[INFO] cloning repository https://github.com/lucascmgs/TrabalhoQuadradoDePalavras
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/lucascmgs/TrabalhoQuadradoDePalavras" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascmgs%2FTrabalhoQuadradoDePalavras", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascmgs%2FTrabalhoQuadradoDePalavras'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a5930a00d630e69aa8c76da54cb020244dba7040
[INFO] checking lucascmgs/TrabalhoQuadradoDePalavras against master#6526e5c772f2da07db745c94ca6bb0a591a39ba4 for pr-80920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flucascmgs%2FTrabalhoQuadradoDePalavras" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/lucascmgs/TrabalhoQuadradoDePalavras on toolchain 6526e5c772f2da07db745c94ca6bb0a591a39ba4
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/lucascmgs/TrabalhoQuadradoDePalavras
[INFO] finished tweaking git repo https://github.com/lucascmgs/TrabalhoQuadradoDePalavras
[INFO] tweaked toml for git repo https://github.com/lucascmgs/TrabalhoQuadradoDePalavras written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/lucascmgs/TrabalhoQuadradoDePalavras already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18edfd49a45cd7f6af2ea657990c15d4a5c2f0db5e8cd15b95b38ac2f10b1bbe
[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" "18edfd49a45cd7f6af2ea657990c15d4a5c2f0db5e8cd15b95b38ac2f10b1bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18edfd49a45cd7f6af2ea657990c15d4a5c2f0db5e8cd15b95b38ac2f10b1bbe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18edfd49a45cd7f6af2ea657990c15d4a5c2f0db5e8cd15b95b38ac2f10b1bbe", kill_on_drop: false }`
[INFO] [stdout] 18edfd49a45cd7f6af2ea657990c15d4a5c2f0db5e8cd15b95b38ac2f10b1bbe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "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@sha256:21f1ed92105a0ef9b0d27ad8bdeb7f36f9f01ac17fffe3a3f3dc5241fc25d8f4" "/opt/rustwide/cargo-home/bin/cargo" "+6526e5c772f2da07db745c94ca6bb0a591a39ba4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 37be3fa34bae83f9da610dab2b37fd31fbe5c4e6ed2b12a3ea2148a80b58a3e8
[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" "37be3fa34bae83f9da610dab2b37fd31fbe5c4e6ed2b12a3ea2148a80b58a3e8", kill_on_drop: false }`
[INFO] [stderr]     Checking quadrado_de_palavras v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable `recorreu` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 let mut recorreu = false;
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_recorreu` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `recorreu` is never read
[INFO] [stdout]    --> src/main.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     recorreu = true;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/trie.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     value: Option<T>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `level`
[INFO] [stdout]  --> src/trie.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     level: i64
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `has_word`
[INFO] [stdout]   --> src/trie.rs:62:12
[INFO] [stdout]    |
[INFO] [stdout] 62 |     pub fn has_word (&mut self, word: &Vec<T>) -> bool{
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `recorreu` is assigned to, but never used
[INFO] [stdout]   --> src/main.rs:93:21
[INFO] [stdout]    |
[INFO] [stdout] 93 |                 let mut recorreu = false;
[INFO] [stdout]    |                     ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout]    = note: consider using `_recorreu` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `recorreu` is never read
[INFO] [stdout]    --> src/main.rs:103:21
[INFO] [stdout]     |
[INFO] [stdout] 103 |                     recorreu = true;
[INFO] [stdout]     |                     ^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stdout]     = help: maybe it is overwritten before being read?
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `value`
[INFO] [stdout]  --> src/trie.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     value: Option<T>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `level`
[INFO] [stdout]  --> src/trie.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     level: i64
[INFO] [stdout]   |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `get_chars`
[INFO] [stdout]    --> src/trie.rs:134:8
[INFO] [stdout]     |
[INFO] [stdout] 134 |     fn get_chars(word: &String) -> Vec<char> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.58s
[INFO] running `Command { std: "docker" "inspect" "37be3fa34bae83f9da610dab2b37fd31fbe5c4e6ed2b12a3ea2148a80b58a3e8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "37be3fa34bae83f9da610dab2b37fd31fbe5c4e6ed2b12a3ea2148a80b58a3e8", kill_on_drop: false }`
[INFO] [stdout] 37be3fa34bae83f9da610dab2b37fd31fbe5c4e6ed2b12a3ea2148a80b58a3e8