[INFO] cloning repository https://github.com/duvholt/rust-metaheuristic-framework
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/duvholt/rust-metaheuristic-framework" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduvholt%2Frust-metaheuristic-framework", kill_on_drop: false }`
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[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 11c125e2a2840aed9b61b2f40b7bc406ec9970f2
[INFO] checking duvholt/rust-metaheuristic-framework against beta-2021-10-15 for beta-1.56-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fduvholt%2Frust-metaheuristic-framework" "/workspace/builds/worker-64/source", kill_on_drop: false }`
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[INFO] validating manifest of git repo https://github.com/duvholt/rust-metaheuristic-framework on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/duvholt/rust-metaheuristic-framework
[INFO] finished tweaking git repo https://github.com/duvholt/rust-metaheuristic-framework
[INFO] tweaked toml for git repo https://github.com/duvholt/rust-metaheuristic-framework written to /workspace/builds/worker-64/source/Cargo.toml
[INFO] crate git repo https://github.com/duvholt/rust-metaheuristic-framework already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-64/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-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 10ca93209a1f369a4fc9c2fac5c333901caefdf07ab53c748b0e0727ed6e33d1
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[INFO] running `Command { std: "docker" "rm" "-f" "10ca93209a1f369a4fc9c2fac5c333901caefdf07ab53c748b0e0727ed6e33d1", kill_on_drop: false }`
[INFO] [stdout] 10ca93209a1f369a4fc9c2fac5c333901caefdf07ab53c748b0e0727ed6e33d1
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[INFO] [stdout] 88fee6a7e188061ebd3254bc8548b719df11c0032f1dc839cd839a02a2c6ca1a
[INFO] running `Command { std: "docker" "start" "-a" "88fee6a7e188061ebd3254bc8548b719df11c0032f1dc839cd839a02a2c6ca1a", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking num-traits v0.2.2
[INFO] [stderr]     Checking libc v0.2.40
[INFO] [stderr]     Checking rustc-serialize v0.3.24
[INFO] [stderr]     Checking void v1.0.2
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[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking itertools v0.7.8
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[INFO] [stderr]     Checking num-integer v0.1.36
[INFO] [stderr]     Checking num-traits v0.1.43
[INFO] [stderr]     Checking rand v0.4.2
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[INFO] [stderr]     Checking num-complex v0.1.43
[INFO] [stderr]     Checking serde_json v1.0.14
[INFO] [stderr]    Compiling syn v0.13.1
[INFO] [stderr]     Checking num-iter v0.1.35
[INFO] [stderr]     Checking ordered-float v0.5.0
[INFO] [stderr]     Checking clap v2.31.2
[INFO] [stderr]     Checking num-bigint v0.1.43
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[INFO] [stderr]     Checking num-rational v0.1.42
[INFO] [stderr]     Checking num v0.1.42
[INFO] [stderr]    Compiling serde_derive_internals v0.23.1
[INFO] [stderr]     Checking statistical v0.1.1
[INFO] [stderr]    Compiling serde_derive v1.0.38
[INFO] [stderr]     Checking rustoa v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/distribution.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     (u / v.abs().powf(1.0 / beta))
[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]  --> src/fitness_evaluation.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type SingleTestFunction = Fn(&Vec<f64>) -> f64;
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> f64`
[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/fitness_evaluation.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type MultiTestFunction = Fn(&Vec<f64>) -> Vec<f64>;
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> Vec<f64>`
[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/fitness_evaluation.rs:79:88
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn read_shifted(&mut self, number: usize, dimensions: usize) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[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/fitness_evaluation.rs:93:87
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn read_rotate(&mut self, number: usize, dimensions: usize) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[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: unnecessary parentheses around type
[INFO] [stdout]   --> src/multiobjective/rank.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     dominates: HashSet<(usize)>,
[INFO] [stdout]    |                        ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/solution.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_single(solution: &Solution<f64>) -> SolutionJSON {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution<f64>`
[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/solution.rs:39:34
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_multi(solution: &Solution<Vec<f64>>) -> SolutionJSON {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution<Vec<f64>>`
