[INFO] cloning repository https://github.com/JMurph2015/rust-vebtrees
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JMurph2015/rust-vebtrees" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frust-vebtrees", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frust-vebtrees'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 0120b1332b903167260df47a8b43430faca81f9c
[INFO] testing JMurph2015/rust-vebtrees against 1.47.0 for beta-1.48-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frust-vebtrees" "/workspace/builds/worker-5/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JMurph2015/rust-vebtrees on toolchain 1.47.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/JMurph2015/rust-vebtrees
[INFO] finished tweaking git repo https://github.com/JMurph2015/rust-vebtrees
[INFO] tweaked toml for git repo https://github.com/JMurph2015/rust-vebtrees written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/JMurph2015/rust-vebtrees already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr] error: the lock file /workspace/builds/worker-5/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.47.0" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1a78cbc4e968a15322b14e26d8130fe5fbc5273329d01d68abcd200825fbf7d4
[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" "1a78cbc4e968a15322b14e26d8130fe5fbc5273329d01d68abcd200825fbf7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1a78cbc4e968a15322b14e26d8130fe5fbc5273329d01d68abcd200825fbf7d4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1a78cbc4e968a15322b14e26d8130fe5fbc5273329d01d68abcd200825fbf7d4", kill_on_drop: false }`
[INFO] [stdout] 1a78cbc4e968a15322b14e26d8130fe5fbc5273329d01d68abcd200825fbf7d4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 561584bcc92d39717aa21418d535140a5ad5d63f685658edf0662bc689105ac3
[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" "561584bcc92d39717aa21418d535140a5ad5d63f685658edf0662bc689105ac3", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling vebtrees v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:285:61
[INFO] [stdout]     |
[INFO] [stdout] 285 |   ...                   self.min = Some((first_cluster
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 286 | | ...                                   * self.children.len() as T
[INFO] [stdout] 287 | | ...                                    + min));
[INFO] [stdout]     | |_____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 285 |                                             self.min = Some(first_cluster
[INFO] [stdout] 286 |                                                             * self.children.len() as T
[INFO] [stdout] 287 |                                                              + min);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:312:61
[INFO] [stdout]     |
[INFO] [stdout] 312 |   ...                   self.max = Some((last_cluster
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 313 | | ...                                    * self.children.len() as T
[INFO] [stdout] 314 | | ...                                    + max));
[INFO] [stdout]     | |_____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 |                                             self.max = Some(last_cluster
[INFO] [stdout] 313 |                                                              * self.children.len() as T
[INFO] [stdout] 314 |                                                              + max);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:406:25
[INFO] [stdout]     |
[INFO] [stdout] 406 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 407 | ||                             Some(n) => {
[INFO] [stdout] 408 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stdout] 409 | ||                             },
[INFO] [stdout] ...   ||
[INFO] [stdout] 412 | ||                             }
[INFO] [stdout] 413 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |                return match self.children[next_cluster].search(offset) {
[INFO] [stdout]     |  ______________^______-
[INFO] [stdout]     | | _____________|
[INFO] [stdout]     | ||
[INFO] [stdout] 421 | ||                 Some(n) => {
[INFO] [stdout] 422 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stdout] 423 | ||                 },
[INFO] [stdout] ...   ||
[INFO] [stdout] 426 | ||                 }
[INFO] [stdout] 427 | ||             };
[INFO] [stdout]     | ||             ^
[INFO] [stdout]     | ||_____________|
[INFO] [stdout]     | |______________unreachable expression
[INFO] [stdout]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:463:25
[INFO] [stdout]     |
[INFO] [stdout] 463 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 464 | ||                             Some(n) => {
[INFO] [stdout] 465 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stdout] 466 | ||                             },
[INFO] [stdout] ...   ||
[INFO] [stdout] 469 | ||                             }
[INFO] [stdout] 470 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:477:13
