[INFO] fetching crate ffishim_derive 0.1.2...
[INFO] testing ffishim_derive-0.1.2 against 1.60.0 for beta-1.61-1
[INFO] extracting crate ffishim_derive 0.1.2 into /workspace/builds/worker-18/source
[INFO] validating manifest of crates.io crate ffishim_derive 0.1.2 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 ffishim_derive 0.1.2
[INFO] finished tweaking crates.io crate ffishim_derive 0.1.2
[INFO] tweaked toml for crates.io crate ffishim_derive 0.1.2 written to /workspace/builds/worker-18/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] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.60.0" "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-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] c4a0fc5ed496d90c8eb8b6ccd7d340cd7f9345ed7502a7ac7e236528a6566038
[INFO] running `Command { std: "docker" "start" "-a" "c4a0fc5ed496d90c8eb8b6ccd7d340cd7f9345ed7502a7ac7e236528a6566038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c4a0fc5ed496d90c8eb8b6ccd7d340cd7f9345ed7502a7ac7e236528a6566038", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c4a0fc5ed496d90c8eb8b6ccd7d340cd7f9345ed7502a7ac7e236528a6566038", kill_on_drop: false }`
[INFO] [stdout] c4a0fc5ed496d90c8eb8b6ccd7d340cd7f9345ed7502a7ac7e236528a6566038
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-18/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] 47fbf367263e17472f611578f93e35678147171e2f4593058757d7f0d7074cf4
[INFO] running `Command { std: "docker" "start" "-a" "47fbf367263e17472f611578f93e35678147171e2f4593058757d7f0d7074cf4", kill_on_drop: false }`
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling once_cell v1.10.0
[INFO] [stderr]    Compiling paste-impl v0.1.18
[INFO] [stderr]    Compiling darling_core v0.13.4
[INFO] [stderr]    Compiling paste v0.1.18
[INFO] [stderr]    Compiling darling_macro v0.13.4
[INFO] [stderr]    Compiling darling v0.13.4
[INFO] [stderr]    Compiling ffishim v0.1.2
[INFO] [stdout] error[E0432]: unresolved import `heck::SnakeCase`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ffishim-0.1.2/src/new.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ::heck::SnakeCase;
[INFO] [stdout]   |     ^^^^^^^^---------
[INFO] [stdout]   |     |       |
[INFO] [stdout]   |     |       help: a similar name exists in the module: `AsSnakeCase`
[INFO] [stdout]   |     no `SnakeCase` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `heck::SnakeCase`
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ffishim-0.1.2/src/free.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use ::heck::SnakeCase;
[INFO] [stdout]   |     ^^^^^^^^---------
[INFO] [stdout]   |     |       |
[INFO] [stdout]   |     |       help: a similar name exists in the module: `AsSnakeCase`
[INFO] [stdout]   |     no `SnakeCase` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_snake_case` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ffishim-0.1.2/src/new.rs:64:76
[INFO] [stdout]    |
[INFO] [stdout] 64 |         let func_name = new_ident(&format!("new_{}", orig_name.to_string().to_snake_case()));
[INFO] [stdout]    |                                                                            ^^^^^^^^^^^^^ method not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use heck::ToSnakeCase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `to_snake_case` found for struct `String` in the current scope
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/github.com-1ecc6299db9ec823/ffishim-0.1.2/src/free.rs:27:78
[INFO] [stdout]    |
[INFO] [stdout] 27 |         let func_name = new_ident(&format!("free_{}", data.ident.to_string().to_snake_case()));
[INFO] [stdout]    |                                                                              ^^^^^^^^^^^^^ method not found in `String`
[INFO] [stdout]    |
[INFO] [stdout]    = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: the following trait is implemented but not in scope; perhaps add a `use` for it:
[INFO] [stdout]    |
[INFO] [stdout] 1  | use heck::ToSnakeCase;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 4 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `ffishim` due to 5 previous errors
[INFO] running `Command { std: "docker" "inspect" "47fbf367263e17472f611578f93e35678147171e2f4593058757d7f0d7074cf4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "47fbf367263e17472f611578f93e35678147171e2f4593058757d7f0d7074cf4", kill_on_drop: false }`
[INFO] [stdout] 47fbf367263e17472f611578f93e35678147171e2f4593058757d7f0d7074cf4