[INFO] fetching crate message_plugins 0.2.0...
[INFO] testing message_plugins-0.2.0 against 1.91.0 for beta-1.92-2
[INFO] extracting crate message_plugins 0.2.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate message_plugins 0.2.0
[INFO] finished tweaking crates.io crate message_plugins 0.2.0
[INFO] tweaked toml for crates.io crate message_plugins 0.2.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate message_plugins 0.2.0 on toolchain 1.91.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 31 packages to latest compatible versions
[INFO] [stderr]       Adding libloading v0.6.7 (available: v0.8.9)
[INFO] [stderr]       Adding tokio v0.2.25 (available: v1.48.0)
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.91.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f4fad6f39c11ba834f5a8bdef5060f65380e674c621a52c86062aa6ac732e885
[INFO] running `Command { std: "docker" "start" "-a" "f4fad6f39c11ba834f5a8bdef5060f65380e674c621a52c86062aa6ac732e885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f4fad6f39c11ba834f5a8bdef5060f65380e674c621a52c86062aa6ac732e885", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f4fad6f39c11ba834f5a8bdef5060f65380e674c621a52c86062aa6ac732e885", kill_on_drop: false }`
[INFO] [stdout] f4fad6f39c11ba834f5a8bdef5060f65380e674c621a52c86062aa6ac732e885
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 372484105f8e09132bf6196ae52a568388167daec0267024526cab430cae0a40
[INFO] running `Command { std: "docker" "start" "-a" "372484105f8e09132bf6196ae52a568388167daec0267024526cab430cae0a40", kill_on_drop: false }`
[INFO] [stderr]    Compiling libloading v0.6.7
[INFO] [stderr]    Compiling message_plugins v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: references are not nullable, so checking them for null will always return false
[INFO] [stdout]    --> src/lib.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |         if ((*instance.as_ptr()).as_ref() as *const dyn Plugin<T>).is_null() {
[INFO] [stdout]     |            ^-----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             expression has type `&dyn Plugin<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Option<&dyn Any>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:256:29
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub type FfiPluginInit<T> = unsafe extern "C" fn(*mut Box<dyn Plugin<T>>, Option<&dyn Any>);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.34s
[INFO] running `Command { std: "docker" "inspect" "372484105f8e09132bf6196ae52a568388167daec0267024526cab430cae0a40", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "372484105f8e09132bf6196ae52a568388167daec0267024526cab430cae0a40", kill_on_drop: false }`
[INFO] [stdout] 372484105f8e09132bf6196ae52a568388167daec0267024526cab430cae0a40
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d3248b29dde8384456557c098ffe181670ef827c78d8f76279a7a0cecc284fe
[INFO] running `Command { std: "docker" "start" "-a" "3d3248b29dde8384456557c098ffe181670ef827c78d8f76279a7a0cecc284fe", kill_on_drop: false }`
[INFO] [stdout] warning: references are not nullable, so checking them for null will always return false
[INFO] [stdout]    --> src/lib.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |         if ((*instance.as_ptr()).as_ref() as *const dyn Plugin<T>).is_null() {
[INFO] [stdout]     |            ^-----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             expression has type `&dyn Plugin<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Option<&dyn Any>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:256:29
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub type FfiPluginInit<T> = unsafe extern "C" fn(*mut Box<dyn Plugin<T>>, Option<&dyn Any>);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling message_plugins v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: references are not nullable, so checking them for null will always return false
[INFO] [stdout]    --> src/lib.rs:220:12
[INFO] [stdout]     |
[INFO] [stdout] 220 |         if ((*instance.as_ptr()).as_ref() as *const dyn Plugin<T>).is_null() {
[INFO] [stdout]     |            ^-----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             expression has type `&dyn Plugin<T>`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Option<&dyn Any>`, which is not FFI-safe
[INFO] [stdout]    --> src/lib.rs:256:29
[INFO] [stdout]     |
[INFO] [stdout] 256 | pub type FfiPluginInit<T> = unsafe extern "C" fn(*mut Box<dyn Plugin<T>>, Option<&dyn Any>);
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stdout]     = note: enum has no representation hint
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.35s
[INFO] running `Command { std: "docker" "inspect" "3d3248b29dde8384456557c098ffe181670ef827c78d8f76279a7a0cecc284fe", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d3248b29dde8384456557c098ffe181670ef827c78d8f76279a7a0cecc284fe", kill_on_drop: false }`
[INFO] [stdout] 3d3248b29dde8384456557c098ffe181670ef827c78d8f76279a7a0cecc284fe
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=warn" "-e" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+1.91.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] ff12a645e92838cfcc6a66bbd6d8b5d4e81d966499686cb490d79eb6f81a08fc
[INFO] running `Command { std: "docker" "start" "-a" "ff12a645e92838cfcc6a66bbd6d8b5d4e81d966499686cb490d79eb6f81a08fc", kill_on_drop: false }`
[INFO] [stderr] warning: references are not nullable, so checking them for null will always return false
[INFO] [stderr]    --> src/lib.rs:220:12
[INFO] [stderr]     |
[INFO] [stderr] 220 |         if ((*instance.as_ptr()).as_ref() as *const dyn Plugin<T>).is_null() {