[INFO] [stdout]     |
[INFO] [stdout] 477 |                return match self.children[next_cluster].search(offset) {
[INFO] [stdout]     |  ______________^______-
[INFO] [stdout]     | | _____________|
[INFO] [stdout]     | ||
[INFO] [stdout] 478 | ||                 Some(n) => {
[INFO] [stdout] 479 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stdout] 480 | ||                 },
[INFO] [stdout] ...   ||
[INFO] [stdout] 483 | ||                 }
[INFO] [stdout] 484 | ||             };
[INFO] [stdout]     | ||             ^
[INFO] [stdout]     | ||_____________|
[INFO] [stdout]     | |______________unreachable expression
[INFO] [stdout]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             for index in 0..self_size {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_value`
[INFO] [stdout]    --> src/lib.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 Some(min_value) => (),
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_val`
[INFO] [stdout]    --> src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |             let min_val = self.min?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let mut aux = Self::new(pass_size);
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut tree = VEBTree {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.23s
[INFO] running `Command { std: "docker" "inspect" "561584bcc92d39717aa21418d535140a5ad5d63f685658edf0662bc689105ac3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561584bcc92d39717aa21418d535140a5ad5d63f685658edf0662bc689105ac3", kill_on_drop: false }`
[INFO] [stdout] 561584bcc92d39717aa21418d535140a5ad5d63f685658edf0662bc689105ac3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2439262106364809df16f55344edd1a891bd839951e9beb3a23d7f9e71003aa
[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" "b2439262106364809df16f55344edd1a891bd839951e9beb3a23d7f9e71003aa", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr]    Compiling vebtrees v0.1.4 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:285:61
[INFO] [stdout]     |
[INFO] [stdout] 285 |   ...                   self.min = Some((first_cluster
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 286 | | ...                                   * self.children.len() as T
[INFO] [stdout] 287 | | ...                                    + min));
[INFO] [stdout]     | |_____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 285 |                                             self.min = Some(first_cluster
[INFO] [stdout] 286 |                                                             * self.children.len() as T
[INFO] [stdout] 287 |                                                              + min);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:312:61
[INFO] [stdout]     |
[INFO] [stdout] 312 |   ...                   self.max = Some((last_cluster
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 313 | | ...                                    * self.children.len() as T
[INFO] [stdout] 314 | | ...                                    + max));
[INFO] [stdout]     | |_____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 |                                             self.max = Some(last_cluster
[INFO] [stdout] 313 |                                                              * self.children.len() as T
[INFO] [stdout] 314 |                                                              + max);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:406:25
[INFO] [stdout]     |
[INFO] [stdout] 406 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 407 | ||                             Some(n) => {
[INFO] [stdout] 408 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stdout] 409 | ||                             },
[INFO] [stdout] ...   ||
[INFO] [stdout] 412 | ||                             }
[INFO] [stdout] 413 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |                return match self.children[next_cluster].search(offset) {
[INFO] [stdout]     |  ______________^______-
[INFO] [stdout]     | | _____________|
[INFO] [stdout]     | ||
[INFO] [stdout] 421 | ||                 Some(n) => {
[INFO] [stdout] 422 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stdout] 423 | ||                 },
[INFO] [stdout] ...   ||
[INFO] [stdout] 426 | ||                 }
[INFO] [stdout] 427 | ||             };
[INFO] [stdout]     | ||             ^
[INFO] [stdout]     | ||_____________|
[INFO] [stdout]     | |______________unreachable expression
[INFO] [stdout]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:463:25
[INFO] [stdout]     |
[INFO] [stdout] 463 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 464 | ||                             Some(n) => {
[INFO] [stdout] 465 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stdout] 466 | ||                             },
[INFO] [stdout] ...   ||
[INFO] [stdout] 469 | ||                             }
[INFO] [stdout] 470 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:477:13
[INFO] [stdout]     |
