[INFO] cloning repository https://github.com/arusland/rs-plugin
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arusland/rs-plugin" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farusland%2Frs-plugin", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farusland%2Frs-plugin'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] af1c9abc7e5e35d97d52eb312d60d189882b5021
[INFO] checking arusland/rs-plugin against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farusland%2Frs-plugin" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/arusland/rs-plugin
[INFO] finished tweaking git repo https://github.com/arusland/rs-plugin
[INFO] tweaked toml for git repo https://github.com/arusland/rs-plugin written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/arusland/rs-plugin on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/arusland/rs-plugin 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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "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 arusland/rs-plugin against try#b152f5575a2ac7126ae0019e4e679abe9399213e for pr-157841
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farusland%2Frs-plugin" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/arusland/rs-plugin
[INFO] finished tweaking git repo https://github.com/arusland/rs-plugin
[INFO] tweaked toml for git repo https://github.com/arusland/rs-plugin written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/arusland/rs-plugin on toolchain b152f5575a2ac7126ae0019e4e679abe9399213e
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/arusland/rs-plugin 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" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "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-3-tc2/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:3e793bdf10248eb2ddbd6b0faebed8155c11b4589982e2893733958d93e8d540" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e
[INFO] running `Command { std: "docker" "start" "a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e" "/opt/rustwide/cargo-home/bin/cargo" "+b152f5575a2ac7126ae0019e4e679abe9399213e" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]     Checking shared v0.1.0 (/opt/rustwide/workdir/shared)
[INFO] [stderr]     Checking libloading v0.8.9
[INFO] [stderr]     Checking reverse_plugin v0.1.0 (/opt/rustwide/workdir/plugin)
[INFO] [stdout] warning: unused imports: `CREATE_PLUGIN_SYMBOL` and `CreatePluginFn`
[INFO] [stdout]  --> plugin/src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shared::{CreatePluginFn, Plugin, CREATE_PLUGIN_SYMBOL};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `CREATE_PLUGIN_SYMBOL` and `CreatePluginFn`
[INFO] [stdout]  --> plugin/src/lib.rs:1:14
[INFO] [stdout]   |
[INFO] [stdout] 1 | use shared::{CreatePluginFn, Plugin, CREATE_PLUGIN_SYMBOL};
[INFO] [stdout]   |              ^^^^^^^^^^^^^^          ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Box<dyn Plugin>`, which is not FFI-safe
[INFO] [stdout]   --> plugin/src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub extern "C" fn create_plugin() -> Box<dyn Plugin> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: box cannot be represented as a single pointer
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Box<dyn Plugin>`, which is not FFI-safe
[INFO] [stdout]   --> plugin/src/lib.rs:27:38
[INFO] [stdout]    |
[INFO] [stdout] 27 | pub extern "C" fn create_plugin() -> Box<dyn Plugin> {
[INFO] [stdout]    |                                      ^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: box cannot be represented as a single pointer
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking main-program v0.1.0 (/opt/rustwide/workdir/main-program)
[INFO] [stdout] warning: unused import: `Plugin`
[INFO] [stdout]  --> main-program/src/main.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | use shared::{CreatePluginFn, Plugin, CREATE_PLUGIN_SYMBOL};
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Plugin`
[INFO] [stdout]  --> main-program/src/main.rs:2:30
[INFO] [stdout]   |
[INFO] [stdout] 2 | use shared::{CreatePluginFn, Plugin, CREATE_PLUGIN_SYMBOL};
[INFO] [stdout]   |                              ^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e", kill_on_drop: false }`
[INFO] [stdout] a34cd25c2d54515ca1a54fedab40f3af06dc3c295b4eae7e349cb9b57d52043e
