v2: T, weight: f32) {
[INFO] [stderr]     |            ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `connect_all`
[INFO] [stderr]    --> src/graph.rs:130:12
[INFO] [stderr]     |
[INFO] [stderr] 130 |     pub fn connect_all(&mut self, edges: Vec<Edge<T>>) {
[INFO] [stderr]     |            ^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `neighbors`
[INFO] [stderr]    --> src/graph.rs:134:12
[INFO] [stderr]     |
[INFO] [stderr] 134 |     pub fn neighbors(&self, node: usize) -> Vec<(usize, f32)> {
[INFO] [stderr]     |            ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `dijkstra` (bin "dijkstra" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/dijkstra-ebae578e871ab622)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "9de8495172a2ff9263410e6520027393b9669bc521ca8017684d98d5f3c8bf0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9de8495172a2ff9263410e6520027393b9669bc521ca8017684d98d5f3c8bf0c", kill_on_drop: false }`
[INFO] [stdout] 9de8495172a2ff9263410e6520027393b9669bc521ca8017684d98d5f3c8bf0c