[INFO] fetching crate libcnb 0.3.0...
[INFO] testing libcnb-0.3.0 against master#62efba8a050c64249dab942951bb28f710208bc8 for pr-90799
[INFO] extracting crate libcnb 0.3.0 into /workspace/builds/worker-8/source
[INFO] validating manifest of crates.io crate libcnb 0.3.0 on toolchain 62efba8a050c64249dab942951bb28f710208bc8
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libcnb 0.3.0
[INFO] finished tweaking crates.io crate libcnb 0.3.0
[INFO] tweaked toml for crates.io crate libcnb 0.3.0 written to /workspace/builds/worker-8/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b4e30c04c45b533c1f0d7bf49a0db81adf5efa83637b9b071629851bfba5e6ce
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "b4e30c04c45b533c1f0d7bf49a0db81adf5efa83637b9b071629851bfba5e6ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b4e30c04c45b533c1f0d7bf49a0db81adf5efa83637b9b071629851bfba5e6ce", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b4e30c04c45b533c1f0d7bf49a0db81adf5efa83637b9b071629851bfba5e6ce", kill_on_drop: false }`
[INFO] [stdout] b4e30c04c45b533c1f0d7bf49a0db81adf5efa83637b9b071629851bfba5e6ce
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 47ab0203e61fa2f463f718eb3ad56c7aded0bd4f25fc8eabd8db2055d0da9355
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "47ab0203e61fa2f463f718eb3ad56c7aded0bd4f25fc8eabd8db2055d0da9355", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]    Compiling syn v1.0.82
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling thiserror-impl v1.0.30
[INFO] [stderr]    Compiling thiserror v1.0.30
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling semver v1.0.4
[INFO] [stderr]    Compiling libcnb v0.3.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: field is never read: `group`
[INFO] [stdout]   --> src/data/buildpack.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     group: Vec<Group>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.16s
[INFO] running `Command { std: "docker" "inspect" "47ab0203e61fa2f463f718eb3ad56c7aded0bd4f25fc8eabd8db2055d0da9355", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47ab0203e61fa2f463f718eb3ad56c7aded0bd4f25fc8eabd8db2055d0da9355", kill_on_drop: false }`
[INFO] [stdout] 47ab0203e61fa2f463f718eb3ad56c7aded0bd4f25fc8eabd8db2055d0da9355
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d2d375a266f15b096efff83a16c75c30d3899a96db7dae76129ab86104bb9ff1
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "d2d375a266f15b096efff83a16c75c30d3899a96db7dae76129ab86104bb9ff1", kill_on_drop: false }`
[INFO] [stderr]    Compiling ppv-lite86 v0.2.15
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[INFO] [stdout] warning: field is never read: `group`
[INFO] [stdout]   --> src/data/buildpack.rs:69:5
[INFO] [stdout]    |
[INFO] [stdout] 69 |     group: Vec<Group>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling rand_core v0.6.3
[INFO] [stderr]    Compiling rand_chacha v0.3.1
[INFO] [stderr]    Compiling rand v0.8.4
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling libcnb v0.3.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.27s
[INFO] running `Command { std: "docker" "inspect" "d2d375a266f15b096efff83a16c75c30d3899a96db7dae76129ab86104bb9ff1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2d375a266f15b096efff83a16c75c30d3899a96db7dae76129ab86104bb9ff1", kill_on_drop: false }`
[INFO] [stdout] d2d375a266f15b096efff83a16c75c30d3899a96db7dae76129ab86104bb9ff1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-8/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+62efba8a050c64249dab942951bb28f710208bc8" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 0f1d3e3f1ea34ef10aa8e5748584102e34a418988463e1937e6fb41edf4dcd48
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "0f1d3e3f1ea34ef10aa8e5748584102e34a418988463e1937e6fb41edf4dcd48", kill_on_drop: false }`
[INFO] [stdout] 
[INFO] [stderr] warning: field is never read: `group`
[INFO] [stdout] running 27 tests
[INFO] [stderr]   --> src/data/buildpack.rs:69:5
[INFO] [stdout] test data::buildpack::tests::buildpack_api_display ... ok
[INFO] [stderr]    |
