[INFO] updating cached repository greizgh/hello-rust
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/greizgh/hello-rust
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/greizgh/hello-rust" "work/ex/beta-1.38-1/sources/1.37.0/gh/greizgh/hello-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/greizgh/hello-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/greizgh/hello-rust" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/greizgh/hello-rust"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/greizgh/hello-rust'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 7919ca39823e0ce858420c05c67fdf4d4f1b11a4
[INFO] sha for GitHub repo greizgh/hello-rust: 7919ca39823e0ce858420c05c67fdf4d4f1b11a4
[INFO] validating manifest of greizgh/hello-rust on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of greizgh/hello-rust on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing greizgh/hello-rust
[INFO] finished frobbing greizgh/hello-rust
[INFO] frobbed toml for greizgh/hello-rust written to work/ex/beta-1.38-1/sources/1.37.0/gh/greizgh/hello-rust/Cargo.toml
[INFO] started frobbing greizgh/hello-rust
[INFO] finished frobbing greizgh/hello-rust
[INFO] frobbed toml for greizgh/hello-rust written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/greizgh/hello-rust/Cargo.toml
[INFO] crate greizgh/hello-rust already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing greizgh/hello-rust against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/greizgh/hello-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] efb9c9f31616373ab58d9723e0bd1ffacb2d4215056dd8754eafe1b778eeae3e
[INFO] running `"docker" "start" "-a" "efb9c9f31616373ab58d9723e0bd1ffacb2d4215056dd8754eafe1b778eeae3e"`
[INFO] [stderr]    Compiling libc v0.2.16
[INFO] [stderr]    Compiling rand v0.3.14
[INFO] [stderr]    Compiling genetic v0.1.0 (/opt/crater/workdir)
[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] 
[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]     Finished dev [unoptimized + debuginfo] target(s) in 4.63s
[INFO] running `"docker" "inspect" "efb9c9f31616373ab58d9723e0bd1ffacb2d4215056dd8754eafe1b778eeae3e"`
[INFO] running `"docker" "rm" "-f" "efb9c9f31616373ab58d9723e0bd1ffacb2d4215056dd8754eafe1b778eeae3e"`
[INFO] [stdout] efb9c9f31616373ab58d9723e0bd1ffacb2d4215056dd8754eafe1b778eeae3e
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/greizgh/hello-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] b6fd525d0f805e38af6d91f38365b64231fd421bc642769e03fbddf862ca6bd8
[INFO] running `"docker" "start" "-a" "b6fd525d0f805e38af6d91f38365b64231fd421bc642769e03fbddf862ca6bd8"`
[INFO] [stderr]    Compiling genetic v0.1.0 (/opt/crater/workdir)
[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] 
[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]     Finished dev [unoptimized + debuginfo] target(s) in 1.20s
[INFO] running `"docker" "inspect" "b6fd525d0f805e38af6d91f38365b64231fd421bc642769e03fbddf862ca6bd8"`
[INFO] running `"docker" "rm" "-f" "b6fd525d0f805e38af6d91f38365b64231fd421bc642769e03fbddf862ca6bd8"`
[INFO] [stdout] b6fd525d0f805e38af6d91f38365b64231fd421bc642769e03fbddf862ca6bd8
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/greizgh/hello-rust:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] 632b485675e985c779be7bc12e7a1cb1990afdc430443c0f5e2849bba9e4ed4f
[INFO] running `"docker" "start" "-a" "632b485675e985c779be7bc12e7a1cb1990afdc430443c0f5e2849bba9e4ed4f"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/genetic-a1ae91f828cb3594
[INFO] [stdout] 
[INFO] [stdout] running 1 test
[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
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "632b485675e985c779be7bc12e7a1cb1990afdc430443c0f5e2849bba9e4ed4f"`
[INFO] running `"docker" "rm" "-f" "632b485675e985c779be7bc12e7a1cb1990afdc430443c0f5e2849bba9e4ed4f"`
[INFO] [stdout] 632b485675e985c779be7bc12e7a1cb1990afdc430443c0f5e2849bba9e4ed4f