[INFO] fetching crate libcnb 0.1.0...
[INFO] testing libcnb-0.1.0 against master#99e3aef02079e9c10583638520cd0c134dc3a01d for pr-85530
[INFO] extracting crate libcnb 0.1.0 into /workspace/builds/worker-1/source
[INFO] validating manifest of crates.io crate libcnb 0.1.0 on toolchain 99e3aef02079e9c10583638520cd0c134dc3a01d
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate libcnb 0.1.0
[INFO] finished tweaking crates.io crate libcnb 0.1.0
[INFO] tweaked toml for crates.io crate libcnb 0.1.0 written to /workspace/builds/worker-1/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 77ce2c2e748beae11672022e7c7faf184e48a62fe17568f98965f7e6c506e3c1
[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" "77ce2c2e748beae11672022e7c7faf184e48a62fe17568f98965f7e6c506e3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "77ce2c2e748beae11672022e7c7faf184e48a62fe17568f98965f7e6c506e3c1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "77ce2c2e748beae11672022e7c7faf184e48a62fe17568f98965f7e6c506e3c1", kill_on_drop: false }`
[INFO] [stdout] 77ce2c2e748beae11672022e7c7faf184e48a62fe17568f98965f7e6c506e3c1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 8d1d68e153fee18aed7e1cf32e95d77a7ca6ab204ad58323e67bbcdb55e5971a
[INFO] running `Command { std: "docker" "start" "-a" "8d1d68e153fee18aed7e1cf32e95d77a7ca6ab204ad58323e67bbcdb55e5971a", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling ucd-trie v0.1.3
[INFO] [stderr]    Compiling pest v2.1.3
[INFO] [stderr]    Compiling semver-parser v0.10.2
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling thiserror-impl v1.0.25
[INFO] [stderr]    Compiling thiserror v1.0.25
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]    Compiling semver v0.11.0
[INFO] [stderr]    Compiling toml v0.5.8
[INFO] [stderr]    Compiling libcnb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 25.23s
[INFO] running `Command { std: "docker" "inspect" "8d1d68e153fee18aed7e1cf32e95d77a7ca6ab204ad58323e67bbcdb55e5971a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d1d68e153fee18aed7e1cf32e95d77a7ca6ab204ad58323e67bbcdb55e5971a", kill_on_drop: false }`
[INFO] [stdout] 8d1d68e153fee18aed7e1cf32e95d77a7ca6ab204ad58323e67bbcdb55e5971a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9428e4aaaf6b2bcbf562d7db6da7bcb450959c8a0ee931c01a470ccb4052eb37
[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" "9428e4aaaf6b2bcbf562d7db6da7bcb450959c8a0ee931c01a470ccb4052eb37", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.95
[INFO] [stderr]    Compiling cfg-if v1.0.0
[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 v0.6.2
[INFO] [stderr]    Compiling rand_chacha v0.3.0
[INFO] [stderr]    Compiling rand v0.8.3
[INFO] [stderr]    Compiling tempfile v3.2.0
[INFO] [stderr]    Compiling libcnb v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 9.39s
[INFO] running `Command { std: "docker" "inspect" "9428e4aaaf6b2bcbf562d7db6da7bcb450959c8a0ee931c01a470ccb4052eb37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9428e4aaaf6b2bcbf562d7db6da7bcb450959c8a0ee931c01a470ccb4052eb37", kill_on_drop: false }`
[INFO] [stdout] 9428e4aaaf6b2bcbf562d7db6da7bcb450959c8a0ee931c01a470ccb4052eb37
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+99e3aef02079e9c10583638520cd0c134dc3a01d" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] c2af27a87ccd368f91cfff848253574a79ff34ca561dd2cb197d3f4c000cfd76
[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" "c2af27a87ccd368f91cfff848253574a79ff34ca561dd2cb197d3f4c000cfd76", kill_on_drop: false }`
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.04s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/libcnb-2b13c3aa99b303fc)
[INFO] [stdout] 
[INFO] [stdout] running 12 tests
[INFO] [stdout] test data::build_plan::tests::it_writes_simple_build_plan ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_does_not_allow_config ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_does_not_allow_app ... ok
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_empty ... ok
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_with_metadata ... ok
[INFO] [stdout] test data::buildpack_plan::tests::it_parses_simple ... ok
[INFO] [stdout] test layer::tests::new_reads_layer_toml_metadata ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_from_str_major ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_minimal_metabuildpack ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_minimal_buildpack ... ok
[INFO] [stdout] test data::buildpack::tests::can_serialize_metabuildpack ... ok
[INFO] [stdout] test data::buildpack::tests::buildpack_id_from_str_major_minor ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 12 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.01s
[INFO] [stdout] 
[INFO] [stderr]    Doc-tests libcnb
[INFO] [stdout] 
[INFO] [stdout] running 9 tests
[INFO] [stdout] test src/platform.rs - platform::PlatformEnv::var (line 62) ... ok
[INFO] [stdout] test src/platform.rs - platform::PlatformEnv::from_path (line 80) ... ok
[INFO] [stdout] test src/platform.rs - platform::Platform::from_path (line 28) ... ok
[INFO] [stdout] test src/data/launch.rs - data::launch::ProcessType (line 80) ... 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 22) ... ok
[INFO] [stdout] test src/layer.rs - layer::Layer::new (line 27) ... ok
[INFO] [stdout] test src/data/buildpack.rs - data::buildpack::BuildpackToml (line 11) ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 9 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 4.99s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "c2af27a87ccd368f91cfff848253574a79ff34ca561dd2cb197d3f4c000cfd76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c2af27a87ccd368f91cfff848253574a79ff34ca561dd2cb197d3f4c000cfd76", kill_on_drop: false }`
[INFO] [stdout] c2af27a87ccd368f91cfff848253574a79ff34ca561dd2cb197d3f4c000cfd76