[INFO] cloning repository https://github.com/wibosa/rusty1
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/wibosa/rusty1" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwibosa%2Frusty1", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwibosa%2Frusty1'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ea1b86e017ddeae8dea9ceca315e4c4939fd2c79
[INFO] checking wibosa/rusty1 against master#aa067fb984d36462548bb785da221bfaf38253f0 for pr-122470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwibosa%2Frusty1" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wibosa/rusty1 on toolchain aa067fb984d36462548bb785da221bfaf38253f0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+aa067fb984d36462548bb785da221bfaf38253f0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wibosa/rusty1
[INFO] finished tweaking git repo https://github.com/wibosa/rusty1
[INFO] tweaked toml for git repo https://github.com/wibosa/rusty1 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/wibosa/rusty1 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" "+aa067fb984d36462548bb785da221bfaf38253f0" "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 wibosa/rusty1 against try#707d6562f55b55a7aab4ab3a904997116b358314 for pr-122470
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fwibosa%2Frusty1" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/wibosa/rusty1 on toolchain 707d6562f55b55a7aab4ab3a904997116b358314
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+707d6562f55b55a7aab4ab3a904997116b358314" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/wibosa/rusty1
[INFO] finished tweaking git repo https://github.com/wibosa/rusty1
[INFO] tweaked toml for git repo https://github.com/wibosa/rusty1 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/wibosa/rusty1 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" "+707d6562f55b55a7aab4ab3a904997116b358314" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+707d6562f55b55a7aab4ab3a904997116b358314" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17a1b43fccc586b797376eb3187150c9f99851b71d038820d8e7b229df5acc47
[INFO] running `Command { std: "docker" "start" "-a" "17a1b43fccc586b797376eb3187150c9f99851b71d038820d8e7b229df5acc47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17a1b43fccc586b797376eb3187150c9f99851b71d038820d8e7b229df5acc47", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17a1b43fccc586b797376eb3187150c9f99851b71d038820d8e7b229df5acc47", kill_on_drop: false }`
[INFO] [stdout] 17a1b43fccc586b797376eb3187150c9f99851b71d038820d8e7b229df5acc47
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+707d6562f55b55a7aab4ab3a904997116b358314" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 08f58c33ddda8c792f486e6dde56ebb9f8e78f51fe514d9b569470bf1538afc9
[INFO] running `Command { std: "docker" "start" "-a" "08f58c33ddda8c792f486e6dde56ebb9f8e78f51fe514d9b569470bf1538afc9", kill_on_drop: false }`
[INFO] [stderr]     Checking rusty1 v0.2.2020 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]    --> src/main.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     struct Person<'a> {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 142 |         // The 'a defines a lifetime
[INFO] [stdout] 143 |         name: &'a str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 144 |         age: u8,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 237 |     trait Animal {
[INFO] [stdout]     |           ------ associated function in this trait
[INFO] [stdout] 238 |         // Static method signature; `Self` refers to the implementor type.
[INFO] [stdout] 239 |         fn new(name: &'static str) -> Self;
[INFO] [stdout]     |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `name` and `age` are never read
[INFO] [stdout]    --> src/main.rs:143:9
[INFO] [stdout]     |
[INFO] [stdout] 141 |     struct Person<'a> {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] 142 |         // The 'a defines a lifetime
[INFO] [stdout] 143 |         name: &'a str,
[INFO] [stdout]     |         ^^^^
[INFO] [stdout] 144 |         age: u8,
[INFO] [stdout]     |         ^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `Person` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]    --> src/main.rs:239:12
[INFO] [stdout]     |
[INFO] [stdout] 237 |     trait Animal {
[INFO] [stdout]     |           ------ associated function in this trait
[INFO] [stdout] 238 |         // Static method signature; `Self` refers to the implementor type.
[INFO] [stdout] 239 |         fn new(name: &'static str) -> Self;
[INFO] [stdout]     |            ^^^
[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] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.09s
[INFO] running `Command { std: "docker" "inspect" "08f58c33ddda8c792f486e6dde56ebb9f8e78f51fe514d9b569470bf1538afc9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "08f58c33ddda8c792f486e6dde56ebb9f8e78f51fe514d9b569470bf1538afc9", kill_on_drop: false }`
[INFO] [stdout] 08f58c33ddda8c792f486e6dde56ebb9f8e78f51fe514d9b569470bf1538afc9