[INFO] [stderr]     |            ^-----------------------------^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             expression has type `&dyn Plugin<T>`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(useless_ptr_null_checks)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `extern` fn uses type `Option<&dyn Any>`, which is not FFI-safe
[INFO] [stderr]    --> src/lib.rs:256:29
[INFO] [stderr]     |
[INFO] [stderr] 256 | pub type FfiPluginInit<T> = unsafe extern "C" fn(*mut Box<dyn Plugin<T>>, Option<&dyn Any>);
[INFO] [stderr]     |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ not FFI-safe
[INFO] [stderr]     |
[INFO] [stderr]     = help: consider adding a `#[repr(C)]`, `#[repr(transparent)]`, or integer `#[repr(...)]` attribute to this enum
[INFO] [stderr]     = note: enum has no representation hint
[INFO] [stderr]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `message_plugins` (lib) generated 2 warnings
[INFO] [stderr] warning: `message_plugins` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stderr]      Running unittests src/lib.rs (/opt/rustwide/target/debug/deps/message_plugins-19a99256a866b498)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests message_plugins
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test src/lib.rs - construct_plugin (line 230) ... FAILED
[INFO] [stdout] test src/lib.rs - construct_plugin_with_constructor (line 204) ... FAILED
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout] 
[INFO] [stdout] ---- src/lib.rs - construct_plugin (line 230) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `Plugin` in this scope
[INFO] [stdout]  --> src/lib.rs:232:59
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe extern "C" fn plugin_constructor(ptr: *mut Box<dyn Plugin<YourMessageType>>) {
[INFO] [stdout]   |                                                           ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use message_plugins::Plugin;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `YourMessageType` in this scope
[INFO] [stdout]  --> src/lib.rs:232:66
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe extern "C" fn plugin_constructor(ptr: *mut Box<dyn Plugin<YourMessageType>>) {
[INFO] [stdout]   |                                                                  ^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe extern "C" fn plugin_constructor<YourMessageType>(ptr: *mut Box<dyn Plugin<YourMessageType>>) {
[INFO] [stdout]   |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `YourPlugin`
[INFO] [stdout]  --> src/lib.rs:233:27
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let plugin = Box::new(YourPlugin::new());
[INFO] [stdout]   |                           ^^^^^^^^^^ use of undeclared type `YourPlugin`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `insert_instace` in this scope
[INFO] [stdout]  --> src/lib.rs:234:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     insert_instace(ptr, plugin);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] ---- src/lib.rs - construct_plugin_with_constructor (line 204) stdout ----
[INFO] [stdout] error[E0405]: cannot find trait `Plugin` in this scope
[INFO] [stdout]  --> src/lib.rs:206:59
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe extern "C" fn plugin_constructor(ptr: *mut Box<dyn Plugin<YourMessageType>>) {
[INFO] [stdout]   |                                                           ^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this trait
[INFO] [stdout]   |
[INFO] [stdout] 2 + use message_plugins::Plugin;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `YourMessageType` in this scope
[INFO] [stdout]  --> src/lib.rs:206:66
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe extern "C" fn plugin_constructor(ptr: *mut Box<dyn Plugin<YourMessageType>>) {
[INFO] [stdout]   |                                                                  ^^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: you might be missing a type parameter
[INFO] [stdout]   |
[INFO] [stdout] 4 | unsafe extern "C" fn plugin_constructor<YourMessageType>(ptr: *mut Box<dyn Plugin<YourMessageType>>) {
[INFO] [stdout]   |                                        +++++++++++++++++
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `YourPlugin`
[INFO] [stdout]  --> src/lib.rs:207:27
[INFO] [stdout]   |
[INFO] [stdout] 5 |     let plugin = Box::new(YourPlugin::new());
[INFO] [stdout]   |                           ^^^^^^^^^^ use of undeclared type `YourPlugin`
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `insert_instace` in this scope
[INFO] [stdout]  --> src/lib.rs:208:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     insert_instace(ptr, plugin);
[INFO] [stdout]   |     ^^^^^^^^^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0433.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] Couldn't compile the test.
[INFO] [stdout] 
[INFO] [stdout] failures:
[INFO] [stdout]     src/lib.rs - construct_plugin (line 230)
[INFO] [stdout]     src/lib.rs - construct_plugin_with_constructor (line 204)
[INFO] [stdout] 
[INFO] [stdout] test result: FAILED. 0 passed; 2 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.15s
[INFO] [stdout] 
[INFO] [stderr] error: doctest failed, to rerun pass `--doc`
[INFO] running `Command { std: "docker" "inspect" "ff12a645e92838cfcc6a66bbd6d8b5d4e81d966499686cb490d79eb6f81a08fc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ff12a645e92838cfcc6a66bbd6d8b5d4e81d966499686cb490d79eb6f81a08fc", kill_on_drop: false }`
[INFO] [stdout] ff12a645e92838cfcc6a66bbd6d8b5d4e81d966499686cb490d79eb6f81a08fc
