[INFO] crate revonet 0.2.1 is already in cache
[INFO] extracting crate revonet 0.2.1 into work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/revonet/0.2.1
[INFO] extracting crate revonet 0.2.1 into work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/revonet/0.2.1
[INFO] validating manifest of revonet-0.2.1 on toolchain master#60960a260f7b5c695fd0717311d72ce62dd4eb43
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of revonet-0.2.1 on toolchain try#266783e4e09e4e9d5307c1c8e695659c58bbcac7
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing revonet-0.2.1
[INFO] finished frobbing revonet-0.2.1
[INFO] frobbed toml for revonet-0.2.1 written to work/ex/pr-63376/sources/master#60960a260f7b5c695fd0717311d72ce62dd4eb43/reg/revonet/0.2.1/Cargo.toml
[INFO] started frobbing revonet-0.2.1
[INFO] finished frobbing revonet-0.2.1
[INFO] frobbed toml for revonet-0.2.1 written to work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/revonet/0.2.1/Cargo.toml
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+60960a260f7b5c695fd0717311d72ce62dd4eb43-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking revonet-0.2.1 against try#266783e4e09e4e9d5307c1c8e695659c58bbcac7 for pr-63376
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-63376/worker-4/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-63376/sources/try#266783e4e09e4e9d5307c1c8e695659c58bbcac7/reg/revonet/0.2.1:/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=forbid" "-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" "+266783e4e09e4e9d5307c1c8e695659c58bbcac7-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b4f865f40e3b65a160dd795f7bec983c3f35171d4019641f92d22753ec4bb53c
[INFO] running `"docker" "start" "-a" "b4f865f40e3b65a160dd795f7bec983c3f35171d4019641f92d22753ec4bb53c"`
[INFO] [stderr]     Checking revonet v0.2.1 (/opt/crater/workdir)
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]    --> src/ea.rs:245:69
[INFO] [stderr]     |
[INFO] [stderr] 245 | fn select_tournament(fits: &Vec<f32>, tour_size: u32, mut rng: &mut Rng) -> Vec<usize> {
[INFO] [stderr]     |                                                                     ^^^ help: use `dyn`: `dyn Rng`
[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/ea.rs:245:69
[INFO] [stderr]     |
[INFO] [stderr] 245 | fn select_tournament(fits: &Vec<f32>, tour_size: u32, mut rng: &mut Rng) -> Vec<usize> {
[INFO] [stderr]     |                                                                     ^^^ help: use `dyn`: `dyn Rng`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ea.rs:65:45
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn init<R: Rng>(&mut self, size: usize, mut rng: &mut R) {
[INFO] [stderr]    |                                             ----^^^
[INFO] [stderr]    |                                             |
[INFO] [stderr]    |                                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ea.rs:228:97
[INFO] [stderr]     |
[INFO] [stderr] 228 | pub fn create_population<T: Individual, P: Problem, R: Rng+Sized>(pop_size: u32, ind_size: u32, mut rng: &mut R, problem: &P) -> Vec<T> {
[INFO] [stderr]     |                                                                                                 ----^^^
[INFO] [stderr]     |                                                                                                 |
[INFO] [stderr]     |                                                                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ga.rs:82:182
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn cross<R: Rng+Sized, T: Individual+Clone>(popul: &Vec<T>, sel_inds: &Vec<usize>, children: &mut Vec<T>, use_elite: bool, x_type: CrossoverOperator, x_prob: f32, x_alpha: f32, mut rng: &mut R) {
[INFO] [stderr]    |                                                                                                                                                                                      ----^^^
[INFO] [stderr]    |                                                                                                                                                                                      |
[INFO] [stderr]    |                                                                                                                                                                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ga.rs:121:102
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn cross_arithmetic<T: Individual, R: Rng+Sized>(p1: &T, p2: &T, c1: &mut T, c2: &mut T, alpha: f32, mut rng: &mut R) {
[INFO] [stderr]     |                                                                                                      ----^^^
[INFO] [stderr]     |                                                                                                      |
[INFO] [stderr]     |                                                                                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ne.rs:67:45
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn init<R: Rng>(&mut self, size: usize, mut rng: &mut R) {
[INFO] [stderr]    |                                             ----^^^
[INFO] [stderr]    |                                             |
[INFO] [stderr]    |                                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/problem.rs:53:73
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn get_random_individual<T: Individual, R: Rng>(&self, size: usize, mut rng: &mut R) -> T {
[INFO] [stderr]    |                                                                         ----^^^
[INFO] [stderr]    |                                                                         |
[INFO] [stderr]    |                                                                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ea.rs:65:45
[INFO] [stderr]    |
[INFO] [stderr] 65 |     fn init<R: Rng>(&mut self, size: usize, mut rng: &mut R) {
[INFO] [stderr]    |                                             ----^^^
[INFO] [stderr]    |                                             |
[INFO] [stderr]    |                                             help: remove this `mut`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ea.rs:228:97
[INFO] [stderr]     |
[INFO] [stderr] 228 | pub fn create_population<T: Individual, P: Problem, R: Rng+Sized>(pop_size: u32, ind_size: u32, mut rng: &mut R, problem: &P) -> Vec<T> {
[INFO] [stderr]     |                                                                                                 ----^^^
[INFO] [stderr]     |                                                                                                 |
[INFO] [stderr]     |                                                                                                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ga.rs:82:182
[INFO] [stderr]    |
[INFO] [stderr] 82 | pub fn cross<R: Rng+Sized, T: Individual+Clone>(popul: &Vec<T>, sel_inds: &Vec<usize>, children: &mut Vec<T>, use_elite: bool, x_type: CrossoverOperator, x_prob: f32, x_alpha: f32, mut rng: &mut R) {
[INFO] [stderr]    |                                                                                                                                                                                      ----^^^
[INFO] [stderr]    |                                                                                                                                                                                      |
[INFO] [stderr]    |                                                                                                                                                                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/ga.rs:121:102
[INFO] [stderr]     |
[INFO] [stderr] 121 | fn cross_arithmetic<T: Individual, R: Rng+Sized>(p1: &T, p2: &T, c1: &mut T, c2: &mut T, alpha: f32, mut rng: &mut R) {
[INFO] [stderr]     |                                                                                                      ----^^^
[INFO] [stderr]     |                                                                                                      |
[INFO] [stderr]     |                                                                                                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/ne.rs:67:45
[INFO] [stderr]    |
[INFO] [stderr] 67 |     fn init<R: Rng>(&mut self, size: usize, mut rng: &mut R) {
[INFO] [stderr]    |                                             ----^^^
[INFO] [stderr]    |                                             |
[INFO] [stderr]    |                                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/problem.rs:53:73
[INFO] [stderr]    |
[INFO] [stderr] 53 |     fn get_random_individual<T: Individual, R: Rng>(&self, size: usize, mut rng: &mut R) -> T {
[INFO] [stderr]    |                                                                         ----^^^
[INFO] [stderr]    |                                                                         |
[INFO] [stderr]    |                                                                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 5.01s
[INFO] running `"docker" "inspect" "b4f865f40e3b65a160dd795f7bec983c3f35171d4019641f92d22753ec4bb53c"`
[INFO] running `"docker" "rm" "-f" "b4f865f40e3b65a160dd795f7bec983c3f35171d4019641f92d22753ec4bb53c"`
[INFO] [stdout] b4f865f40e3b65a160dd795f7bec983c3f35171d4019641f92d22753ec4bb53c