[INFO] cloning repository https://github.com/robotlovesyou/ronky
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/robotlovesyou/ronky" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobotlovesyou%2Fronky", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobotlovesyou%2Fronky'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 90d50f741cc417daeb16de2b3f014c9c255a834e
[INFO] checking robotlovesyou/ronky against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobotlovesyou%2Fronky" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/robotlovesyou/ronky
[INFO] finished tweaking git repo https://github.com/robotlovesyou/ronky
[INFO] tweaked toml for git repo https://github.com/robotlovesyou/ronky written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robotlovesyou/ronky on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/robotlovesyou/ronky 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" "+95813608313bff49cfc1afc393a946a3c085b772" "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 robotlovesyou/ronky against try#95813608313bff49cfc1afc393a946a3c085b772 for pr-148946
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frobotlovesyou%2Fronky" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/robotlovesyou/ronky
[INFO] finished tweaking git repo https://github.com/robotlovesyou/ronky
[INFO] tweaked toml for git repo https://github.com/robotlovesyou/ronky written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/robotlovesyou/ronky on toolchain 95813608313bff49cfc1afc393a946a3c085b772
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/robotlovesyou/ronky 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" "+95813608313bff49cfc1afc393a946a3c085b772" "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-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 6342227a0ad17e39c9ca700d746a58b0d24b5b591dc910f11cc79fbf1f2451bb
[INFO] running `Command { std: "docker" "start" "-a" "6342227a0ad17e39c9ca700d746a58b0d24b5b591dc910f11cc79fbf1f2451bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "6342227a0ad17e39c9ca700d746a58b0d24b5b591dc910f11cc79fbf1f2451bb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6342227a0ad17e39c9ca700d746a58b0d24b5b591dc910f11cc79fbf1f2451bb", kill_on_drop: false }`
[INFO] [stdout] 6342227a0ad17e39c9ca700d746a58b0d24b5b591dc910f11cc79fbf1f2451bb
[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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+95813608313bff49cfc1afc393a946a3c085b772" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b6b03da486c5905ddbbc2a2e0f617a90e39f2ac098fc0a888cd2041726e52d7d
[INFO] running `Command { std: "docker" "start" "-a" "b6b03da486c5905ddbbc2a2e0f617a90e39f2ac098fc0a888cd2041726e52d7d", kill_on_drop: false }`
[INFO] [stderr]    Compiling unindent v0.1.7
[INFO] [stderr]    Compiling indoc v1.0.3
[INFO] [stderr]     Checking ronky v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: trait `Node` is never used
[INFO] [stdout]   --> src/ast/mod.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | trait Node: Display {
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullValue` is never constructed
[INFO] [stdout]  --> src/object/null.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NullValue;
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Node` is never used
[INFO] [stdout]   --> src/ast/mod.rs:41:7
[INFO] [stdout]    |
[INFO] [stdout] 41 | trait Node: Display {
[INFO] [stdout]    |       ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `NullValue` is never constructed
[INFO] [stdout]  --> src/object/null.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct NullValue;
[INFO] [stdout]   |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.67s
[INFO] running `Command { std: "docker" "inspect" "b6b03da486c5905ddbbc2a2e0f617a90e39f2ac098fc0a888cd2041726e52d7d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b6b03da486c5905ddbbc2a2e0f617a90e39f2ac098fc0a888cd2041726e52d7d", kill_on_drop: false }`
[INFO] [stdout] b6b03da486c5905ddbbc2a2e0f617a90e39f2ac098fc0a888cd2041726e52d7d