[INFO] crate derivate 0.1.0 is already in cache
[INFO] checking derivate-0.1.0 against master#bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc for pr-70917
[INFO] extracting crate derivate 0.1.0 into /workspace/builds/worker-6/source
[INFO] validating manifest of crates.io crate derivate 0.1.0 on toolchain bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate derivate 0.1.0
[INFO] finished tweaking crates.io crate derivate 0.1.0
[INFO] tweaked toml for crates.io crate derivate 0.1.0 written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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=forbid" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+bf1f2eedda4fa02b7c9347dd849ed73ddd43dedc" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] f770b3291525826276ee63e32e670cb714a427811e357316ea6acfcda7cc4a7c
[INFO] running `"docker" "start" "-a" "f770b3291525826276ee63e32e670cb714a427811e357316ea6acfcda7cc4a7c"`
[INFO] [stderr]     Checking syn v0.10.8
[INFO] [stderr]     Checking itertools v0.5.10
[INFO] [stderr]    Compiling derivate v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:42:21
[INFO] [stderr]    |
[INFO] [stderr] 42 |         let attrs = try!(attr::Input::from_ast(&item.attrs));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:46:28
[INFO] [stderr]    |
[INFO] [stderr] 46 |                 Body::Enum(try!(enum_from_ast(variants)))
[INFO] [stderr]    |                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:49:39
[INFO] [stderr]    |
[INFO] [stderr] 49 |                 let (style, fields) = try!(struct_from_ast(variant_data));
[INFO] [stderr]    |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:81:35
[INFO] [stderr]    |
[INFO] [stderr] 81 |             let (style, fields) = try!(struct_from_ast(&variant.data));
[INFO] [stderr]    |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:83:24
[INFO] [stderr]    |
[INFO] [stderr] 83 |                 attrs: try!(attr::Input::from_ast(&variant.attrs)),
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:95:32
[INFO] [stderr]    |
[INFO] [stderr] 95 |             Ok((Style::Struct, try!(fields_from_ast(fields))))
[INFO] [stderr]    |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/ast.rs:98:31
[INFO] [stderr]    |
[INFO] [stderr] 98 |             Ok((Style::Tuple, try!(fields_from_ast(fields))))
[INFO] [stderr]    |                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/ast.rs:111:24
[INFO] [stderr]     |
[INFO] [stderr] 111 |                 attrs: try!(attr::Field::from_ast(field)),
[INFO] [stderr]     |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:157:47
[INFO] [stderr]     |
[INFO] [stderr] 157 |                   let MetaItem($name, $value) = try!(metaitem);
[INFO] [stderr]     |                                                 ^^^
[INFO] [stderr] ...
[INFO] [stderr] 194 | /         for_all_attr! {
[INFO] [stderr] 195 | |             for (name, values) in attrs;
[INFO] [stderr] 196 | |             "Clone" => {
[INFO] [stderr] 197 | |                 let mut clone = input.clone.take().unwrap_or_default();
[INFO] [stderr] ...   |
[INFO] [stderr] 280 | |             }
[INFO] [stderr] 281 | |         }
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:205:32
[INFO] [stderr]     |
[INFO] [stderr] 205 |                     "bound" => try!(parse_bound(&mut clone.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:207:44
[INFO] [stderr]     |
[INFO] [stderr] 207 |                         clone.clone_from = try!(parse_boolean_meta_item(&value, true, "clone_from"));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:232:32
[INFO] [stderr]     |
[INFO] [stderr] 232 |                     "bound" => try!(parse_bound(&mut copy.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:241:32
[INFO] [stderr]     |
[INFO] [stderr] 241 |                     "bound" => try!(parse_bound(&mut debug.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:243:45
[INFO] [stderr]     |
[INFO] [stderr] 243 |                         debug.transparent = try!(parse_boolean_meta_item(&value, true, "transparent"));
[INFO] [stderr]     |                                             ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:251:32
[INFO] [stderr]     |
[INFO] [stderr] 251 |                     "bound" => try!(parse_bound(&mut default.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:253:39
[INFO] [stderr]     |
[INFO] [stderr] 253 |                         default.new = try!(parse_boolean_meta_item(&value, true, "new"));
[INFO] [stderr]     |                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:261:32
[INFO] [stderr]     |
[INFO] [stderr] 261 |                     "bound" => try!(parse_bound(&mut eq.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:268:32
[INFO] [stderr]     |
[INFO] [stderr] 268 |                     "bound" => try!(parse_bound(&mut hash.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:275:32
[INFO] [stderr]     |
[INFO] [stderr] 275 |                     "bound" => try!(parse_bound(&mut partial_eq.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:277:46
[INFO] [stderr]     |
[INFO] [stderr] 277 |                         partial_eq.on_enum = try!(parse_boolean_meta_item(&value, true, "feature_allow_slow_enum"));
[INFO] [stderr]     |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:157:47
[INFO] [stderr]     |
[INFO] [stderr] 157 |                   let MetaItem($name, $value) = try!(metaitem);
[INFO] [stderr]     |                                                 ^^^
[INFO] [stderr] ...
