[INFO] cloning repository https://github.com/fulara/pusz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fulara/pusz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffulara%2Fpusz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffulara%2Fpusz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fff076f613f3a3b1345db9104a8bdd53ad6f756b
[INFO] checking fulara/pusz against master#a5f164faad4a2fed606b8160fd7ecd2d5cbba381 for pr-84920
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffulara%2Fpusz" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/fulara/pusz on toolchain a5f164faad4a2fed606b8160fd7ecd2d5cbba381
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/fulara/pusz
[INFO] finished tweaking git repo https://github.com/fulara/pusz
[INFO] tweaked toml for git repo https://github.com/fulara/pusz written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/fulara/pusz already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] error: the lock file /workspace/builds/worker-7/source/Cargo.lock needs to be updated but --locked was passed to prevent this
[INFO] [stderr] If you want to try to generate the lock file without accessing the network, use the --offline flag.
[INFO] the lockfile is outdated, regenerating it
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "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" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "fetch" "--locked" "--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-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 7ebc8d3ab369596cbc5d8a065b659ac54e2862d093b41edfea9a07d2206c8cf6
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "7ebc8d3ab369596cbc5d8a065b659ac54e2862d093b41edfea9a07d2206c8cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "7ebc8d3ab369596cbc5d8a065b659ac54e2862d093b41edfea9a07d2206c8cf6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7ebc8d3ab369596cbc5d8a065b659ac54e2862d093b41edfea9a07d2206c8cf6", kill_on_drop: false }`
[INFO] [stdout] 7ebc8d3ab369596cbc5d8a065b659ac54e2862d093b41edfea9a07d2206c8cf6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+a5f164faad4a2fed606b8160fd7ecd2d5cbba381" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4036d5e2d3469db90deb9c92c22730eea88161161e831c5c5792706dbd2df584
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4036d5e2d3469db90deb9c92c22730eea88161161e831c5c5792706dbd2df584", kill_on_drop: false }`
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[INFO] [stderr]    Compiling glib-sys v0.9.1
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[INFO] [stderr]    Compiling cairo-sys-rs v0.9.2
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[INFO] [stderr]    Compiling gtk-sys v0.9.2
[INFO] [stderr]     Checking form_urlencoded v1.0.1
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[INFO] [stderr]     Checking iovec v0.1.4
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[INFO] [stderr]     Checking rand v0.4.6
[INFO] [stderr]     Checking rand_os v0.1.3
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[INFO] [stderr]     Checking unicode-normalization v0.1.17
[INFO] [stderr]     Checking bitpacking v0.8.4
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking tantivy-fst v0.1.0
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[INFO] [stderr]     Checking mio v0.6.23
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]     Checking crossbeam-channel v0.4.4
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[INFO] [stderr]     Checking crossbeam-deque v0.8.0
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[INFO] [stderr]     Checking fail v0.3.0
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[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking simplelog v0.7.6
[INFO] [stderr]     Checking atomicwrites v0.2.5
[INFO] [stderr]     Checking tantivy-query-grammar v0.11.0
[INFO] [stderr]    Compiling darling_core v0.10.2
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling darling_macro v0.10.2
[INFO] [stderr]    Compiling futures-macro v0.3.14
[INFO] [stderr]    Compiling darling v0.10.2
[INFO] [stderr]    Compiling derive_builder_core v0.9.0
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking futures-util v0.3.14
[INFO] [stderr]     Checking plugin_interface v0.1.0 (/opt/rustwide/workdir/plugin_interface)
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> plugin_interface/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::any::Any`
[INFO] [stdout]  --> plugin_interface/src/lib.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::any::Any;
[INFO] [stdout]   |     ^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `str`, which is not FFI-safe
[INFO] [stdout]    --> plugin_interface/src/lib.rs:137:55
[INFO] [stdout]     |
[INFO] [stdout] 137 | extern "C" fn load_example(plugin_interface_version : &str) -> Result<Box<dyn Plugin>, String> {
[INFO] [stdout]     |                                                       ^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider using `*const u8` and a length instead
[INFO] [stdout]     = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `str`, which is not FFI-safe
[INFO] [stdout]    --> plugin_interface/src/lib.rs:137:55
[INFO] [stdout]     |
[INFO] [stdout] 137 | extern "C" fn load_example(plugin_interface_version : &str) -> Result<Box<dyn Plugin>, String> {
[INFO] [stdout]     |                                                       ^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider using `*const u8` and a length instead
[INFO] [stdout]     = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Result<Box<dyn Plugin>, String>`, which is not FFI-safe
[INFO] [stdout]    --> plugin_interface/src/lib.rs:137:64
[INFO] [stdout]     |
[INFO] [stdout] 137 | extern "C" fn load_example(plugin_interface_version : &str) -> Result<Box<dyn Plugin>, String> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Result<Box<dyn Plugin>, String>`, which is not FFI-safe
[INFO] [stdout]    --> plugin_interface/src/lib.rs:137:64
[INFO] [stdout]     |
[INFO] [stdout] 137 | extern "C" fn load_example(plugin_interface_version : &str) -> Result<Box<dyn Plugin>, String> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking calc_plugin v0.1.0 (/opt/rustwide/workdir/calc_plugin)
[INFO] [stdout] warning: unused import: `PuszRow`
[INFO] [stdout]  --> calc_plugin/src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use plugin_interface::{PluginResult, PuszRow, PuszRowIdentifier, PuszRowBuilder};
[INFO] [stdout]   |                                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PuszRow`
[INFO] [stdout]  --> calc_plugin/src/lib.rs:2:38
[INFO] [stdout]   |
[INFO] [stdout] 2 | use plugin_interface::{PluginResult, PuszRow, PuszRowIdentifier, PuszRowBuilder};
[INFO] [stdout]   |                                      ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `str`, which is not FFI-safe
[INFO] [stdout]   --> calc_plugin/src/lib.rs:29:51
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[INFO] [stdout]    |                                                   ^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider using `*const u8` and a length instead
