[INFO] fetching crate mri-sys 0.2.6...
[INFO] checking mri-sys-0.2.6 against try#a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d for pr-145342-1
[INFO] extracting crate mri-sys 0.2.6 into /workspace/builds/worker-4-tc2/source
[INFO] started tweaking crates.io crate mri-sys 0.2.6
[INFO] finished tweaking crates.io crate mri-sys 0.2.6
[INFO] tweaked toml for crates.io crate mri-sys 0.2.6 written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate mri-sys 0.2.6 on toolchain a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate mri-sys 0.2.6 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" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cefd2e057fda558d206ea239ae6a94a3ce5bc9f2aab2012a3dac482e23ba1a8d
[INFO] running `Command { std: "docker" "start" "-a" "cefd2e057fda558d206ea239ae6a94a3ce5bc9f2aab2012a3dac482e23ba1a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cefd2e057fda558d206ea239ae6a94a3ce5bc9f2aab2012a3dac482e23ba1a8d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cefd2e057fda558d206ea239ae6a94a3ce5bc9f2aab2012a3dac482e23ba1a8d", kill_on_drop: false }`
[INFO] [stdout] cefd2e057fda558d206ea239ae6a94a3ce5bc9f2aab2012a3dac482e23ba1a8d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a4980311fb7bb9e7893708e6bd3fbbfb2819fd3d" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 00468a5f786fec4f6733bc696aaffff7678aafd8c26de75f67e630d0ee770a0c
[INFO] running `Command { std: "docker" "start" "-a" "00468a5f786fec4f6733bc696aaffff7678aafd8c26de75f67e630d0ee770a0c", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.121
[INFO] [stderr]    Compiling mri-sys v0.2.6 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]  --> src/consts.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[cfg(mri_use_flonum)]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]  --> src/consts.rs:8:7
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[cfg(mri_use_flonum)]
[INFO] [stdout]   |       ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = help: expected names are: `docsrs`, `feature`, and `test` and 31 more
[INFO] [stdout]   = help: consider using a Cargo feature instead
[INFO] [stdout]   = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]            [lints.rust]
[INFO] [stdout]            unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]   = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]   = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout]   = note: `#[warn(unexpected_cfgs)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:10:11
[INFO] [stdout]    |
[INFO] [stdout] 10 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:13:7
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:15:11
[INFO] [stdout]    |
[INFO] [stdout] 15 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:20:11
[INFO] [stdout]    |
[INFO] [stdout] 20 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:23:7
[INFO] [stdout]    |
[INFO] [stdout] 23 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:25:11
[INFO] [stdout]    |
[INFO] [stdout] 25 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:30:7
[INFO] [stdout]    |
[INFO] [stdout] 30 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:32:11
[INFO] [stdout]    |
[INFO] [stdout] 32 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:37:7
[INFO] [stdout]    |
[INFO] [stdout] 37 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:74:71
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn rb_define_virtual_variable(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                       ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:74:101
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn rb_define_virtual_variable(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                                                     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:75:85
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn rb_define_hooked_variable(_: *const libc::c_char, _: *mut VALUE, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                                     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/consts.rs:39:11
[INFO] [stdout]    |
[INFO] [stdout] 39 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:75:115
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn rb_define_hooked_variable(_: *const libc::c_char, _: *mut VALUE, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                                                                   ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:74:71
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn rb_define_virtual_variable(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                       ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(missing_abi)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:80:71
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn rb_define_method(_: VALUE, _: *const libc::c_char, _: *mut extern fn() -> VALUE, _: libc::c_int) -> VALUE;
[INFO] [stdout]    |                                                                       ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:74:101
[INFO] [stdout]    |
[INFO] [stdout] 74 |     pub fn rb_define_virtual_variable(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                                                     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:81:80
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn rb_define_module_function(_: VALUE, _: *const libc::c_char, _: *mut extern fn() -> VALUE, _: libc::c_int) -> VALUE;
[INFO] [stdout]    |                                                                                ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:75:85
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn rb_define_hooked_variable(_: *const libc::c_char, _: *mut VALUE, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                                     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:82:70
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn rb_define_global_function(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: libc::c_int) -> VALUE;
[INFO] [stdout]    |                                                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:75:115
[INFO] [stdout]    |
[INFO] [stdout] 75 |     pub fn rb_define_hooked_variable(_: *const libc::c_char, _: *mut VALUE, _: *mut extern fn() -> VALUE, _: *mut extern fn());
[INFO] [stdout]    |                                                                                                                   ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:143:31
