[INFO] fetching crate rust-monster 0.1.0...
[INFO] testing rust-monster-0.1.0 against beta-2021-09-08 for beta-1.56-1
[INFO] extracting crate rust-monster 0.1.0 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate rust-monster 0.1.0 on toolchain beta-2021-09-08
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate rust-monster 0.1.0
[INFO] finished tweaking crates.io crate rust-monster 0.1.0
[INFO] tweaked toml for crates.io crate rust-monster 0.1.0 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-09-08" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 877a7d7748f682ffb64570eeba698d1617d1b26b3521d0cb050cc81e29e5128f
[INFO] running `Command { std: "docker" "start" "-a" "877a7d7748f682ffb64570eeba698d1617d1b26b3521d0cb050cc81e29e5128f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "877a7d7748f682ffb64570eeba698d1617d1b26b3521d0cb050cc81e29e5128f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "877a7d7748f682ffb64570eeba698d1617d1b26b3521d0cb050cc81e29e5128f", kill_on_drop: false }`
[INFO] [stdout] 877a7d7748f682ffb64570eeba698d1617d1b26b3521d0cb050cc81e29e5128f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6cd939c2df3d5f5028e2f66918211c4a5bd8309050ff5a8c2ebd48b823757269
[INFO] running `Command { std: "docker" "start" "-a" "6cd939c2df3d5f5028e2f66918211c4a5bd8309050ff5a8c2ebd48b823757269", kill_on_drop: false }`
[INFO] [stderr]    Compiling bitflags v0.5.0
[INFO] [stderr]    Compiling rust-monster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/ga/ga_core.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / /// Bit Flags for Genetic Algorithm Configuration 
[INFO] [stdout] 6 | | /// 
[INFO] [stdout] 7 | | ///
[INFO] [stdout]   | |_--^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ga/ga_core.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / bitflags!
[INFO] [stdout] 9  | | {
[INFO] [stdout] 10 | |     pub flags GAFlags: u32
[INFO] [stdout] 11 | |     {
[INFO] [stdout] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ga/ga_core.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / bitflags!
[INFO] [stdout] 9  | | {
[INFO] [stdout] 10 | |     pub flags GAFlags: u32
[INFO] [stdout] 11 | |     {
[INFO] [stdout] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ga/ga_core.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn config(&mut self) -> &GAConfig;
[INFO] [stdout]    |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ga/ga_simple.rs:83:37
[INFO] [stdout]    |
[INFO] [stdout] 83 |                factory: Option<&mut GAFactory<T>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn GAFactory<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_simple.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn config(&mut self) -> &GAConfig
[INFO] [stdout]     |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:130:26
[INFO] [stdout]     |
[INFO] [stdout] 130 |     score_selection: &'a GAScoreTypeBasedSelection<T>
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:135:23
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>) -> GARankSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:215:26
[INFO] [stdout]     |
[INFO] [stdout] 215 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GARouletteWheelSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:361:26
[INFO] [stdout]     |
[INFO] [stdout] 361 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:367:23
[INFO] [stdout]     |
[INFO] [stdout] 367 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GATournamentSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `population`
[INFO] [stdout]   --> src/ga/ga_selectors.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn update(&mut self, population: &mut GAPopulation<T>) {}
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_population`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pMutation` should have a snake case name
[INFO] [stdout]   --> src/ga/ga_core.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn mutate(&mut self, pMutation : f32);
[INFO] [stdout]    |                          ^^^^^^^^^ help: convert the identifier to snake case: `p_mutation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.08s
[INFO] running `Command { std: "docker" "inspect" "6cd939c2df3d5f5028e2f66918211c4a5bd8309050ff5a8c2ebd48b823757269", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6cd939c2df3d5f5028e2f66918211c4a5bd8309050ff5a8c2ebd48b823757269", kill_on_drop: false }`
[INFO] [stdout] 6cd939c2df3d5f5028e2f66918211c4a5bd8309050ff5a8c2ebd48b823757269
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3e7caa598eaa489e3d2ef996f229975d77bac44ec2a3864cbf0b54118c67915b
[INFO] running `Command { std: "docker" "start" "-a" "3e7caa598eaa489e3d2ef996f229975d77bac44ec2a3864cbf0b54118c67915b", kill_on_drop: false }`
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/ga/ga_core.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / /// Bit Flags for Genetic Algorithm Configuration 
[INFO] [stdout] 6 | | /// 
[INFO] [stdout] 7 | | ///
[INFO] [stdout]   | |_--^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ga/ga_core.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / bitflags!