[INFO] [stdout]    = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `str`, which is not FFI-safe
[INFO] [stdout]   --> calc_plugin/src/lib.rs:29:51
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[INFO] [stdout]    |                                                   ^^^^ not FFI-safe
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]    = help: consider using `*const u8` and a length instead
[INFO] [stdout]    = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Result<Box<dyn Plugin>, String>`, which is not FFI-safe
[INFO] [stdout]   --> calc_plugin/src/lib.rs:29:60
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Result<Box<dyn plugin_interface::Plugin>, String>`, which is not FFI-safe
[INFO] [stdout]   --> calc_plugin/src/lib.rs:29:60
[INFO] [stdout]    |
[INFO] [stdout] 29 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.14
[INFO] [stderr]     Checking glib v0.9.3
[INFO] [stderr]     Checking futures v0.3.14
[INFO] [stderr]     Checking toml v0.5.8
[INFO] [stderr]     Checking rust-stemmers v1.2.0
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking clipboard_plugin v0.1.0 (/opt/rustwide/workdir/clipboard_plugin)
[INFO] [stdout] warning: unused import: `Metadata`
[INFO] [stdout]  --> clipboard_plugin/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Metadata
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PuszRow`
[INFO] [stdout]   --> clipboard_plugin/src/lib.rs:13:38
[INFO] [stdout]    |
[INFO] [stdout] 13 | use plugin_interface::{PluginResult, PuszRow, PuszRowBuilder, PuszRowIdentifier, PluginEvent, PluginSettings};
[INFO] [stdout]    |                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> clipboard_plugin/src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         ;
[INFO] [stdout]    |         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Metadata`
[INFO] [stdout]  --> clipboard_plugin/src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     Metadata
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `PuszRow`
[INFO] [stdout]   --> clipboard_plugin/src/lib.rs:13:38
[INFO] [stdout]    |
[INFO] [stdout] 13 | use plugin_interface::{PluginResult, PuszRow, PuszRowBuilder, PuszRowIdentifier, PluginEvent, PluginSettings};
[INFO] [stdout]    |                                      ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]   --> clipboard_plugin/src/lib.rs:95:9
[INFO] [stdout]    |
[INFO] [stdout] 95 |         ;
[INFO] [stdout]    |         ^ help: remove this semicolon
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `plugin_interface::*`
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:149:9
[INFO] [stdout]     |
[INFO] [stdout] 149 |     use plugin_interface::*;
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:103:32
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn query_return(&mut self, query : &str) -> PluginResult {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `query`
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:103:32
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn query_return(&mut self, query : &str) -> PluginResult {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_query`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `str`, which is not FFI-safe
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:129:51
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[INFO] [stdout]     |                                                   ^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider using `*const u8` and a length instead
[INFO] [stdout]     = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `str`, which is not FFI-safe
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:129:51
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[INFO] [stdout]     |                                                   ^^^^ not FFI-safe
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(improper_ctypes_definitions)]` on by default
[INFO] [stdout]     = help: consider using `*const u8` and a length instead
[INFO] [stdout]     = note: string slices have no C equivalent
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Result<Box<dyn Plugin>, std::string::String>`, which is not FFI-safe
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:129:60
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` fn uses type `Result<Box<dyn Plugin>, std::string::String>`, which is not FFI-safe
[INFO] [stdout]    --> clipboard_plugin/src/lib.rs:129:60
[INFO] [stdout]     |
[INFO] [stdout] 129 | pub extern "C" fn load(plugin_interface_version : &str) -> Result<Box<dyn plugin_interface::Plugin>, String> {
[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] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 7 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tantivy v0.11.3
[INFO] [stdout] error[E0603]: module `export` is private
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tantivy-0.11.3/src/collector/top_collector.rs:6:12
[INFO] [stdout]     |
[INFO] [stdout] 6   | use serde::export::PhantomData;
[INFO] [stdout]     |            ^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `export` is defined here
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/serde-1.0.125/src/lib.rs:275:5
[INFO] [stdout]     |
[INFO] [stdout] 275 | use self::__private as export;
[INFO] [stdout]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `TScore` is never used
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tantivy-0.11.3/src/collector/custom_score_top_collector.rs:6:58
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct CustomScoreTopCollector<TCustomScorer, TScore = Score> {
[INFO] [stdout]   |                                                          ^^^^^^ unused parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing `TScore`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]   = help: if you intended `TScore` to be a const parameter, use `const TScore: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0392]: parameter `TScore` is never used
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/tantivy-0.11.3/src/collector/tweak_score_top_collector.rs:6:59
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub(crate) struct TweakedScoreTopCollector<TScoreTweaker, TScore = Score> {
[INFO] [stdout]   |                                                           ^^^^^^ unused parameter
[INFO] [stdout]   |
[INFO] [stdout]   = help: consider removing `TScore`, referring to it in a field, or using a marker such as `PhantomData`
[INFO] [stdout]   = help: if you intended `TScore` to be a const parameter, use `const TScore: usize` instead
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0392, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0392`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tantivy`
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "4036d5e2d3469db90deb9c92c22730eea88161161e831c5c5792706dbd2df584", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4036d5e2d3469db90deb9c92c22730eea88161161e831c5c5792706dbd2df584", kill_on_drop: false }`
[INFO] [stdout] 4036d5e2d3469db90deb9c92c22730eea88161161e831c5c5792706dbd2df584