[INFO] fetching crate powerset-enum 0.1.0...
[INFO] testing powerset-enum-0.1.0 against beta-2025-10-28 for beta-1.92-2
[INFO] extracting crate powerset-enum 0.1.0 into /workspace/builds/worker-0-tc2/source
[INFO] started tweaking crates.io crate powerset-enum 0.1.0
[INFO] finished tweaking crates.io crate powerset-enum 0.1.0
[INFO] tweaked toml for crates.io crate powerset-enum 0.1.0 written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of crates.io crate powerset-enum 0.1.0 on toolchain beta-2025-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]      Locking 6 packages to latest compatible versions
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+beta-2025-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 17ae4511121ddf58a2c72bacac7642f931979f8c1e3fb477670fbe6943fa8f6e
[INFO] running `Command { std: "docker" "start" "-a" "17ae4511121ddf58a2c72bacac7642f931979f8c1e3fb477670fbe6943fa8f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "17ae4511121ddf58a2c72bacac7642f931979f8c1e3fb477670fbe6943fa8f6e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "17ae4511121ddf58a2c72bacac7642f931979f8c1e3fb477670fbe6943fa8f6e", kill_on_drop: false }`
[INFO] [stdout] 17ae4511121ddf58a2c72bacac7642f931979f8c1e3fb477670fbe6943fa8f6e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 338ef758d146463c5b818425d033487024fdf974f9622ae5e7a272bc836a0752
[INFO] running `Command { std: "docker" "start" "-a" "338ef758d146463c5b818425d033487024fdf974f9622ae5e7a272bc836a0752", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling powerset-enum-traits v0.1.0
[INFO] [stderr]    Compiling powerset-enum-attr v0.1.0
[INFO] [stderr]    Compiling powerset-enum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 4.72s
[INFO] running `Command { std: "docker" "inspect" "338ef758d146463c5b818425d033487024fdf974f9622ae5e7a272bc836a0752", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "338ef758d146463c5b818425d033487024fdf974f9622ae5e7a272bc836a0752", kill_on_drop: false }`
[INFO] [stdout] 338ef758d146463c5b818425d033487024fdf974f9622ae5e7a272bc836a0752
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "RUSTDOCFLAGS=--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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2025-10-28" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5f6f2061b29a40407d841943cfdbc98671606a6e251122d15b55b18493a1e467
[INFO] running `Command { std: "docker" "start" "-a" "5f6f2061b29a40407d841943cfdbc98671606a6e251122d15b55b18493a1e467", kill_on_drop: false }`
[INFO] [stderr]    Compiling powerset-enum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `serde_derive`
[INFO] [stdout]  --> examples/with_powerset_enums.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use serde_derive::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `serde_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `serde_derive`, use `cargo add serde_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `serde_derive`
[INFO] [stdout]  --> examples/without_powerset_enums.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_derive::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of unresolved module or unlinked crate `serde_derive`
[INFO] [stdout]   |
[INFO] [stdout]   = help: if you wanted to use a crate named `serde_derive`, use `cargo add serde_derive` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `err_derive`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Debug, err_derive::Error)]
[INFO] [stdout]    |                 ^^^^^^^^^^ use of unresolved module or unlinked crate `err_derive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `err_derive`
[INFO] [stdout]  --> examples/without_powerset_enums.rs:8:17
[INFO] [stdout]   |
[INFO] [stdout] 8 | #[derive(Debug, err_derive::Error)]
[INFO] [stdout]   |                 ^^^^^^^^^^ use of unresolved module or unlinked crate `err_derive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `err_derive`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:12:17
[INFO] [stdout]    |
[INFO] [stdout] 12 | #[derive(Debug, err_derive::Error)]
[INFO] [stdout]    |                 ^^^^^^^^^^ use of unresolved module or unlinked crate `err_derive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> tests/tests.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type, exhaustive_patterns, proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/example.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type, exhaustive_patterns, proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]   --> examples/with_powerset_enums.rs:13:3
[INFO] [stdout]    |
[INFO] [stdout] 13 | #[error(display = "field is out of range")]
[INFO] [stdout]    |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]  --> examples/without_powerset_enums.rs:9:3
[INFO] [stdout]   |
[INFO] [stdout] 9 | #[error(display = "field is out of range")]
[INFO] [stdout]   |   ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]   --> examples/without_powerset_enums.rs:14:7
[INFO] [stdout]    |
[INFO] [stdout] 14 |     #[error(display = "{}", _0)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]   --> examples/without_powerset_enums.rs:16:7