[INFO] [stderr] 340 | /         for_all_attr! {
[INFO] [stderr] 341 | |             for (name, values) in field.attrs;
[INFO] [stderr] 342 | |             "Clone" => {
[INFO] [stderr] 343 | |                 match_attributes! {
[INFO] [stderr] ...   |
[INFO] [stderr] 406 | |             }
[INFO] [stderr] 407 | |         }
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this warning originates in a macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:345:32
[INFO] [stderr]     |
[INFO] [stderr] 345 |                     "bound" => try!(parse_bound(&mut out.clone.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:347:36
[INFO] [stderr]     |
[INFO] [stderr] 347 |                         let path = try!(value.ok_or_else(|| "`clone_with` needs a value".to_string()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:348:53
[INFO] [stderr]     |
[INFO] [stderr] 348 |                         out.clone.clone_with = Some(try!(syn::parse_path(path)));
[INFO] [stderr]     |                                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:355:32
[INFO] [stderr]     |
[INFO] [stderr] 355 |                     "bound" => try!(parse_bound(&mut out.debug.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:357:36
[INFO] [stderr]     |
[INFO] [stderr] 357 |                         let path = try!(value.ok_or_else(|| "`format_with` needs a value".to_string()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:358:54
[INFO] [stderr]     |
[INFO] [stderr] 358 |                         out.debug.format_with = Some(try!(syn::parse_path(path)));
[INFO] [stderr]     |                                                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:361:44
[INFO] [stderr]     |
[INFO] [stderr] 361 |                         out.debug.ignore = try!(parse_boolean_meta_item(&value, true, "ignore"));
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:368:32
[INFO] [stderr]     |
[INFO] [stderr] 368 |                     "bound" => try!(parse_bound(&mut out.default.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:370:37
[INFO] [stderr]     |
[INFO] [stderr] 370 |                         let value = try!(value.ok_or_else(|| "`value` needs a value".to_string()));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:371:50
[INFO] [stderr]     |
[INFO] [stderr] 371 |                         out.default.value = Some(try!(syn::parse_expr(value)));
[INFO] [stderr]     |                                                  ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:378:32
[INFO] [stderr]     |
[INFO] [stderr] 378 |                     "bound" => try!(parse_bound(&mut out.eq_bound, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:384:32
[INFO] [stderr]     |
[INFO] [stderr] 384 |                     "bound" => try!(parse_bound(&mut out.hash.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:386:36
[INFO] [stderr]     |
[INFO] [stderr] 386 |                         let path = try!(value.ok_or_else(|| "`hash_with` needs a value".to_string()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:387:51
[INFO] [stderr]     |
[INFO] [stderr] 387 |                         out.hash.hash_with = Some(try!(syn::parse_path(path)));
[INFO] [stderr]     |                                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:390:43
[INFO] [stderr]     |
[INFO] [stderr] 390 |                         out.hash.ignore = try!(parse_boolean_meta_item(&value, true, "ignore"));
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:397:32
[INFO] [stderr]     |
[INFO] [stderr] 397 |                     "bound" => try!(parse_bound(&mut out.partial_eq.bounds, value)),
[INFO] [stderr]     |                                ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:399:36
[INFO] [stderr]     |
[INFO] [stderr] 399 |                         let path = try!(value.ok_or_else(|| "`compare_with` needs a value".to_string()));
[INFO] [stderr]     |                                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:400:60
[INFO] [stderr]     |
[INFO] [stderr] 400 |                         out.partial_eq.compare_with = Some(try!(syn::parse_path(path)));
[INFO] [stderr]     |                                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:403:49
[INFO] [stderr]     |
[INFO] [stderr] 403 |                         out.partial_eq.ignore = try!(parse_boolean_meta_item(&value, true, "ignore"));
[INFO] [stderr]     |                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:493:26
[INFO] [stderr]     |
[INFO] [stderr] 493 |             let values = try!(
[INFO] [stderr]     |                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:498:37
[INFO] [stderr]     |
[INFO] [stderr] 498 |                         let value = try!(str_or_err(value));
[INFO] [stderr]     |                                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:511:25
[INFO] [stderr]     |
[INFO] [stderr] 511 |             let value = try!(str_or_err(value));
[INFO] [stderr]     |                         ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:547:17
[INFO] [stderr]     |
[INFO] [stderr] 547 |     let bound = try!(value.ok_or_else(|| "`bound` needs a value".to_string()));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/attr.rs:551:30
[INFO] [stderr]     |
[INFO] [stderr] 551 |         let mut predicates = try!(where_clause).predicates;
[INFO] [stderr]     |                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:27:24
[INFO] [stderr]    |
[INFO] [stderr] 27 |         tokens.append(&try!(clone::derive_copy(input)).to_string());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:42:24
