[INFO] fetching crate extendr-api 0.6.0...
[INFO] checking extendr-api-0.6.0 against master#5518eaa946291f00471af8b254b2a1715f234882 for pr-120393
[INFO] extracting crate extendr-api 0.6.0 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate extendr-api 0.6.0 on toolchain 5518eaa946291f00471af8b254b2a1715f234882
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "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-0-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5518eaa946291f00471af8b254b2a1715f234882" "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" "+5518eaa946291f00471af8b254b2a1715f234882" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded extendr-engine v0.6.0
[INFO] [stderr]   Downloaded extendr-macros v0.6.0
[INFO] [stderr]   Downloaded ctor v0.2.6
[INFO] [stderr]   Downloaded libR-sys v0.6.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+5518eaa946291f00471af8b254b2a1715f234882" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9a8b073e31cc52b4a9e468918736d5cc51d6137386a5a62df8363782ade1ad45
[INFO] running `Command { std: "docker" "start" "-a" "9a8b073e31cc52b4a9e468918736d5cc51d6137386a5a62df8363782ade1ad45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9a8b073e31cc52b4a9e468918736d5cc51d6137386a5a62df8363782ade1ad45", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9a8b073e31cc52b4a9e468918736d5cc51d6137386a5a62df8363782ade1ad45", kill_on_drop: false }`
[INFO] [stdout] 9a8b073e31cc52b4a9e468918736d5cc51d6137386a5a62df8363782ade1ad45
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+5518eaa946291f00471af8b254b2a1715f234882" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 69e74a580f86fe957991c121c64b79f15ec0fd056f5f3ea60fdc7113865305a7
[INFO] running `Command { std: "docker" "start" "-a" "69e74a580f86fe957991c121c64b79f15ec0fd056f5f3ea60fdc7113865305a7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libR-sys v0.6.0
[INFO] [stderr]    Compiling semver v1.0.21
[INFO] [stderr]     Checking futures-core v0.3.30
[INFO] [stderr]    Compiling relative-path v1.9.2
[INFO] [stderr]    Compiling extendr-engine v0.6.0
[INFO] [stderr]    Compiling extendr-api v0.6.0 (/opt/rustwide/workdir)
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling extendr-macros v0.6.0
[INFO] [stderr]     Checking futures-channel v0.3.30
[INFO] [stderr]    Compiling rustc_version v0.4.0
[INFO] [stderr]    Compiling ctor v0.2.6
[INFO] [stderr]     Checking futures-util v0.3.30
[INFO] [stderr]     Checking futures-timer v3.0.2
[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: 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: 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: 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 3.93s
[INFO] running `Command { std: "docker" "inspect" "69e74a580f86fe957991c121c64b79f15ec0fd056f5f3ea60fdc7113865305a7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "69e74a580f86fe957991c121c64b79f15ec0fd056f5f3ea60fdc7113865305a7", kill_on_drop: false }`
[INFO] [stdout] 69e74a580f86fe957991c121c64b79f15ec0fd056f5f3ea60fdc7113865305a7