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn rb_iterate(_: *mut extern fn(VALUE) -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                               ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:80:71
[INFO] [stdout]    |
[INFO] [stdout] 80 |     pub fn rb_define_method(_: VALUE, _: *const libc::c_char, _: *mut extern fn() -> VALUE, _: libc::c_int) -> VALUE;
[INFO] [stdout]    |                                                                       ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:143:76
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn rb_iterate(_: *mut extern fn(VALUE) -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                                            ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:144:30
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn rb_rescue(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                              ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:81:80
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn rb_define_module_function(_: VALUE, _: *const libc::c_char, _: *mut extern fn() -> VALUE, _: libc::c_int) -> VALUE;
[INFO] [stdout]    |                                                                                ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:144:70
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn rb_rescue(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]   --> src/functions.rs:82:70
[INFO] [stdout]    |
[INFO] [stdout] 82 |     pub fn rb_define_global_function(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: libc::c_int) -> VALUE;
[INFO] [stdout]    |                                                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:146:31
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn rb_rescue2(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE, ...) -> VALUE;
[INFO] [stdout]     |                               ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:146:71
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn rb_rescue2(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE, ...) -> VALUE;
[INFO] [stdout]     |                                                                       ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:147:30
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn rb_ensure(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                              ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:143:31
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn rb_iterate(_: *mut extern fn(VALUE) -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                               ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:147:70
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn rb_ensure(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:143:76
[INFO] [stdout]     |
[INFO] [stdout] 143 |     pub fn rb_iterate(_: *mut extern fn(VALUE) -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                                            ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:148:53
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn rb_catch(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:144:30
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn rb_rescue(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                              ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:149:43
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn rb_catch_obj(_: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                           ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:144:70
[INFO] [stdout]     |
[INFO] [stdout] 144 |     pub fn rb_rescue(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/ty.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:146:31
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn rb_rescue2(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE, ...) -> VALUE;
[INFO] [stdout]     |                               ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/ty.rs:52:7
[INFO] [stdout]    |
[INFO] [stdout] 52 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:146:71
[INFO] [stdout]     |
[INFO] [stdout] 146 |     pub fn rb_rescue2(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE, ...) -> VALUE;
[INFO] [stdout]     |                                                                       ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:147:30
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn rb_ensure(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                              ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:147:70
[INFO] [stdout]     |
[INFO] [stdout] 147 |     pub fn rb_ensure(_: *mut extern fn() -> VALUE, _: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                                      ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:148:53
[INFO] [stdout]     |
[INFO] [stdout] 148 |     pub fn rb_catch(_: *const libc::c_char, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                                     ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `extern` declarations without an explicit ABI are deprecated
[INFO] [stdout]    --> src/functions.rs:149:43
[INFO] [stdout]     |
[INFO] [stdout] 149 |     pub fn rb_catch_obj(_: VALUE, _: *mut extern fn() -> VALUE, _: VALUE) -> VALUE;
[INFO] [stdout]     |                                           ^^^^^^ help: explicitly specify the "C" ABI: `extern "C"`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/ty.rs:49:11
[INFO] [stdout]    |
[INFO] [stdout] 49 | #[cfg(not(mri_use_flonum))]
[INFO] [stdout]    |           ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unexpected `cfg` condition name: `mri_use_flonum`
[INFO] [stdout]   --> src/ty.rs:52:7
[INFO] [stdout]    |
[INFO] [stdout] 52 | #[cfg(mri_use_flonum)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead
[INFO] [stdout]    = help: or consider adding in `Cargo.toml` the `check-cfg` lint config for the lint:
[INFO] [stdout]             [lints.rust]
[INFO] [stdout]             unexpected_cfgs = { level = "warn", check-cfg = ['cfg(mri_use_flonum)'] }
[INFO] [stdout]    = help: or consider adding `println!("cargo::rustc-check-cfg=cfg(mri_use_flonum)");` to the top of the `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/rustc/check-cfg/cargo-specifics.html> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 2.25s
[INFO] running `Command { std: "docker" "inspect" "00468a5f786fec4f6733bc696aaffff7678aafd8c26de75f67e630d0ee770a0c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "00468a5f786fec4f6733bc696aaffff7678aafd8c26de75f67e630d0ee770a0c", kill_on_drop: false }`
[INFO] [stdout] 00468a5f786fec4f6733bc696aaffff7678aafd8c26de75f67e630d0ee770a0c