[INFO] cloning repository https://github.com/greizgh/hello-rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/greizgh/hello-rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreizgh%2Fhello-rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreizgh%2Fhello-rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7919ca39823e0ce858420c05c67fdf4d4f1b11a4
[INFO] testing greizgh/hello-rust against try#ce59db7a1b1b012fb2793c4641c1bdecad7a128b for pr-85530
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fgreizgh%2Fhello-rust" "/workspace/builds/worker-1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/greizgh/hello-rust on toolchain ce59db7a1b1b012fb2793c4641c1bdecad7a128b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/greizgh/hello-rust
[INFO] finished tweaking git repo https://github.com/greizgh/hello-rust
[INFO] tweaked toml for git repo https://github.com/greizgh/hello-rust written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] crate git repo https://github.com/greizgh/hello-rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded libc v0.2.16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a463ab247f7a32f0f4df1459d2ba92ee9d88e838816f85bcda05e3fc15f2e77b
[INFO] running `Command { std: "docker" "start" "-a" "a463ab247f7a32f0f4df1459d2ba92ee9d88e838816f85bcda05e3fc15f2e77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a463ab247f7a32f0f4df1459d2ba92ee9d88e838816f85bcda05e3fc15f2e77b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a463ab247f7a32f0f4df1459d2ba92ee9d88e838816f85bcda05e3fc15f2e77b", kill_on_drop: false }`
[INFO] [stdout] a463ab247f7a32f0f4df1459d2ba92ee9d88e838816f85bcda05e3fc15f2e77b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3aa43aafbc21ec761f4954e7b513f099b2c5127773469de99496c5abd7b68f16
[INFO] running `Command { std: "docker" "start" "-a" "3aa43aafbc21ec761f4954e7b513f099b2c5127773469de99496c5abd7b68f16", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling genetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:65:18
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fitness: &'a (Fn(&Individual) -> i32),
[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/main.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fitness: &'a (Fn(&Individual) -> i32),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Individual) -> i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:70:93
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn new(size: usize, chromosome_size: usize, crossover: f32, mutation: f32, fitness: &'a Fn(&Individual) -> i32 ) -> Population<'a> {
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Individual) -> i32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `Command { std: "docker" "inspect" "3aa43aafbc21ec761f4954e7b513f099b2c5127773469de99496c5abd7b68f16", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3aa43aafbc21ec761f4954e7b513f099b2c5127773469de99496c5abd7b68f16", kill_on_drop: false }`
[INFO] [stdout] 3aa43aafbc21ec761f4954e7b513f099b2c5127773469de99496c5abd7b68f16
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7d4870dcfe534b646aff5fc9f86ac4c026cd1dd49d26e06ea9477b1db4b22ee9
[INFO] running `Command { std: "docker" "start" "-a" "7d4870dcfe534b646aff5fc9f86ac4c026cd1dd49d26e06ea9477b1db4b22ee9", kill_on_drop: false }`
[INFO] [stderr]    Compiling genetic v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> src/main.rs:65:18
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fitness: &'a (Fn(&Individual) -> i32),
[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/main.rs:65:19
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fitness: &'a (Fn(&Individual) -> i32),
[INFO] [stdout]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Individual) -> i32`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:70:93
[INFO] [stdout]    |
[INFO] [stdout] 70 |     fn new(size: usize, chromosome_size: usize, crossover: f32, mutation: f32, fitness: &'a Fn(&Individual) -> i32 ) -> Population<'a> {
[INFO] [stdout]    |                                                                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Individual) -> i32`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.50s
[INFO] running `Command { std: "docker" "inspect" "7d4870dcfe534b646aff5fc9f86ac4c026cd1dd49d26e06ea9477b1db4b22ee9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7d4870dcfe534b646aff5fc9f86ac4c026cd1dd49d26e06ea9477b1db4b22ee9", kill_on_drop: false }`
[INFO] [stdout] 7d4870dcfe534b646aff5fc9f86ac4c026cd1dd49d26e06ea9477b1db4b22ee9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+ce59db7a1b1b012fb2793c4641c1bdecad7a128b" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 28dad6acd6c7961320ab4bc344d12b18d9f2632ca7249863e9c2cfb79aacb935
[INFO] running `Command { std: "docker" "start" "-a" "28dad6acd6c7961320ab4bc344d12b18d9f2632ca7249863e9c2cfb79aacb935", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: unnecessary parentheses around type
[INFO] [stdout] running 1 test
[INFO] [stderr]   --> src/main.rs:65:18
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fitness: &'a (Fn(&Individual) -> i32),
[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]   --> src/main.rs:65:19
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fitness: &'a (Fn(&Individual) -> i32),
[INFO] [stderr]    |                   ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Individual) -> i32`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:70:93
[INFO] [stderr]    |
[INFO] [stderr] 70 |     fn new(size: usize, chromosome_size: usize, crossover: f32, mutation: f32, fitness: &'a Fn(&Individual) -> i32 ) -> Population<'a> {
[INFO] [stderr]    |                                                                                             ^^^^^^^^^^^^^^^^^^^^^^ help: use `dyn`: `dyn Fn(&Individual) -> i32`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in the 2021 edition!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: 3 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/genetic-2ba16cb555864488)
[INFO] [stdout] test levenshtein::test_levenshtein ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 1 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "28dad6acd6c7961320ab4bc344d12b18d9f2632ca7249863e9c2cfb79aacb935", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "28dad6acd6c7961320ab4bc344d12b18d9f2632ca7249863e9c2cfb79aacb935", kill_on_drop: false }`
[INFO] [stdout] 28dad6acd6c7961320ab4bc344d12b18d9f2632ca7249863e9c2cfb79aacb935