[INFO] cloning repository https://github.com/ranafge/rust-oop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ranafge/rust-oop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Franafge%2Frust-oop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Franafge%2Frust-oop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] a49e9428676dce0e0eb94e6e1288aba8e42421ce
[INFO] checking ranafge/rust-oop against master#b3bd7058c139e71bae0862ef8f8ac936208873e9 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Franafge%2Frust-oop" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ranafge/rust-oop on toolchain b3bd7058c139e71bae0862ef8f8ac936208873e9
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ranafge/rust-oop
[INFO] finished tweaking git repo https://github.com/ranafge/rust-oop
[INFO] tweaked toml for git repo https://github.com/ranafge/rust-oop written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/ranafge/rust-oop 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" "+b3bd7058c139e71bae0862ef8f8ac936208873e9" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking ranafge/rust-oop against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Franafge%2Frust-oop" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ranafge/rust-oop on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ranafge/rust-oop
[INFO] finished tweaking git repo https://github.com/ranafge/rust-oop
[INFO] tweaked toml for git repo https://github.com/ranafge/rust-oop written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ranafge/rust-oop 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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 ranafge/rust-oop against try#57fe1b734d9ff1c8a92bda60b85506b9648158d3 for pr-123752
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Franafge%2Frust-oop" "/workspace/builds/worker-6-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ranafge/rust-oop on toolchain 57fe1b734d9ff1c8a92bda60b85506b9648158d3
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ranafge/rust-oop
[INFO] finished tweaking git repo https://github.com/ranafge/rust-oop
[INFO] tweaked toml for git repo https://github.com/ranafge/rust-oop written to /workspace/builds/worker-6-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/ranafge/rust-oop 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" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "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-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 307d12078ca985467c325ea8d5258e5f7be7d389343758913184d4f6a7eb6282
[INFO] running `Command { std: "docker" "start" "-a" "307d12078ca985467c325ea8d5258e5f7be7d389343758913184d4f6a7eb6282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "307d12078ca985467c325ea8d5258e5f7be7d389343758913184d4f6a7eb6282", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "307d12078ca985467c325ea8d5258e5f7be7d389343758913184d4f6a7eb6282", kill_on_drop: false }`
[INFO] [stdout] 307d12078ca985467c325ea8d5258e5f7be7d389343758913184d4f6a7eb6282
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+57fe1b734d9ff1c8a92bda60b85506b9648158d3" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 92413d304c81e992cedff005719b477873c158a60a38736d2d7b0f838a30cc1f
[INFO] running `Command { std: "docker" "start" "-a" "92413d304c81e992cedff005719b477873c158a60a38736d2d7b0f838a30cc1f", kill_on_drop: false }`
[INFO] [stderr]     Checking oop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]    --> src/lib.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn content<'a> (&self, post: &'a Post) -> &'a str {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]    --> src/lib.rs:157:28
[INFO] [stdout]     |
[INFO] [stdout] 157 |     fn content<'a> (&self, post: &'a Post) -> &'a str {
[INFO] [stdout]     |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_post`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `content` is never used
[INFO] [stdout]    --> src/lib.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | trait State {
[INFO] [stdout]     |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn content<'a> (&self, post: &'a Post) -> &'a str {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `content` is never used
[INFO] [stdout]    --> src/lib.rs:157:8
[INFO] [stdout]     |
[INFO] [stdout] 154 | trait State {
[INFO] [stdout]     |       ----- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 157 |     fn content<'a> (&self, post: &'a Post) -> &'a str {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Button`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oop::{Button, Post, Screen};
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `process::Output`
[INFO] [stdout]  --> examples/partial_order.rs:1:34
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{fmt::{Debug, Display}, process::Output};
[INFO] [stdout]   |                                  ^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oop::Draw`
[INFO] [stdout]   --> src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use oop::Draw;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Button` is imported redundantly
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use oop::{Button, Post, Screen};
[INFO] [stdout]    |           ------ the item `Button` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 14 |     use oop::Button;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Button`
[INFO] [stdout]  --> src/main.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use oop::{Button, Post, Screen};
[INFO] [stdout]   |           ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `oop::Draw`
[INFO] [stdout]   --> src/main.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 13 |     use oop::Draw;
[INFO] [stdout]    |         ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the item `Button` is imported redundantly
[INFO] [stdout]   --> src/main.rs:14:9
[INFO] [stdout]    |
[INFO] [stdout] 1  | use oop::{Button, Post, Screen};
[INFO] [stdout]    |           ------ the item `Button` is already imported here
[INFO] [stdout] ...