[INFO] [stdout] 9  | | {
[INFO] [stdout] 10 | |     pub flags GAFlags: u32
[INFO] [stdout] 11 | |     {
[INFO] [stdout] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ga/ga_core.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / bitflags!
[INFO] [stdout] 9  | | {
[INFO] [stdout] 10 | |     pub flags GAFlags: u32
[INFO] [stdout] 11 | |     {
[INFO] [stdout] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ga/ga_core.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn config(&mut self) -> &GAConfig;
[INFO] [stdout]    |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ga/ga_simple.rs:83:37
[INFO] [stdout]    |
[INFO] [stdout] 83 |                factory: Option<&mut GAFactory<T>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn GAFactory<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_simple.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn config(&mut self) -> &GAConfig
[INFO] [stdout]     |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[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] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rust-monster v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:130:26
[INFO] [stdout]     |
[INFO] [stdout] 130 |     score_selection: &'a GAScoreTypeBasedSelection<T>
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:135:23
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>) -> GARankSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:215:26
[INFO] [stdout]     |
[INFO] [stdout] 215 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GARouletteWheelSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:361:26
[INFO] [stdout]     |
[INFO] [stdout] 361 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:367:23
[INFO] [stdout]     |
[INFO] [stdout] 367 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GATournamentSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `population`
[INFO] [stdout]   --> src/ga/ga_selectors.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn update(&mut self, population: &mut GAPopulation<T>) {}
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_population`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pMutation` should have a snake case name
[INFO] [stdout]   --> src/ga/ga_core.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn mutate(&mut self, pMutation : f32);
[INFO] [stdout]    |                          ^^^^^^^^^ help: convert the identifier to snake case: `p_mutation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> tests/lib.rs:38:36
[INFO] [stdout]    |
[INFO] [stdout] 38 |         fn fitness(&self) -> f32 { (1.0 / self.fitness) }
[INFO] [stdout]    |                                    ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> tests/lib.rs:106:76
[INFO] [stdout]     |
[INFO] [stdout] 106 | ...                   Some(&mut factory as &mut GAFactory<TestSolution>),
[INFO] [stdout]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAFactory<TestSolution>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused doc comment
[INFO] [stdout]  --> src/ga/ga_core.rs:5:1
[INFO] [stdout]   |
[INFO] [stdout] 5 | / /// Bit Flags for Genetic Algorithm Configuration 
[INFO] [stdout] 6 | | /// 
[INFO] [stdout] 7 | | ///
[INFO] [stdout]   | |_--^
[INFO] [stdout]   |   |
[INFO] [stdout]   |   rustdoc does not generate documentation for macro invocations
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stdout]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ga/ga_core.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / bitflags!
[INFO] [stdout] 9  | | {
[INFO] [stdout] 10 | |     pub flags GAFlags: u32
[INFO] [stdout] 11 | |     {
[INFO] [stdout] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stdout]   --> src/ga/ga_core.rs:8:1
[INFO] [stdout]    |
[INFO] [stdout] 8  | / bitflags!
