[INFO] cloning repository https://github.com/aloksbd/rust2
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/aloksbd/rust2" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faloksbd%2Frust2", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faloksbd%2Frust2'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1de1229e5885ab38c9575612c08eeb5101b5ab2e
[INFO] checking aloksbd/rust2 against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Faloksbd%2Frust2" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/aloksbd/rust2 on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/aloksbd/rust2
[INFO] finished tweaking git repo https://github.com/aloksbd/rust2
[INFO] tweaked toml for git repo https://github.com/aloksbd/rust2 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/aloksbd/rust2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc39ae63ebaa67f9b20552370809e70d49e4f0dde005ae050b5310911aa09a63
[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" "dc39ae63ebaa67f9b20552370809e70d49e4f0dde005ae050b5310911aa09a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc39ae63ebaa67f9b20552370809e70d49e4f0dde005ae050b5310911aa09a63", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc39ae63ebaa67f9b20552370809e70d49e4f0dde005ae050b5310911aa09a63", kill_on_drop: false }`
[INFO] [stdout] dc39ae63ebaa67f9b20552370809e70d49e4f0dde005ae050b5310911aa09a63
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47cef7ff338b53e2e33eabd3f0f8bcc3e04de4e1faf2b890fdcf5b9efcbf4e1b
[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" "47cef7ff338b53e2e33eabd3f0f8bcc3e04de4e1faf2b890fdcf5b9efcbf4e1b", kill_on_drop: false }`
[INFO] [stderr]     Checking hierarchical_objects v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `crate::position::Position`
[INFO] [stdout]  --> src/object.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::position::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::position::Position`
[INFO] [stdout]  --> src/object.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::position::Position;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/position.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new() -> Position{
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_x_y`
[INFO] [stdout]   --> src/position.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new_with_x_y(_x: i32, _y: i32) -> Position{
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/position.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn x(&self) -> i32{
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `y`
[INFO] [stdout]   --> src/position.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn y(&self) -> i32{
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_x`
[INFO] [stdout]   --> src/position.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn set_x(&mut self, _x: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_y`
[INFO] [stdout]   --> src/position.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn set_y(&mut self, _y: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rename_to`
[INFO] [stdout]   --> src/object.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn rename_to(&mut self, _name: &str){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_x`
[INFO] [stdout]   --> src/object.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn set_x(&mut self, _x: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_y`
[INFO] [stdout]   --> src/object.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn set_y(&mut self, _y: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_children`
[INFO] [stdout]   --> src/object.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn print_children(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]  --> src/position.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 |     pub fn new() -> Position{
[INFO] [stdout]   |            ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new_with_x_y`
[INFO] [stdout]   --> src/position.rs:14:12
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub fn new_with_x_y(_x: i32, _y: i32) -> Position{
[INFO] [stdout]    |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x`
[INFO] [stdout]   --> src/position.rs:20:12
[INFO] [stdout]    |
[INFO] [stdout] 20 |     pub fn x(&self) -> i32{
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `y`
[INFO] [stdout]   --> src/position.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn y(&self) -> i32{
[INFO] [stdout]    |            ^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_x`
[INFO] [stdout]   --> src/position.rs:26:12
[INFO] [stdout]    |
[INFO] [stdout] 26 |     pub fn set_x(&mut self, _x: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_y`
[INFO] [stdout]   --> src/position.rs:29:12
[INFO] [stdout]    |
[INFO] [stdout] 29 |     pub fn set_y(&mut self, _y: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `rename_to`
[INFO] [stdout]   --> src/object.rs:34:12
[INFO] [stdout]    |
[INFO] [stdout] 34 |     pub fn rename_to(&mut self, _name: &str){
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_x`
[INFO] [stdout]   --> src/object.rs:54:12
[INFO] [stdout]    |
[INFO] [stdout] 54 |     pub fn set_x(&mut self, _x: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `set_y`
[INFO] [stdout]   --> src/object.rs:57:12
[INFO] [stdout]    |
[INFO] [stdout] 57 |     pub fn set_y(&mut self, _y: i32){
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `print_children`
[INFO] [stdout]   --> src/object.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |     pub fn print_children(&self){
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 11 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.43s
[INFO] running `Command { std: "docker" "inspect" "47cef7ff338b53e2e33eabd3f0f8bcc3e04de4e1faf2b890fdcf5b9efcbf4e1b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47cef7ff338b53e2e33eabd3f0f8bcc3e04de4e1faf2b890fdcf5b9efcbf4e1b", kill_on_drop: false }`
[INFO] [stdout] 47cef7ff338b53e2e33eabd3f0f8bcc3e04de4e1faf2b890fdcf5b9efcbf4e1b