[INFO] fetching crate glusterchangelog 0.1.2... [INFO] testing glusterchangelog-0.1.2 against master#5d5ff84130da0d74c6ece368dbe821d8f83fa526 for pr-79296 [INFO] extracting crate glusterchangelog 0.1.2 into /workspace/builds/worker-7/source [INFO] validating manifest of crates.io crate glusterchangelog 0.1.2 on toolchain 5d5ff84130da0d74c6ece368dbe821d8f83fa526 [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] started tweaking crates.io crate glusterchangelog 0.1.2 [INFO] finished tweaking crates.io crate glusterchangelog 0.1.2 [INFO] tweaked toml for crates.io crate glusterchangelog 0.1.2 written to /workspace/builds/worker-7/source/Cargo.toml [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }` [INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }` [INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other binary targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a binary target: [INFO] [stderr] [INFO] [stderr] * /workspace/builds/worker-7/source/src/main.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autobins = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: path `/workspace/builds/worker-7/source/src/main.rs` was erroneously implicitly accepted for binary `glusterchangelogparser`, [INFO] [stderr] please set bin.path in Cargo.toml [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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }` [INFO] [stdout] 9a2b5f77041fa18dc3f63121fab2bf9633fc610a19304013d29276fbfc487d46 [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" "9a2b5f77041fa18dc3f63121fab2bf9633fc610a19304013d29276fbfc487d46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "inspect" "9a2b5f77041fa18dc3f63121fab2bf9633fc610a19304013d29276fbfc487d46", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "9a2b5f77041fa18dc3f63121fab2bf9633fc610a19304013d29276fbfc487d46", kill_on_drop: false }` [INFO] [stdout] 9a2b5f77041fa18dc3f63121fab2bf9633fc610a19304013d29276fbfc487d46 [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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "build" "--frozen" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] dcf07eb513770363d61e81a7f41d642c8a37f4cf5453ea9b85facb80e3babdd0 [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" "dcf07eb513770363d61e81a7f41d642c8a37f4cf5453ea9b85facb80e3babdd0", kill_on_drop: false }` [INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other binary targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a binary target: [INFO] [stderr] [INFO] [stderr] * /opt/rustwide/workdir/src/main.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autobins = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: path `/opt/rustwide/workdir/src/main.rs` was erroneously implicitly accepted for binary `glusterchangelogparser`, [INFO] [stderr] please set bin.path in Cargo.toml [INFO] [stderr] Compiling glusterchangelog v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: `extern` fn uses type `String`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:20:31 [INFO] [stdout] | [INFO] [stdout] 20 | pub extern fn parse(filename: String, [INFO] [stdout] | ^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [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] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `for<'r, 's> fn(&'r Record<'s>)`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:21:31 [INFO] [stdout] | [INFO] [stdout] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider using an `extern fn(...) -> ...` function pointer instead [INFO] [stdout] = note: this function pointer has Rust-specific calling convention [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), std::io::Error>`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:21:56 [INFO] [stdout] | [INFO] [stdout] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [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] Finished dev [unoptimized + debuginfo] target(s) in 1.73s [INFO] running `Command { std: "docker" "inspect" "dcf07eb513770363d61e81a7f41d642c8a37f4cf5453ea9b85facb80e3babdd0", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "dcf07eb513770363d61e81a7f41d642c8a37f4cf5453ea9b85facb80e3babdd0", kill_on_drop: false }` [INFO] [stdout] dcf07eb513770363d61e81a7f41d642c8a37f4cf5453ea9b85facb80e3babdd0 [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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }` [INFO] [stdout] 726f356463c0487031d8a94c5b2da6bc1c9349cbb23b93b5b90074f3cc5d79af [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" "726f356463c0487031d8a94c5b2da6bc1c9349cbb23b93b5b90074f3cc5d79af", kill_on_drop: false }` [INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other binary targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a binary target: [INFO] [stderr] [INFO] [stderr] * /opt/rustwide/workdir/src/main.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autobins = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: path `/opt/rustwide/workdir/src/main.rs` was erroneously implicitly accepted for binary `glusterchangelogparser`, [INFO] [stderr] please set bin.path in Cargo.toml [INFO] [stdout] warning: `extern` fn uses type `String`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:20:31 [INFO] [stdout] | [INFO] [stdout] 20 | pub extern fn parse(filename: String, [INFO] [stdout] | ^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [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] [INFO] [stdout] [INFO] [stderr] Compiling glusterchangelog v0.1.2 (/opt/rustwide/workdir) [INFO] [stdout] warning: `extern` fn uses type `for<'r, 's> fn(&'r Record<'s>)`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:21:31 [INFO] [stdout] | [INFO] [stdout] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider using an `extern fn(...) -> ...` function pointer instead [INFO] [stdout] = note: this function pointer has Rust-specific calling convention [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), std::io::Error>`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:21:56 [INFO] [stdout] | [INFO] [stdout] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [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 `String`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:20:31 [INFO] [stdout] | [INFO] [stdout] 20 | pub extern fn parse(filename: String, [INFO] [stdout] | ^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = note: `#[warn(improper_ctypes_definitions)]` on by default [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] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `for<'r, 's> fn(&'r Record<'s>)`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:21:31 [INFO] [stdout] | [INFO] [stdout] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [INFO] [stdout] | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stdout] | [INFO] [stdout] = help: consider using an `extern fn(...) -> ...