[INFO] [stdout] 9  | | {
[INFO] [stdout] 10 | |     pub flags GAFlags: u32
[INFO] [stdout] 11 | |     {
[INFO] [stdout] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stdout] 13 | |     }
[INFO] [stdout] 14 | | }
[INFO] [stdout]    | |_^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ga/ga_core.rs:82:30
[INFO] [stdout]    |
[INFO] [stdout] 82 |     fn config(&mut self) -> &GAConfig;
[INFO] [stdout]    |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/ga/ga_simple.rs:83:37
[INFO] [stdout]    |
[INFO] [stdout] 83 |                factory: Option<&mut GAFactory<T>>,
[INFO] [stdout]    |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn GAFactory<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_simple.rs:113:30
[INFO] [stdout]     |
[INFO] [stdout] 113 |     fn config(&mut self) -> &GAConfig
[INFO] [stdout]     |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:130:26
[INFO] [stdout]     |
[INFO] [stdout] 130 |     score_selection: &'a GAScoreTypeBasedSelection<T>
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:135:23
[INFO] [stdout]     |
[INFO] [stdout] 135 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>) -> GARankSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:215:26
[INFO] [stdout]     |
[INFO] [stdout] 215 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:222:23
[INFO] [stdout]     |
[INFO] [stdout] 222 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GARouletteWheelSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:361:26
[INFO] [stdout]     |
[INFO] [stdout] 361 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stdout]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/ga/ga_selectors.rs:367:23
[INFO] [stdout]     |
[INFO] [stdout] 367 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GATournamentSelector<'a, T>
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `population`
[INFO] [stdout]   --> src/ga/ga_selectors.rs:42:26
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn update(&mut self, population: &mut GAPopulation<T>) {}
[INFO] [stdout]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_population`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `pMutation` should have a snake case name
[INFO] [stdout]   --> src/ga/ga_core.rs:40:26
[INFO] [stdout]    |
[INFO] [stdout] 40 |     fn mutate(&mut self, pMutation : f32);
[INFO] [stdout]    |                          ^^^^^^^^^ help: convert the identifier to snake case: `p_mutation`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.14s
[INFO] running `Command { std: "docker" "inspect" "3e7caa598eaa489e3d2ef996f229975d77bac44ec2a3864cbf0b54118c67915b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3e7caa598eaa489e3d2ef996f229975d77bac44ec2a3864cbf0b54118c67915b", kill_on_drop: false }`
[INFO] [stdout] 3e7caa598eaa489e3d2ef996f229975d77bac44ec2a3864cbf0b54118c67915b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-09-08" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 8e5825de529e28d4d8655e5f0da641fe5e1b1aac83c54b48a8948d41c65ccebb
[INFO] running `Command { std: "docker" "start" "-a" "8e5825de529e28d4d8655e5f0da641fe5e1b1aac83c54b48a8948d41c65ccebb", kill_on_drop: false }`
[INFO] [stderr] warning: unused doc comment
[INFO] [stderr]  --> src/ga/ga_core.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | / /// Bit Flags for Genetic Algorithm Configuration 
[INFO] [stderr] 6 | | /// 
[INFO] [stderr] 7 | | ///
[INFO] [stderr]   | |_--^
[INFO] [stderr]   |   |
[INFO] [stderr]   |   rustdoc does not generate documentation for macro invocations
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_doc_comments)]` on by default
[INFO] [stderr]   = help: to document an item produced by a macro, the macro must produce the documentation as part of its expansion
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ga/ga_core.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / bitflags!
[INFO] [stderr] 9  | | {
[INFO] [stderr] 10 | |     pub flags GAFlags: u32
[INFO] [stderr] 11 | |     {
[INFO] [stderr] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated macro `try`: use the `?` operator instead
[INFO] [stderr]   --> src/ga/ga_core.rs:8:1
[INFO] [stderr]    |
[INFO] [stderr] 8  | / bitflags!
