[INFO] cloning repository https://github.com/Zuchis/genetic-algorithm-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Zuchis/genetic-algorithm-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZuchis%2Fgenetic-algorithm-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZuchis%2Fgenetic-algorithm-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bcf070273532deade17285dc55bb4ffaed1e1b0
[INFO] checking Zuchis/genetic-algorithm-rust against try#f6e2f78768c57172b99c3e85892f867894dc7e30 for pr-75502
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FZuchis%2Fgenetic-algorithm-rust" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Zuchis/genetic-algorithm-rust on toolchain f6e2f78768c57172b99c3e85892f867894dc7e30
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Zuchis/genetic-algorithm-rust
[INFO] finished tweaking git repo https://github.com/Zuchis/genetic-algorithm-rust
[INFO] tweaked toml for git repo https://github.com/Zuchis/genetic-algorithm-rust written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/Zuchis/genetic-algorithm-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded num-complex v0.1.37
[INFO] [stderr]   Downloaded num-iter v0.1.33
[INFO] [stderr]   Downloaded libc v0.2.21
[INFO] [stderr]   Downloaded num-integer v0.1.34
[INFO] [stderr]   Downloaded rustc-serialize v0.3.23
[INFO] [stderr]   Downloaded num-rational v0.1.36
[INFO] [stderr]   Downloaded num-traits v0.1.37
[INFO] [stderr]   Downloaded num v0.1.37
[INFO] [stderr]   Downloaded num-bigint v0.1.37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 02ee31482f4bc48f564e04d035b49fe1c9ef1ae843a5bc5ca8d94d873e3ed3de
[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" "02ee31482f4bc48f564e04d035b49fe1c9ef1ae843a5bc5ca8d94d873e3ed3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "02ee31482f4bc48f564e04d035b49fe1c9ef1ae843a5bc5ca8d94d873e3ed3de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "02ee31482f4bc48f564e04d035b49fe1c9ef1ae843a5bc5ca8d94d873e3ed3de", kill_on_drop: false }`
[INFO] [stdout] 02ee31482f4bc48f564e04d035b49fe1c9ef1ae843a5bc5ca8d94d873e3ed3de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+f6e2f78768c57172b99c3e85892f867894dc7e30" "check" "--frozen" "--all" "--all-targets" "--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] d34a3ae4060d45f098ccc79eead49ca6fe3f6458a2441c4afe6813ce3d96426e
[INFO] running `Command { std: "docker" "start" "-a" "d34a3ae4060d45f098ccc79eead49ca6fe3f6458a2441c4afe6813ce3d96426e", kill_on_drop: false }`
[INFO] [stderr]     Checking num-integer v0.1.34
[INFO] [stderr]     Checking rand v0.3.15
[INFO] [stderr]     Checking num-complex v0.1.37
[INFO] [stderr]     Checking num-iter v0.1.33
[INFO] [stderr]     Checking num-bigint v0.1.37
[INFO] [stderr]     Checking num-rational v0.1.36
[INFO] [stderr]     Checking num v0.1.37
[INFO] [stderr]     Checking genetic-algorithm-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]  --> src/fitness.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn fitness(&self, &Fn(&T) -> f64) -> f64;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> f64`
[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/fitness.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn fitness(&self, f: &Fn(&T) -> f64) -> f64 {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/crossover.rs:44:39
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let interval = Range::new(1usize, (parent1.len() -1));
[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.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     fn fitness(&self, &Fn(&T) -> f64) -> f64;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> f64`
[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/fitness.rs:12:27
[INFO] [stdout]    |
[INFO] [stdout] 12 |     fn fitness(&self, f: &Fn(&T) -> f64) -> f64 {
[INFO] [stdout]    |                           ^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&T) -> f64`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]   --> src/crossover.rs:44:39
[INFO] [stdout]    |
[INFO] [stdout] 44 |     let interval = Range::new(1usize, (parent1.len() -1));
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 6.22s
[INFO] running `Command { std: "docker" "inspect" "d34a3ae4060d45f098ccc79eead49ca6fe3f6458a2441c4afe6813ce3d96426e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d34a3ae4060d45f098ccc79eead49ca6fe3f6458a2441c4afe6813ce3d96426e", kill_on_drop: false }`
[INFO] [stdout] d34a3ae4060d45f098ccc79eead49ca6fe3f6458a2441c4afe6813ce3d96426e