Sep 04 13:12:45.497 INFO checking json-codec-0.5.0 against try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0 for pr-53893
Sep 04 13:12:45.497 INFO running: cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets
Sep 04 13:12:45.497 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-0/pr-53893/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-0/try#6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0:/target:rw,Z" "-v" "/home/ec2-user/crater/./work/local/cargo-home:/cargo-home:ro,Z" "-v" "/home/ec2-user/crater/./work/local/rustup-home:/rustup-home:ro,Z" "-e" "USER_ID=500" "-e" "CMD=cargo +6b43b862fabb13a0ce2a5371ea1e77ee1674b7e0-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 13:12:45.661 INFO blam! d803623ea1c5ad2f67a50103a623aa42d0d921a58157afbe5d145b6c0eec9513
Sep 04 13:12:45.663 INFO running `"docker" "start" "-a" "d803623ea1c5ad2f67a50103a623aa42d0d921a58157afbe5d145b6c0eec9513"`
Sep 04 13:12:46.410 INFO kablam!     Checking json-codec v0.5.0 (file:///source)
Sep 04 13:12:49.242 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 04 13:12:49.242 INFO kablam!    --> tests/properties.rs:132:13
Sep 04 13:12:49.242 INFO kablam!     |
Sep 04 13:12:49.242 INFO kablam! 132 |     match g.gen_range(1, 8) {
Sep 04 13:12:49.242 INFO kablam!     |             ^^^^^^^^^
Sep 04 13:12:49.242 INFO kablam!     |
Sep 04 13:12:49.242 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:49.242 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:49.242 INFO kablam!     |
Sep 04 13:12:49.242 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:49.242 INFO kablam!     |
Sep 04 13:12:49.242 INFO kablam! 
Sep 04 13:12:49.244 INFO kablam! error[E0599]: no method named `gen` found for type `&mut G` in the current scope
Sep 04 13:12:49.244 INFO kablam!    --> tests/properties.rs:135:29
Sep 04 13:12:49.244 INFO kablam!     |
Sep 04 13:12:49.244 INFO kablam! 135 |         3 => Json::Number(g.gen()),
Sep 04 13:12:49.244 INFO kablam!     |                             ^^^
Sep 04 13:12:49.244 INFO kablam!     |
Sep 04 13:12:49.244 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:49.244 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:49.244 INFO kablam!     |
Sep 04 13:12:49.244 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:49.244 INFO kablam!     |
Sep 04 13:12:49.244 INFO kablam! 
Sep 04 13:12:49.253 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 04 13:12:49.253 INFO kablam!    --> tests/properties.rs:154:21
Sep 04 13:12:49.253 INFO kablam!     |
Sep 04 13:12:49.253 INFO kablam! 154 |     let     len = g.gen_range(0, 64);
Sep 04 13:12:49.253 INFO kablam!     |                     ^^^^^^^^^
Sep 04 13:12:49.253 INFO kablam!     |
Sep 04 13:12:49.254 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:49.254 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:49.254 INFO kablam!     |
Sep 04 13:12:49.254 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:49.254 INFO kablam!     |
Sep 04 13:12:49.254 INFO kablam! 
Sep 04 13:12:49.259 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 04 13:12:49.259 INFO kablam!    --> tests/properties.rs:163:21
Sep 04 13:12:49.259 INFO kablam!     |
Sep 04 13:12:49.259 INFO kablam! 163 |     let     len = g.gen_range(0, 64);
Sep 04 13:12:49.259 INFO kablam!     |                     ^^^^^^^^^
Sep 04 13:12:49.259 INFO kablam!     |
Sep 04 13:12:49.259 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:49.259 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:49.259 INFO kablam!     |
Sep 04 13:12:49.259 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:49.259 INFO kablam!     |
Sep 04 13:12:49.259 INFO kablam! 
Sep 04 13:12:49.268 INFO kablam! error: aborting due to 4 previous errors
Sep 04 13:12:49.268 INFO kablam! 
Sep 04 13:12:49.269 INFO kablam! For more information about this error, try `rustc --explain E0599`.
Sep 04 13:12:49.279 INFO kablam! error: Could not compile `json-codec`.
Sep 04 13:12:49.279 INFO kablam! 
Sep 04 13:12:49.279 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 13:12:49.281 INFO kablam! su: No module specific data is present
Sep 04 13:12:49.675 INFO running `"docker" "rm" "-f" "d803623ea1c5ad2f67a50103a623aa42d0d921a58157afbe5d145b6c0eec9513"`
Sep 04 13:12:49.770 INFO blam! d803623ea1c5ad2f67a50103a623aa42d0d921a58157afbe5d145b6c0eec9513