[INFO] cloning repository https://github.com/chaudharypraveen98/RustyRustLessons
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/chaudharypraveen98/RustyRustLessons" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchaudharypraveen98%2FRustyRustLessons", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchaudharypraveen98%2FRustyRustLessons'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6c455e4141b996475dd93a321df32f1e66825057
[INFO] checking chaudharypraveen98/RustyRustLessons against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchaudharypraveen98%2FRustyRustLessons" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chaudharypraveen98/RustyRustLessons
[INFO] finished tweaking git repo https://github.com/chaudharypraveen98/RustyRustLessons
[INFO] tweaked toml for git repo https://github.com/chaudharypraveen98/RustyRustLessons written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chaudharypraveen98/RustyRustLessons on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chaudharypraveen98/RustyRustLessons 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "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 chaudharypraveen98/RustyRustLessons against try#79452e8441468c5568c20bfca2aa1fe75b645b2d for pr-152210
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fchaudharypraveen98%2FRustyRustLessons" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/chaudharypraveen98/RustyRustLessons
[INFO] finished tweaking git repo https://github.com/chaudharypraveen98/RustyRustLessons
[INFO] tweaked toml for git repo https://github.com/chaudharypraveen98/RustyRustLessons written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/chaudharypraveen98/RustyRustLessons on toolchain 79452e8441468c5568c20bfca2aa1fe75b645b2d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/chaudharypraveen98/RustyRustLessons 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" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54babe4a321229c6139229a56b4945196df925eecd583a61c61f528a99e21430
[INFO] running `Command { std: "docker" "start" "-a" "54babe4a321229c6139229a56b4945196df925eecd583a61c61f528a99e21430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54babe4a321229c6139229a56b4945196df925eecd583a61c61f528a99e21430", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54babe4a321229c6139229a56b4945196df925eecd583a61c61f528a99e21430", kill_on_drop: false }`
[INFO] [stdout] 54babe4a321229c6139229a56b4945196df925eecd583a61c61f528a99e21430
[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@sha256:61361fe0aef631f17e9d025a70c5a647956f8c671dd02950a60ad3f5cc5526d7" "/opt/rustwide/cargo-home/bin/cargo" "+79452e8441468c5568c20bfca2aa1fe75b645b2d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a314278771147fdca03ac3dc41a568802c6cfcee6b37f0e0cd2a95b29aec51bc
[INFO] running `Command { std: "docker" "start" "-a" "a314278771147fdca03ac3dc41a568802c6cfcee6b37f0e0cd2a95b29aec51bc", kill_on_drop: false }`
[INFO] [stderr]     Checking RUST v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: method `foo` is never used
[INFO] [stdout]  --> src/structs_impl_traits.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Foo {
[INFO] [stdout]   |       --- method in this trait
[INFO] [stdout] 8 |     fn foo(&self);
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `foo` is never used
[INFO] [stdout]  --> src/structs_impl_traits.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 7 | trait Foo {
[INFO] [stdout]   |       --- method in this trait
[INFO] [stdout] 8 |     fn foo(&self);
[INFO] [stdout]   |        ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `wagging` is never read
[INFO] [stdout]   --> src/structs_impl_traits.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Dog {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 60 |     hunger: Hunger,
[INFO] [stdout] 61 |     wagging: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `wagging` is never read
[INFO] [stdout]   --> src/structs_impl_traits.rs:61:5
[INFO] [stdout]    |
[INFO] [stdout] 59 | struct Dog {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 60 |     hunger: Hunger,
[INFO] [stdout] 61 |     wagging: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `meowing` is never read
[INFO] [stdout]   --> src/structs_impl_traits.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Cat {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 65 |     hunger: Hunger,
[INFO] [stdout] 66 |     meowing: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `meowing` is never read
[INFO] [stdout]   --> src/structs_impl_traits.rs:66:5
[INFO] [stdout]    |
[INFO] [stdout] 64 | struct Cat {
[INFO] [stdout]    |        --- field in this struct
[INFO] [stdout] 65 |     hunger: Hunger,
[INFO] [stdout] 66 |     meowing: bool,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Hungry` is never used
[INFO] [stdout]   --> src/structs_impl_traits.rs:72:7
[INFO] [stdout]    |
[INFO] [stdout] 72 | trait Hungry {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Hungry` is never used
[INFO] [stdout]   --> src/structs_impl_traits.rs:72:7
[INFO] [stdout]    |
[INFO] [stdout] 72 | trait Hungry {
[INFO] [stdout]    |       ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.04s
[INFO] running `Command { std: "docker" "inspect" "a314278771147fdca03ac3dc41a568802c6cfcee6b37f0e0cd2a95b29aec51bc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a314278771147fdca03ac3dc41a568802c6cfcee6b37f0e0cd2a95b29aec51bc", kill_on_drop: false }`
[INFO] [stdout] a314278771147fdca03ac3dc41a568802c6cfcee6b37f0e0cd2a95b29aec51bc