[INFO] fetching crate plugger 0.3.0...
[INFO] testing plugger-0.3.0 against 1.59.0 for beta-1.60-1
[INFO] extracting crate plugger 0.3.0 into /workspace/builds/worker-104/source
[INFO] validating manifest of crates.io crate plugger 0.3.0 on toolchain 1.59.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plugger 0.3.0
[INFO] finished tweaking crates.io crate plugger 0.3.0
[INFO] tweaked toml for crates.io crate plugger 0.3.0 written to /workspace/builds/worker-104/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.59.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plugger-ruby v0.3.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4896e2586f62fafe251712ae583ce913563e1da948fb295e35e349bf1ecea26
[INFO] running `Command { std: "docker" "start" "-a" "f4896e2586f62fafe251712ae583ce913563e1da948fb295e35e349bf1ecea26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4896e2586f62fafe251712ae583ce913563e1da948fb295e35e349bf1ecea26", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4896e2586f62fafe251712ae583ce913563e1da948fb295e35e349bf1ecea26", kill_on_drop: false }`
[INFO] [stdout] f4896e2586f62fafe251712ae583ce913563e1da948fb295e35e349bf1ecea26
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-104/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=warn" "-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@sha256:0cd99ca24d8e8c98e67c542213511d985b8778b5bdcbb160e038429496686047" "/opt/rustwide/cargo-home/bin/cargo" "+1.59.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06e403ad6a112f6eccb47f8ee50efb7c9d95f5189354c8fb8ae69659b18b21c9
[INFO] running `Command { std: "docker" "start" "-a" "06e403ad6a112f6eccb47f8ee50efb7c9d95f5189354c8fb8ae69659b18b21c9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling lazy_static v0.2.11
[INFO] [stderr]    Compiling plugger-core v0.3.0
[INFO] [stderr]    Compiling mri-sys v0.2.5
[INFO] [stderr]    Compiling rurust v0.1.11
[INFO] [stderr]    Compiling plugger-ruby v0.3.0
[INFO] [stdout] error[E0624]: associated function `new` is private
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/plugger-ruby-0.3.0/src/lib.rs:41:27
[INFO] [stdout]    |
[INFO] [stdout] 41 |         match rurust::VM::new() {
[INFO] [stdout]    |                           ^^^ private associated function
[INFO] [stdout]    |
[INFO] [stdout]   ::: /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/rurust-0.1.11/src/vm.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     fn new() -> Result<Self, ErrorKind> {
[INFO] [stdout]    |     ----------------------------------- private associated function defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0624`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `plugger-ruby` due to 2 previous errors
[INFO] running `Command { std: "docker" "inspect" "06e403ad6a112f6eccb47f8ee50efb7c9d95f5189354c8fb8ae69659b18b21c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06e403ad6a112f6eccb47f8ee50efb7c9d95f5189354c8fb8ae69659b18b21c9", kill_on_drop: false }`
[INFO] [stdout] 06e403ad6a112f6eccb47f8ee50efb7c9d95f5189354c8fb8ae69659b18b21c9