[INFO] updating cached repository https://github.com/JMurph2015/rust-vebtrees
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0120b1332b903167260df47a8b43430faca81f9c
[INFO] testing JMurph2015/rust-vebtrees against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJMurph2015%2Frust-vebtrees" "/workspace/builds/worker-11/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/JMurph2015/rust-vebtrees on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[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-11/source/Cargo.toml
[INFO] crate git repo https://github.com/JMurph2015/rust-vebtrees already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr] error: the lock file /workspace/builds/worker-11/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[INFO] the lockfile is outdated, regenerating it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 `"/workspace/cargo-home/bin/cargo" "+1.44.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 4cb0ab0b83556a7cc72110c05cf1c9dbdc2f8c7ec8216ee2fe2e872c01006b76
[INFO] running `"docker" "start" "-a" "4cb0ab0b83556a7cc72110c05cf1c9dbdc2f8c7ec8216ee2fe2e872c01006b76"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr]    Compiling vebtrees v0.1.4 (/opt/rustwide/workdir)
[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]     Finished dev [unoptimized + debuginfo] target(s) in 0.80s
[INFO] running `"docker" "inspect" "4cb0ab0b83556a7cc72110c05cf1c9dbdc2f8c7ec8216ee2fe2e872c01006b76"`
[INFO] running `"docker" "rm" "-f" "4cb0ab0b83556a7cc72110c05cf1c9dbdc2f8c7ec8216ee2fe2e872c01006b76"`
[INFO] [stdout] 4cb0ab0b83556a7cc72110c05cf1c9dbdc2f8c7ec8216ee2fe2e872c01006b76
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stdout] ab083cc8254907da84aa92c68c8b28c16b4981dd07f0cb05b989771a6a7b547c
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "ab083cc8254907da84aa92c68c8b28c16b4981dd07f0cb05b989771a6a7b547c"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: unused manifest key: package.travis-ci
[INFO] [stderr]    Compiling vebtrees v0.1.4 (/opt/rustwide/workdir)
[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 1.55s
[INFO] running `"docker" "inspect" "ab083cc8254907da84aa92c68c8b28c16b4981dd07f0cb05b989771a6a7b547c"`
[INFO] running `"docker" "rm" "-f" "ab083cc8254907da84aa92c68c8b28c16b4981dd07f0cb05b989771a6a7b547c"`
[INFO] [stdout] ab083cc8254907da84aa92c68c8b28c16b4981dd07f0cb05b989771a6a7b547c
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stdout] 7c2a0297b4bcbf4c3f289696ee8cc4a27f4db41e612a1e326fcf19d2f35c7c42
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "7c2a0297b4bcbf4c3f289696ee8cc4a27f4db41e612a1e326fcf19d2f35c7c42"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[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 0.02s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/vebtrees-af3560b21827bc10
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test tests::test_findprev_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_maximum_correctness ... ok
[INFO] [stdout] test tests::test_search_correctness ... ok
[INFO] [stdout] test tests::test_minimum_correctness ... ok
[INFO] [stdout] test tests::test_findnext_correctness ... ok
[INFO] [stdout] test tests::test_insert_and_delete_correctness_odd ... ok
[INFO] [stdout] test test_asymptotes::test_insert_asymptote ... ok
[INFO] [stdout] test test_asymptotes::test_findnext_asymptote ... FAILED
[INFO] [stdout] test test_asymptotes::test_findprev_asymptote ... ok
[INFO] [stdout] test test_asymptotes::test_delete_asymptote ... ok
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- test_asymptotes::test_findnext_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_findnext_asymptote' panicked at 'assertion failed: corr > 0.70', src/test_asymptotes.rs:100:5
[INFO] [stdout] stack backtrace:
[INFO] [stdout]    0:     0x56429375ae04 - backtrace::backtrace::libunwind::trace::hc1c4a1d8ad423b97
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/libunwind.rs:86
[INFO] [stdout]    1:     0x56429375ae04 - backtrace::backtrace::trace_unsynchronized::h82274781060cb056
[INFO] [stdout]                                at /cargo/registry/src/github.com-1ecc6299db9ec823/backtrace-0.3.46/src/backtrace/mod.rs:66
[INFO] [stdout]    2:     0x56429375ae04 - std::sys_common::backtrace::_print_fmt::h2a45d89b653a4da8
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:78
[INFO] [stdout]    3:     0x56429375ae04 - <std::sys_common::backtrace::_print::DisplayBacktrace as core::fmt::Display>::fmt::h41a0a93ab85e6aa1
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:59
[INFO] [stdout]    4:     0x564293783a4c - core::fmt::write::hdaea18585065a96d
[INFO] [stdout]                                at src/libcore/fmt/mod.rs:1069
[INFO] [stdout]    5:     0x56429370eae5 - std::io::Write::write_fmt::h42f0550b6bd39c6e
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/io/mod.rs:1504
[INFO] [stdout]    6:     0x5642937553f1 - std::io::impls::<impl std::io::Write for alloc::boxed::Box<W>>::write_fmt::h223d7b7033cad46d
[INFO] [stdout]                                at src/libstd/io/impls.rs:156
[INFO] [stdout]    7:     0x56429375d6d5 - std::sys_common::backtrace::_print::hd95f9978cc145ca4