[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] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> src/lib.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> src/distribution.rs:32:5
[INFO] [stdout]    |
[INFO] [stdout] 32 |     (u / v.abs().powf(1.0 / beta))
[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]  --> src/fitness_evaluation.rs:7:31
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub type SingleTestFunction = Fn(&Vec<f64>) -> f64;
[INFO] [stdout]   |                               ^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> f64`
[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/fitness_evaluation.rs:8:30
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub type MultiTestFunction = Fn(&Vec<f64>) -> Vec<f64>;
[INFO] [stdout]   |                              ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> Vec<f64>`
[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/fitness_evaluation.rs:79:88
[INFO] [stdout]    |
[INFO] [stdout] 79 |     pub fn read_shifted(&mut self, number: usize, dimensions: usize) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                        ^^^^^ help: use `dyn`: `dyn Error`
[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/fitness_evaluation.rs:93:87
[INFO] [stdout]    |
[INFO] [stdout] 93 |     pub fn read_rotate(&mut self, number: usize, dimensions: usize) -> Result<(), Box<Error>> {
[INFO] [stdout]    |                                                                                       ^^^^^ help: use `dyn`: `dyn Error`
[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: unnecessary parentheses around type
[INFO] [stdout]   --> src/multiobjective/rank.rs:10:24
[INFO] [stdout]    |
[INFO] [stdout] 10 |     dominates: HashSet<(usize)>,
[INFO] [stdout]    |                        ^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> src/problems/multi/dtlz.rs:188:28
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn dtlz_optimum(dtlz: &Fn(&Vec<f64>) -> Vec<f64>, sum: &Fn(Vec<f64>) -> f64, x: f64, f: f64) {
[INFO] [stdout]     |                            ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> Vec<f64>`
[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/problems/multi/dtlz.rs:188:61
[INFO] [stdout]     |
[INFO] [stdout] 188 |     fn dtlz_optimum(dtlz: &Fn(&Vec<f64>) -> Vec<f64>, sum: &Fn(Vec<f64>) -> f64, x: f64, f: f64) {
[INFO] [stdout]     |                                                             ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<f64>) -> f64`
[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/problems/multi/dtlz.rs:202:32
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn dtlz_not_optimum(dtlz: &Fn(&Vec<f64>) -> Vec<f64>, sum: &Fn(Vec<f64>) -> f64, f: f64) {
[INFO] [stdout]     |                                ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> Vec<f64>`
[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/problems/multi/dtlz.rs:202:65
[INFO] [stdout]     |
[INFO] [stdout] 202 |     fn dtlz_not_optimum(dtlz: &Fn(&Vec<f64>) -> Vec<f64>, sum: &Fn(Vec<f64>) -> f64, f: f64) {
[INFO] [stdout]     |                                                                 ^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(Vec<f64>) -> f64`
[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/solution.rs:32:35
[INFO] [stdout]    |
[INFO] [stdout] 32 |     pub fn from_single(solution: &Solution<f64>) -> SolutionJSON {
[INFO] [stdout]    |                                   ^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution<f64>`
[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/solution.rs:39:34
[INFO] [stdout]    |
[INFO] [stdout] 39 |     pub fn from_multi(solution: &Solution<Vec<f64>>) -> SolutionJSON {
[INFO] [stdout]    |                                  ^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Solution<Vec<f64>>`
[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/testing/utils.rs:29:40
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub fn jmetal_compare(number: i8, uf: &Fn(&Vec<f64>) -> Vec<f64>, name: &str) {
[INFO] [stdout]    |                                        ^^^^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Vec<f64>) -> Vec<f64>`
[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: the item `serde_json` is imported redundantly
[INFO] [stdout]   --> src/testing/utils.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     use serde_json;
[INFO] [stdout]    |         ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]   ::: src/lib.rs:15:1
[INFO] [stdout]    |
[INFO] [stdout] 15 | extern crate serde_json;
[INFO] [stdout]    | ------------------------ the item `serde_json` is already imported here
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rustoa` due to 2 previous errors; 8 warnings emitted
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to previous error; 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "88fee6a7e188061ebd3254bc8548b719df11c0032f1dc839cd839a02a2c6ca1a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88fee6a7e188061ebd3254bc8548b719df11c0032f1dc839cd839a02a2c6ca1a", kill_on_drop: false }`
[INFO] [stdout] 88fee6a7e188061ebd3254bc8548b719df11c0032f1dc839cd839a02a2c6ca1a