[INFO] [stdout] 477 |                return match self.children[next_cluster].search(offset) {
[INFO] [stdout]     |  ______________^______-
[INFO] [stdout]     | | _____________|
[INFO] [stdout]     | ||
[INFO] [stdout] 478 | ||                 Some(n) => {
[INFO] [stdout] 479 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stdout] 480 | ||                 },
[INFO] [stdout] ...   ||
[INFO] [stdout] 483 | ||                 }
[INFO] [stdout] 484 | ||             };
[INFO] [stdout]     | ||             ^
[INFO] [stdout]     | ||_____________|
[INFO] [stdout]     | |______________unreachable expression
[INFO] [stdout]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             for index in 0..self_size {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_value`
[INFO] [stdout]    --> src/lib.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 Some(min_value) => (),
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_val`
[INFO] [stdout]    --> src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |             let min_val = self.min?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let mut aux = Self::new(pass_size);
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut tree = VEBTree {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Duration`, `Instant`
[INFO] [stdout]  --> src/tests.rs:3:17
[INFO] [stdout]   |
[INFO] [stdout] 3 | use std::time::{Instant, Duration};
[INFO] [stdout]   |                 ^^^^^^^  ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]  --> src/test_asymptotes.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     for i in (0..num_runs) {
[INFO] [stdout]   |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/test_asymptotes.rs:39:14
[INFO] [stdout]    |
[INFO] [stdout] 39 |     for i in (0..num_runs) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]   --> src/test_asymptotes.rs:74:14
[INFO] [stdout]    |
[INFO] [stdout] 74 |     for i in (0..num_runs) {
[INFO] [stdout]    |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stdout]    --> src/test_asymptotes.rs:108:14
[INFO] [stdout]     |
[INFO] [stdout] 108 |     for i in (0..num_runs) {
[INFO] [stdout]     |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:285:61
[INFO] [stdout]     |
[INFO] [stdout] 285 |   ...                   self.min = Some((first_cluster
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 286 | | ...                                   * self.children.len() as T
[INFO] [stdout] 287 | | ...                                    + min));
[INFO] [stdout]     | |_____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 285 |                                             self.min = Some(first_cluster
[INFO] [stdout] 286 |                                                             * self.children.len() as T
[INFO] [stdout] 287 |                                                              + min);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around function argument
[INFO] [stdout]    --> src/lib.rs:312:61
[INFO] [stdout]     |
[INFO] [stdout] 312 |   ...                   self.max = Some((last_cluster
[INFO] [stdout]     |  _______________________________________^
[INFO] [stdout] 313 | | ...                                    * self.children.len() as T
[INFO] [stdout] 314 | | ...                                    + max));
[INFO] [stdout]     | |_____________________________________________^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 312 |                                             self.max = Some(last_cluster
[INFO] [stdout] 313 |                                                              * self.children.len() as T
[INFO] [stdout] 314 |                                                              + max);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:406:25
[INFO] [stdout]     |
[INFO] [stdout] 406 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 407 | ||                             Some(n) => {
[INFO] [stdout] 408 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stdout] 409 | ||                             },
[INFO] [stdout] ...   ||
[INFO] [stdout] 412 | ||                             }
[INFO] [stdout] 413 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:420:13
[INFO] [stdout]     |
[INFO] [stdout] 420 |                return match self.children[next_cluster].search(offset) {
[INFO] [stdout]     |  ______________^______-
[INFO] [stdout]     | | _____________|
[INFO] [stdout]     | ||
[INFO] [stdout] 421 | ||                 Some(n) => {
[INFO] [stdout] 422 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stdout] 423 | ||                 },
[INFO] [stdout] ...   ||
[INFO] [stdout] 426 | ||                 }
[INFO] [stdout] 427 | ||             };
[INFO] [stdout]     | ||             ^
[INFO] [stdout]     | ||_____________|
[INFO] [stdout]     | |______________unreachable expression
[INFO] [stdout]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:463:25
[INFO] [stdout]     |
[INFO] [stdout] 463 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stdout]     |  __________________________^______-
