Sep 04 13:12:47.240 INFO checking json-codec-0.5.0 against master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c for pr-53893
Sep 04 13:12:47.241 INFO running: cargo +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets
Sep 04 13:12:47.241 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-3/pr-53893/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53893/worker-3/master#28bcffead74d5e17c6cb1f7de432e37f93a6b50c:/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 +28bcffead74d5e17c6cb1f7de432e37f93a6b50c-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 04 13:12:47.422 INFO blam! f2c7d20ef160675365fd2f0767cf76381b51508843580b44568f245b4eed40ee
Sep 04 13:12:47.424 INFO running `"docker" "start" "-a" "f2c7d20ef160675365fd2f0767cf76381b51508843580b44568f245b4eed40ee"`
Sep 04 13:12:48.106 INFO kablam!     Checking json-codec v0.5.0 (file:///source)
Sep 04 13:12:50.771 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 04 13:12:50.772 INFO kablam!    --> tests/properties.rs:132:13
Sep 04 13:12:50.772 INFO kablam!     |
Sep 04 13:12:50.772 INFO kablam! 132 |     match g.gen_range(1, 8) {
Sep 04 13:12:50.772 INFO kablam!     |             ^^^^^^^^^
Sep 04 13:12:50.772 INFO kablam!     |
Sep 04 13:12:50.772 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:50.772 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:50.772 INFO kablam!     |
Sep 04 13:12:50.772 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:50.772 INFO kablam!     |
Sep 04 13:12:50.772 INFO kablam! 
Sep 04 13:12:50.773 INFO kablam! error[E0599]: no method named `gen` found for type `&mut G` in the current scope
Sep 04 13:12:50.773 INFO kablam!    --> tests/properties.rs:135:29
Sep 04 13:12:50.773 INFO kablam!     |
Sep 04 13:12:50.773 INFO kablam! 135 |         3 => Json::Number(g.gen()),
Sep 04 13:12:50.773 INFO kablam!     |                             ^^^
Sep 04 13:12:50.773 INFO kablam!     |
Sep 04 13:12:50.773 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:50.773 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:50.773 INFO kablam!     |
Sep 04 13:12:50.773 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:50.773 INFO kablam!     |
Sep 04 13:12:50.773 INFO kablam! 
Sep 04 13:12:50.783 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 04 13:12:50.783 INFO kablam!    --> tests/properties.rs:154:21
Sep 04 13:12:50.783 INFO kablam!     |
Sep 04 13:12:50.783 INFO kablam! 154 |     let     len = g.gen_range(0, 64);
Sep 04 13:12:50.783 INFO kablam!     |                     ^^^^^^^^^
Sep 04 13:12:50.783 INFO kablam!     |
Sep 04 13:12:50.783 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:50.783 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:50.783 INFO kablam!     |
Sep 04 13:12:50.783 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:50.783 INFO kablam!     |
Sep 04 13:12:50.783 INFO kablam! 
Sep 04 13:12:50.788 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 04 13:12:50.788 INFO kablam!    --> tests/properties.rs:163:21
Sep 04 13:12:50.788 INFO kablam!     |
Sep 04 13:12:50.788 INFO kablam! 163 |     let     len = g.gen_range(0, 64);
Sep 04 13:12:50.788 INFO kablam!     |                     ^^^^^^^^^
Sep 04 13:12:50.788 INFO kablam!     |
Sep 04 13:12:50.788 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 04 13:12:50.788 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 04 13:12:50.788 INFO kablam!     |
Sep 04 13:12:50.788 INFO kablam! 4   | use rand::Rng;
Sep 04 13:12:50.789 INFO kablam!     |
Sep 04 13:12:50.789 INFO kablam! 
Sep 04 13:12:50.798 INFO kablam! error: aborting due to 4 previous errors
Sep 04 13:12:50.798 INFO kablam! 
Sep 04 13:12:50.798 INFO kablam! For more information about this error, try `rustc --explain E0599`.
Sep 04 13:12:50.808 INFO kablam! error: Could not compile `json-codec`.
Sep 04 13:12:50.808 INFO kablam! 
Sep 04 13:12:50.808 INFO kablam! To learn more, run the command again with --verbose.
Sep 04 13:12:50.810 INFO kablam! su: No module specific data is present
Sep 04 13:12:51.186 INFO running `"docker" "rm" "-f" "f2c7d20ef160675365fd2f0767cf76381b51508843580b44568f245b4eed40ee"`
Sep 04 13:12:51.294 INFO blam! f2c7d20ef160675365fd2f0767cf76381b51508843580b44568f245b4eed40ee