[INFO] fetching crate extendr-api 0.2.0...
[INFO] testing extendr-api-0.2.0 against 1.60.0 for beta-1.61-1
[INFO] extracting crate extendr-api 0.2.0 into /workspace/builds/worker-53/source
[INFO] validating manifest of crates.io crate extendr-api 0.2.0 on toolchain 1.60.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate extendr-api 0.2.0
[INFO] finished tweaking crates.io crate extendr-api 0.2.0
[INFO] tweaked toml for crates.io crate extendr-api 0.2.0 written to /workspace/builds/worker-53/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded extendr-engine v0.2.0
[INFO] [stderr]   Downloaded extendr-macros v0.2.0
[INFO] [stderr]   Downloaded libR-sys v0.2.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f209aaddf256497d3e88b990d18785df77dfbacb8c9554e10d4a78fa23461d51
[INFO] running `Command { std: "docker" "start" "-a" "f209aaddf256497d3e88b990d18785df77dfbacb8c9554e10d4a78fa23461d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f209aaddf256497d3e88b990d18785df77dfbacb8c9554e10d4a78fa23461d51", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f209aaddf256497d3e88b990d18785df77dfbacb8c9554e10d4a78fa23461d51", kill_on_drop: false }`
[INFO] [stdout] f209aaddf256497d3e88b990d18785df77dfbacb8c9554e10d4a78fa23461d51
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6588ce10416d32e639a0a69a505b2045e9654600f9cc1263276a3f464b5832b8
[INFO] running `Command { std: "docker" "start" "-a" "6588ce10416d32e639a0a69a505b2045e9654600f9cc1263276a3f464b5832b8", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.37
[INFO] [stderr]    Compiling libR-sys v0.2.2
[INFO] [stderr]    Compiling syn v1.0.91
[INFO] [stderr]    Compiling extendr-engine v0.2.0
[INFO] [stderr]    Compiling quote v1.0.18
[INFO] [stderr]    Compiling extendr-macros v0.2.0
[INFO] [stderr]    Compiling extendr-api v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `root_obj`
[INFO] [stdout]    --> src/iter.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 |     root_obj: Robj,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PairlistIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/iter.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_obj`
[INFO] [stdout]    --> src/iter.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     root_obj: Robj,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `PairlistTagIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/iter.rs:186:10
[INFO] [stdout]     |
[INFO] [stdout] 186 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 14.92s
[INFO] running `Command { std: "docker" "inspect" "6588ce10416d32e639a0a69a505b2045e9654600f9cc1263276a3f464b5832b8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6588ce10416d32e639a0a69a505b2045e9654600f9cc1263276a3f464b5832b8", kill_on_drop: false }`
[INFO] [stdout] 6588ce10416d32e639a0a69a505b2045e9654600f9cc1263276a3f464b5832b8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 273b6aa4072e730e0c32a8a6c7b61f858ba5b9c8001821056d0618c36a87626c
[INFO] running `Command { std: "docker" "start" "-a" "273b6aa4072e730e0c32a8a6c7b61f858ba5b9c8001821056d0618c36a87626c", kill_on_drop: false }`
[INFO] [stderr]    Compiling extendr-api v0.2.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `root_obj`
[INFO] [stdout]    --> src/iter.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 |     root_obj: Robj,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PairlistIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/iter.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_obj`
[INFO] [stdout]    --> src/iter.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     root_obj: Robj,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `PairlistTagIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/iter.rs:186:10
[INFO] [stdout]     |
[INFO] [stdout] 186 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_obj`
[INFO] [stdout]    --> src/iter.rs:154:5
[INFO] [stdout]     |
[INFO] [stdout] 154 |     root_obj: Robj,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] note: `PairlistIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/iter.rs:152:10
[INFO] [stdout]     |
[INFO] [stdout] 152 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `root_obj`
[INFO] [stdout]    --> src/iter.rs:197:5
[INFO] [stdout]     |
[INFO] [stdout] 197 |     root_obj: Robj,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] note: `PairlistTagIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    --> src/iter.rs:186:10