[INFO] [stderr] 9  | | {
[INFO] [stderr] 10 | |     pub flags GAFlags: u32
[INFO] [stderr] 11 | |     {
[INFO] [stderr] 12 | |         const DEBUG_FLAG = 0b00000001
[INFO] [stderr] 13 | |     }
[INFO] [stderr] 14 | | }
[INFO] [stderr]    | |_^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this warning originates in the macro `bitflags` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ga/ga_core.rs:82:30
[INFO] [stderr]    |
[INFO] [stderr] 82 |     fn config(&mut self) -> &GAConfig;
[INFO] [stderr]    |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/ga/ga_simple.rs:83:37
[INFO] [stderr]    |
[INFO] [stderr] 83 |                factory: Option<&mut GAFactory<T>>,
[INFO] [stderr]    |                                     ^^^^^^^^^^^^ help: use `dyn`: `dyn GAFactory<T>`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_simple.rs:113:30
[INFO] [stderr]     |
[INFO] [stderr] 113 |     fn config(&mut self) -> &GAConfig
[INFO] [stderr]     |                              ^^^^^^^^ help: use `dyn`: `dyn GAConfig`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_selectors.rs:130:26
[INFO] [stderr]     |
[INFO] [stderr] 130 |     score_selection: &'a GAScoreTypeBasedSelection<T>
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_selectors.rs:135:23
[INFO] [stderr]     |
[INFO] [stderr] 135 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>) -> GARankSelector<'a, T>
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_selectors.rs:215:26
[INFO] [stderr]     |
[INFO] [stderr] 215 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_selectors.rs:222:23
[INFO] [stderr]     |
[INFO] [stderr] 222 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GARouletteWheelSelector<'a, T>
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_selectors.rs:361:26
[INFO] [stderr]     |
[INFO] [stderr] 361 |     score_selection: &'a GAScoreTypeBasedSelection<T>,
[INFO] [stderr]     |                          ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ga/ga_selectors.rs:367:23
[INFO] [stderr]     |
[INFO] [stderr] 367 |     pub fn new(s: &'a GAScoreTypeBasedSelection<T>, p_size: usize) -> GATournamentSelector<'a, T>
[INFO] [stderr]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAScoreTypeBasedSelection<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `population`
[INFO] [stderr]   --> src/ga/ga_selectors.rs:42:26
[INFO] [stderr]    |
[INFO] [stderr] 42 |     fn update(&mut self, population: &mut GAPopulation<T>) {}
[INFO] [stderr]    |                          ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_population`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable `pMutation` should have a snake case name
[INFO] [stderr]   --> src/ga/ga_core.rs:40:26
[INFO] [stderr]    |
[INFO] [stderr] 40 |     fn mutate(&mut self, pMutation : f32);
[INFO] [stderr]    |                          ^^^^^^^^^ help: convert the identifier to snake case: `p_mutation`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-monster` (lib) generated 14 warnings
[INFO] [stderr] warning: unnecessary parentheses around block return value
[INFO] [stderr]   --> tests/lib.rs:38:36
[INFO] [stderr]    |
[INFO] [stderr] 38 |         fn fitness(&self) -> f32 { (1.0 / self.fitness) }
[INFO] [stderr]    |                                    ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> tests/lib.rs:106:76
[INFO] [stderr]     |
[INFO] [stderr] 106 | ...                   Some(&mut factory as &mut GAFactory<TestSolution>),
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn GAFactory<TestSolution>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stderr]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stderr] 
[INFO] [stderr] warning: `rust-monster` (test "lib") generated 2 warnings
[INFO] [stderr] warning: `rust-monster` (lib test) generated 14 warnings (14 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/rust_monster-fbb06f5b288620a0)
[INFO] [stdout] running 3 tests
[INFO] [stdout] test ga::ga_random::test::same_seed ... ok
[INFO] [stdout] test ga::ga_random::test::diff_seed ... ok
[INFO] [stderr]      Running tests/lib.rs (/opt/rustwide/target/debug/deps/lib-9000b1974327bb8e)
[INFO] [stdout] test ga::ga_random::test::same_seed_different_types ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 3 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.02s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test tests::test_uniform_selector ... ok
[INFO] [stdout] test tests::test_rank_selector ... ok
[INFO] [stdout] test tests::test_roulette_wheel_selector ... ok
[INFO] [stdout] test tests::init_test_with_initial_population ... ok
[INFO] [stdout] test tests::test_sort_population ... ok
[INFO] [stdout] test tests::test_tournament_selector ... ok
[INFO] [stdout] test tests::init_test_with_factory ... ok
[INFO] [stderr]    Doc-tests rust-monster
[INFO] [stdout] test tests::init_test_missing_args - should panic ... ok
[INFO] [stdout] test tests::init_test_empty_initial_pop - should panic ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.06s
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[INFO] [stdout] test src/ga/ga_random.rs - ga::ga_random (line 16) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.37s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "8e5825de529e28d4d8655e5f0da641fe5e1b1aac83c54b48a8948d41c65ccebb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e5825de529e28d4d8655e5f0da641fe5e1b1aac83c54b48a8948d41c65ccebb", kill_on_drop: false }`
[INFO] [stdout] 8e5825de529e28d4d8655e5f0da641fe5e1b1aac83c54b48a8948d41c65ccebb