[INFO] fetching crate metaheuristics 1.0.15...
[INFO] testing metaheuristics-1.0.15 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296
[INFO] extracting crate metaheuristics 1.0.15 into /workspace/builds/worker-12/source
[INFO] validating manifest of crates.io crate metaheuristics 1.0.15 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking crates.io crate metaheuristics 1.0.15
[INFO] finished tweaking crates.io crate metaheuristics 1.0.15
[INFO] tweaked toml for crates.io crate metaheuristics 1.0.15 written to /workspace/builds/worker-12/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1c73fae6fa7ff6fbaccddc0ae2e3143888ae981a734493427b2ca9b14caef6fb
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1c73fae6fa7ff6fbaccddc0ae2e3143888ae981a734493427b2ca9b14caef6fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1c73fae6fa7ff6fbaccddc0ae2e3143888ae981a734493427b2ca9b14caef6fb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1c73fae6fa7ff6fbaccddc0ae2e3143888ae981a734493427b2ca9b14caef6fb", kill_on_drop: false }`
[INFO] [stdout] 1c73fae6fa7ff6fbaccddc0ae2e3143888ae981a734493427b2ca9b14caef6fb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c5fbebf2d17cf0a87e7916f646e2470d64176e246230bc94bcf0bed31923fc5c
[INFO] running `Command { std: "docker" "start" "-a" "c5fbebf2d17cf0a87e7916f646e2470d64176e246230bc94bcf0bed31923fc5c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling time v0.1.44
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling metaheuristics v1.0.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/random_search/mod.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.93s
[INFO] running `Command { std: "docker" "inspect" "c5fbebf2d17cf0a87e7916f646e2470d64176e246230bc94bcf0bed31923fc5c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c5fbebf2d17cf0a87e7916f646e2470d64176e246230bc94bcf0bed31923fc5c", kill_on_drop: false }`
[INFO] [stdout] c5fbebf2d17cf0a87e7916f646e2470d64176e246230bc94bcf0bed31923fc5c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4409f5490280e0604e3d3b1cca67dbcb76685d723b748f382264a15783cfa89f
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4409f5490280e0604e3d3b1cca67dbcb76685d723b748f382264a15783cfa89f", kill_on_drop: false }`
[INFO] [stderr]    Compiling metaheuristics v1.0.15 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/random_search/mod.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stdout]    |
[INFO] [stdout] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/random_search/mod.rs:30:31
[INFO] [stdout]    |
[INFO] [stdout] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stdout]    |
[INFO] [stdout] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stdout]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.85s
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "4409f5490280e0604e3d3b1cca67dbcb76685d723b748f382264a15783cfa89f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4409f5490280e0604e3d3b1cca67dbcb76685d723b748f382264a15783cfa89f", kill_on_drop: false }`
[INFO] [stdout] 4409f5490280e0604e3d3b1cca67dbcb76685d723b748f382264a15783cfa89f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-12/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" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] edfb020e7d6dfdfd2b6ef9df7d67127a2a52f52db3a5cedfa16365817c9d758e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "edfb020e7d6dfdfd2b6ef9df7d67127a2a52f52db3a5cedfa16365817c9d758e", kill_on_drop: false }`
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/random_search/mod.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/random_restarts/mod.rs:44:31
[INFO] [stderr]    |
[INFO] [stderr] 44 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration, probability: f64) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/hill_climbing/mod.rs:39:31
[INFO] [stderr]    |
[INFO] [stderr] 39 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/random_search/mod.rs:30:31
[INFO] [stderr]    |
[INFO] [stderr] 30 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/simulated_annealing/mod.rs:64:31
[INFO] [stderr]    |
[INFO] [stderr] 64 | pub fn solve<T>(problem: &mut Metaheuristics<T>, runtime: Duration) -> T {
[INFO] [stderr]    |                               ^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Metaheuristics<T>`
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/metaheuristics-2d87e52b0e0658eb
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests metaheuristics
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 14 tests
[INFO] [stdout] test src/hill_climbing/mod.rs - hill_climbing (line 17) ... FAILED
[INFO] [stdout] test src/simulated_annealing/mod.rs - simulated_annealing (line 44) ... FAILED
[INFO] [stdout] test src/lib.rs - (line 31) ... FAILED
[INFO] [stdout] test src/random_search/mod.rs - random_search (line 10) ... FAILED
[INFO] [stdout] test src/hill_climbing/random_restarts/mod.rs - hill_climbing::random_restarts (line 13) ... FAILED
[INFO] [stdout] test src/lib.rs - Metaheuristics::generate_candidate (line 84) ... FAILED
[INFO] [stdout] test src/lib.rs - Metaheuristics::tweak_candidate (line 100) ... FAILED
[INFO] [stdout] test src/lib.rs - Metaheuristics::clone_candidate (line 77) ... FAILED
[INFO] [stdout] test src/hill_climbing/random_restarts/mod.rs - hill_climbing::random_restarts::solve (line 37) ... FAILED
[INFO] [stdout] test src/simulated_annealing/mod.rs - simulated_annealing (line 18) ... FAILED
[INFO] [stdout] test src/simulated_annealing/mod.rs - simulated_annealing::solve (line 61) ... FAILED
[INFO] [stdout] test src/hill_climbing/mod.rs - hill_climbing::solve (line 36) ... FAILED
[INFO] [stdout] test src/lib.rs - Metaheuristics::rank_candidate (line 91) ... FAILED
[INFO] [stdout] test src/random_search/mod.rs - random_search::solve (line 27) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/hill_climbing/mod.rs - hill_climbing (line 17) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/hill_climbing/mod.rs:18:58
