Oct 12 13:43:34.004 INFO checking simbo1905/extension_methods against master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f for pr-54977
Oct 12 13:43:34.006 INFO running `"docker" "create" "-v" "/mnt/big/crater/./work/local/target-dirs/pr-54977/worker-0/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/target:rw,Z" "-v" "/mnt/big/crater/./work/local/test-source/worker-0/pr-54977/master#5af0bb83044c3fb43d59ad5f49ee5ae1a293901f:/source:ro,Z" "-v" "/mnt/big/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/mnt/big/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/source" "-e" "USER_ID=1000" "-e" "CMD=cargo +5af0bb83044c3fb43d59ad5f49ee5ae1a293901f-alt check --frozen --all --all-targets" "-e" "CARGO_TARGET_DIR=/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/cargo-home" "-e" "RUSTUP_HOME=/rustup-home" "-m" "1536M" "--network" "none" "crater"`
Oct 12 13:43:34.373 INFO blam! 14b5faa1330291e14dab0cab1dfd5f30a8854f378177f30ec3ba0a74e0c70df5
Oct 12 13:43:34.378 INFO running `"docker" "start" "-a" "14b5faa1330291e14dab0cab1dfd5f30a8854f378177f30ec3ba0a74e0c70df5"`
Oct 12 13:43:36.080 INFO kablam! usermod: no changes
Oct 12 13:43:36.210 INFO kablam!     Checking serde v1.0.10
Oct 12 13:43:36.232 INFO kablam!     Checking num-traits v0.1.39
Oct 12 13:43:36.234 INFO kablam!     Checking some_library v0.1.0 (/source/some_library)
Oct 12 13:43:36.258 INFO kablam!    Compiling serde_derive v1.0.10
Oct 12 13:43:51.070 INFO kablam!     Checking serde_json v1.0.2
Oct 12 13:43:53.288 INFO kablam!     Checking some_extension v0.1.0 (/source/some_extension)
Oct 12 13:43:53.668 INFO kablam! warning: the trait `JSON` cannot be made into an object
Oct 12 13:43:53.668 INFO kablam!   --> some_extension/src/lib.rs:39:5
Oct 12 13:43:53.668 INFO kablam!    |
Oct 12 13:43:53.668 INFO kablam! 39 | /     fn to_json(&self) -> String
Oct 12 13:43:53.668 INFO kablam! 40 | |             where Self: Serialize {
Oct 12 13:43:53.668 INFO kablam! 41 | |         return serde_json::to_string(&self).unwrap();
Oct 12 13:43:53.668 INFO kablam! 42 | |     }
Oct 12 13:43:53.668 INFO kablam!    | |_____^
Oct 12 13:43:53.668 INFO kablam!    |
Oct 12 13:43:53.668 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Oct 12 13:43:53.669 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Oct 12 13:43:53.669 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Oct 12 13:43:53.669 INFO kablam!    = note: method `to_json` references the `Self` type in where clauses
Oct 12 13:43:53.669 INFO kablam! 
Oct 12 13:43:53.781 INFO kablam!     Checking extension_methods v0.1.0 (/source)
Oct 12 13:43:54.981 INFO kablam! warning: the trait `some_extension::JSON` cannot be made into an object
Oct 12 13:43:54.982 INFO kablam!   --> /source/some_extension/src/lib.rs:39:5
Oct 12 13:43:54.983 INFO kablam!    |
Oct 12 13:43:54.984 INFO kablam! 39 | /     fn to_json(&self) -> String
Oct 12 13:43:54.984 INFO kablam! 40 | |             where Self: Serialize {
Oct 12 13:43:54.985 INFO kablam! 41 | |         return serde_json::to_string(&self).unwrap();
Oct 12 13:43:54.985 INFO kablam! 42 | |     }
Oct 12 13:43:54.986 INFO kablam!    | |_____^
Oct 12 13:43:54.986 INFO kablam!    |
Oct 12 13:43:54.987 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Oct 12 13:43:54.988 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Oct 12 13:43:54.988 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Oct 12 13:43:54.989 INFO kablam!    = note: method `to_json` references the `Self` type in where clauses
Oct 12 13:43:54.992 INFO kablam! 
Oct 12 13:43:55.041 INFO kablam! warning: the trait `some_extension::JSON` cannot be made into an object
Oct 12 13:43:55.041 INFO kablam!   --> /source/some_extension/src/lib.rs:39:5
Oct 12 13:43:55.041 INFO kablam!    |
Oct 12 13:43:55.041 INFO kablam! 39 | /     fn to_json(&self) -> String
Oct 12 13:43:55.042 INFO kablam! 40 | |             where Self: Serialize {
Oct 12 13:43:55.043 INFO kablam! 41 | |         return serde_json::to_string(&self).unwrap();
Oct 12 13:43:55.043 INFO kablam! 42 | |     }
Oct 12 13:43:55.043 INFO kablam!    | |_____^
Oct 12 13:43:55.044 INFO kablam!    |
Oct 12 13:43:55.044 INFO kablam!    = note: #[warn(where_clauses_object_safety)] on by default
Oct 12 13:43:55.044 INFO kablam!    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Oct 12 13:43:55.044 INFO kablam!    = note: for more information, see issue #51443 <https://github.com/rust-lang/rust/issues/51443>
Oct 12 13:43:55.044 INFO kablam!    = note: method `to_json` references the `Self` type in where clauses
Oct 12 13:43:55.044 INFO kablam! 
Oct 12 13:43:55.129 INFO kablam!     Finished dev [unoptimized + debuginfo] target(s) in 19.02s
Oct 12 13:43:55.141 INFO kablam! su: No module specific data is present
Oct 12 13:43:56.702 INFO running `"docker" "rm" "-f" "14b5faa1330291e14dab0cab1dfd5f30a8854f378177f30ec3ba0a74e0c70df5"`
Oct 12 13:43:56.955 INFO blam! 14b5faa1330291e14dab0cab1dfd5f30a8854f378177f30ec3ba0a74e0c70df5