[INFO] [stdout]     | | _________________________|
[INFO] [stdout]     | ||
[INFO] [stdout] 464 | ||                             Some(n) => {
[INFO] [stdout] 465 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stdout] 466 | ||                             },
[INFO] [stdout] ...   ||
[INFO] [stdout] 469 | ||                             }
[INFO] [stdout] 470 | ||                         };
[INFO] [stdout]     | ||                         ^
[INFO] [stdout]     | ||_________________________|
[INFO] [stdout]     | |__________________________unreachable expression
[INFO] [stdout]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unreachable expression
[INFO] [stdout]    --> src/lib.rs:477:13
[INFO] [stdout]     |
[INFO] [stdout] 477 |                return match self.children[next_cluster].search(offset) {
[INFO] [stdout]     |  ______________^______-
[INFO] [stdout]     | | _____________|
[INFO] [stdout]     | ||
[INFO] [stdout] 478 | ||                 Some(n) => {
[INFO] [stdout] 479 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stdout] 480 | ||                 },
[INFO] [stdout] ...   ||
[INFO] [stdout] 483 | ||                 }
[INFO] [stdout] 484 | ||             };
[INFO] [stdout]     | ||             ^
[INFO] [stdout]     | ||_____________|
[INFO] [stdout]     | |______________unreachable expression
[INFO] [stdout]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]   --> src/lib.rs:59:17
[INFO] [stdout]    |
[INFO] [stdout] 59 |             for index in 0..self_size {
[INFO] [stdout]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_value`
[INFO] [stdout]    --> src/lib.rs:179:22
[INFO] [stdout]     |
[INFO] [stdout] 179 |                 Some(min_value) => (),
[INFO] [stdout]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_value`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `min_val`
[INFO] [stdout]    --> src/lib.rs:384:17
[INFO] [stdout]     |
[INFO] [stdout] 384 |             let min_val = self.min?;
[INFO] [stdout]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_val`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:62:17
[INFO] [stdout]    |
[INFO] [stdout] 62 |             let mut aux = Self::new(pass_size);
[INFO] [stdout]    |                 ----^^^
[INFO] [stdout]    |                 |
[INFO] [stdout]    |                 help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/lib.rs:65:13
[INFO] [stdout]    |
[INFO] [stdout] 65 |         let mut tree = VEBTree {
[INFO] [stdout]    |             ----^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let mut reference_tree = VEBTree::new(16);
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/tests.rs:55:13
[INFO] [stdout]    |
[INFO] [stdout] 55 |         let mut reference_tree = VEBTree::new(i);
[INFO] [stdout]    |             ----^^^^^^^^^^^^^^
[INFO] [stdout]    |             |
[INFO] [stdout]    |             help: remove this `mut`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 18 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 1.46s
[INFO] running `Command { std: "docker" "inspect" "b2439262106364809df16f55344edd1a891bd839951e9beb3a23d7f9e71003aa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2439262106364809df16f55344edd1a891bd839951e9beb3a23d7f9e71003aa", kill_on_drop: false }`
[INFO] [stdout] b2439262106364809df16f55344edd1a891bd839951e9beb3a23d7f9e71003aa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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=warn" "-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:d92eaeed33fa75130ca1ee6c8a01d1ffb62bac859dfdfb3450e3e5d1c0146529" "/opt/rustwide/cargo-home/bin/cargo" "+1.47.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 18dfebf7ba2e6e034656d24ddcb10a6d6512bc6a4b8c52373de5c3e648f2232b
[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" "18dfebf7ba2e6e034656d24ddcb10a6d6512bc6a4b8c52373de5c3e648f2232b", kill_on_drop: false }`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:285:61
[INFO] [stderr]     |
[INFO] [stderr] 285 |   ...                   self.min = Some((first_cluster
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 286 | | ...                                   * self.children.len() as T
[INFO] [stderr] 287 | | ...                                    + min));
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 285 |                                             self.min = Some(first_cluster
[INFO] [stderr] 286 |                                                             * self.children.len() as T
[INFO] [stderr] 287 |                                                              + min);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:312:61
[INFO] [stderr]     |
[INFO] [stderr] 312 |   ...                   self.max = Some((last_cluster
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 313 | | ...                                    * self.children.len() as T
[INFO] [stderr] 314 | | ...                                    + max));