[INFO] [stderr]    |
[INFO] [stderr] 42 |         tokens.append(&try!(cmp::derive_partial_eq(input)).to_string());
[INFO] [stderr]    |                        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:51:21
[INFO] [stderr]    |
[INFO] [stderr] 51 |         let input = try!(syn::parse_macro_input(&input.to_string()));
[INFO] [stderr]    |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:52:22
[INFO] [stderr]    |
[INFO] [stderr] 52 |         let parsed = try!(ast::Input::from_ast(&input));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]   --> src/lib.rs:53:22
[INFO] [stderr]    |
[INFO] [stderr] 53 |         let output = try!(derive_impls(&parsed));
[INFO] [stderr]    |                      ^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-issue-19037.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]  --> tests/derive-debug-generics.rs:4:10
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Derivative)]
[INFO] [stderr]   |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]   |
[INFO] [stderr]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-debug-generics.rs:12:10
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-debug-generics.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-debug-generics.rs:28:10
[INFO] [stderr]    |
[INFO] [stderr] 28 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-issue-29710.rs:17:10
[INFO] [stderr]    |
[INFO] [stderr] 17 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-debug-generics.rs:37:10
[INFO] [stderr]    |
[INFO] [stderr] 37 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-debug-generics.rs:41:10
[INFO] [stderr]    |
[INFO] [stderr] 41 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-issue-29710.rs:21:10
[INFO] [stderr]    |
[INFO] [stderr] 21 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-debug-generics.rs:45:10
[INFO] [stderr]    |
[INFO] [stderr] 45 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: aborting due to 7 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-class-implement-traits.rs:20:10
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-meta.rs:18:10
[INFO] [stderr]    |
[INFO] [stderr] 18 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-issue-19135.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-clone-tuple-struct.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-copyclone.rs:40:10
[INFO] [stderr]    |
[INFO] [stderr] 40 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-copyclone.rs:43:10
[INFO] [stderr]    |
[INFO] [stderr] 43 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-copyclone.rs:48:10
[INFO] [stderr]    |
[INFO] [stderr] 48 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-copyclone.rs:52:10
[INFO] [stderr]    |
[INFO] [stderr] 52 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-in-fn.rs:16:14
[INFO] [stderr]    |
[INFO] [stderr] 16 |     #[derive(Derivative)]
[INFO] [stderr]    |              ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_BOOL_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/rustc-deriving-copyclone.rs:17:37
[INFO] [stderr]    |
[INFO] [stderr] 17 | use std::sync::atomic::{AtomicBool, ATOMIC_BOOL_INIT, Ordering};
[INFO] [stderr]    |                                     ^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(deprecated)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'std::sync::atomic::ATOMIC_BOOL_INIT': the `new` function is now preferred
[INFO] [stderr]   --> tests/rustc-deriving-copyclone.rs:25:29
[INFO] [stderr]    |
[INFO] [stderr] 25 | static CLONED: AtomicBool = ATOMIC_BOOL_INIT;
[INFO] [stderr]    |                             ^^^^^^^^^^^^^^^^ help: replace the use of the deprecated item: `AtomicBool::new(false)`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-clone-array.rs:16:10
[INFO] [stderr]    |
[INFO] [stderr] 16 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-issue-29030.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]  --> tests/derive-clone.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]   |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]   |
[INFO] [stderr]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-clone.rs:29:10
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]  --> tests/derive-default.rs:4:17
[INFO] [stderr]   |
[INFO] [stderr] 4 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]   |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]   |
[INFO] [stderr]   = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-default.rs:12:17
[INFO] [stderr]    |
[INFO] [stderr] 12 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]    |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-default.rs:20:17
[INFO] [stderr]    |
[INFO] [stderr] 20 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]    |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-default.rs:29:17
[INFO] [stderr]    |
[INFO] [stderr] 29 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]    |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-clone.rs:33:17
[INFO] [stderr]    |
[INFO] [stderr] 33 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]    |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-default.rs:38:17
[INFO] [stderr]    |
[INFO] [stderr] 38 | #[derive(Debug, Derivative, PartialEq)]
[INFO] [stderr]    |                 ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error: aborting due to 5 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:18:12
[INFO] [stderr]    |
[INFO] [stderr] 18 | impl<'a> ::core::hash::Hasher for FakeHasher<'a> {
[INFO] [stderr]    |            ^^^^ maybe a missing crate `core`?
