[INFO] fetching crate extendr-api 0.6.0...
[INFO] checking extendr-api-0.6.0 against nightly-2024-02-05 for check-cfg
[INFO] extracting crate extendr-api 0.6.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate extendr-api 0.6.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extendr-api 0.6.0
[INFO] finished tweaking crates.io crate extendr-api 0.6.0
[INFO] tweaked toml for crates.io crate extendr-api 0.6.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ctor v0.2.6
[INFO] [stderr]   Downloaded extendr-macros v0.6.0
[INFO] [stderr]   Downloaded extendr-engine v0.6.0
[INFO] [stderr]   Downloaded libR-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] add6b7408f704c665d3fc08107d471454bd62ccc4dcf7818183a9d32ea3b4bb2
[INFO] running `Command { std: "docker" "start" "-a" "add6b7408f704c665d3fc08107d471454bd62ccc4dcf7818183a9d32ea3b4bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "add6b7408f704c665d3fc08107d471454bd62ccc4dcf7818183a9d32ea3b4bb2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "add6b7408f704c665d3fc08107d471454bd62ccc4dcf7818183a9d32ea3b4bb2", kill_on_drop: false }`
[INFO] [stdout] add6b7408f704c665d3fc08107d471454bd62ccc4dcf7818183a9d32ea3b4bb2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 60e41e4e4e12d8d5301493a8f4823b9886956b704657b307040dbc4661133573
[INFO] running `Command { std: "docker" "start" "-a" "60e41e4e4e12d8d5301493a8f4823b9886956b704657b307040dbc4661133573", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling libR-sys v0.6.0
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling extendr-engine v0.6.0
[INFO] [stderr]    Compiling extendr-api v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling extendr-macros v0.6.0
[INFO] [stderr]    Compiling ctor v0.2.6
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stdout] warning: unused import: `super::na::*`
[INFO] [stdout]   --> src/prelude.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use super::na::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::optional::*`
[INFO] [stdout]   --> src/prelude.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub use super::optional::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operators::*`
[INFO] [stdout]   --> src/robj/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub use operators::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rmacros::*`
[INFO] [stdout]    --> src/lib.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 | pub use rmacros::*;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wrapper/strings.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let mut robj = Strings::alloc_vector(STRSXP, len);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures-executor v0.3.30
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking futures v0.3.30
[INFO] [stderr]     Checking rstest v0.18.2
[INFO] [stdout] warning: unused import: `extendr_engine::with_r`
[INFO] [stdout]  --> tests/altrep_tests.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use extendr_engine::with_r;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]  --> tests/from_iterator_tests.rs:9:21
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct PlzBreak(i32);
[INFO] [stdout]   |            -------- ^^^
[INFO] [stdout]   |            |
[INFO] [stdout]   |            field in this struct
[INFO] [stdout]   |
[INFO] [stdout]   = note: `PlzBreak` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]   |
[INFO] [stdout] 9 |     struct PlzBreak(());
[INFO] [stdout]   |                     ~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::na::*`
[INFO] [stdout]   --> src/prelude.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use super::na::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::optional::*`
[INFO] [stdout]   --> src/prelude.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub use super::optional::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operators::*`
[INFO] [stdout]   --> src/robj/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub use operators::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rmacros::*`
[INFO] [stdout]    --> src/lib.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 | pub use rmacros::*;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `matrix`
[INFO] [stdout]    --> src/wrapper/matrix.rs:421:13
[INFO] [stdout]     |
[INFO] [stdout] 421 |         let matrix = RMatrix::new_matrix(n_x, n_y, |r, c| res[c][r]);
[INFO] [stdout]     |             ^^^^^^ help: if this is intentional, prefix it with an underscore: `_matrix`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wrapper/strings.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let mut robj = Strings::alloc_vector(STRSXP, len);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 4.67s
[INFO] running `Command { std: "docker" "inspect" "60e41e4e4e12d8d5301493a8f4823b9886956b704657b307040dbc4661133573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "60e41e4e4e12d8d5301493a8f4823b9886956b704657b307040dbc4661133573", kill_on_drop: false }`
[INFO] [stdout] 60e41e4e4e12d8d5301493a8f4823b9886956b704657b307040dbc4661133573
[INFO] checking extendr-api-0.6.0 against nightly-2024-02-05+rustflags=-Dunexpected_cfgs+cargoflags=-Zcheck-cfg for check-cfg
[INFO] extracting crate extendr-api 0.6.0 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate extendr-api 0.6.0 on toolchain nightly-2024-02-05
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extendr-api 0.6.0
[INFO] finished tweaking crates.io crate extendr-api 0.6.0
[INFO] tweaked toml for crates.io crate extendr-api 0.6.0 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-02-05" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7e6830dda38f4d626396f3c5c7d2d68e2d0fcb4b06881cf9ff6d4cdee8bbea6
[INFO] running `Command { std: "docker" "start" "-a" "a7e6830dda38f4d626396f3c5c7d2d68e2d0fcb4b06881cf9ff6d4cdee8bbea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7e6830dda38f4d626396f3c5c7d2d68e2d0fcb4b06881cf9ff6d4cdee8bbea6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7e6830dda38f4d626396f3c5c7d2d68e2d0fcb4b06881cf9ff6d4cdee8bbea6", kill_on_drop: false }`
