[INFO] updating cached repository PhdTrollSlayer/trabalho-filas-pilhas
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/PhdTrollSlayer/trabalho-filas-pilhas
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/PhdTrollSlayer/trabalho-filas-pilhas" "work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/PhdTrollSlayer/trabalho-filas-pilhas"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/PhdTrollSlayer/trabalho-filas-pilhas'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/PhdTrollSlayer/trabalho-filas-pilhas" "work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/PhdTrollSlayer/trabalho-filas-pilhas"`
[INFO] [stderr] Cloning into 'work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/PhdTrollSlayer/trabalho-filas-pilhas'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] c4f20e6ae30e5868341fc62818039bcd21e920b4
[INFO] sha for GitHub repo PhdTrollSlayer/trabalho-filas-pilhas: c4f20e6ae30e5868341fc62818039bcd21e920b4
[INFO] validating manifest of PhdTrollSlayer/trabalho-filas-pilhas on toolchain master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of PhdTrollSlayer/trabalho-filas-pilhas on toolchain try#29640c57b5f92febba0e40c50cb863c9a7ede51d
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing PhdTrollSlayer/trabalho-filas-pilhas
[INFO] finished frobbing PhdTrollSlayer/trabalho-filas-pilhas
[INFO] frobbed toml for PhdTrollSlayer/trabalho-filas-pilhas written to work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/PhdTrollSlayer/trabalho-filas-pilhas/Cargo.toml
[INFO] started frobbing PhdTrollSlayer/trabalho-filas-pilhas
[INFO] finished frobbing PhdTrollSlayer/trabalho-filas-pilhas
[INFO] frobbed toml for PhdTrollSlayer/trabalho-filas-pilhas written to work/ex/pr-57745/sources/try#29640c57b5f92febba0e40c50cb863c9a7ede51d/gh/PhdTrollSlayer/trabalho-filas-pilhas/Cargo.toml
[INFO] crate PhdTrollSlayer/trabalho-filas-pilhas has a lockfile. skipping
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+29640c57b5f92febba0e40c50cb863c9a7ede51d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking PhdTrollSlayer/trabalho-filas-pilhas against master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039 for pr-57745
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-57745/worker-3/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-57745/sources/master#f613dc138b4012cf3d2eb40718fbcc7cf0a34039/gh/PhdTrollSlayer/trabalho-filas-pilhas:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+f613dc138b4012cf3d2eb40718fbcc7cf0a34039-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] b6fe6f653d096169f035ea7adeff9fc0fa7052c6148e9481451506f23a5a73f5
[INFO] running `"docker" "start" "-a" "b6fe6f653d096169f035ea7adeff9fc0fa7052c6148e9481451506f23a5a73f5"`
[INFO] [stderr]     Checking pilhas v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused import: `Stdio`
[INFO] [stderr]  --> src/main.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::{Command, Stdio};
[INFO] [stderr]   |                             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pilha::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use pilha::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `node::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use node::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Stdio`
[INFO] [stderr]  --> src/main.rs:4:29
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::process::{Command, Stdio};
[INFO] [stderr]   |                             ^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `pilha::*`
[INFO] [stderr]  --> src/main.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use pilha::*;
[INFO] [stderr]   |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `node::*`
[INFO] [stderr]  --> src/main.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 | use node::*;
[INFO] [stderr]   |     ^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `loader`
[INFO] [stderr]   --> src/main.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     let loader = Command::new("sh")
[INFO] [stderr]    |                         ^^^^^^ help: consider using `_loader` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pilha`
[INFO] [stderr]  --> src/pilha.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Pilha<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/pilha.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new() -> Pilha<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/pilha.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn push(&mut self, mut new_head: Box<Node<T>>) -> Option<&T>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/pilha.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn pop(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `top`
[INFO] [stderr]   --> src/pilha.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn top(&mut self) -> Option<&T>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/node.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(v: T) -> Node<T> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `front`
[INFO] [stderr]   --> src/fila.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn front(&mut self) -> &T {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `loader`
[INFO] [stderr]   --> src/main.rs:55:25
[INFO] [stderr]    |
[INFO] [stderr] 55 |                     let loader = Command::new("sh")
[INFO] [stderr]    |                         ^^^^^^ help: consider using `_loader` instead
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Pilha`
[INFO] [stderr]  --> src/pilha.rs:5:1
[INFO] [stderr]   |
[INFO] [stderr] 5 | pub struct Pilha<T> {
[INFO] [stderr]   | ^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]   --> src/pilha.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 |     pub fn new() -> Pilha<T> {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `push`
[INFO] [stderr]   --> src/pilha.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     pub fn push(&mut self, mut new_head: Box<Node<T>>) -> Option<&T>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `pop`
[INFO] [stderr]   --> src/pilha.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 |     pub fn pop(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `top`
[INFO] [stderr]   --> src/pilha.rs:35:5
[INFO] [stderr]    |
[INFO] [stderr] 35 |     pub fn top(&mut self) -> Option<&T>{
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `new`
[INFO] [stderr]  --> src/node.rs:8:5
[INFO] [stderr]   |
[INFO] [stderr] 8 |     pub fn new(v: T) -> Node<T> {
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `front`
[INFO] [stderr]   --> src/fila.rs:33:5
[INFO] [stderr]    |
[INFO] [stderr] 33 |     pub fn front(&mut self) -> &T {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.77s
[INFO] running `"docker" "inspect" "b6fe6f653d096169f035ea7adeff9fc0fa7052c6148e9481451506f23a5a73f5"`
[INFO] running `"docker" "rm" "-f" "b6fe6f653d096169f035ea7adeff9fc0fa7052c6148e9481451506f23a5a73f5"`
[INFO] [stdout] b6fe6f653d096169f035ea7adeff9fc0fa7052c6148e9481451506f23a5a73f5