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 312 |                                             self.max = Some(last_cluster
[INFO] [stderr] 313 |                                                              * self.children.len() as T
[INFO] [stderr] 314 |                                                              + max);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:406:25
[INFO] [stderr]     |
[INFO] [stderr] 406 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stderr]     |  __________________________^______-
[INFO] [stderr]     | | _________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 407 | ||                             Some(n) => {
[INFO] [stderr] 408 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stderr] 409 | ||                             },
[INFO] [stderr] ...   ||
[INFO] [stderr] 412 | ||                             }
[INFO] [stderr] 413 | ||                         };
[INFO] [stderr]     | ||                         ^
[INFO] [stderr]     | ||_________________________|
[INFO] [stderr]     | |__________________________unreachable expression
[INFO] [stderr]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:420:13
[INFO] [stderr]     |
[INFO] [stderr] 420 |                return match self.children[next_cluster].search(offset) {
[INFO] [stderr]     |  ______________^______-
[INFO] [stderr]     | | _____________|
[INFO] [stderr]     | ||
[INFO] [stderr] 421 | ||                 Some(n) => {
[INFO] [stderr] 422 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stderr] 423 | ||                 },
[INFO] [stderr] ...   ||
[INFO] [stderr] 426 | ||                 }
[INFO] [stderr] 427 | ||             };
[INFO] [stderr]     | ||             ^
[INFO] [stderr]     | ||_____________|
[INFO] [stderr]     | |______________unreachable expression
[INFO] [stderr]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:463:25
[INFO] [stderr]     |
[INFO] [stderr] 463 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stderr]     |  __________________________^______-
[INFO] [stderr]     | | _________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 464 | ||                             Some(n) => {
[INFO] [stderr] 465 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stderr] 466 | ||                             },
[INFO] [stderr] ...   ||
[INFO] [stderr] 469 | ||                             }
[INFO] [stderr] 470 | ||                         };
[INFO] [stderr]     | ||                         ^
[INFO] [stderr]     | ||_________________________|
[INFO] [stderr]     | |__________________________unreachable expression
[INFO] [stderr]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:477:13
[INFO] [stderr]     |
[INFO] [stderr] 477 |                return match self.children[next_cluster].search(offset) {
[INFO] [stderr]     |  ______________^______-
[INFO] [stderr]     | | _____________|
[INFO] [stderr]     | ||
[INFO] [stderr] 478 | ||                 Some(n) => {
[INFO] [stderr] 479 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stderr] 480 | ||                 },
[INFO] [stderr] ...   ||
[INFO] [stderr] 483 | ||                 }
[INFO] [stderr] 484 | ||             };
[INFO] [stderr]     | ||             ^
[INFO] [stderr]     | ||_____________|
[INFO] [stderr]     | |______________unreachable expression
[INFO] [stderr]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/lib.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             for index in 0..self_size {
[INFO] [stderr]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `min_value`
[INFO] [stderr]    --> src/lib.rs:179:22
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 Some(min_value) => (),
[INFO] [stderr]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `min_val`
[INFO] [stderr]    --> src/lib.rs:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 |             let min_val = self.min?;
[INFO] [stderr]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_val`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let mut aux = Self::new(pass_size);
[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/lib.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut tree = VEBTree {
[INFO] [stderr]    |             ----^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 11 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `Duration`, `Instant`
[INFO] [stderr]  --> src/tests.rs:3:17
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::time::{Instant, Duration};
[INFO] [stderr]   |                 ^^^^^^^  ^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]  --> src/test_asymptotes.rs:9:14
[INFO] [stderr]   |
[INFO] [stderr] 9 |     for i in (0..num_runs) {
[INFO] [stderr]   |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_parens)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/test_asymptotes.rs:39:14
[INFO] [stderr]    |
[INFO] [stderr] 39 |     for i in (0..num_runs) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]   --> src/test_asymptotes.rs:74:14
[INFO] [stderr]    |
[INFO] [stderr] 74 |     for i in (0..num_runs) {