[INFO] [stdout] a7e6830dda38f4d626396f3c5c7d2d68e2d0fcb4b06881cf9ff6d4cdee8bbea6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Dunexpected_cfgs" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-02-05" "check" "--frozen" "--all" "--all-targets" "--message-format=json" "-Zcheck-cfg", kill_on_drop: false }`
[INFO] [stdout] 5eb35e2e306d4314de4461968dc3d920403e15f22701ed89f5aef712a96a0d42
[INFO] running `Command { std: "docker" "start" "-a" "5eb35e2e306d4314de4461968dc3d920403e15f22701ed89f5aef712a96a0d42", kill_on_drop: false }`
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]    Compiling libR-sys v0.6.0
[INFO] [stderr]     Checking futures-sink v0.3.30
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling extendr-engine v0.6.0
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]    Compiling extendr-api v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]     Checking futures-timer v3.0.2
[INFO] [stderr]    Compiling extendr-macros v0.6.0
[INFO] [stderr]    Compiling ctor v0.2.6
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling rstest_macros v0.18.2
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_newenv`
[INFO] [stdout]    --> src/functions.rs:117:7
[INFO] [stdout]     |
[INFO] [stdout] 117 | #[cfg(use_r_newenv)]
[INFO] [stdout]     |       ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: expected names are: `debug_assertions`, `doc`, `doctest`, `feature`, `miri`, `overflow_checks`, `panic`, `proc_macro`, `relocation_model`, `sanitize`, `sanitizer_cfi_generalize_pointers`, `sanitizer_cfi_normalize_integers`, `target_abi`, `target_arch`, `target_endian`, `target_env`, `target_family`, `target_feature`, `target_has_atomic`, `target_has_atomic_equal_alignment`, `target_has_atomic_load_store`, `target_os`, `target_pointer_width`, `target_thread_local`, `target_vendor`, `test`, `unix`, `windows`
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_newenv)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout]     = note: requested on the command line with `-D unexpected-cfgs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_newenv`
[INFO] [stdout]    --> src/functions.rs:126:11
[INFO] [stdout]     |
[INFO] [stdout] 126 | #[cfg(not(use_r_newenv))]
[INFO] [stdout]     |           ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_newenv)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_altlist`
[INFO] [stdout]   --> src/prelude.rs:44:7
[INFO] [stdout]    |
[INFO] [stdout] 44 | #[cfg(use_r_altlist)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_altlist)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::na::*`
[INFO] [stdout]   --> src/prelude.rs:11:9
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub use super::na::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `super::optional::*`
[INFO] [stdout]   --> src/prelude.rs:78:9
[INFO] [stdout]    |
[INFO] [stdout] 78 | pub use super::optional::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_altlist`
[INFO] [stdout]    --> src/robj/rinternals.rs:477:11
[INFO] [stdout]     |
[INFO] [stdout] 477 |     #[cfg(use_r_altlist)]
[INFO] [stdout]     |           ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_altlist)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `operators::*`
[INFO] [stdout]   --> src/robj/mod.rs:39:9
[INFO] [stdout]    |
[INFO] [stdout] 39 | pub use operators::*;
[INFO] [stdout]    |         ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_altlist`
[INFO] [stdout]   --> src/wrapper/mod.rs:33:7
[INFO] [stdout]    |
[INFO] [stdout] 33 | #[cfg(use_r_altlist)]
[INFO] [stdout]    |       ^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_altlist)");` to the top of a `build.rs`
[INFO] [stdout]    = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_altlist`
[INFO] [stdout]    --> src/wrapper/altrep.rs:458:7
[INFO] [stdout]     |
[INFO] [stdout] 458 | #[cfg(use_r_altlist)]
[INFO] [stdout]     |       ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_altlist)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_altlist`
[INFO] [stdout]     --> src/wrapper/altrep.rs:1025:11
[INFO] [stdout]      |
[INFO] [stdout] 1025 |     #[cfg(use_r_altlist)]
[INFO] [stdout]      |           ^^^^^^^^^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_altlist)");` to the top of a `build.rs`
[INFO] [stdout]      = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: unexpected `cfg` condition name: `use_r_altlist`
[INFO] [stdout]    --> src/wrapper/altrep.rs:673:23
[INFO] [stdout]     |
[INFO] [stdout] 673 |                 #[cfg(use_r_altlist)]
[INFO] [stdout]     |                       ^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = help: consider using a Cargo feature instead or adding `println!("cargo:rustc-check-cfg=cfg(use_r_altlist)");` to the top of a `build.rs`
[INFO] [stdout]     = note: see <https://doc.rust-lang.org/nightly/cargo/reference/unstable.html#check-cfg> for more information about checking conditional configuration
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rmacros::*`
[INFO] [stdout]    --> src/lib.rs:388:9
[INFO] [stdout]     |
[INFO] [stdout] 388 | pub use rmacros::*;
[INFO] [stdout]     |         ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/wrapper/strings.rs:112:13
[INFO] [stdout]     |
[INFO] [stdout] 112 |         let mut robj = Strings::alloc_vector(STRSXP, len);
[INFO] [stdout]     |             ----^^^^
[INFO] [stdout]     |             |
[INFO] [stdout]     |             help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 8 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `extendr-api` (lib) due to 9 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5eb35e2e306d4314de4461968dc3d920403e15f22701ed89f5aef712a96a0d42", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5eb35e2e306d4314de4461968dc3d920403e15f22701ed89f5aef712a96a0d42", kill_on_drop: false }`
[INFO] [stdout] 5eb35e2e306d4314de4461968dc3d920403e15f22701ed89f5aef712a96a0d42
