[INFO] fetching crate debouncing 0.1.0...
[INFO] testing debouncing-0.1.0 against master#a77da2d454e6caa227a85b16410b95f93495e7e0 for pr-91031
[INFO] extracting crate debouncing 0.1.0 into /workspace/builds/worker-36/source
[INFO] validating manifest of crates.io crate debouncing 0.1.0 on toolchain a77da2d454e6caa227a85b16410b95f93495e7e0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate debouncing 0.1.0
[INFO] finished tweaking crates.io crate debouncing 0.1.0
[INFO] tweaked toml for crates.io crate debouncing 0.1.0 written to /workspace/builds/worker-36/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "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-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 032de5fb9e6e4770886ac1439017343136650d8abb92f50a1d7d008b4c25a8a6
[INFO] running `Command { std: "docker" "start" "-a" "032de5fb9e6e4770886ac1439017343136650d8abb92f50a1d7d008b4c25a8a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "032de5fb9e6e4770886ac1439017343136650d8abb92f50a1d7d008b4c25a8a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "032de5fb9e6e4770886ac1439017343136650d8abb92f50a1d7d008b4c25a8a6", kill_on_drop: false }`
[INFO] [stdout] 032de5fb9e6e4770886ac1439017343136650d8abb92f50a1d7d008b4c25a8a6
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-36/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" "+a77da2d454e6caa227a85b16410b95f93495e7e0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 80c32c9a56abbab10aaa032f2504409be10abe0dad6aafd86856c83c13d1bafd
[INFO] running `Command { std: "docker" "start" "-a" "80c32c9a56abbab10aaa032f2504409be10abe0dad6aafd86856c83c13d1bafd", kill_on_drop: false }`
[INFO] [stderr]    Compiling no-std-compat v0.1.1
[INFO] [stdout] error[E0433]: failed to resolve: could not find `prelude` in `__alloc`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/no-std-compat-0.1.1/src/generated.rs:123:52
[INFO] [stdout]     |
[INFO] [stdout] 123 |         #[cfg(feature = "alloc")] pub use __alloc::prelude::v1::*;
[INFO] [stdout]     |                                                    ^^^^^^^ could not find `prelude` in `__alloc`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `__core::raw`
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/no-std-compat-0.1.1/src/generated.rs:133:21
[INFO] [stdout]     |
[INFO] [stdout] 133 |     pub use __core::raw::*;
[INFO] [stdout]     |                     ^^^ could not find `raw` in `__core`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `raw_vec` is private
[INFO] [stdout]    --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/no-std-compat-0.1.1/src/generated.rs:136:48
[INFO] [stdout]     |
[INFO] [stdout] 136 |     #[cfg(feature = "alloc")] pub use __alloc::raw_vec::*;
[INFO] [stdout]     |                                                ^^^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `raw_vec` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `no-std-compat` due to 4 previous errors
[INFO] running `Command { std: "docker" "inspect" "80c32c9a56abbab10aaa032f2504409be10abe0dad6aafd86856c83c13d1bafd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "80c32c9a56abbab10aaa032f2504409be10abe0dad6aafd86856c83c13d1bafd", kill_on_drop: false }`
[INFO] [stdout] 80c32c9a56abbab10aaa032f2504409be10abe0dad6aafd86856c83c13d1bafd