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:62
[INFO] [stdout]    8:     0x56429375d6d5 - std::sys_common::backtrace::print::hfb25ca2291be47d0
[INFO] [stdout]                                at src/libstd/sys_common/backtrace.rs:49
[INFO] [stdout]    9:     0x56429375d6d5 - std::panicking::default_hook::{{closure}}::h44f76cee5dc8591c
[INFO] [stdout]                                at src/libstd/panicking.rs:198
[INFO] [stdout]   10:     0x56429375d3bb - std::panicking::default_hook::h198e1a712910f1e6
[INFO] [stdout]                                at src/libstd/panicking.rs:215
[INFO] [stdout]   11:     0x56429375dd32 - std::panicking::rust_panic_with_hook::hc0b4730bb8013f9d
[INFO] [stdout]                                at src/libstd/panicking.rs:511
[INFO] [stdout]   12:     0x5642937008ad - std::panicking::begin_panic::hafe2df98a40b68c3
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:438
[INFO] [stdout]   13:     0x5642936faf2a - vebtrees::test_asymptotes::test_findnext_asymptote::hcb3ef02830146e8d
[INFO] [stdout]                                at src/test_asymptotes.rs:100
[INFO] [stdout]   14:     0x5642936fa60a - vebtrees::test_asymptotes::test_findnext_asymptote::{{closure}}::hacaa26d103ec1830
[INFO] [stdout]                                at src/test_asymptotes.rs:71
[INFO] [stdout]   15:     0x56429370098e - core::ops::function::FnOnce::call_once::h090e1809c5f93184
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232
[INFO] [stdout]   16:     0x564293735f76 - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::hc165f65f4331a55c
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   17:     0x564293735f76 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::hb89f1f769cad07ce
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318
[INFO] [stdout]   18:     0x564293735f76 - std::panicking::try::do_call::h104f7f3dae5a1b29
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331
[INFO] [stdout]   19:     0x564293735f76 - std::panicking::try::h0e20f01361cba753
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274
[INFO] [stdout]   20:     0x564293735f76 - std::panic::catch_unwind::h0bd0c84b5f4cd121
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394
[INFO] [stdout]   21:     0x564293735f76 - test::run_test_in_process::hf34c22adfeb6853d
[INFO] [stdout]                                at src/libtest/lib.rs:541
[INFO] [stdout]   22:     0x564293735f76 - test::run_test::run_test_inner::{{closure}}::h40d568b4c10a12f1
[INFO] [stdout]                                at src/libtest/lib.rs:450
[INFO] [stdout]   23:     0x56429370df96 - std::sys_common::backtrace::__rust_begin_short_backtrace::hffd9774ad3f2d778
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/sys_common/backtrace.rs:130
[INFO] [stdout]   24:     0x564293713325 - std::thread::Builder::spawn_unchecked::{{closure}}::{{closure}}::h4594020476cf52d4
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:475
[INFO] [stdout]   25:     0x564293713325 - <std::panic::AssertUnwindSafe<F> as core::ops::function::FnOnce<()>>::call_once::h9d0a6d45b73e29e4
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:318
[INFO] [stdout]   26:     0x564293713325 - std::panicking::try::do_call::h902fd77b30bb3bb7
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:331
[INFO] [stdout]   27:     0x564293713325 - std::panicking::try::hc17d3a628e65d49d
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panicking.rs:274
[INFO] [stdout]   28:     0x564293713325 - std::panic::catch_unwind::h9c9d49cbb6b18017
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/panic.rs:394
[INFO] [stdout]   29:     0x564293713325 - std::thread::Builder::spawn_unchecked::{{closure}}::h6a6f5a333fd631a2
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libstd/thread/mod.rs:474
[INFO] [stdout]   30:     0x564293713325 - core::ops::function::FnOnce::call_once{{vtable.shim}}::ha6fb197e0ce57f73
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/libcore/ops/function.rs:232
[INFO] [stdout]   31:     0x56429376451a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::h1f1fac7de7dd9691
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   32:     0x56429376451a - <alloc::boxed::Box<F> as core::ops::function::FnOnce<A>>::call_once::ha031f48633a6af54
[INFO] [stdout]                                at /rustc/49cae55760da0a43428eba73abcb659bb70cf2e4/src/liballoc/boxed.rs:1008
[INFO] [stdout]   33:     0x56429376451a - std::sys::unix::thread::Thread::new::thread_start::h241864caf436e182
[INFO] [stdout]                                at src/libstd/sys/unix/thread.rs:87
[INFO] [stdout]   34:     0x7f64f12c5609 - start_thread
[INFO] [stdout]   35:     0x7f64f11d1103 - __clone
[INFO] [stdout]   36:                0x0 - <unknown>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     test_asymptotes::test_findnext_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 `"docker" "inspect" "7c2a0297b4bcbf4c3f289696ee8cc4a27f4db41e612a1e326fcf19d2f35c7c42"`
[INFO] running `"docker" "rm" "-f" "7c2a0297b4bcbf4c3f289696ee8cc4a27f4db41e612a1e326fcf19d2f35c7c42"`
[INFO] [stdout] 7c2a0297b4bcbf4c3f289696ee8cc4a27f4db41e612a1e326fcf19d2f35c7c42