[INFO] updating cached repository https://github.com/toqueteos/rust-json
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/big/crater/work/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] testing toqueteos/rust-json against 1.38.0 for beta-1.39-1
[INFO] running `"git" "clone" "work/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftoqueteos%2Frust-json" "work/builds/worker-5/source"`
[INFO] [stderr] Cloning into 'work/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/toqueteos/rust-json on toolchain 1.38.0
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "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 work/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/toqueteos/rust-json already has a lockfile, it will not be regenerated
[INFO] running `"/big/crater/work/cargo-home/bin/cargo" "+1.38.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/big/crater/work/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/big/crater/work/builds/worker-5/source:/opt/rustwide/workdir:ro,Z" "-v" "/big/crater/work/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/big/crater/work/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=1000" "-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" "/opt/rustwide/cargo-home/bin/cargo" "+1.38.0" "build" "--frozen"`
[INFO] [stdout] 24cd430345dd87dfd89c72bdf31935850bd2c657bf31d758e8a3853b439877d9
[INFO] running `"docker" "start" "-a" "24cd430345dd87dfd89c72bdf31935850bd2c657bf31d758e8a3853b439877d9"`
[INFO] [stderr]    Compiling json v0.0.1 (/opt/rustwide/workdir)
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:1:1
[INFO] [stderr]   |
[INFO] [stderr] 1 | #![feature(io)]
[INFO] [stderr]   | ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stderr]  --> src/lib.rs:2:1
[INFO] [stderr]   |
[INFO] [stderr] 2 | #![feature(old_io)]
[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] warning: patterns aren't allowed in methods 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: `#[warn(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] error[E0277]: the size for values of type `Self` cannot be known at compilation time
[INFO] [stderr]    --> src/lib.rs:336:5
[INFO] [stderr]     |
[INFO] [stderr] 336 |     fn from_json(mut items: &mut ItemReader) -> io::Result<Self>;
[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]     = help: consider adding a `where Self: std::marker::Sized` bound
[INFO] [stderr]     = note: required by `std::result::Result`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 4 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0277, E0554.
[INFO] [stderr] For more information about an 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" "24cd430345dd87dfd89c72bdf31935850bd2c657bf31d758e8a3853b439877d9"`
[INFO] running `"docker" "rm" "-f" "24cd430345dd87dfd89c72bdf31935850bd2c657bf31d758e8a3853b439877d9"`
[INFO] [stdout] 24cd430345dd87dfd89c72bdf31935850bd2c657bf31d758e8a3853b439877d9