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_simple ... ok
[INFO] [stderr] 69 |     group: Vec<Group>,
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_with_metadata ... ok
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `libcnb` (lib) generated 1 warning
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libcnb-1ec22f165b3a254d)
[INFO] [stdout] test data::launch::tests::test_process_type_eq ... ok
[INFO] [stdout] test data::layer_content_metadata::tests::metadata_is_optional ... ok
[INFO] [stdout] test layer_env::test::test_layer_env_delta_eq ... ok
[INFO] [stdout] test layer_env::test::test_modification_behavior_order ... ok
[INFO] [stdout] test layer_env::test::test_layer_env_delta_fs_read_write ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_minimal_buildpack ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_from_str_major ... ok
[INFO] [stdout] test layer_env::test::test_read_from_layer_dir_layer_paths_launch ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_does_not_allow_config ... ok
[INFO] [stdout] test data::build_plan::tests::it_writes_simple_build_plan ... ok
[INFO] [stdout] test layer_env::test::test_reference_impl_add_root_dir_should_append_posix_directories ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_does_not_allow_app ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_from_str_major_minor ... ok
[INFO] [stdout] test layer_env::test::test_layer_env_insert ... ok
[INFO] [stdout] test platform::tests::from_path_doesnt_blow_up_if_platform_env_is_missing ... ok
[INFO] [stdout] test layer_env::test::test_reference_impl_env_files_have_a_suffix_it_performs_the_matching_action ... ok
[INFO] [stdout] test env::test::test_into_iterator ... ok
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_empty ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_metabuildpack ... ok
[INFO] [stdout] test layer_env::test::test_reference_impl_env_files_have_no_suffix_default_action_is_override ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_minimal_metabuildpack ... ok
[INFO] [stdout] test layer_env::test::test_read_from_layer_dir_layer_paths_build ... ok
[INFO] [stdout] test platform::tests::from_path_handles_directories_in_env_folder ... ok
[INFO] [stdout] test platform::tests::from_path_handles_directories_via_symlinks ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 27 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.05s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libcnb
[INFO] [stdout] 
[INFO] [stdout] running 17 tests
[INFO] [stdout] test src/platform.rs - platform::Platform::from_path (line 27) - compile ... ok
[INFO] [stdout] test src/platform.rs - platform::PlatformEnv::from_path (line 62) - compile ... ok
[INFO] [stdout] test src/platform.rs - platform::PlatformEnv::var (line 44) - compile ... ok
[INFO] [stdout] test src/runtime.rs - runtime::cnb_runtime (line 29) - compile ... ok
[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 libcnb --test /opt/rustwide/workdir/src/lib.rs -L dependency=/opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern lazy_static=/opt/rustwide/target/debug/deps/liblazy_static-b33cd6b8ee13db74.rlib --extern libcnb=/opt/rustwide/target/debug/deps/liblibcnb-329faaa1a6f9c7ca.rlib --extern regex=/opt/rustwide/target/debug/deps/libregex-dd9363dd410b6a25.rlib --extern semver=/opt/rustwide/target/debug/deps/libsemver-d594553529702c3b.rlib --extern serde=/opt/rustwide/target/debug/deps/libserde-10ccb4187e78e3c1.rlib --extern tempfile=/opt/rustwide/target/debug/deps/libtempfile-cd45d89ff71893f2.rlib --extern thiserror=/opt/rustwide/target/debug/deps/libthiserror-d71020588b4cfffc.rlib --extern toml=/opt/rustwide/target/debug/deps/libtoml-46537d77bce159ce.rlib -C embed-bitcode=no --error-format human` (signal: 9, SIGKILL: kill)
[INFO] running `Command { std: "docker" "inspect" "0f1d3e3f1ea34ef10aa8e5748584102e34a418988463e1937e6fb41edf4dcd48", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0f1d3e3f1ea34ef10aa8e5748584102e34a418988463e1937e6fb41edf4dcd48", kill_on_drop: false }`
[INFO] [stdout] 0f1d3e3f1ea34ef10aa8e5748584102e34a418988463e1937e6fb41edf4dcd48