[INFO] cloning repository https://github.com/lucabrown/rusty_kernel
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucabrown/rusty_kernel" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucabrown%2Frusty_kernel", kill_on_drop: false }`
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[INFO] testing lucabrown/rusty_kernel against master#d98a5da813da67eb189387b8ccfb73cf481275d8+rustflags=-Copt-level=3 for pr-138759-retry
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucabrown%2Frusty_kernel" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
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[INFO] finished tweaking git repo https://github.com/lucabrown/rusty_kernel
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[INFO] [stdout] warning: unused variable: `num_train`
[INFO] [stdout]    --> src/main.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let num_train: usize = num_samples - num_test;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_train`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_labels`
[INFO] [stdout]    --> src/main.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (graphs, target_labels) = read_data(&folder_path).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_matrix`
[INFO] [stdout]    --> src/main.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let kernel_matrix = kernel.fit_transform(graphs.clone());
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_test_split` is never used
[INFO] [stdout]    --> src/main.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn train_test_split(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_neighbours` is never used
[INFO] [stdout]   --> src/graph_kernel.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub(crate) trait GraphKernel {
[INFO] [stdout]    |                  ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn get_neighbours(&self, graph: &Graph, vertex: usize) -> Vec<usize>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeighbourhoodHashKernel` is never constructed
[INFO] [stdout]  --> src/neighbourhood_hash_kernel.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct NeighbourhoodHashKernel {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4m 21s
[INFO] running `Command { std: "docker" "inspect" "518e2ae6e7b856919e0c74bb1c0a6e57c2f81602dcc296c6334165aa2e2bb180", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "518e2ae6e7b856919e0c74bb1c0a6e57c2f81602dcc296c6334165aa2e2bb180", kill_on_drop: false }`
[INFO] [stdout] 518e2ae6e7b856919e0c74bb1c0a6e57c2f81602dcc296c6334165aa2e2bb180
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f8f4867d3400673c7d1c88192191dd56d476e0170384e3c0e7dae6912206dd5e
[INFO] running `Command { std: "docker" "start" "-a" "f8f4867d3400673c7d1c88192191dd56d476e0170384e3c0e7dae6912206dd5e", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty_kernel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `num_train`
[INFO] [stdout]    --> src/main.rs:131:9
[INFO] [stdout]     |
[INFO] [stdout] 131 |     let num_train: usize = num_samples - num_test;
[INFO] [stdout]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_train`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `target_labels`
[INFO] [stdout]    --> src/main.rs:166:22
[INFO] [stdout]     |
[INFO] [stdout] 166 |         let (graphs, target_labels) = read_data(&folder_path).unwrap();
[INFO] [stdout]     |                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_labels`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `kernel_matrix`
[INFO] [stdout]    --> src/main.rs:172:13
[INFO] [stdout]     |
[INFO] [stdout] 172 |         let kernel_matrix = kernel.fit_transform(graphs.clone());
[INFO] [stdout]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_matrix`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `train_test_split` is never used
[INFO] [stdout]    --> src/main.rs:124:4
[INFO] [stdout]     |
[INFO] [stdout] 124 | fn train_test_split(
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_neighbours` is never used
[INFO] [stdout]   --> src/graph_kernel.rs:49:8
[INFO] [stdout]    |
[INFO] [stdout] 7  | pub(crate) trait GraphKernel {
[INFO] [stdout]    |                  ----------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 49 |     fn get_neighbours(&self, graph: &Graph, vertex: usize) -> Vec<usize>;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NeighbourhoodHashKernel` is never constructed
[INFO] [stdout]  --> src/neighbourhood_hash_kernel.rs:9:12
[INFO] [stdout]   |
[INFO] [stdout] 9 | pub struct NeighbourhoodHashKernel {
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 3.45s
[INFO] running `Command { std: "docker" "inspect" "f8f4867d3400673c7d1c88192191dd56d476e0170384e3c0e7dae6912206dd5e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f8f4867d3400673c7d1c88192191dd56d476e0170384e3c0e7dae6912206dd5e", kill_on_drop: false }`
[INFO] [stdout] f8f4867d3400673c7d1c88192191dd56d476e0170384e3c0e7dae6912206dd5e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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 -Copt-level=3" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+d98a5da813da67eb189387b8ccfb73cf481275d8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 2ef6927c7b3e42336562e3948ed43a9fece4eda4f68db9157efabb4f4f0c8a58
[INFO] running `Command { std: "docker" "start" "-a" "2ef6927c7b3e42336562e3948ed43a9fece4eda4f68db9157efabb4f4f0c8a58", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `num_train`
[INFO] [stderr]    --> src/main.rs:131:9
[INFO] [stderr]     |
[INFO] [stderr] 131 |     let num_train: usize = num_samples - num_test;
[INFO] [stderr]     |         ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_num_train`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `target_labels`
[INFO] [stderr]    --> src/main.rs:166:22
[INFO] [stderr]     |
[INFO] [stderr] 166 |         let (graphs, target_labels) = read_data(&folder_path).unwrap();
[INFO] [stderr]     |                      ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_target_labels`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kernel_matrix`
[INFO] [stderr]    --> src/main.rs:172:13
[INFO] [stderr]     |
[INFO] [stderr] 172 |         let kernel_matrix = kernel.fit_transform(graphs.clone());
[INFO] [stderr]     |             ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_kernel_matrix`
[INFO] [stderr] 
[INFO] [stderr] warning: function `train_test_split` is never used
[INFO] [stderr]    --> src/main.rs:124:4
[INFO] [stderr]     |
[INFO] [stderr] 124 | fn train_test_split(
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method `get_neighbours` is never used
[INFO] [stderr]   --> src/graph_kernel.rs:49:8
[INFO] [stderr]    |
[INFO] [stderr] 7  | pub(crate) trait GraphKernel {
[INFO] [stderr]    |                  ----------- method in this trait
[INFO] [stderr] ...
[INFO] [stderr] 49 |     fn get_neighbours(&self, graph: &Graph, vertex: usize) -> Vec<usize>;
[INFO] [stderr]    |        ^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct `NeighbourhoodHashKernel` is never constructed
[INFO] [stderr]  --> src/neighbourhood_hash_kernel.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 | pub struct NeighbourhoodHashKernel {
[INFO] [stderr]   |            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `rusty_kernel` (bin "rusty_kernel" test) generated 6 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.15s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/rusty_kernel-321e2363c372b98c)
[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] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/rusty_kernel-b6017e9052ae663d)
[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" "2ef6927c7b3e42336562e3948ed43a9fece4eda4f68db9157efabb4f4f0c8a58", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2ef6927c7b3e42336562e3948ed43a9fece4eda4f68db9157efabb4f4f0c8a58", kill_on_drop: false }`
[INFO] [stdout] 2ef6927c7b3e42336562e3948ed43a9fece4eda4f68db9157efabb4f4f0c8a58