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::hill_climbing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/hill_climbing/mod.rs:18:67
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::hill_climbing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                   ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/simulated_annealing/mod.rs - simulated_annealing (line 44) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:45:64
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::simulated_annealing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:45:73
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::simulated_annealing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - (line 31) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/lib.rs:32:58
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::hill_climbing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/lib.rs:32:67
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::hill_climbing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                   ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/random_search/mod.rs - random_search (line 10) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/random_search/mod.rs:11:58
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::random_search::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/random_search/mod.rs:11:67
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::random_search::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                   ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/hill_climbing/random_restarts/mod.rs - hill_climbing::random_restarts (line 13) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/hill_climbing/random_restarts/mod.rs:15:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     &mut problem,
[INFO] [stdout]   |          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/hill_climbing/random_restarts/mod.rs:16:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     runtime,
[INFO] [stdout]   |     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `probability` in this scope
[INFO] [stdout]  --> src/hill_climbing/random_restarts/mod.rs:17:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     probability
[INFO] [stdout]   |     ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Metaheuristics::generate_candidate (line 84) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/lib.rs:85:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | let candidate = problem.generate_candidate();
[INFO] [stdout]   |                 ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Metaheuristics::tweak_candidate (line 100) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/lib.rs:101:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | let new_candidate = problem.tweak_candidate(&old_candidate);
[INFO] [stdout]   |                     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `old_candidate` in this scope
[INFO] [stdout]  --> src/lib.rs:101:46
[INFO] [stdout]   |
[INFO] [stdout] 3 | let new_candidate = problem.tweak_candidate(&old_candidate);
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Metaheuristics::clone_candidate (line 77) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/lib.rs:78:21
[INFO] [stdout]   |
[INFO] [stdout] 3 | let new_candidate = problem.clone_candidate(&old_candidate);
[INFO] [stdout]   |                     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `old_candidate` in this scope
[INFO] [stdout]  --> src/lib.rs:78:46
[INFO] [stdout]   |
[INFO] [stdout] 3 | let new_candidate = problem.clone_candidate(&old_candidate);
[INFO] [stdout]   |                                              ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/hill_climbing/random_restarts/mod.rs - hill_climbing::random_restarts::solve (line 37) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/hill_climbing/random_restarts/mod.rs:39:10
[INFO] [stdout]   |
[INFO] [stdout] 5 |     &mut problem,
[INFO] [stdout]   |          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/hill_climbing/random_restarts/mod.rs:40:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     runtime,
[INFO] [stdout]   |     ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `probability` in this scope
[INFO] [stdout]  --> src/hill_climbing/random_restarts/mod.rs:41:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     probability
[INFO] [stdout]   |     ^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/simulated_annealing/mod.rs - simulated_annealing (line 18) stdout ----
[INFO] [stdout] error[E0425]: cannot find function, tuple struct or tuple variant `P` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:19:1
[INFO] [stdout]   |
[INFO] [stdout] 3 | P(t) = e^(-10*(t^3))
[INFO] [stdout]   | ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `t` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:19:3
[INFO] [stdout]   |
[INFO] [stdout] 3 | P(t) = e^(-10*(t^3))
[INFO] [stdout]   |   ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `e` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:19:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | P(t) = e^(-10*(t^3))
[INFO] [stdout]   |        ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `t` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:19:16
[INFO] [stdout]   |
[INFO] [stdout] 3 | P(t) = e^(-10*(t^3))
[INFO] [stdout]   |                ^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0070]: invalid left-hand side of assignment
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:19:6
[INFO] [stdout]   |
[INFO] [stdout] 3 | P(t) = e^(-10*(t^3))
[INFO] [stdout]   | ---- ^
[INFO] [stdout]   | |
[INFO] [stdout]   | cannot assign to this expression
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0070, E0425.