[INFO] [stdout]    |
[INFO] [stdout] 16 |     #[error(display = "{}", _0)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: cannot find attribute `error` in this scope
[INFO] [stdout]   --> examples/without_powerset_enums.rs:18:7
[INFO] [stdout]    |
[INFO] [stdout] 18 |     #[error(display = "{}", _0)]
[INFO] [stdout]    |       ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `regex`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:53:30
[INFO] [stdout]    |
[INFO] [stdout] 53 |             if let Some(m) = regex::Regex::new(r"\d+").unwrap().find(&content) {
[INFO] [stdout]    |                              ^^^^^ use of unresolved module or unlinked crate `regex`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `regex`, use `cargo add regex` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `powerset-enum` (example "example") due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     serde_json::from_reader(file).map_err(Error::JsonError)
[INFO] [stdout]    |     ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/without_powerset_enums.rs:55:28
[INFO] [stdout]    |
[INFO] [stdout] 55 |                     field: m.as_str().parse().unwrap(),
[INFO] [stdout]    |                            ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tempfile`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let tempdir = tempfile::tempdir().unwrap();
[INFO] [stdout]    |                   ^^^^^^^^ use of unresolved module or unlinked crate `tempfile`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `tempfile`, use `cargo add tempfile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `powerset-enum` (test "tests") due to 1 previous error
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `regex`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:52:30
[INFO] [stdout]    |
[INFO] [stdout] 52 |             if let Some(m) = regex::Regex::new(r"\d+").unwrap().find(&content) {
[INFO] [stdout]    |                              ^^^^^ use of unresolved module or unlinked crate `regex`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `regex`, use `cargo add regex` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     JsonError(serde_json::Error),
[INFO] [stdout]    |               ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the beta release channel
[INFO] [stdout]  --> examples/with_powerset_enums.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(never_type, exhaustive_patterns, proc_macro_hygiene)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `powerset-enum` (example "without_powerset_enums") due to 12 previous errors
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:31:8
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Ok(serde_json::from_reader(file)?)
[INFO] [stdout]    |        ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0282]: type annotations needed
[INFO] [stdout]   --> examples/with_powerset_enums.rs:54:28
[INFO] [stdout]    |
[INFO] [stdout] 54 |                     field: m.as_str().parse().unwrap(),
[INFO] [stdout]    |                            ^ cannot infer type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `tempfile`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let tempdir = tempfile::tempdir().unwrap();
[INFO] [stdout]    |                   ^^^^^^^^ use of unresolved module or unlinked crate `tempfile`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `tempfile`, use `cargo add tempfile` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     JsonError(serde_json::Error),
[INFO] [stdout]    |               ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:29:76
[INFO] [stdout]    |
[INFO] [stdout] 29 | fn load_data_file_unchecked(path: &Path) -> Result<Data, Error![io::Error, serde_json::Error]> {
[INFO] [stdout]    |                                                                            ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:42:66
[INFO] [stdout]    |
[INFO] [stdout] 42 | fn load_data_file_or_default(path: &Path) -> Result<Data, Error![serde_json::Error, FieldError]> {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:34:66
[INFO] [stdout]    |
[INFO] [stdout] 34 | fn load_data_file(path: &Path) -> Result<Data, Error![io::Error, serde_json::Error, FieldError]> {
[INFO] [stdout]    |                                                                  ^^^^^^^^^^ use of unresolved module or unlinked crate `serde_json`
[INFO] [stdout]    |
[INFO] [stdout]    = help: if you wanted to use a crate named `serde_json`, use `cargo add serde_json` to add it to your `Cargo.toml`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0282, E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0282`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `powerset-enum` (example "with_powerset_enums") due to 12 previous errors
[INFO] running `Command { std: "docker" "inspect" "5f6f2061b29a40407d841943cfdbc98671606a6e251122d15b55b18493a1e467", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f6f2061b29a40407d841943cfdbc98671606a6e251122d15b55b18493a1e467", kill_on_drop: false }`
[INFO] [stdout] 5f6f2061b29a40407d841943cfdbc98671606a6e251122d15b55b18493a1e467
