[INFO] updating cached repository https://github.com/toqueteos/rust-json
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5b989b905b31337ea9506dcb3e6f3e87a4f1914a
[INFO] checking toqueteos/rust-json against try#e4dba30b9b475d8750370c4dfb49b6541990904d for pr-71393
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoqueteos%2Frust-json" "/workspace/builds/worker-6/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/toqueteos/rust-json on toolchain e4dba30b9b475d8750370c4dfb49b6541990904d
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/toqueteos/rust-json
[INFO] finished tweaking git repo https://github.com/toqueteos/rust-json
[INFO] tweaked toml for git repo https://github.com/toqueteos/rust-json written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/toqueteos/rust-json already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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" "+e4dba30b9b475d8750370c4dfb49b6541990904d" "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] 2a896b7f91d458ae89db6759989269ce7ac81f3c48f598f8fa9ddea54641ef74
[INFO] running `"docker" "start" "-a" "2a896b7f91d458ae89db6759989269ce7ac81f3c48f598f8fa9ddea54641ef74"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking json v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:305:20
[INFO] [stderr]     |
[INFO] [stderr] 305 |         let item = try!(self.next());
[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/lib.rs:341:15
[INFO] [stderr]     |
[INFO] [stderr] 341 |         match try!(items.peek_token()) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:344:17
[INFO] [stderr]     |
[INFO] [stderr] 344 |                 try!(items.expect(Token::BeginArray));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:346:27
[INFO] [stderr]     |
[INFO] [stderr] 346 |                     match try!(items.peek_token()) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:353:51
[INFO] [stderr]     |
[INFO] [stderr] 353 |                         | Token::String => v.push(try!(<Json>::from_json(items))),
[INFO] [stderr]     |                                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:356:27
[INFO] [stderr]     |
[INFO] [stderr] 356 |                     match try!(items.next_token()) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 |                 try!(items.expect(Token::BeginObject));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:368:35
[INFO] [stderr]     |
[INFO] [stderr] 368 |                     let k = match try!(items.peek_token()) {
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:369:42
[INFO] [stderr]     |
[INFO] [stderr] 369 |                         Token::String => try!(<String>::from_json(items)),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:21
[INFO] [stderr]     |
[INFO] [stderr] 372 |                     try!(items.expect(Token::Colon));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:373:35
[INFO] [stderr]     |
[INFO] [stderr] 373 |                     let v = match try!(items.peek_token()) {
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:380:44
[INFO] [stderr]     |
[INFO] [stderr] 380 |                         | Token::String => try!(<Json>::from_json(items)),
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:384:27
[INFO] [stderr]     |
[INFO] [stderr] 384 |                     match try!(items.next_token()) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:392:43
[INFO] [stderr]     |
[INFO] [stderr] 392 |             Token::Bool => Ok(Json::Bool( try!(<bool as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:394:55
[INFO] [stderr]     |
[INFO] [stderr] 394 |             Token::NumberInteger => Ok(Json::Integer( try!(<i64 as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:395:49
[INFO] [stderr]     |
[INFO] [stderr] 395 |             Token::NumberReal => Ok(Json::Real( try!(<f64 as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:396:47
[INFO] [stderr]     |
[INFO] [stderr] 396 |             Token::String => Ok(Json::String( try!(<String as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:404:20
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let item = try!(items.expect(Token::String));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:411:20
[INFO] [stderr]     |
[INFO] [stderr] 411 |         let item = try!(items.expect(Token::Bool));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:418:20
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let item = try!(items.expect(Token::NumberInteger));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:425:20
[INFO] [stderr]     |
[INFO] [stderr] 425 |         let item = try!(items.expect(Token::NumberInteger));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:432:20
[INFO] [stderr]     |
[INFO] [stderr] 432 |         let item = try!(items.expect(Token::NumberReal));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:454:46
[INFO] [stderr]     |
[INFO] [stderr] 454 |                     write!(&mut buf, "{}, ", try!((*elt).to_json()));
[INFO] [stderr]     |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:472:58
[INFO] [stderr]     |
[INFO] [stderr] 472 |                     write!(&mut buf, "\"{}\": {}, ", *k, try!((*v).to_json()));
[INFO] [stderr]     |                                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lib.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |                 '+'|'-'|'0'...'9' => self.scan_number(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: patterns aren't allowed in functions without bodies
[INFO] [stderr]    --> src/lib.rs:336:18
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn from_json(mut items: &mut ItemReader) -> io::Result<Self>;
[INFO] [stderr]     |                  ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[deny(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:305:20
[INFO] [stderr]     |
[INFO] [stderr] 305 |         let item = try!(self.next());
[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/lib.rs:341:15
[INFO] [stderr]     |
[INFO] [stderr] 341 |         match try!(items.peek_token()) {
[INFO] [stderr]     |               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:344:17
[INFO] [stderr]     |
[INFO] [stderr] 344 |                 try!(items.expect(Token::BeginArray));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:346:27
[INFO] [stderr]     |
[INFO] [stderr] 346 |                     match try!(items.peek_token()) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:353:51
[INFO] [stderr]     |
[INFO] [stderr] 353 |                         | Token::String => v.push(try!(<Json>::from_json(items))),
[INFO] [stderr]     |                                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:356:27
[INFO] [stderr]     |
[INFO] [stderr] 356 |                     match try!(items.next_token()) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:366:17
