[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 try#121a90d34197f711021eeb158e7f4184b8be8ceb for pr-140313
[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 121a90d34197f711021eeb158e7f4184b8be8ceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "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 TomSpencerLondon/Rust-OOP against try#121a90d34197f711021eeb158e7f4184b8be8ceb for pr-140313
[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 121a90d34197f711021eeb158e7f4184b8be8ceb
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "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" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8fbcb8053f3e0768e419bdba5f33c2b22b7ba69036b3f15da05890412847eb21
[INFO] running `Command { std: "docker" "start" "-a" "8fbcb8053f3e0768e419bdba5f33c2b22b7ba69036b3f15da05890412847eb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8fbcb8053f3e0768e419bdba5f33c2b22b7ba69036b3f15da05890412847eb21", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8fbcb8053f3e0768e419bdba5f33c2b22b7ba69036b3f15da05890412847eb21", kill_on_drop: false }`
[INFO] [stdout] 8fbcb8053f3e0768e419bdba5f33c2b22b7ba69036b3f15da05890412847eb21
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+121a90d34197f711021eeb158e7f4184b8be8ceb" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b346f4f667cf31c1d0e30a5ab1ea9d30f5623e70a9309a9d5260307d699c0868
[INFO] running `Command { std: "docker" "start" "-a" "b346f4f667cf31c1d0e30a5ab1ea9d30f5623e70a9309a9d5260307d699c0868", 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: 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: method `update_average` is never used
[INFO] [stdout]   --> src/example1.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Average {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn update_average(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/example2.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Button {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 40 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 41 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[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: 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: method `update_average` is never used
[INFO] [stdout]   --> src/example1.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub trait Average {
[INFO] [stdout]    |           ------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 15 |     fn update_average(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width` and `height` are never read
[INFO] [stdout]   --> src/example2.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub struct Button {
[INFO] [stdout]    |            ------ fields in this struct
[INFO] [stdout] 40 |     pub width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 41 |     pub height: u32,
[INFO] [stdout]    |         ^^^^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "b346f4f667cf31c1d0e30a5ab1ea9d30f5623e70a9309a9d5260307d699c0868", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b346f4f667cf31c1d0e30a5ab1ea9d30f5623e70a9309a9d5260307d699c0868", kill_on_drop: false }`
[INFO] [stdout] b346f4f667cf31c1d0e30a5ab1ea9d30f5623e70a9309a9d5260307d699c0868