[INFO] cloning repository https://github.com/TomSpencerLondon/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/TomSpencerLondon/Rust-OOP" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2FRust-OOP", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2FRust-OOP'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f221373c903c503f0cd675db1d0024715bfebfd5
[INFO] checking TomSpencerLondon/Rust-OOP against master#c3def263a44e07e09ae6d57abfc8650227fb4972 for pr-118920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2FRust-OOP" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomSpencerLondon/Rust-OOP on toolchain c3def263a44e07e09ae6d57abfc8650227fb4972
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TomSpencerLondon/Rust-OOP
[INFO] finished tweaking git repo https://github.com/TomSpencerLondon/Rust-OOP
[INFO] tweaked toml for git repo https://github.com/TomSpencerLondon/Rust-OOP written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/TomSpencerLondon/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" "+c3def263a44e07e09ae6d57abfc8650227fb4972" "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 TomSpencerLondon/Rust-OOP against try#3931cbb869e499bf6db1e4d580cc247efbf183df for pr-118920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTomSpencerLondon%2FRust-OOP" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/TomSpencerLondon/Rust-OOP on toolchain 3931cbb869e499bf6db1e4d580cc247efbf183df
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/TomSpencerLondon/Rust-OOP
[INFO] finished tweaking git repo https://github.com/TomSpencerLondon/Rust-OOP
[INFO] tweaked toml for git repo https://github.com/TomSpencerLondon/Rust-OOP written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/TomSpencerLondon/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" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "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-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a3ce84e8ddb1643f1e6e1158a19344b843fd58bdf6b65d7f9ef5be0c312e134c
[INFO] running `Command { std: "docker" "start" "-a" "a3ce84e8ddb1643f1e6e1158a19344b843fd58bdf6b65d7f9ef5be0c312e134c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a3ce84e8ddb1643f1e6e1158a19344b843fd58bdf6b65d7f9ef5be0c312e134c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a3ce84e8ddb1643f1e6e1158a19344b843fd58bdf6b65d7f9ef5be0c312e134c", kill_on_drop: false }`
[INFO] [stdout] a3ce84e8ddb1643f1e6e1158a19344b843fd58bdf6b65d7f9ef5be0c312e134c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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" "+3931cbb869e499bf6db1e4d580cc247efbf183df" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c10acd64d16df9433cf0376151359be6b44aeeb98c839e0275a5f5df8c506686
[INFO] running `Command { std: "docker" "start" "-a" "c10acd64d16df9433cf0376151359be6b44aeeb98c839e0275a5f5df8c506686", kill_on_drop: false }`
[INFO] [stderr]     Checking oop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/example1.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let total: i32 = self.get_total();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]  --> src/example3.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     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] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     struct SelectBox {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 57 |         width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 58 |         height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Post` is never constructed
[INFO] [stdout]   --> src/example4.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Post {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DraftPost` is never constructed
[INFO] [stdout]   --> src/example4.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct DraftPost {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `content` are never used
[INFO] [stdout]   --> src/example4.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Post {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 21 |     pub fn new() -> DraftPost {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn content(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_text` and `request_review` are never used
[INFO] [stdout]   --> src/example4.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl DraftPost {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 34 |     // We can add text to a draft but there is no getter for content
[INFO] [stdout] 35 |     pub fn add_text(&mut self, text: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn request_review(self) -> PendingReviewPost {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PendingReviewPost` is never constructed
[INFO] [stdout]   --> src/example4.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct PendingReviewPost {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `approve` is never used
[INFO] [stdout]   --> src/example4.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl PendingReviewPost {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 51 |     pub fn approve(self) -> Post {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `total`
[INFO] [stdout]   --> src/example1.rs:86:13
[INFO] [stdout]    |
[INFO] [stdout] 86 |         let total: i32 = self.get_total();
[INFO] [stdout]    |             ^^^^^ help: if this is intentional, prefix it with an underscore: `_total`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]  --> src/example3.rs:7:27
[INFO] [stdout]   |
[INFO] [stdout] 7 |     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] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/main.rs:57:9
[INFO] [stdout]    |
[INFO] [stdout] 56 |     struct SelectBox {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 57 |         width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 58 |         height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Post` is never constructed
[INFO] [stdout]   --> src/example4.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Post {
[INFO] [stdout]    |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `DraftPost` is never constructed
[INFO] [stdout]   --> src/example4.rs:16:12
[INFO] [stdout]    |
[INFO] [stdout] 16 | pub struct DraftPost {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `content` are never used
[INFO] [stdout]   --> src/example4.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 20 | impl Post {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 21 |     pub fn new() -> DraftPost {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn content(&self) -> &str {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `add_text` and `request_review` are never used
[INFO] [stdout]   --> src/example4.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 33 | impl DraftPost {
[INFO] [stdout]    | -------------- methods in this implementation
[INFO] [stdout] 34 |     // We can add text to a draft but there is no getter for content
[INFO] [stdout] 35 |     pub fn add_text(&mut self, text: &str) {
[INFO] [stdout]    |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 39 |     pub fn request_review(self) -> PendingReviewPost {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `PendingReviewPost` is never constructed
[INFO] [stdout]   --> src/example4.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 | pub struct PendingReviewPost {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `approve` is never used
[INFO] [stdout]   --> src/example4.rs:51:12
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl PendingReviewPost {
[INFO] [stdout]    | ---------------------- method in this implementation
[INFO] [stdout] 51 |     pub fn approve(self) -> Post {
[INFO] [stdout]    |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "c10acd64d16df9433cf0376151359be6b44aeeb98c839e0275a5f5df8c506686", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c10acd64d16df9433cf0376151359be6b44aeeb98c839e0275a5f5df8c506686", kill_on_drop: false }`
[INFO] [stdout] c10acd64d16df9433cf0376151359be6b44aeeb98c839e0275a5f5df8c506686