[INFO] [stderr]    |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `for` iterator expression
[INFO] [stderr]    --> src/test_asymptotes.rs:108:14
[INFO] [stderr]     |
[INFO] [stderr] 108 |     for i in (0..num_runs) {
[INFO] [stderr]     |              ^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:285:61
[INFO] [stderr]     |
[INFO] [stderr] 285 |   ...                   self.min = Some((first_cluster
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 286 | | ...                                   * self.children.len() as T
[INFO] [stderr] 287 | | ...                                    + min));
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 285 |                                             self.min = Some(first_cluster
[INFO] [stderr] 286 |                                                             * self.children.len() as T
[INFO] [stderr] 287 |                                                              + min);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around function argument
[INFO] [stderr]    --> src/lib.rs:312:61
[INFO] [stderr]     |
[INFO] [stderr] 312 |   ...                   self.max = Some((last_cluster
[INFO] [stderr]     |  _______________________________________^
[INFO] [stderr] 313 | | ...                                    * self.children.len() as T
[INFO] [stderr] 314 | | ...                                    + max));
[INFO] [stderr]     | |_____________________________________________^
[INFO] [stderr]     |
[INFO] [stderr] help: remove these parentheses
[INFO] [stderr]     |
[INFO] [stderr] 312 |                                             self.max = Some(last_cluster
[INFO] [stderr] 313 |                                                              * self.children.len() as T
[INFO] [stderr] 314 |                                                              + max);
[INFO] [stderr]     |
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:406:25
[INFO] [stderr]     |
[INFO] [stderr] 406 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stderr]     |  __________________________^______-
[INFO] [stderr]     | | _________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 407 | ||                             Some(n) => {
[INFO] [stderr] 408 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stderr] 409 | ||                             },
[INFO] [stderr] ...   ||
[INFO] [stderr] 412 | ||                             }
[INFO] [stderr] 413 | ||                         };
[INFO] [stderr]     | ||                         ^
[INFO] [stderr]     | ||_________________________|
[INFO] [stderr]     | |__________________________unreachable expression
[INFO] [stderr]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:420:13
[INFO] [stderr]     |
[INFO] [stderr] 420 |                return match self.children[next_cluster].search(offset) {
[INFO] [stderr]     |  ______________^______-
[INFO] [stderr]     | | _____________|
[INFO] [stderr]     | ||
[INFO] [stderr] 421 | ||                 Some(n) => {
[INFO] [stderr] 422 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stderr] 423 | ||                 },
[INFO] [stderr] ...   ||
[INFO] [stderr] 426 | ||                 }
[INFO] [stderr] 427 | ||             };
[INFO] [stderr]     | ||             ^
[INFO] [stderr]     | ||_____________|
[INFO] [stderr]     | |______________unreachable expression
[INFO] [stderr]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:463:25
[INFO] [stderr]     |
[INFO] [stderr] 463 |                            return match self.children[self.high(value)].search(offset) {
[INFO] [stderr]     |  __________________________^______-
[INFO] [stderr]     | | _________________________|
[INFO] [stderr]     | ||
[INFO] [stderr] 464 | ||                             Some(n) => {
[INFO] [stderr] 465 | ||                                 return Some(n + self.high(value)*self.children.len());
[INFO] [stderr] 466 | ||                             },
[INFO] [stderr] ...   ||
[INFO] [stderr] 469 | ||                             }
[INFO] [stderr] 470 | ||                         };
[INFO] [stderr]     | ||                         ^
[INFO] [stderr]     | ||_________________________|
[INFO] [stderr]     | |__________________________unreachable expression
[INFO] [stderr]     |                            any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable expression
[INFO] [stderr]    --> src/lib.rs:477:13
[INFO] [stderr]     |
[INFO] [stderr] 477 |                return match self.children[next_cluster].search(offset) {
[INFO] [stderr]     |  ______________^______-
[INFO] [stderr]     | | _____________|
[INFO] [stderr]     | ||
[INFO] [stderr] 478 | ||                 Some(n) => {
[INFO] [stderr] 479 | ||                     return Some(n + next_cluster*self.children.len());
[INFO] [stderr] 480 | ||                 },
[INFO] [stderr] ...   ||
[INFO] [stderr] 483 | ||                 }
[INFO] [stderr] 484 | ||             };
[INFO] [stderr]     | ||             ^
[INFO] [stderr]     | ||_____________|
