Sep 01 16:20:31.930 INFO checking json-codec-0.5.0 against try#aa245a5862056b681d2ccdb178f58891108cd3a6 for pr-53831
Sep 01 16:20:31.930 INFO running: cargo +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets
Sep 01 16:20:31.930 INFO running `"docker" "create" "-v" "/home/ec2-user/crater/./work/local/test-source/worker-2/pr-53831/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/source:ro,Z" "-v" "/home/ec2-user/crater/./work/local/target-dirs/pr-53831/worker-2/try#aa245a5862056b681d2ccdb178f58891108cd3a6:/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 +aa245a5862056b681d2ccdb178f58891108cd3a6-alt check --frozen --all --all-targets" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-m" "2G" "crater"`
Sep 01 16:20:32.082 INFO blam! 567ce4c8edc9b83127c7db0936bd277f5ddecb66cf19f4a5b1f6be18a3690a2b
Sep 01 16:20:32.083 INFO running `"docker" "start" "-a" "567ce4c8edc9b83127c7db0936bd277f5ddecb66cf19f4a5b1f6be18a3690a2b"`
Sep 01 16:20:32.674 INFO kablam!     Checking json-codec v0.5.0 (file:///source)
Sep 01 16:20:35.745 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 01 16:20:35.745 INFO kablam!    --> tests/properties.rs:132:13
Sep 01 16:20:35.745 INFO kablam!     |
Sep 01 16:20:35.745 INFO kablam! 132 |     match g.gen_range(1, 8) {
Sep 01 16:20:35.745 INFO kablam!     |             ^^^^^^^^^
Sep 01 16:20:35.745 INFO kablam!     |
Sep 01 16:20:35.745 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 01 16:20:35.745 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 01 16:20:35.745 INFO kablam!     |
Sep 01 16:20:35.745 INFO kablam! 4   | use rand::Rng;
Sep 01 16:20:35.745 INFO kablam!     |
Sep 01 16:20:35.745 INFO kablam! 
Sep 01 16:20:35.746 INFO kablam! error[E0599]: no method named `gen` found for type `&mut G` in the current scope
Sep 01 16:20:35.746 INFO kablam!    --> tests/properties.rs:135:29
Sep 01 16:20:35.747 INFO kablam!     |
Sep 01 16:20:35.747 INFO kablam! 135 |         3 => Json::Number(g.gen()),
Sep 01 16:20:35.747 INFO kablam!     |                             ^^^
Sep 01 16:20:35.747 INFO kablam!     |
Sep 01 16:20:35.747 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 01 16:20:35.747 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 01 16:20:35.747 INFO kablam!     |
Sep 01 16:20:35.747 INFO kablam! 4   | use rand::Rng;
Sep 01 16:20:35.747 INFO kablam!     |
Sep 01 16:20:35.747 INFO kablam! 
Sep 01 16:20:35.755 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 01 16:20:35.755 INFO kablam!    --> tests/properties.rs:154:21
Sep 01 16:20:35.755 INFO kablam!     |
Sep 01 16:20:35.755 INFO kablam! 154 |     let     len = g.gen_range(0, 64);
Sep 01 16:20:35.755 INFO kablam!     |                     ^^^^^^^^^
Sep 01 16:20:35.755 INFO kablam!     |
Sep 01 16:20:35.755 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 01 16:20:35.755 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 01 16:20:35.755 INFO kablam!     |
Sep 01 16:20:35.755 INFO kablam! 4   | use rand::Rng;
Sep 01 16:20:35.755 INFO kablam!     |
Sep 01 16:20:35.755 INFO kablam! 
Sep 01 16:20:35.760 INFO kablam! error[E0599]: no method named `gen_range` found for type `&mut G` in the current scope
Sep 01 16:20:35.760 INFO kablam!    --> tests/properties.rs:163:21
Sep 01 16:20:35.760 INFO kablam!     |
Sep 01 16:20:35.760 INFO kablam! 163 |     let     len = g.gen_range(0, 64);
Sep 01 16:20:35.760 INFO kablam!     |                     ^^^^^^^^^
Sep 01 16:20:35.760 INFO kablam!     |
Sep 01 16:20:35.760 INFO kablam!     = help: items from traits can only be used if the trait is in scope
Sep 01 16:20:35.760 INFO kablam! help: the following trait is implemented but not in scope, perhaps add a `use` for it:
Sep 01 16:20:35.760 INFO kablam!     |
Sep 01 16:20:35.760 INFO kablam! 4   | use rand::Rng;
Sep 01 16:20:35.760 INFO kablam!     |
Sep 01 16:20:35.760 INFO kablam! 
Sep 01 16:20:35.768 INFO kablam! error: aborting due to 4 previous errors
Sep 01 16:20:35.769 INFO kablam! 
Sep 01 16:20:35.769 INFO kablam! For more information about this error, try `rustc --explain E0599`.
Sep 01 16:20:35.778 INFO kablam! error: Could not compile `json-codec`.
Sep 01 16:20:35.778 INFO kablam! 
Sep 01 16:20:35.778 INFO kablam! To learn more, run the command again with --verbose.
Sep 01 16:20:35.780 INFO kablam! su: No module specific data is present
Sep 01 16:20:36.412 INFO running `"docker" "rm" "-f" "567ce4c8edc9b83127c7db0936bd277f5ddecb66cf19f4a5b1f6be18a3690a2b"`
Sep 01 16:20:36.501 INFO blam! 567ce4c8edc9b83127c7db0936bd277f5ddecb66cf19f4a5b1f6be18a3690a2b