` function pointer instead [INFO] [stdout] = note: this function pointer has Rust-specific calling convention [INFO] [stdout] [INFO] [stdout] [INFO] [stdout] warning: `extern` fn uses type `std::result::Result<(), std::io::Error>`, which is not FFI-safe [INFO] [stdout] --> src/lib.rs:21:56 [INFO] [stdout] | [INFO] [stdout] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [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] Finished test [unoptimized + debuginfo] target(s) in 1.88s [INFO] running `Command { std: "docker" "inspect" "726f356463c0487031d8a94c5b2da6bc1c9349cbb23b93b5b90074f3cc5d79af", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "726f356463c0487031d8a94c5b2da6bc1c9349cbb23b93b5b90074f3cc5d79af", kill_on_drop: false }` [INFO] [stdout] 726f356463c0487031d8a94c5b2da6bc1c9349cbb23b93b5b90074f3cc5d79af [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" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+5d5ff84130da0d74c6ece368dbe821d8f83fa526" "test" "--frozen", kill_on_drop: false }` [INFO] [stdout] 1bbaa221ca295e6dd60614ae36da608e9a13d124486a1c0f9420fcc3c11725ad [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" "1bbaa221ca295e6dd60614ae36da608e9a13d124486a1c0f9420fcc3c11725ad", kill_on_drop: false }` [INFO] [stderr] warning: An explicit [[bin]] section is specified in Cargo.toml which currently [INFO] [stderr] disables Cargo from automatically inferring other binary targets. [INFO] [stderr] This inference behavior will change in the Rust 2018 edition and the following [INFO] [stderr] files will be included as a binary target: [INFO] [stderr] [INFO] [stderr] * /opt/rustwide/workdir/src/main.rs [INFO] [stderr] [INFO] [stderr] This is likely to break cargo build or cargo test as these files may not be [INFO] [stderr] ready to be compiled as a binary target today. You can future-proof yourself [INFO] [stderr] and disable this warning by adding `autobins = false` to your [package] [INFO] [stderr] section. You may also move the files to a location where Cargo would not [INFO] [stderr] automatically infer them to be a target, such as in subfolders. [INFO] [stderr] [INFO] [stderr] For more information on this warning you can consult [INFO] [stderr] https://github.com/rust-lang/cargo/issues/5330 [INFO] [stderr] warning: path `/opt/rustwide/workdir/src/main.rs` was erroneously implicitly accepted for binary `glusterchangelogparser`, [INFO] [stderr] please set bin.path in Cargo.toml [INFO] [stdout] [INFO] [stderr] warning: `extern` fn uses type `String`, which is not FFI-safe [INFO] [stdout] running 0 tests [INFO] [stderr] --> src/lib.rs:20:31 [INFO] [stdout] [INFO] [stderr] | [INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out [INFO] [stderr] 20 | pub extern fn parse(filename: String, [INFO] [stdout] [INFO] [stderr] | ^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stderr] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stderr] = note: this struct has unspecified layout [INFO] [stderr] [INFO] [stderr] warning: `extern` fn uses type `for<'r, 's> fn(&'r Record<'s>)`, which is not FFI-safe [INFO] [stderr] --> src/lib.rs:21:31 [INFO] [stderr] | [INFO] [stderr] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = help: consider using an `extern fn(...) -> ...` function pointer instead [INFO] [stderr] = note: this function pointer has Rust-specific calling convention [INFO] [stderr] [INFO] [stderr] warning: `extern` fn uses type `std::result::Result<(), std::io::Error>`, which is not FFI-safe [INFO] [stderr] --> src/lib.rs:21:56 [INFO] [stderr] | [INFO] [stderr] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [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] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] warning: `extern` fn uses type `String`, which is not FFI-safe [INFO] [stderr] --> src/lib.rs:20:31 [INFO] [stderr] | [INFO] [stderr] 20 | pub extern fn parse(filename: String, [INFO] [stderr] | ^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = note: `#[warn(improper_ctypes_definitions)]` on by default [INFO] [stderr] = help: consider adding a `#[repr(C)]` or `#[repr(transparent)]` attribute to this struct [INFO] [stderr] = note: this struct has unspecified layout [INFO] [stderr] [INFO] [stderr] warning: `extern` fn uses type `for<'r, 's> fn(&'r Record<'s>)`, which is not FFI-safe [INFO] [stderr] --> src/lib.rs:21:31 [INFO] [stderr] | [INFO] [stderr] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [INFO] [stderr] | ^^^^^^^^^^^^^^^^^^^^ not FFI-safe [INFO] [stderr] | [INFO] [stderr] = help: consider using an `extern fn(...) -> ...` function pointer instead [INFO] [stderr] = note: this function pointer has Rust-specific calling convention [INFO] [stderr] [INFO] [stderr] warning: `extern` fn uses type `std::result::Result<(), std::io::Error>`, which is not FFI-safe [INFO] [stderr] --> src/lib.rs:21:56 [INFO] [stderr] | [INFO] [stderr] 21 | callback: fn (record: &Record)) -> Result<(), io::Error>{ [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] [INFO] [stderr] warning: 3 warnings emitted [INFO] [stderr] [INFO] [stderr] Finished test [unoptimized + debuginfo] target(s) in 0.03s [INFO] [stderr] Running /opt/rustwide/target/debug/deps/glusterchangelog-19a8c0adc40bef6b [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 [INFO] [stdout] [INFO] [stderr] Running /opt/rustwide/target/debug/deps/glusterchangelogparser-61cb8cbca5e1b501 [INFO] [stderr] Doc-tests glusterchangelog [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 [INFO] [stdout] [INFO] running `Command { std: "docker" "inspect" "1bbaa221ca295e6dd60614ae36da608e9a13d124486a1c0f9420fcc3c11725ad", kill_on_drop: false }` [INFO] running `Command { std: "docker" "rm" "-f" "1bbaa221ca295e6dd60614ae36da608e9a13d124486a1c0f9420fcc3c11725ad", kill_on_drop: false }` [INFO] [stdout] 1bbaa221ca295e6dd60614ae36da608e9a13d124486a1c0f9420fcc3c11725ad