[INFO] [stdout]     |
[INFO] [stdout] 186 | #[derive(Clone)]
[INFO] [stdout]     |          ^^^^^
[INFO] [stdout]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 4.09s
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "273b6aa4072e730e0c32a8a6c7b61f858ba5b9c8001821056d0618c36a87626c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "273b6aa4072e730e0c32a8a6c7b61f858ba5b9c8001821056d0618c36a87626c", kill_on_drop: false }`
[INFO] [stdout] 273b6aa4072e730e0c32a8a6c7b61f858ba5b9c8001821056d0618c36a87626c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-53/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+1.60.0" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78de02f9a7867ae66df12a7a7015503902ebe14267f247daae886c77b9d074e1
[INFO] running `Command { std: "docker" "start" "-a" "78de02f9a7867ae66df12a7a7015503902ebe14267f247daae886c77b9d074e1", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr] warning: field is never read: `root_obj`
[INFO] [stderr]    --> src/iter.rs:154:5
[INFO] [stderr]     |
[INFO] [stderr] 154 |     root_obj: Robj,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] note: `PairlistIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/iter.rs:152:10
[INFO] [stderr]     |
[INFO] [stderr] 152 | #[derive(Clone)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `root_obj`
[INFO] [stderr]    --> src/iter.rs:197:5
[INFO] [stderr]     |
[INFO] [stderr] 197 |     root_obj: Robj,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr] note: `PairlistTagIter` has a derived impl for the trait `Clone`, but this is intentionally ignored during dead code analysis
[INFO] [stderr]    --> src/iter.rs:186:10
[INFO] [stderr]     |
[INFO] [stderr] 186 | #[derive(Clone)]
[INFO] [stderr]     |          ^^^^^
[INFO] [stderr]     = note: this warning originates in the derive macro `Clone` (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: `extendr-api` (lib) generated 2 warnings
[INFO] [stderr] warning: `extendr-api` (lib test) generated 2 warnings (2 duplicates)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.38s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/extendr_api-da15a07de31a9e3b)
[INFO] [stdout] 
[INFO] [stdout] running 15 tests
[INFO] [stdout] test tests::test_na_str ... ok
[INFO] [stdout] test tests::r_output_test ... ok
[INFO] [stdout] test tests::class_wrapper_test ... ok
[INFO] [stdout] test matrix::matrix_ops ... ok
[INFO] [stdout] test ownership::test::collection_test ... ok
[INFO] [stdout] test robj::tests::input_iterator_test ... ok
[INFO] [stdout] test robj::tests::parse_test ... ok
[INFO] [stdout] test robj::tests::output_iterator_test ... ok
[INFO] [stdout] test tests::metadata_test ... ok
[INFO] [stdout] test robj::tests::test_from_robj ... ok
[INFO] [stdout] test robj::tests::test_debug ... ok
[INFO] [stdout] test robj::tests::test_to_robj ... ok
[INFO] [stdout] test tests::slice_test ... ok
[INFO] [stdout] test tests::export_test ... ok
[INFO] [stdout] test ownership::test::basic_test ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 15 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.43s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests extendr-api
[INFO] [stdout] 
[INFO] [stdout] running 135 tests
[INFO] [stderr] error: test failed, to rerun pass '--doc'
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustdoc --edition=2018 --crate-type lib --crate-name extendr_api --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps -L /usr/lib/R/lib --extern extendr_api=/opt/rustwide/target/debug/deps/libextendr_api-55ea65a37844ab2f.rlib --extern extendr_engine=/opt/rustwide/target/debug/deps/libextendr_engine-978947b58695f6a2.rlib --extern extendr_macros=/opt/rustwide/target/debug/deps/libextendr_macros-767fd0bff4252b9c.so --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b341606102c7008f.rlib --extern libR_sys=/opt/rustwide/target/debug/deps/liblibR_sys-06be77d60562f854.rlib -C embed-bitcode=no --cfg 'feature="default"' --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "78de02f9a7867ae66df12a7a7015503902ebe14267f247daae886c77b9d074e1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78de02f9a7867ae66df12a7a7015503902ebe14267f247daae886c77b9d074e1", kill_on_drop: false }`
[INFO] [stdout] 78de02f9a7867ae66df12a7a7015503902ebe14267f247daae886c77b9d074e1