[INFO] [stderr]     |
[INFO] [stderr] 366 |                 try!(items.expect(Token::BeginObject));
[INFO] [stderr]     |                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:368:35
[INFO] [stderr]     |
[INFO] [stderr] 368 |                     let k = match try!(items.peek_token()) {
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:369:42
[INFO] [stderr]     |
[INFO] [stderr] 369 |                         Token::String => try!(<String>::from_json(items)),
[INFO] [stderr]     |                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:372:21
[INFO] [stderr]     |
[INFO] [stderr] 372 |                     try!(items.expect(Token::Colon));
[INFO] [stderr]     |                     ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:373:35
[INFO] [stderr]     |
[INFO] [stderr] 373 |                     let v = match try!(items.peek_token()) {
[INFO] [stderr]     |                                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:380:44
[INFO] [stderr]     |
[INFO] [stderr] 380 |                         | Token::String => try!(<Json>::from_json(items)),
[INFO] [stderr]     |                                            ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:384:27
[INFO] [stderr]     |
[INFO] [stderr] 384 |                     match try!(items.next_token()) {
[INFO] [stderr]     |                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:392:43
[INFO] [stderr]     |
[INFO] [stderr] 392 |             Token::Bool => Ok(Json::Bool( try!(<bool as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                           ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:394:55
[INFO] [stderr]     |
[INFO] [stderr] 394 |             Token::NumberInteger => Ok(Json::Integer( try!(<i64 as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                                       ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:395:49
[INFO] [stderr]     |
[INFO] [stderr] 395 |             Token::NumberReal => Ok(Json::Real( try!(<f64 as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                                 ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:396:47
[INFO] [stderr]     |
[INFO] [stderr] 396 |             Token::String => Ok(Json::String( try!(<String as FromJson>::from_json(items)) )),
[INFO] [stderr]     |                                               ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:404:20
[INFO] [stderr]     |
[INFO] [stderr] 404 |         let item = try!(items.expect(Token::String));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:411:20
[INFO] [stderr]     |
[INFO] [stderr] 411 |         let item = try!(items.expect(Token::Bool));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:418:20
[INFO] [stderr]     |
[INFO] [stderr] 418 |         let item = try!(items.expect(Token::NumberInteger));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:425:20
[INFO] [stderr]     |
[INFO] [stderr] 425 |         let item = try!(items.expect(Token::NumberInteger));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:432:20
[INFO] [stderr]     |
[INFO] [stderr] 432 |         let item = try!(items.expect(Token::NumberReal));
[INFO] [stderr]     |                    ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:454:46
[INFO] [stderr]     |
[INFO] [stderr] 454 |                     write!(&mut buf, "{}, ", try!((*elt).to_json()));
[INFO] [stderr]     |                                              ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: use of deprecated item 'try': use the `?` operator instead
[INFO] [stderr]    --> src/lib.rs:472:58
[INFO] [stderr]     |
[INFO] [stderr] 472 |                     write!(&mut buf, "\"{}\": {}, ", *k, try!((*v).to_json()));
[INFO] [stderr]     |                                                          ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lib.rs:164:28
[INFO] [stderr]     |
[INFO] [stderr] 164 |                 '+'|'-'|'0'...'9' => self.scan_number(),
[INFO] [stderr]     |                            ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error: patterns aren't allowed in functions without bodies
[INFO] [stderr]    --> src/lib.rs:336:18
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn from_json(mut items: &mut ItemReader) -> io::Result<Self>;
[INFO] [stderr]     |                  ^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[deny(patterns_in_fns_without_body)]` on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] error[E0277]: the trait bound `Token: std::clone::Clone` is not satisfied
[INFO] [stderr]    --> src/lib.rs:9:10
[INFO] [stderr]     |
[INFO] [stderr] 9   | #[derive(Copy, Debug, PartialEq)]
[INFO] [stderr]     |          ^^^^ the trait `std::clone::Clone` is not implemented for `Token`
[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[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]    --> src/lib.rs:336:49
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn from_json(mut items: &mut ItemReader) -> io::Result<Self>;
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^- help: consider further restricting `Self`: `where Self: std::marker::Sized`
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `json`.
[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[E0277]: the trait bound `Token: std::clone::Clone` is not satisfied
[INFO] [stderr]    --> src/lib.rs:9:10
[INFO] [stderr]     |
[INFO] [stderr] 9   | #[derive(Copy, Debug, PartialEq)]
[INFO] [stderr]     |          ^^^^ the trait `std::clone::Clone` is not implemented for `Token`
[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[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]    --> src/lib.rs:336:49
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn from_json(mut items: &mut ItemReader) -> io::Result<Self>;
[INFO] [stderr]     |                                                 ^^^^^^^^^^^^^^^^- help: consider further restricting `Self`: `where Self: std::marker::Sized`
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 doesn't have a size known at compile-time
[INFO] [stderr]     |
[INFO] [stderr]     = help: the trait `std::marker::Sized` is not implemented for `Self`
[INFO] [stderr]     = note: to learn more, visit <https://doc.rust-lang.org/book/ch19-04-advanced-types.html#dynamically-sized-types-and-the-sized-trait>
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 3 previous errors; 25 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] For more information about this error, try `rustc --explain E0277`.
[INFO] [stderr] error: could not compile `json`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "2a896b7f91d458ae89db6759989269ce7ac81f3c48f598f8fa9ddea54641ef74"`
[INFO] running `"docker" "rm" "-f" "2a896b7f91d458ae89db6759989269ce7ac81f3c48f598f8fa9ddea54641ef74"`
[INFO] [stdout] 2a896b7f91d458ae89db6759989269ce7ac81f3c48f598f8fa9ddea54641ef74