[INFO] cloning repository https://github.com/jawline/mdp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jawline/mdp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] cf4618d31e21c93e57bfc8082970147d3ef1f769
[INFO] checking jawline/mdp against master#91c0823ee63e793d990bb9fed898dc95b5d6db51 for pr-125741
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jawline/mdp on toolchain 91c0823ee63e793d990bb9fed898dc95b5d6db51
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+91c0823ee63e793d990bb9fed898dc95b5d6db51" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jawline/mdp
[INFO] finished tweaking git repo https://github.com/jawline/mdp
[INFO] tweaked toml for git repo https://github.com/jawline/mdp written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/jawline/mdp 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" "+91c0823ee63e793d990bb9fed898dc95b5d6db51" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+91c0823ee63e793d990bb9fed898dc95b5d6db51" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 76e2707ec0de12beb32f06fcbe69d6603d041be61c6df7666cbcaf70c7df5079
[INFO] running `Command { std: "docker" "start" "-a" "76e2707ec0de12beb32f06fcbe69d6603d041be61c6df7666cbcaf70c7df5079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "76e2707ec0de12beb32f06fcbe69d6603d041be61c6df7666cbcaf70c7df5079", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76e2707ec0de12beb32f06fcbe69d6603d041be61c6df7666cbcaf70c7df5079", kill_on_drop: false }`
[INFO] [stdout] 76e2707ec0de12beb32f06fcbe69d6603d041be61c6df7666cbcaf70c7df5079
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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:dff56e7819e73ed36160586b3445e93eb0be776c16704aeeded9c3fb668b2384" "/opt/rustwide/cargo-home/bin/cargo" "+91c0823ee63e793d990bb9fed898dc95b5d6db51" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6c48f27e5529ff3533cd99957494dad4bc8cb8bd72a063ea6f97d5172f9cc5cd
[INFO] running `Command { std: "docker" "start" "-a" "6c48f27e5529ff3533cd99957494dad4bc8cb8bd72a063ea6f97d5172f9cc5cd", kill_on_drop: false }`
[INFO] [stderr]     Checking libc v0.2.42
[INFO] [stderr]     Checking rand_core v0.2.1
[INFO] [stderr]     Checking rand v0.5.4
[INFO] [stderr]     Checking markov v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `self::dense::DenseMatrix`
[INFO] [stdout]   --> src/matrix/mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use self::dense::DenseMatrix;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GreedyAgent`
[INFO] [stdout]   --> src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use strategies::greedy::{ GreedyAgent };
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MarkovChainAgent`
[INFO] [stdout]   --> src/main.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 | use strategies::markov::{ MarkovChainAgent };
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `self::dense::DenseMatrix`
[INFO] [stdout]   --> src/matrix/mod.rs:23:9
[INFO] [stdout]    |
[INFO] [stdout] 23 | pub use self::dense::DenseMatrix;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `GreedyAgent`
[INFO] [stdout]   --> src/main.rs:11:27
[INFO] [stdout]    |
[INFO] [stdout] 11 | use strategies::greedy::{ GreedyAgent };
[INFO] [stdout]    |                           ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `MarkovChainAgent`
[INFO] [stdout]   --> src/main.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 | use strategies::markov::{ MarkovChainAgent };
[INFO] [stdout]    |                           ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matrix/mod.rs:13:46
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn print_matrix<T: Copy + Display>(mat: &Matrix<T>) {
[INFO] [stdout]    |                                              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn print_matrix<T: Copy + Display>(mat: &dyn Matrix<T>) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/matrix/mod.rs:13:46
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn print_matrix<T: Copy + Display>(mat: &Matrix<T>) {
[INFO] [stdout]    |                                              ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: if this is an object-safe trait, use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub fn print_matrix<T: Copy + Display>(mat: &dyn Matrix<T>) {
[INFO] [stdout]    |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/greedy.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn select_transfer(&self, from: usize, possible: &Vec<(usize, f32, f32)>) -> Option<usize> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/greedy.rs:15:28
[INFO] [stdout]    |
[INFO] [stdout] 15 |     fn select_transfer(&self, from: usize, possible: &Vec<(usize, f32, f32)>) -> Option<usize> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/greedy.rs:26:72
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn select_reward(&self, process: &Process<T>, from: usize, to: usize, success: bool) -> f32 {
[INFO] [stdout]    |                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:52
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:67
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:80
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                   ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/greedy.rs:26:72
[INFO] [stdout]    |
[INFO] [stdout] 26 |     fn select_reward(&self, process: &Process<T>, from: usize, to: usize, success: bool) -> f32 {
[INFO] [stdout]    |                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reward`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:91
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:104
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/markov.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn select_transfer(&self, from: usize, possible: &Vec<(usize, f32, f32)>) -> Option<usize> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:30
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:52
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/markov.rs:36:72
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn select_reward(&self, process: &Process<T>, from: usize, to: usize, success: bool) -> f32 {
[INFO] [stdout]    |                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:67
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:80
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                   ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reward`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:91
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/markov.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/greedy.rs:32:104
[INFO] [stdout]    |
[INFO] [stdout] 32 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/strategies/markov.rs:42:52
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/markov.rs:16:28
[INFO] [stdout]    |
[INFO] [stdout] 16 |     fn select_transfer(&self, from: usize, possible: &Vec<(usize, f32, f32)>) -> Option<usize> {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/markov.rs:42:67
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/strategies/markov.rs:42:80
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                   ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reward`
