[INFO] cloning repository https://github.com/JaredArrowood/Homework-4
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/JaredArrowood/Homework-4" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaredArrowood%2FHomework-4", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaredArrowood%2FHomework-4'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ac8ec323fb8e5e57aa94ec3ff0dcaeebe18bc955
[INFO] checking JaredArrowood/Homework-4 against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaredArrowood%2FHomework-4" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JaredArrowood/Homework-4
[INFO] finished tweaking git repo https://github.com/JaredArrowood/Homework-4
[INFO] tweaked toml for git repo https://github.com/JaredArrowood/Homework-4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JaredArrowood/Homework-4 on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JaredArrowood/Homework-4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking JaredArrowood/Homework-4 against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJaredArrowood%2FHomework-4" "/workspace/builds/worker-7-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/JaredArrowood/Homework-4
[INFO] finished tweaking git repo https://github.com/JaredArrowood/Homework-4
[INFO] tweaked toml for git repo https://github.com/JaredArrowood/Homework-4 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/JaredArrowood/Homework-4 on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/JaredArrowood/Homework-4 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c33789109b2e0d546caa3913ba54ea7cdb57663e63748753e2c38e105017c570
[INFO] running `Command { std: "docker" "start" "-a" "c33789109b2e0d546caa3913ba54ea7cdb57663e63748753e2c38e105017c570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c33789109b2e0d546caa3913ba54ea7cdb57663e63748753e2c38e105017c570", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c33789109b2e0d546caa3913ba54ea7cdb57663e63748753e2c38e105017c570", kill_on_drop: false }`
[INFO] [stdout] c33789109b2e0d546caa3913ba54ea7cdb57663e63748753e2c38e105017c570
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 636f197d69f8d14faef3e6b8f35581ff4a1862047f2025e6959d3e45eea6c2ba
[INFO] running `Command { std: "docker" "start" "-a" "636f197d69f8d14faef3e6b8f35581ff4a1862047f2025e6959d3e45eea6c2ba", kill_on_drop: false }`
[INFO] [stderr]     Checking homework4 v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/lib.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     if(_n == 0)
[INFO] [stdout]   |       ^       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 -     if(_n == 0)
[INFO] [stdout] 6 +     if _n == 0 
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     if(_n == 1)
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -     if(_n == 1)
[INFO] [stdout] 11 +     if _n == 1 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |     if(string == rev_string)
[INFO] [stdout]    |       ^                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     if(string == rev_string)
[INFO] [stdout] 28 +     if string == rev_string 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 |     if(_n >= vec.len())
[INFO] [stdout]    |       ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -     if(_n >= vec.len())
[INFO] [stdout] 39 +     if _n >= vec.len() 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if(*count > max_count)
[INFO] [stdout]    |           ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 60 -         if(*count > max_count)
[INFO] [stdout] 60 +         if *count > max_count 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 |     if(max_count == 0)
[INFO] [stdout]    |       ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 66 -     if(max_count == 0)
[INFO] [stdout] 66 +     if max_count == 0 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(_arr1.len() != _arr2.len())
[INFO] [stdout]    |       ^                          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(_arr1.len() != _arr2.len())
[INFO] [stdout] 79 +     if _arr1.len() != _arr2.len() 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]  --> src/lib.rs:6:7
[INFO] [stdout]   |
[INFO] [stdout] 6 |     if(_n == 0)
[INFO] [stdout]   |       ^       ^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_parens)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]   |
[INFO] [stdout] 6 -     if(_n == 0)
[INFO] [stdout] 6 +     if _n == 0 
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:147:11
[INFO] [stdout]     |
[INFO] [stdout] 147 |         if(self.entries.iter().any(|entry| entry.name == _name))
[INFO] [stdout]     |           ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -         if(self.entries.iter().any(|entry| entry.name == _name))
[INFO] [stdout] 147 +         if self.entries.iter().any(|entry| entry.name == _name) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:152:11
[INFO] [stdout]     |
[INFO] [stdout] 152 |         if(parts.len() != 3 || parts[0].len() != 3 || parts[1].len() != 3 || parts[2].len() != 4 ||
[INFO] [stdout]     |           ^
[INFO] [stdout] ...