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:28:19
[INFO] [stderr]    |
[INFO] [stderr] 28 | fn fake_hash<E: ::core::hash::Hash>(e: E) -> Vec<u8> {
[INFO] [stderr]    |                   ^^^^ maybe a missing crate `core`?
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-via-extension-hash-enum.rs:14:10
[INFO] [stderr]    |
[INFO] [stderr] 14 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-issue-23649-3.rs:15:10
[INFO] [stderr]    |
[INFO] [stderr] 15 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/rustc-deriving-via-extension-hash-enum.rs:22:10
[INFO] [stderr]    |
[INFO] [stderr] 22 | #[derive(Derivative)]
[INFO] [stderr]    |          ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |           #[derive(Derivative)]
[INFO] [stderr]    |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 37 | /         define! {
[INFO] [stderr] 38 | |             struct;
[INFO] [stderr] 39 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to previous error
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: aborting due to 2 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |           #[derive(Derivative)]
[INFO] [stderr]    |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 45 | /         define! {
[INFO] [stderr] 46 | |             struct {
[INFO] [stderr] 47 | |                 foo: u8
[INFO] [stderr] 48 | |             }
[INFO] [stderr] 49 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |           #[derive(Derivative)]
[INFO] [stderr]    |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 56 | /         define! {
[INFO] [stderr] 57 | |             struct<'a> {
[INFO] [stderr] 58 | |                 foo: u8,
[INFO] [stderr] 59 | |                 bar: &'a str,
[INFO] [stderr] 60 | |             }
[INFO] [stderr] 61 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |           #[derive(Derivative)]
[INFO] [stderr]    |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 68 | /         define! {
[INFO] [stderr] 69 | |             struct<'a> (u8, &'a str);
[INFO] [stderr] 70 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |           #[derive(Derivative)]
[INFO] [stderr]    |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 77 | /         define! {
[INFO] [stderr] 78 | |             enum {
[INFO] [stderr] 79 | |                 A, B, C
[INFO] [stderr] 80 | |             }
[INFO] [stderr] 81 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]   --> tests/derive-hash.rs:8:18
[INFO] [stderr]    |
[INFO] [stderr] 8  |           #[derive(Derivative)]
[INFO] [stderr]    |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 89 | /         define! {
[INFO] [stderr] 90 | |             enum {
[INFO] [stderr] 91 | |                 A, B = 42, C
[INFO] [stderr] 92 | |             }
[INFO] [stderr] 93 | |         }
[INFO] [stderr]    | |_________- in this macro invocation
[INFO] [stderr]    |
[INFO] [stderr]    = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `derivate`.
[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] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]    --> tests/derive-hash.rs:8:18
[INFO] [stderr]     |
[INFO] [stderr] 8   |           #[derive(Derivative)]
[INFO] [stderr]     |                    ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr] ...
[INFO] [stderr] 101 | /         define! {
[INFO] [stderr] 102 | |             enum {
[INFO] [stderr] 103 | |                 A, B = 42, C=1
[INFO] [stderr] 104 | |             }
[INFO] [stderr] 105 | |         }
[INFO] [stderr]     | |_________- in this macro invocation
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error[E0433]: failed to resolve: maybe a missing crate `core`?
[INFO] [stderr]    --> tests/derive-hash.rs:113:18
[INFO] [stderr]     |
[INFO] [stderr] 113 |         #[derive(Derivative)]
[INFO] [stderr]     |                  ^^^^^^^^^^ maybe a missing crate `core`?
[INFO] [stderr]     |
[INFO] [stderr]     = note: this error originates in a derive macro (in Nightly builds, run with -Z macro-backtrace for more info)
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 10 previous errors
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0433`.
[INFO] [stderr] error: could not compile `derivate`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "f770b3291525826276ee63e32e670cb714a427811e357316ea6acfcda7cc4a7c"`
[INFO] running `"docker" "rm" "-f" "f770b3291525826276ee63e32e670cb714a427811e357316ea6acfcda7cc4a7c"`
[INFO] [stdout] f770b3291525826276ee63e32e670cb714a427811e357316ea6acfcda7cc4a7c