[INFO] [stdout]   --> src/strategies/markov.rs:42:91
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/markov.rs:42:104
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn try_transfer(&self, process: &Process<T>, from: usize, to: usize) -> bool {
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:11:47
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn try_transfer(&self, process: &Process<T>, from: usize, to: usize) -> bool {
[INFO] [stdout]    |                                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:11:60
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn try_transfer(&self, process: &Process<T>, from: usize, to: usize) -> bool {
[INFO] [stdout]    |                                                               ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/markov.rs:36:72
[INFO] [stdout]    |
[INFO] [stdout] 36 |     fn select_reward(&self, process: &Process<T>, from: usize, to: usize, success: bool) -> f32 {
[INFO] [stdout]    |                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/markov.rs:42:30
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `state`
[INFO] [stdout]   --> src/strategies/markov.rs:42:52
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_state`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/markov.rs:42:67
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                      ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/strategies/markov.rs:42:80
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                   ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `reward`
[INFO] [stdout]   --> src/strategies/markov.rs:42:91
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                              ^^^^^^ help: if this is intentional, prefix it with an underscore: `_reward`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/markov.rs:42:104
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {}
[INFO] [stdout]    |                                                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:11:25
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn try_transfer(&self, process: &Process<T>, from: usize, to: usize) -> bool {
[INFO] [stdout]    |                            ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `from`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:11:47
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn try_transfer(&self, process: &Process<T>, from: usize, to: usize) -> bool {
[INFO] [stdout]    |                                                  ^^^^ help: if this is intentional, prefix it with an underscore: `_from`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `to`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:11:60
[INFO] [stdout]    |
[INFO] [stdout] 11 |     fn try_transfer(&self, process: &Process<T>, from: usize, to: usize) -> bool {
[INFO] [stdout]    |                                                               ^^ help: if this is intentional, prefix it with an underscore: `_to`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:54:72
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn select_reward(&self, process: &Process<T>, from: usize, to: usize, success: bool) -> f32 {
[INFO] [stdout]    |                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:58:104
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {
[INFO] [stdout]    |                                                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:54:72
[INFO] [stdout]    |
[INFO] [stdout] 54 |     fn select_reward(&self, process: &Process<T>, from: usize, to: usize, success: bool) -> f32 {
[INFO] [stdout]    |                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `process`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:58:30
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {
[INFO] [stdout]    |                                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_process`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `success`
[INFO] [stdout]   --> src/strategies/reinforcement/naive.rs:58:104
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn punish_action(&mut self, process: &Process<T>, state: &State, from: usize, to: usize, reward: f32, success: bool) {
[INFO] [stdout]    |                                                                                                           ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_success`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/matrix/dense.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<T: Copy> DenseMatrix<T> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 10 |
[INFO] [stdout] 11 |     pub fn new(default: T, width: usize, height: usize) -> DenseMatrix<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/matrix/dense.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 9  | impl<T: Copy> DenseMatrix<T> {
[INFO] [stdout]    | ---------------------------- associated function in this implementation
[INFO] [stdout] 10 |
[INFO] [stdout] 11 |     pub fn new(default: T, width: usize, height: usize) -> DenseMatrix<T> {
[INFO] [stdout]    |            ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 27 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/markov-9f1fdd48f8eec88c.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/markov-9f1fdd48f8eec88c/dep-bin-markov`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not parse/generate dep info at: /opt/rustwide/target/debug/deps/markov-d7ad80c5fb06e781.d
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   failed to write `/opt/rustwide/target/debug/.fingerprint/markov-d7ad80c5fb06e781/dep-test-bin-markov`
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   No space left on device (os error 28)
[INFO] running `Command { std: "docker" "inspect" "6c48f27e5529ff3533cd99957494dad4bc8cb8bd72a063ea6f97d5172f9cc5cd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6c48f27e5529ff3533cd99957494dad4bc8cb8bd72a063ea6f97d5172f9cc5cd", kill_on_drop: false }`
[INFO] [stdout] 6c48f27e5529ff3533cd99957494dad4bc8cb8bd72a063ea6f97d5172f9cc5cd
[INFO] checking jawline/mdp against try#0525276e4a85ae0a91f6f7447e501e2981e77908 for pr-125741
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking jawline/mdp against try#0525276e4a85ae0a91f6f7447e501e2981e77908 for pr-125741
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking jawline/mdp against try#0525276e4a85ae0a91f6f7447e501e2981e77908 for pr-125741
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking jawline/mdp against try#0525276e4a85ae0a91f6f7447e501e2981e77908 for pr-125741
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[INFO] checking jawline/mdp against try#0525276e4a85ae0a91f6f7447e501e2981e77908 for pr-125741
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjawline%2Fmdp" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] fatal: could not create leading directories of '/workspace/builds/worker-4-tc2/source': No space left on device
[ERROR] this task or one of its parent failed!
[ERROR] failed to checkout https://github.com/jawline/mdp
[ERROR] caused by: command failed: exit status: 128
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.