[INFO] cloning repository https://github.com/rapaktech/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/rapaktech/rust-oop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frapaktech%2Frust-oop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frapaktech%2Frust-oop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] d38f37532cfc17cc6cbf2e9fd874af9108913219
[INFO] checking rapaktech/rust-oop against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frapaktech%2Frust-oop" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rapaktech/rust-oop on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rapaktech/rust-oop
[INFO] finished tweaking git repo https://github.com/rapaktech/rust-oop
[INFO] tweaked toml for git repo https://github.com/rapaktech/rust-oop written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rapaktech/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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "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 rapaktech/rust-oop against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frapaktech%2Frust-oop" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rapaktech/rust-oop on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rapaktech/rust-oop
[INFO] finished tweaking git repo https://github.com/rapaktech/rust-oop
[INFO] tweaked toml for git repo https://github.com/rapaktech/rust-oop written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rapaktech/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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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 rapaktech/rust-oop against try#785364c7e5e0804473a3fddfb579798ea14e3493 for pr-114682
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frapaktech%2Frust-oop" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rapaktech/rust-oop on toolchain 785364c7e5e0804473a3fddfb579798ea14e3493
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rapaktech/rust-oop
[INFO] finished tweaking git repo https://github.com/rapaktech/rust-oop
[INFO] tweaked toml for git repo https://github.com/rapaktech/rust-oop written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/rapaktech/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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f2402c2a679e704d28f6c55b9a58a8c1eb0892f31ee7cc1f740454d495711d5b
[INFO] running `Command { std: "docker" "start" "-a" "f2402c2a679e704d28f6c55b9a58a8c1eb0892f31ee7cc1f740454d495711d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f2402c2a679e704d28f6c55b9a58a8c1eb0892f31ee7cc1f740454d495711d5b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f2402c2a679e704d28f6c55b9a58a8c1eb0892f31ee7cc1f740454d495711d5b", kill_on_drop: false }`
[INFO] [stdout] f2402c2a679e704d28f6c55b9a58a8c1eb0892f31ee7cc1f740454d495711d5b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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" "+785364c7e5e0804473a3fddfb579798ea14e3493" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 577e4e98213b9f3c6a4191d44ca12cf8523e2861bcf4c0ac12d92452e5e85e06
[INFO] running `Command { std: "docker" "start" "-a" "577e4e98213b9f3c6a4191d44ca12cf8523e2861bcf4c0ac12d92452e5e85e06", kill_on_drop: false }`
[INFO] [stderr]     Checking rust-oop v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]    --> src/main.rs:141:31
[INFO] [stdout]     |
[INFO] [stdout] 141 |         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: struct `AveragedCollection` is never constructed
[INFO] [stdout]  --> src/main.rs:2:16
[INFO] [stdout]   |
[INFO] [stdout] 2 |     pub struct AveragedCollection {
[INFO] [stdout]   |                ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `post`
[INFO] [stdout]    --> src/main.rs:141:31
[INFO] [stdout]     |
[INFO] [stdout] 141 |         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: methods `add`, `remove`, `average`, and `update_average` are never used
[INFO] [stdout]   --> src/main.rs:8:16
[INFO] [stdout]    |
[INFO] [stdout] 7  |     impl AveragedCollection {
[INFO] [stdout]    |     ----------------------- methods in this implementation
[INFO] [stdout] 8  |         pub fn add(&mut self, value: i32) {
[INFO] [stdout]    |                ^^^
[INFO] [stdout] ...
[INFO] [stdout] 13 |         pub fn remove(&mut self) -> Option<i32> {
[INFO] [stdout]    |                ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 24 |         pub fn average(&self) -> f64 {
[INFO] [stdout]    |                ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 28 |         fn update_average(&mut self) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `width`, `height`, and `options` are never read
[INFO] [stdout]   --> src/main.rs:63:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     struct SelectBox {
[INFO] [stdout]    |            --------- fields in this struct
[INFO] [stdout] 63 |         width: u32,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 64 |         height: u32,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 65 |         options: Vec<String>,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "577e4e98213b9f3c6a4191d44ca12cf8523e2861bcf4c0ac12d92452e5e85e06", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "577e4e98213b9f3c6a4191d44ca12cf8523e2861bcf4c0ac12d92452e5e85e06", kill_on_drop: false }`
[INFO] [stdout] 577e4e98213b9f3c6a4191d44ca12cf8523e2861bcf4c0ac12d92452e5e85e06