[INFO] cloning repository https://github.com/emirsassan/plugin-system
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/emirsassan/plugin-system" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femirsassan%2Fplugin-system", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femirsassan%2Fplugin-system'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 23e33787528a090ef54a301f1d400aa731dad5b5
[INFO] testing emirsassan/plugin-system against try#0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6 for pr-137122-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Femirsassan%2Fplugin-system" "/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/emirsassan/plugin-system
[INFO] finished tweaking git repo https://github.com/emirsassan/plugin-system
[INFO] tweaked toml for git repo https://github.com/emirsassan/plugin-system written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/emirsassan/plugin-system on toolchain 0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/emirsassan/plugin-system 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" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 39641e03ee04f48603fc5ddafd73f0e2628d4366762dd8ace54fd58fc5234cd3
[INFO] running `Command { std: "docker" "start" "-a" "39641e03ee04f48603fc5ddafd73f0e2628d4366762dd8ace54fd58fc5234cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "39641e03ee04f48603fc5ddafd73f0e2628d4366762dd8ace54fd58fc5234cd3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "39641e03ee04f48603fc5ddafd73f0e2628d4366762dd8ace54fd58fc5234cd3", kill_on_drop: false }`
[INFO] [stdout] 39641e03ee04f48603fc5ddafd73f0e2628d4366762dd8ace54fd58fc5234cd3
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0eb87453d8294bdae32e662ff47cafb33189234d39baf157200eddac2942b378
[INFO] running `Command { std: "docker" "start" "-a" "0eb87453d8294bdae32e662ff47cafb33189234d39baf157200eddac2942b378", kill_on_drop: false }`
[INFO] [stderr]    Compiling api v0.1.0 (/opt/rustwide/workdir/api)
[INFO] [stderr]    Compiling cfg-if v1.0.1
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling hello v0.1.0 (/opt/rustwide/workdir/plugins/hello)
[INFO] [stderr]    Compiling host v0.1.0 (/opt/rustwide/workdir/host)
[INFO] [stdout] warning: `extern` fn uses type `dyn Plugin`, which is not FFI-safe
[INFO] [stdout]  --> host/src/main.rs:6:25
[INFO] [stdout]   |
[INFO] [stdout] 6 | type PluginCreateFunc = unsafe extern "C" fn() -> *mut dyn Plugin;
[INFO] [stdout]   |                         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]   |
[INFO] [stdout]   = note: trait objects have no C equivalent
[INFO] [stdout]   = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 1.02s
[INFO] running `Command { std: "docker" "inspect" "0eb87453d8294bdae32e662ff47cafb33189234d39baf157200eddac2942b378", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0eb87453d8294bdae32e662ff47cafb33189234d39baf157200eddac2942b378", kill_on_drop: false }`
[INFO] [stdout] 0eb87453d8294bdae32e662ff47cafb33189234d39baf157200eddac2942b378
[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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+0936b3db0ae648ba2d5b60eb08cf4faf2ddab0c6" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: mkdir /var/lib/docker/overlay2/bc109bf067a22df812b1387f30b27c56b60804fc8d248f967c9eb76b9499ea72-init: no space left on device