[INFO] cloning repository Djjimenez895/RustShell
[INFO] running `"git" "clone" "--bare" "git://github.com/Djjimenez895/RustShell.git" "work/cache/sources/gh/Djjimenez895/RustShell"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/Djjimenez895/RustShell'...
[INFO] running `"git" "clone" "work/cache/sources/gh/Djjimenez895/RustShell" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Djjimenez895/RustShell"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Djjimenez895/RustShell'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/Djjimenez895/RustShell" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Djjimenez895/RustShell"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Djjimenez895/RustShell'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 591750011f1a59b2acd71b2d502a0aa3bab92ecf
[INFO] sha for GitHub repo Djjimenez895/RustShell: 591750011f1a59b2acd71b2d502a0aa3bab92ecf
[INFO] validating manifest of Djjimenez895/RustShell on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of Djjimenez895/RustShell on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing Djjimenez895/RustShell
[INFO] finished frobbing Djjimenez895/RustShell
[INFO] frobbed toml for Djjimenez895/RustShell written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Djjimenez895/RustShell/Cargo.toml
[INFO] started frobbing Djjimenez895/RustShell
[INFO] finished frobbing Djjimenez895/RustShell
[INFO] frobbed toml for Djjimenez895/RustShell written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/Djjimenez895/RustShell/Cargo.toml
[INFO] crate Djjimenez895/RustShell already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] checking Djjimenez895/RustShell against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-3/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/Djjimenez895/RustShell:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/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" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 55b3ef8f7f467f6f00376b4f3794f6885ed04ff4fe8049914fe68928b8f2959e
[INFO] running `"docker" "start" "-a" "55b3ef8f7f467f6f00376b4f3794f6885ed04ff4fe8049914fe68928b8f2959e"`
[INFO] [stderr]     Checking shell v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let mut prompt = prompt::Prompt::new();
[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: function is never used: `test`
[INFO] [stderr]  --> src/history.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/bgjobs.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/checker.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line_number`
[INFO] [stderr]   --> src/prompt.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     line_number: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `username`
[INFO] [stderr]   --> src/prompt.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     username: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_line_number`
[INFO] [stderr]   --> src/prompt.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn get_line_number(&self) -> &u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_username`
[INFO] [stderr]   --> src/prompt.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn get_username(&self) -> &String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `increment_line_number`
[INFO] [stderr]   --> src/prompt.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn increment_line_number(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_cwd`
[INFO] [stderr]   --> src/prompt.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn set_cwd(&mut self, new_cwd: PathBuf){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_prompt`
[INFO] [stderr]   --> src/prompt.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn print_prompt(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/main.rs:31:13
[INFO] [stderr]    |
[INFO] [stderr] 31 |         let mut prompt = prompt::Prompt::new();
[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: function is never used: `test`
[INFO] [stderr]  --> src/history.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/bgjobs.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test`
[INFO] [stderr]  --> src/checker.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | pub fn test() {
[INFO] [stderr]   | ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `line_number`
[INFO] [stderr]   --> src/prompt.rs:13:5
[INFO] [stderr]    |
[INFO] [stderr] 13 |     line_number: u32,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `username`
[INFO] [stderr]   --> src/prompt.rs:14:5
[INFO] [stderr]    |
[INFO] [stderr] 14 |     username: String,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_line_number`
[INFO] [stderr]   --> src/prompt.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 |     pub fn get_line_number(&self) -> &u32 {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `get_username`
[INFO] [stderr]   --> src/prompt.rs:34:5
[INFO] [stderr]    |
[INFO] [stderr] 34 |     pub fn get_username(&self) -> &String {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `increment_line_number`
[INFO] [stderr]   --> src/prompt.rs:44:5
[INFO] [stderr]    |
[INFO] [stderr] 44 |     pub fn increment_line_number(&mut self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `set_cwd`
[INFO] [stderr]   --> src/prompt.rs:49:5
[INFO] [stderr]    |
[INFO] [stderr] 49 |     pub fn set_cwd(&mut self, new_cwd: PathBuf){
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `print_prompt`
[INFO] [stderr]   --> src/prompt.rs:54:5
[INFO] [stderr]    |
[INFO] [stderr] 54 |     pub fn print_prompt(&self) {
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.88s
[INFO] running `"docker" "inspect" "55b3ef8f7f467f6f00376b4f3794f6885ed04ff4fe8049914fe68928b8f2959e"`
[INFO] running `"docker" "rm" "-f" "55b3ef8f7f467f6f00376b4f3794f6885ed04ff4fe8049914fe68928b8f2959e"`
[INFO] [stdout] 55b3ef8f7f467f6f00376b4f3794f6885ed04ff4fe8049914fe68928b8f2959e