[INFO] fetching crate libcnb 0.2.0-prerelease1...
[INFO] testing libcnb-0.2.0-prerelease1 against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] extracting crate libcnb 0.2.0-prerelease1 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate libcnb 0.2.0-prerelease1 on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libcnb 0.2.0-prerelease1
[INFO] finished tweaking crates.io crate libcnb 0.2.0-prerelease1
[INFO] tweaked toml for crates.io crate libcnb 0.2.0-prerelease1 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1cfe7499c422eabea4e02b2bd19d75379f16ebc75344a3f364404f2a47ea6f3d
[INFO] running `Command { std: "docker" "start" "-a" "1cfe7499c422eabea4e02b2bd19d75379f16ebc75344a3f364404f2a47ea6f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1cfe7499c422eabea4e02b2bd19d75379f16ebc75344a3f364404f2a47ea6f3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1cfe7499c422eabea4e02b2bd19d75379f16ebc75344a3f364404f2a47ea6f3d", kill_on_drop: false }`
[INFO] [stdout] 1cfe7499c422eabea4e02b2bd19d75379f16ebc75344a3f364404f2a47ea6f3d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52f1fc3874282fc4f6dee2af817ce31e52653b635fa8908f8403e9fe021bdb30
[INFO] running `Command { std: "docker" "start" "-a" "52f1fc3874282fc4f6dee2af817ce31e52653b635fa8908f8403e9fe021bdb30", kill_on_drop: false }`
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling regex-syntax v0.6.25
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling thiserror-impl v1.0.26
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling thiserror v1.0.26
[INFO] [stderr]    Compiling regex v1.5.4
[INFO] [stderr]    Compiling libcnb v0.2.0-prerelease1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 10.13s
[INFO] running `Command { std: "docker" "inspect" "52f1fc3874282fc4f6dee2af817ce31e52653b635fa8908f8403e9fe021bdb30", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52f1fc3874282fc4f6dee2af817ce31e52653b635fa8908f8403e9fe021bdb30", kill_on_drop: false }`
[INFO] [stdout] 52f1fc3874282fc4f6dee2af817ce31e52653b635fa8908f8403e9fe021bdb30
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0b54a1c4cdcb4447c350df69b1aafa607d5fd76dadc5d1495d69613611909bb7
[INFO] running `Command { std: "docker" "start" "-a" "0b54a1c4cdcb4447c350df69b1aafa607d5fd76dadc5d1495d69613611909bb7", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.98
[INFO] [stderr]    Compiling ppv-lite86 v0.2.10
[INFO] [stderr]    Compiling remove_dir_all v0.5.3
[INFO] [stderr]    Compiling getrandom v0.2.3
[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 v0.2.0-prerelease1 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 7.23s
[INFO] running `Command { std: "docker" "inspect" "0b54a1c4cdcb4447c350df69b1aafa607d5fd76dadc5d1495d69613611909bb7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0b54a1c4cdcb4447c350df69b1aafa607d5fd76dadc5d1495d69613611909bb7", kill_on_drop: false }`
[INFO] [stdout] 0b54a1c4cdcb4447c350df69b1aafa607d5fd76dadc5d1495d69613611909bb7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] b3680d8791bb97833853303e6a02bc475d206032a0f0212945410fcfa525f24b
[INFO] running `Command { std: "docker" "start" "-a" "b3680d8791bb97833853303e6a02bc475d206032a0f0212945410fcfa525f24b", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libcnb-9b0dde9c54252ba8)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test data::buildpack::tests::buildpack_id_does_not_allow_app ... 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 data::buildpack_plan::tests::it_parses_empty ... ok
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_simple ... ok
[INFO] [stdout] test data::layer_content_metadata::tests::metadata_is_optional ... ok
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_with_metadata ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_from_str_major_minor ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_minimal_metabuildpack ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_from_str_major ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_minimal_buildpack ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_metabuildpack ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libcnb
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/platform.rs - platform::PlatformEnv::from_path (line 63) - compile ... ok
[INFO] [stdout] test src/platform.rs - platform::Platform::from_path (line 28) - compile ... ok
[INFO] [stdout] test src/platform.rs - platform::PlatformEnv::var (line 45) - compile ... ok
[INFO] [stdout] test src/runtime.rs - runtime::cnb_runtime (line 19) - compile ... ok
[INFO] [stdout] test src/data/buildpack.rs - data::buildpack::BuildpackId (line 149) ... ok
[INFO] [stdout] test src/data/buildpack.rs - data::buildpack::StackId (line 188) ... ok
[INFO] [stdout] test src/data/launch.rs - data::launch::Launch (line 23) ... ok
[INFO] [stdout] test src/data/launch.rs - data::launch::ProcessType (line 92) ... ok
[INFO] [stdout] test src/data/buildpack.rs - data::buildpack::BuildpackToml (line 12) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 2.57s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "b3680d8791bb97833853303e6a02bc475d206032a0f0212945410fcfa525f24b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b3680d8791bb97833853303e6a02bc475d206032a0f0212945410fcfa525f24b", kill_on_drop: false }`
[INFO] [stdout] b3680d8791bb97833853303e6a02bc475d206032a0f0212945410fcfa525f24b