Dec 11 17:08:48.498 INFO checking idubrov/crazy-traits against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 11 17:08:48.498 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-7/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-7/pr-56677/master#3a75e80557a103497cffbcab395a2f37061a77ea:/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 +3a75e80557a103497cffbcab395a2f37061a77ea-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"`
Dec 11 17:08:48.890 INFO [stdout] 099e6ebea9825501223f3bf5941bfa6a835719ccb7e619e4abe95b524def6da3
Dec 11 17:08:48.890 INFO running `"docker" "start" "-a" "099e6ebea9825501223f3bf5941bfa6a835719ccb7e619e4abe95b524def6da3"`
Dec 11 17:08:50.087 INFO [stderr] usermod: no changes
Dec 11 17:08:50.180 INFO [stderr]    Compiling dynasm v0.2.3
Dec 11 17:08:50.192 INFO [stderr]     Checking dynasmrt v0.2.3
Dec 11 17:09:04.975 INFO [stderr]     Checking crazy-traits v0.1.0 (/source)
Dec 11 17:09:06.224 INFO [stderr] warning: struct is never constructed: `Wrapper`
Dec 11 17:09:06.224 INFO [stderr]  --> src/arena.rs:6:1
Dec 11 17:09:06.224 INFO [stderr]   |
Dec 11 17:09:06.224 INFO [stderr] 6 | struct Wrapper {
Dec 11 17:09:06.224 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 11 17:09:06.224 INFO [stderr]   |
Dec 11 17:09:06.225 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: struct is never constructed: `TypeSystem`
Dec 11 17:09:06.225 INFO [stderr]   --> src/arena.rs:21:1
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 21 | struct TypeSystem {
Dec 11 17:09:06.225 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: method is never used: `new`
Dec 11 17:09:06.225 INFO [stderr]   --> src/arena.rs:26:5
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 26 |     pub fn new() -> Self {
Dec 11 17:09:06.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: method is never used: `annotate`
Dec 11 17:09:06.225 INFO [stderr]   --> src/arena.rs:32:5
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 32 |     pub fn annotate<'a: 'b, 'b>(&'a self, input: &'b String, type_name: &str) -> &'b dyn Object {
Dec 11 17:09:06.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: struct is never constructed: `TraitObject`
Dec 11 17:09:06.225 INFO [stderr]   --> src/dynvtable.rs:13:1
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 13 | struct TraitObject {
Dec 11 17:09:06.225 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: field is never used: `vtable`
Dec 11 17:09:06.225 INFO [stderr]   --> src/dynvtable.rs:43:5
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 43 |     vtable: ObjectVirtualTable,
Dec 11 17:09:06.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: field is never used: `infos`
Dec 11 17:09:06.225 INFO [stderr]   --> src/dynvtable.rs:50:5
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 50 |     infos: RefCell<HashMap<String, TypeInfo>>,
Dec 11 17:09:06.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: method is never used: `annotate`
Dec 11 17:09:06.225 INFO [stderr]   --> src/dynvtable.rs:54:5
Dec 11 17:09:06.225 INFO [stderr]    |
Dec 11 17:09:06.225 INFO [stderr] 54 |     pub fn annotate<'a: 'b, 'b>(&'a self, input: &'b String, type_name: &str) -> &'b dyn Object {
Dec 11 17:09:06.225 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.225 INFO [stderr] warning: struct is never constructed: `Wrapper`
Dec 11 17:09:06.225 INFO [stderr]  --> src/leaking.rs:6:1
Dec 11 17:09:06.225 INFO [stderr]   |
Dec 11 17:09:06.225 INFO [stderr] 6 | struct Wrapper<'a> {
Dec 11 17:09:06.225 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.225 INFO [stderr] 
Dec 11 17:09:06.228 INFO [stderr] warning: function is never used: `annotate`
Dec 11 17:09:06.228 INFO [stderr]   --> src/leaking.rs:21:1
Dec 11 17:09:06.228 INFO [stderr]    |
Dec 11 17:09:06.228 INFO [stderr] 21 | fn annotate<'a>(input: &'a String, type_name: &str) -> &'a dyn Object {
Dec 11 17:09:06.228 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 11 17:09:06.228 INFO [stderr] 
Dec 11 17:09:06.359 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.23s
Dec 11 17:09:06.363 INFO [stderr] su: No module specific data is present
Dec 11 17:09:06.926 INFO running `"docker" "inspect" "099e6ebea9825501223f3bf5941bfa6a835719ccb7e619e4abe95b524def6da3"`
Dec 11 17:09:07.254 INFO running `"docker" "rm" "-f" "099e6ebea9825501223f3bf5941bfa6a835719ccb7e619e4abe95b524def6da3"`
Dec 11 17:09:07.500 INFO [stdout] 099e6ebea9825501223f3bf5941bfa6a835719ccb7e619e4abe95b524def6da3