[INFO] [stdout] 155 |            !parts[2].chars().all(|c| c.is_digit(10)))
[INFO] [stdout]     |                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 ~         if parts.len() != 3 || parts[0].len() != 3 || parts[1].len() != 3 || parts[2].len() != 4 ||
[INFO] [stdout] 153 |            !parts[0].chars().all(|c| c.is_digit(10)) ||
[INFO] [stdout] 154 |            !parts[1].chars().all(|c| c.is_digit(10)) ||
[INFO] [stdout] 155 ~            !parts[2].chars().all(|c| c.is_digit(10)) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 |         if(_is_listed && self.entries.iter().any(|entry| entry.number == _number && entry.is_listed))
[INFO] [stdout]     |           ^                                                                                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -         if(_is_listed && self.entries.iter().any(|entry| entry.number == _number && entry.is_listed))
[INFO] [stdout] 159 +         if _is_listed && self.entries.iter().any(|entry| entry.number == _number && entry.is_listed) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:11:7
[INFO] [stdout]    |
[INFO] [stdout] 11 |     if(_n == 1)
[INFO] [stdout]    |       ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 11 -     if(_n == 1)
[INFO] [stdout] 11 +     if _n == 1 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:178:15
[INFO] [stdout]     |
[INFO] [stdout] 178 |             if(entry.name == _name && entry.is_listed)
[INFO] [stdout]     |               ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -             if(entry.name == _name && entry.is_listed)
[INFO] [stdout] 178 +             if entry.name == _name && entry.is_listed 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:28:7
[INFO] [stdout]    |
[INFO] [stdout] 28 |     if(string == rev_string)
[INFO] [stdout]    |       ^                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 28 -     if(string == rev_string)
[INFO] [stdout] 28 +     if string == rev_string 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:39:7
[INFO] [stdout]    |
[INFO] [stdout] 39 |     if(_n >= vec.len())
[INFO] [stdout]    |       ^               ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 39 -     if(_n >= vec.len())
[INFO] [stdout] 39 +     if _n >= vec.len() 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:60:11
[INFO] [stdout]    |
[INFO] [stdout] 60 |         if(*count > max_count)
[INFO] [stdout]    |           ^                  ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 60 -         if(*count > max_count)
[INFO] [stdout] 60 +         if *count > max_count 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:66:7
[INFO] [stdout]    |
[INFO] [stdout] 66 |     if(max_count == 0)
[INFO] [stdout]    |       ^              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 66 -     if(max_count == 0)
[INFO] [stdout] 66 +     if max_count == 0 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/lib.rs:79:7
[INFO] [stdout]    |
[INFO] [stdout] 79 |     if(_arr1.len() != _arr2.len())
[INFO] [stdout]    |       ^                          ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 79 -     if(_arr1.len() != _arr2.len())
[INFO] [stdout] 79 +     if _arr1.len() != _arr2.len() 
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:147:11
[INFO] [stdout]     |
[INFO] [stdout] 147 |         if(self.entries.iter().any(|entry| entry.name == _name))
[INFO] [stdout]     |           ^                                                    ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 147 -         if(self.entries.iter().any(|entry| entry.name == _name))
[INFO] [stdout] 147 +         if self.entries.iter().any(|entry| entry.name == _name) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:152:11
[INFO] [stdout]     |
[INFO] [stdout] 152 |         if(parts.len() != 3 || parts[0].len() != 3 || parts[1].len() != 3 || parts[2].len() != 4 ||
[INFO] [stdout]     |           ^
[INFO] [stdout] ...
[INFO] [stdout] 155 |            !parts[2].chars().all(|c| c.is_digit(10)))
[INFO] [stdout]     |                                                     ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 152 ~         if parts.len() != 3 || parts[0].len() != 3 || parts[1].len() != 3 || parts[2].len() != 4 ||
[INFO] [stdout] 153 |            !parts[0].chars().all(|c| c.is_digit(10)) ||
[INFO] [stdout] 154 |            !parts[1].chars().all(|c| c.is_digit(10)) ||
[INFO] [stdout] 155 ~            !parts[2].chars().all(|c| c.is_digit(10)) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:159:11
[INFO] [stdout]     |
[INFO] [stdout] 159 |         if(_is_listed && self.entries.iter().any(|entry| entry.number == _number && entry.is_listed))
[INFO] [stdout]     |           ^                                                                                         ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 159 -         if(_is_listed && self.entries.iter().any(|entry| entry.number == _number && entry.is_listed))
[INFO] [stdout] 159 +         if _is_listed && self.entries.iter().any(|entry| entry.number == _number && entry.is_listed) 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]    --> src/lib.rs:178:15
[INFO] [stdout]     |
[INFO] [stdout] 178 |             if(entry.name == _name && entry.is_listed)
[INFO] [stdout]     |               ^                                      ^
[INFO] [stdout]     |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 178 -             if(entry.name == _name && entry.is_listed)
[INFO] [stdout] 178 +             if entry.name == _name && entry.is_listed 
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.23s
[INFO] running `Command { std: "docker" "inspect" "636f197d69f8d14faef3e6b8f35581ff4a1862047f2025e6959d3e45eea6c2ba", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "636f197d69f8d14faef3e6b8f35581ff4a1862047f2025e6959d3e45eea6c2ba", kill_on_drop: false }`
[INFO] [stdout] 636f197d69f8d14faef3e6b8f35581ff4a1862047f2025e6959d3e45eea6c2ba