[INFO] [stderr]     | |______________unreachable expression
[INFO] [stderr]     |                any code following this `match` expression is unreachable, as all arms diverge
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]   --> src/lib.rs:59:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |             for index in 0..self_size {
[INFO] [stderr]    |                 ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `min_value`
[INFO] [stderr]    --> src/lib.rs:179:22
[INFO] [stderr]     |
[INFO] [stderr] 179 |                 Some(min_value) => (),
[INFO] [stderr]     |                      ^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_value`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `min_val`
[INFO] [stderr]    --> src/lib.rs:384:17
[INFO] [stderr]     |
[INFO] [stderr] 384 |             let min_val = self.min?;
[INFO] [stderr]     |                 ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_min_val`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/lib.rs:62:17
[INFO] [stderr]    |
[INFO] [stderr] 62 |             let mut aux = Self::new(pass_size);
[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/lib.rs:65:13
[INFO] [stderr]    |
[INFO] [stderr] 65 |         let mut tree = VEBTree {
[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/tests.rs:40:9
[INFO] [stderr]    |
[INFO] [stderr] 40 |     let mut reference_tree = VEBTree::new(16);
[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/tests.rs:55:13
[INFO] [stderr]    |
[INFO] [stderr] 55 |         let mut reference_tree = VEBTree::new(i);
[INFO] [stderr]    |             ----^^^^^^^^^^^^^^
[INFO] [stderr]    |             |
[INFO] [stderr]    |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 18 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vebtrees-0cd2c29c8d3a6b03
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_findnext_correctness ... ok
[INFO] [stdout] test tests::test_findprev_correctness ... ok
[INFO] [stdout] test tests::test_maximum_correctness ... ok
[INFO] [stdout] test tests::test_minimum_correctness ... ok
[INFO] [stdout] test tests::test_contains_correctness ... ok
[INFO] [stdout] test tests::test_insert_and_delete_correctness ... ok
[INFO] [stdout] test tests::test_search_correctness ... ok
[INFO] [stdout] test tests::test_insert_and_delete_correctness_odd ... ok
[INFO] [stdout] test test_asymptotes::test_findnext_asymptote ... ok
[INFO] [stdout] test test_asymptotes::test_findprev_asymptote ... FAILED
[INFO] [stdout] test test_asymptotes::test_insert_asymptote ... ok
[INFO] [stdout] test test_asymptotes::test_delete_asymptote ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_asymptotes::test_findprev_asymptote stdout ----
[INFO] [stdout] sum_x: 125250000.0, sum_y=NaN, sum_xy=NaN, sum_x_2=41791750000000.0, sum_y_2=NaN
[INFO] [stdout] Numerator: NaN, Denominator: NaN
[INFO] [stdout] corr: NaN
[INFO] [stdout] thread 'test_asymptotes::test_findprev_asymptote' panicked at 'assertion failed: corr > 0.70', src/test_asymptotes.rs:134:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x5627601b13a0 - std::backtrace_rs::backtrace::libunwind::trace::h577ea05e9ca4629a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/libunwind.rs:96
[INFO] [stdout]    1:     0x5627601b13a0 - std::backtrace_rs::backtrace::trace_unsynchronized::h50b9b72b84c7dd56
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/../../backtrace/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x5627601b13a0 - std::sys_common::backtrace::_print_fmt::h6541cf9823837fac
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:79
[INFO] [stdout]    3:     0x5627601b13a0 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::hf64fbff071026df5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:58
[INFO] [stdout]    4:     0x5627601d415c - core::fmt::write::h9ddafa4860d8adff
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/fmt/mod.rs:1082
[INFO] [stdout]    5:     0x56276015a525 - std::io::Write::write_fmt::h50a71e2460ce07da
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/mod.rs:1514
[INFO] [stdout]    6:     0x5627601ac111 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h9bbd3fed8160d0d2
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/io/impls.rs:176
[INFO] [stdout]    7:     0x5627601b3820 - std::sys_common::backtrace::_print::ha25f9ff5080d886d
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:61
[INFO] [stdout]    8:     0x5627601b3820 - std::sys_common::backtrace::print::h213e8aa8dc5405c0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:48
[INFO] [stdout]    9:     0x5627601b3820 - std::panicking::default_hook::{{closure}}::h6482fae49ef9d963
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:200
[INFO] [stdout]   10:     0x5627601b3516 - std::panicking::default_hook::he30ad7589e0970f9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:216
[INFO] [stdout]   11:     0x5627601b3e83 - std::panicking::rust_panic_with_hook::haa1ed36ada4ffb03
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:569