[INFO] [stdout] 14 |     use oop::Button;
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `list_of_string`
[INFO] [stdout]   --> examples/partial_order.rs:25:9
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let list_of_string: Vec<String> = ls.iter().map(
[INFO] [stdout]    |         ^^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_list_of_string`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `compute` is never used
[INFO] [stdout]   --> examples/partial_order.rs:31:4
[INFO] [stdout]    |
[INFO] [stdout] 31 | fn compute(input: &i32, output: &mut i32) {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Clousre2` is never constructed
[INFO] [stdout]   --> examples/partial_order.rs:69:8
[INFO] [stdout]    |
[INFO] [stdout] 69 | struct Clousre2<F> {
[INFO] [stdout]    |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `call` is never used
[INFO] [stdout]   --> examples/partial_order.rs:79:12
[INFO] [stdout]    |
[INFO] [stdout] 75 | / impl <F> Clousre2<F> 
[INFO] [stdout] 76 | |     where F: Fn(&(u8, u16)) -> u8
[INFO] [stdout]    | |_________________________________- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 79 |           fn call(&self) -> u8 {
[INFO] [stdout]    |              ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `do_it2` is never used
[INFO] [stdout]   --> examples/partial_order.rs:86:4
[INFO] [stdout]    |
[INFO] [stdout] 86 | fn do_it2(data: &(u8, u64)) -> u8 {
[INFO] [stdout]    |    ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_one` is never used
[INFO] [stdout]   --> examples/partial_order.rs:92:4
[INFO] [stdout]    |
[INFO] [stdout] 92 | fn add_one(x: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_two` is never used
[INFO] [stdout]   --> examples/partial_order.rs:96:4
[INFO] [stdout]    |
[INFO] [stdout] 96 | fn add_two(f: fn(i32) -> i32, arg: i32) -> i32 {
[INFO] [stdout]    |    ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `add_three` is never used
[INFO] [stdout]    --> examples/partial_order.rs:100:4
[INFO] [stdout]     |
[INFO] [stdout] 100 | fn add_three(f: fn(i32) -> i32, arg: i32) -> i32 {
[INFO] [stdout]     |    ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `returns_closure` is never used
[INFO] [stdout]    --> examples/partial_order.rs:116:4
[INFO] [stdout]     |
[INFO] [stdout] 116 | fn returns_closure() -> Box<dyn Fn(i32) -> i32 >{
[INFO] [stdout]     |    ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Printable` is never used
[INFO] [stdout]    --> examples/partial_order.rs:124:7
[INFO] [stdout]     |
[INFO] [stdout] 124 | trait Printable {
[INFO] [stdout]     |       ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `print_it` is never used
[INFO] [stdout]    --> examples/partial_order.rs:129:4
[INFO] [stdout]     |
[INFO] [stdout] 129 | fn print_it<T: Printable> (item: T) {
[INFO] [stdout]     |    ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DebugPrintable` is never used
[INFO] [stdout]    --> examples/partial_order.rs:137:8
[INFO] [stdout]     |
[INFO] [stdout] 137 | trait  DebugPrintable: Printable {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `DisplayAndDebut` is never used
[INFO] [stdout]    --> examples/partial_order.rs:155:7
[INFO] [stdout]     |
[INFO] [stdout] 155 | trait DisplayAndDebut: Display + Debug {
[INFO] [stdout]     |       ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "92413d304c81e992cedff005719b477873c158a60a38736d2d7b0f838a30cc1f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "92413d304c81e992cedff005719b477873c158a60a38736d2d7b0f838a30cc1f", kill_on_drop: false }`
[INFO] [stdout] 92413d304c81e992cedff005719b477873c158a60a38736d2d7b0f838a30cc1f