[INFO] cloning repository https://github.com/ilyazub/rutie_test_wrappable_struct
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ilyazub/rutie_test_wrappable_struct" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filyazub%2Frutie_test_wrappable_struct", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filyazub%2Frutie_test_wrappable_struct'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 864fbbf390f542e39f86f3c3a6a28f77477e635e
[INFO] checking ilyazub/rutie_test_wrappable_struct against master#ddaf12390d3ffb7d5ba74491a48f3cd528e5d777 for pr-146504
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Filyazub%2Frutie_test_wrappable_struct" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/ilyazub/rutie_test_wrappable_struct
[INFO] finished tweaking git repo https://github.com/ilyazub/rutie_test_wrappable_struct
[INFO] tweaked toml for git repo https://github.com/ilyazub/rutie_test_wrappable_struct written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/ilyazub/rutie_test_wrappable_struct on toolchain ddaf12390d3ffb7d5ba74491a48f3cd528e5d777
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ddaf12390d3ffb7d5ba74491a48f3cd528e5d777" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/ilyazub/rutie_test_wrappable_struct 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" "+ddaf12390d3ffb7d5ba74491a48f3cd528e5d777" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rutie v0.8.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddaf12390d3ffb7d5ba74491a48f3cd528e5d777" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] de254d2fc094ed549d00629354aa0a9f85c906851c0bf937445a959195a30e31
[INFO] running `Command { std: "docker" "start" "-a" "de254d2fc094ed549d00629354aa0a9f85c906851c0bf937445a959195a30e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "de254d2fc094ed549d00629354aa0a9f85c906851c0bf937445a959195a30e31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "de254d2fc094ed549d00629354aa0a9f85c906851c0bf937445a959195a30e31", kill_on_drop: false }`
[INFO] [stdout] de254d2fc094ed549d00629354aa0a9f85c906851c0bf937445a959195a30e31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ddaf12390d3ffb7d5ba74491a48f3cd528e5d777" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf7636bb7536199cc801b8395ab63b6fc7ba397855220dcb4c7268b3ec26a39e
[INFO] running `Command { std: "docker" "start" "-a" "cf7636bb7536199cc801b8395ab63b6fc7ba397855220dcb4c7268b3ec26a39e", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.112
[INFO] [stderr]    Compiling rutie v0.8.3
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking rutie_test_wrappable_struct v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `rtself`
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     rtself,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `rtself` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / methods!(
[INFO] [stdout] 25 | |     RubyClassWithLifetime,
[INFO] [stdout] 26 | |     rtself,
[INFO] [stdout] 27 | |     fn pub_node_with_lifetime_new(text: RString) -> RubyClassWithLifetime {
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |     },
[INFO] [stdout] 39 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `methods` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `rutie::RString`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:34:41
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn pub_node_with_lifetime_text() -> RString {
[INFO] [stdout]    |                                         ^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `rtself`
[INFO] [stdout]   --> src/lib.rs:26:5
[INFO] [stdout]    |
[INFO] [stdout] 26 |     rtself,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: `rtself` is captured in macro and introduced a unused variable
[INFO] [stdout]   --> src/lib.rs:24:1
[INFO] [stdout]    |
[INFO] [stdout] 24 | / methods!(
[INFO] [stdout] 25 | |     RubyClassWithLifetime,
[INFO] [stdout] 26 | |     rtself,
[INFO] [stdout] 27 | |     fn pub_node_with_lifetime_new(text: RString) -> RubyClassWithLifetime {
[INFO] [stdout] ...  |
[INFO] [stdout] 38 | |     },
[INFO] [stdout] 39 | | );
[INFO] [stdout]    | |_^
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout]    = note: this warning originates in the macro `methods` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `rutie::RString`, which is not FFI-safe
[INFO] [stdout]   --> src/lib.rs:34:41
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn pub_node_with_lifetime_text() -> RString {
[INFO] [stdout]    |                                         ^^^^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct
[INFO] [stdout]    = note: this struct has unspecified layout
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.63s
[INFO] running `Command { std: "docker" "inspect" "cf7636bb7536199cc801b8395ab63b6fc7ba397855220dcb4c7268b3ec26a39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf7636bb7536199cc801b8395ab63b6fc7ba397855220dcb4c7268b3ec26a39e", kill_on_drop: false }`
[INFO] [stdout] cf7636bb7536199cc801b8395ab63b6fc7ba397855220dcb4c7268b3ec26a39e