[INFO] [stdout] For more information about an error, try `rustc --explain E0070`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/simulated_annealing/mod.rs - simulated_annealing::solve (line 61) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:62:64
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::simulated_annealing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/simulated_annealing/mod.rs:62:73
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::simulated_annealing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                         ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/hill_climbing/mod.rs - hill_climbing::solve (line 36) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/hill_climbing/mod.rs:37:58
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::hill_climbing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/hill_climbing/mod.rs:37:67
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::hill_climbing::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                   ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - Metaheuristics::rank_candidate (line 91) stdout ----
[INFO] [stdout] error: unexpected token: `...`
[INFO] [stdout]  --> src/lib.rs:93:6
[INFO] [stdout]   |
[INFO] [stdout] 4 |      ...
[INFO] [stdout]   |      ^^^
[INFO] [stdout]   |
[INFO] [stdout] help: use `..` for an exclusive range
[INFO] [stdout]   |
[INFO] [stdout] 4 |      ..
[INFO] [stdout]   |
[INFO] [stdout] help: or `..=` for an inclusive range
[INFO] [stdout]   |
[INFO] [stdout] 4 |      ..=
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0586]: inclusive range with no end
[INFO] [stdout]  --> src/lib.rs:93:6
[INFO] [stdout]   |
[INFO] [stdout] 4 |      ...
[INFO] [stdout]   |      ^^^ help: use `..` instead
[INFO] [stdout]   |
[INFO] [stdout]   = note: inclusive ranges must be bounded at the end (`..=b` or `a..=b`)
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/lib.rs:92:4
[INFO] [stdout]   |
[INFO] [stdout] 3 | if problem.rank_candidate(&new_candidate) > problem.rank_candidate(&old_candidate) {
[INFO] [stdout]   |    ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `new_candidate` in this scope
[INFO] [stdout]  --> src/lib.rs:92:28
[INFO] [stdout]   |
[INFO] [stdout] 3 | if problem.rank_candidate(&new_candidate) > problem.rank_candidate(&old_candidate) {
[INFO] [stdout]   |                            ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/lib.rs:92:45
[INFO] [stdout]   |
[INFO] [stdout] 3 | if problem.rank_candidate(&new_candidate) > problem.rank_candidate(&old_candidate) {
[INFO] [stdout]   |                                             ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `old_candidate` in this scope
[INFO] [stdout]  --> src/lib.rs:92:69
[INFO] [stdout]   |
[INFO] [stdout] 3 | if problem.rank_candidate(&new_candidate) > problem.rank_candidate(&old_candidate) {
[INFO] [stdout]   |                                                                     ^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 6 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0425, E0586.
[INFO] [stdout] For more information about an error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/random_search/mod.rs - random_search::solve (line 27) stdout ----
[INFO] [stdout] error[E0425]: cannot find value `problem` in this scope
[INFO] [stdout]  --> src/random_search/mod.rs:28:58
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::random_search::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                          ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find value `runtime` in this scope
[INFO] [stdout]  --> src/random_search/mod.rs:28:67
[INFO] [stdout]   |
[INFO] [stdout] 4 | let solution = metaheuristics::random_search::solve(&mut problem, runtime);
[INFO] [stdout]   |                                                                   ^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 2 previous errors
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0425`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/hill_climbing/mod.rs - hill_climbing (line 17)
[INFO] [stdout]     src/hill_climbing/mod.rs - hill_climbing::solve (line 36)
[INFO] [stdout]     src/hill_climbing/random_restarts/mod.rs - hill_climbing::random_restarts (line 13)
[INFO] [stdout]     src/hill_climbing/random_restarts/mod.rs - hill_climbing::random_restarts::solve (line 37)
[INFO] [stdout]     src/lib.rs - (line 31)
[INFO] [stdout]     src/lib.rs - Metaheuristics::clone_candidate (line 77)
[INFO] [stdout]     src/lib.rs - Metaheuristics::generate_candidate (line 84)
[INFO] [stdout]     src/lib.rs - Metaheuristics::rank_candidate (line 91)
[INFO] [stdout]     src/lib.rs - Metaheuristics::tweak_candidate (line 100)
[INFO] [stdout]     src/random_search/mod.rs - random_search (line 10)
[INFO] [stdout]     src/random_search/mod.rs - random_search::solve (line 27)
[INFO] [stdout]     src/simulated_annealing/mod.rs - simulated_annealing (line 18)
[INFO] [stdout]     src/simulated_annealing/mod.rs - simulated_annealing (line 44)
[INFO] [stdout]     src/simulated_annealing/mod.rs - simulated_annealing::solve (line 61)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 14 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] running `Command { std: "docker" "inspect" "edfb020e7d6dfdfd2b6ef9df7d67127a2a52f52db3a5cedfa16365817c9d758e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "edfb020e7d6dfdfd2b6ef9df7d67127a2a52f52db3a5cedfa16365817c9d758e", kill_on_drop: false }`
[INFO] [stdout] edfb020e7d6dfdfd2b6ef9df7d67127a2a52f52db3a5cedfa16365817c9d758e