[INFO] fetching crate powerset-enum 0.1.0...
[INFO] testing powerset-enum-0.1.0 against 1.45.2 for beta-1.46-1
[INFO] extracting crate powerset-enum 0.1.0 into /workspace/builds/worker-0/source
[INFO] validating manifest of crates.io crate powerset-enum 0.1.0 on toolchain 1.45.2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/source/Cargo.toml
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update", kill_on_drop: false }`
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.45.2" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d1f3691d75653c2d116f3f7a70a18e04753f49a503b9070683f61a2d5ba91797
[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" "d1f3691d75653c2d116f3f7a70a18e04753f49a503b9070683f61a2d5ba91797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d1f3691d75653c2d116f3f7a70a18e04753f49a503b9070683f61a2d5ba91797", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d1f3691d75653c2d116f3f7a70a18e04753f49a503b9070683f61a2d5ba91797", kill_on_drop: false }`
[INFO] [stdout] d1f3691d75653c2d116f3f7a70a18e04753f49a503b9070683f61a2d5ba91797
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "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] 79fa83e63ed3e540c5ab97a08f484d2fb129920a76a9242c3486e705c1781f68
[INFO] running `Command { std: "docker" "start" "-a" "79fa83e63ed3e540c5ab97a08f484d2fb129920a76a9242c3486e705c1781f68", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v0.4.30
[INFO] [stderr]    Compiling unicode-xid v0.1.0
[INFO] [stderr]    Compiling syn v0.15.44
[INFO] [stderr]    Compiling powerset-enum-traits v0.1.0
[INFO] [stderr]    Compiling quote v0.6.13
[INFO] [stderr]    Compiling powerset-enum-attr v0.1.0
[INFO] [stderr]    Compiling powerset-enum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 21.00s
[INFO] running `Command { std: "docker" "inspect" "79fa83e63ed3e540c5ab97a08f484d2fb129920a76a9242c3486e705c1781f68", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "79fa83e63ed3e540c5ab97a08f484d2fb129920a76a9242c3486e705c1781f68", kill_on_drop: false }`
[INFO] [stdout] 79fa83e63ed3e540c5ab97a08f484d2fb129920a76a9242c3486e705c1781f68
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env@sha256:a636fd89d022f18117e1dc8fb37a0a009933cdbbe082814857f0e2024962d47c" "/opt/rustwide/cargo-home/bin/cargo" "+1.45.2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 561d2d243bb7c0ff5540c1e6c7f4a4febe45609ea7c7b216f1917743bbfdb1bd
[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" "561d2d243bb7c0ff5540c1e6c7f4a4febe45609ea7c7b216f1917743bbfdb1bd", 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/without_powerset_enums.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use serde_derive::Deserialize;
[INFO] [stdout]   |     ^^^^^^^^^^^^ use of undeclared type or module `serde_derive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `err_derive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `err_derive`
[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: cannot determine resolution for the derive macro `Deserialize`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:22:26
[INFO] [stdout]    |
[INFO] [stdout] 22 | #[derive(Debug, Default, Deserialize)]
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:17:15
[INFO] [stdout]    |
[INFO] [stdout] 17 |     JsonError(serde_json::Error),
[INFO] [stdout]    |               ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `regex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tempfile`
[INFO] [stdout]   --> examples/without_powerset_enums.rs:67:19
[INFO] [stdout]    |
[INFO] [stdout] 67 |     let tempdir = tempfile::tempdir().unwrap();
[INFO] [stdout]    |                   ^^^^^^^^ use of undeclared type or module `tempfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[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 undeclared type or module `serde_derive`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `err_derive`
[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 determine resolution for the derive macro `Deserialize`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:24:26
[INFO] [stdout]    |
[INFO] [stdout] 24 | #[derive(Debug, Default, Deserialize)]
[INFO] [stdout]    |                          ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: import resolution is stuck, try simplifying macro imports
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:20:15
[INFO] [stdout]    |
[INFO] [stdout] 20 |     JsonError(serde_json::Error),
[INFO] [stdout]    |               ^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[powerset_enum]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] ...
[INFO] [stdout] 29 | fn load_data_file_unchecked(path: &Path) -> Result<Data, Error![io::Error, serde_json::Error]> {
[INFO] [stdout]    |                                                          ------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `serde_json`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[powerset_enum]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] ...
[INFO] [stdout] 34 | fn load_data_file(path: &Path) -> Result<Data, Error![io::Error, serde_json::Error, FieldError]> {
[INFO] [stdout]    |                                                ------------------------------------------------ in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `serde_json`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:16:1
[INFO] [stdout]    |
[INFO] [stdout] 16 | #[powerset_enum]
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^ use of undeclared type or module `serde_json`
[INFO] [stdout] ...
[INFO] [stdout] 42 | fn load_data_file_or_default(path: &Path) -> Result<Data, Error![serde_json::Error, FieldError]> {
[INFO] [stdout]    |                                                           ------------------------------------- in this macro invocation
[INFO] [stdout]    |
[INFO] [stdout]    = note: this error originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `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 undeclared type or module `regex`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type or module `tempfile`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:66:19
[INFO] [stdout]    |
[INFO] [stdout] 66 |     let tempdir = tempfile::tempdir().unwrap();
[INFO] [stdout]    |                   ^^^^^^^^ use of undeclared type or module `tempfile`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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] [stderr] error: could not compile `powerset-enum`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable 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] warning: unused import: `powerset_enum::Extract`
[INFO] [stdout]   --> examples/with_powerset_enums.rs:10:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | use powerset_enum::Extract;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 12 previous errors; 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0433, E0554.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "561d2d243bb7c0ff5540c1e6c7f4a4febe45609ea7c7b216f1917743bbfdb1bd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "561d2d243bb7c0ff5540c1e6c7f4a4febe45609ea7c7b216f1917743bbfdb1bd", kill_on_drop: false }`
[INFO] [stdout] 561d2d243bb7c0ff5540c1e6c7f4a4febe45609ea7c7b216f1917743bbfdb1bd