[INFO] [stdout]   12:     0x562760158d48 - std::panicking::begin_panic::{{closure}}::h69401952ae9771d8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:498
[INFO] [stdout]   13:     0x56276014e5d8 - std::sys_common::backtrace::__rust_end_short_backtrace::hb9367d6fadce3bc2
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:153
[INFO] [stdout]   14:     0x562760158c73 - std::panicking::begin_panic::h956504eb317af5e5
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:497
[INFO] [stdout]   15:     0x56276014983a - vebtrees::test_asymptotes::test_findprev_asymptote::h3a375fba385eb4ce
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test_asymptotes.rs:134
[INFO] [stdout]   16:     0x562760148f1a - vebtrees::test_asymptotes::test_findprev_asymptote::{{closure}}::he2d0683f8063bc61
[INFO] [stdout]                                at /opt/rustwide/workdir/src/test_asymptotes.rs:105
[INFO] [stdout]   17:     0x56276014d60e - core::ops::function::FnOnce::call_once::hf88d4de726687bb0
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   18:     0x562760182e03 - core::ops::function::FnOnce::call_once::hd04d57b5cf16f85a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   19:     0x562760182e03 - test::__rust_begin_short_backtrace::hd8e9a8c5a2e43388
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:517
[INFO] [stdout]   20:     0x5627601812d3 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h3c3db8a500c1a19a
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   21:     0x5627601812d3 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h043e9ebcbe360c80
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   22:     0x5627601812d3 - std::panicking::try::do_call::h47c2fb275506c2e8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   23:     0x5627601812d3 - std::panicking::try::h569c20f0e99453b4
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   24:     0x5627601812d3 - std::panic::catch_unwind::hb33c6d0f01540d23
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   25:     0x5627601812d3 - test::run_test_in_process::hc0ce562d167e51cf
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:544
[INFO] [stdout]   26:     0x5627601812d3 - test::run_test::run_test_inner::{{closure}}::hd3120982fcd71544
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/test/src/lib.rs:450
[INFO] [stdout]   27:     0x562760159956 - std::sys_common::backtrace::__rust_begin_short_backtrace::h84f8bc12cc4cdac6
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys_common/backtrace.rs:137
[INFO] [stdout]   28:     0x56276015eb85 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::hb8b5fa0ba425d4db
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:458
[INFO] [stdout]   29:     0x56276015eb85 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hc4b84b244cf55f75
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:308
[INFO] [stdout]   30:     0x56276015eb85 - std::panicking::try::do_call::ha31922ad8fa17753
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:373
[INFO] [stdout]   31:     0x56276015eb85 - std::panicking::try::h38a6da203722ae6e
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panicking.rs:337
[INFO] [stdout]   32:     0x56276015eb85 - std::panic::catch_unwind::h83afce167c9062b9
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/panic.rs:379
[INFO] [stdout]   33:     0x56276015eb85 - std::thread::Builder::spawn_unchecked::{{closure}}::h160689155590a70c
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/thread/mod.rs:457
[INFO] [stdout]   34:     0x56276015eb85 - core::ops::function::FnOnce::call_once{{vtable.shim}}::h7dbf17a455132a46
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/core/src/ops/function.rs:227
[INFO] [stdout]   35:     0x5627601ba63a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h670c50864ac2cb92
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   36:     0x5627601ba63a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h2511952749086d81
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/alloc/src/boxed.rs:1042
[INFO] [stdout]   37:     0x5627601ba63a - std::sys::unix::thread::Thread::new::thread_start::h5ad4ddffe24373a8
[INFO] [stdout]                                at /rustc/18bf6b4f01a6feaf7259ba7cdae58031af1b7b39/library/std/src/sys/unix/thread.rs:87
[INFO] [stdout]   38:     0x7f4caef2e609 - start_thread
[INFO] [stdout]   39:     0x7f4caee3a103 - clone
[INFO] [stdout]   40:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_asymptotes::test_findprev_asymptote
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 11 passed; 1 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr] error: test failed, to rerun pass '--lib'
[INFO] running `Command { std: "docker" "inspect" "18dfebf7ba2e6e034656d24ddcb10a6d6512bc6a4b8c52373de5c3e648f2232b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18dfebf7ba2e6e034656d24ddcb10a6d6512bc6a4b8c52373de5c3e648f2232b", kill_on_drop: false }`
[INFO] [stdout] 18dfebf7ba2e6e034656d24ddcb10a6d6512bc6a4b8c52373de5c3e648f2232b
