Dec 19 15:50:50.530 INFO checking idubrov/crazy-traits against try#e70472fc501b855c9080f3772432c10fe20b8866 for pr-56955
Dec 19 15:50:50.530 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56955/worker-3/try#e70472fc501b855c9080f3772432c10fe20b8866:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-56955/sources/try#e70472fc501b855c9080f3772432c10fe20b8866/gh/idubrov/crazy-traits:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+e70472fc501b855c9080f3772432c10fe20b8866-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 19 15:50:50.719 INFO [stdout] 423a26588f18f0c7a4a40636bde1100a904aca35a4d93d99f55b39fbc1a21021
Dec 19 15:50:50.748 INFO running `"docker" "start" "-a" "423a26588f18f0c7a4a40636bde1100a904aca35a4d93d99f55b39fbc1a21021"`
Dec 19 15:50:51.433 INFO [stderr]    Compiling owning_ref v0.3.3
Dec 19 15:50:51.434 INFO [stderr]     Checking memmap v0.6.2
Dec 19 15:50:51.726 INFO [stderr]     Checking dynasmrt v0.2.3
Dec 19 15:50:51.764 INFO [stderr]    Compiling dynasm v0.2.3
Dec 19 15:51:04.296 INFO [stderr]     Checking crazy-traits v0.1.0 (/opt/crater/workdir)
Dec 19 15:51:04.904 INFO [stderr] warning: struct is never constructed: `Wrapper`
Dec 19 15:51:04.904 INFO [stderr]  --> src/arena.rs:6:1
Dec 19 15:51:04.904 INFO [stderr]   |
Dec 19 15:51:04.904 INFO [stderr] 6 | struct Wrapper {
Dec 19 15:51:04.904 INFO [stderr]   | ^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr]   |
Dec 19 15:51:04.904 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: struct is never constructed: `TypeSystem`
Dec 19 15:51:04.904 INFO [stderr]   --> src/arena.rs:21:1
Dec 19 15:51:04.904 INFO [stderr]    |
Dec 19 15:51:04.904 INFO [stderr] 21 | struct TypeSystem {
Dec 19 15:51:04.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: method is never used: `new`
Dec 19 15:51:04.904 INFO [stderr]   --> src/arena.rs:26:5
Dec 19 15:51:04.904 INFO [stderr]    |
Dec 19 15:51:04.904 INFO [stderr] 26 |     pub fn new() -> Self {
Dec 19 15:51:04.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: method is never used: `annotate`
Dec 19 15:51:04.904 INFO [stderr]   --> src/arena.rs:32:5
Dec 19 15:51:04.904 INFO [stderr]    |
Dec 19 15:51:04.904 INFO [stderr] 32 |     pub fn annotate<'a: 'b, 'b>(&'a self, input: &'b String, type_name: &str) -> &'b dyn Object {
Dec 19 15:51:04.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: struct is never constructed: `TraitObject`
Dec 19 15:51:04.904 INFO [stderr]   --> src/dynvtable.rs:13:1
Dec 19 15:51:04.904 INFO [stderr]    |
Dec 19 15:51:04.904 INFO [stderr] 13 | struct TraitObject {
Dec 19 15:51:04.904 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: field is never used: `vtable`
Dec 19 15:51:04.904 INFO [stderr]   --> src/dynvtable.rs:43:5
Dec 19 15:51:04.904 INFO [stderr]    |
Dec 19 15:51:04.904 INFO [stderr] 43 |     vtable: ObjectVirtualTable,
Dec 19 15:51:04.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: field is never used: `infos`
Dec 19 15:51:04.904 INFO [stderr]   --> src/dynvtable.rs:50:5
Dec 19 15:51:04.904 INFO [stderr]    |
Dec 19 15:51:04.904 INFO [stderr] 50 |     infos: RefCell<HashMap<String, TypeInfo>>,
Dec 19 15:51:04.904 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.904 INFO [stderr] 
Dec 19 15:51:04.904 INFO [stderr] warning: method is never used: `annotate`
Dec 19 15:51:04.905 INFO [stderr]   --> src/dynvtable.rs:54:5
Dec 19 15:51:04.905 INFO [stderr]    |
Dec 19 15:51:04.905 INFO [stderr] 54 |     pub fn annotate<'a: 'b, 'b>(&'a self, input: &'b String, type_name: &str) -> &'b dyn Object {
Dec 19 15:51:04.905 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.905 INFO [stderr] 
Dec 19 15:51:04.910 INFO [stderr] warning: struct is never constructed: `Wrapper`
Dec 19 15:51:04.910 INFO [stderr]  --> src/leaking.rs:6:1
Dec 19 15:51:04.910 INFO [stderr]   |
Dec 19 15:51:04.910 INFO [stderr] 6 | struct Wrapper<'a> {
Dec 19 15:51:04.910 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.910 INFO [stderr] 
Dec 19 15:51:04.910 INFO [stderr] warning: function is never used: `annotate`
Dec 19 15:51:04.910 INFO [stderr]   --> src/leaking.rs:21:1
Dec 19 15:51:04.910 INFO [stderr]    |
Dec 19 15:51:04.910 INFO [stderr] 21 | fn annotate<'a>(input: &'a String, type_name: &str) -> &'a dyn Object {
Dec 19 15:51:04.910 INFO [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 19 15:51:04.916 INFO [stderr] 
Dec 19 15:51:04.967 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 13.57s
Dec 19 15:51:05.772 INFO running `"docker" "inspect" "423a26588f18f0c7a4a40636bde1100a904aca35a4d93d99f55b39fbc1a21021"`
Dec 19 15:51:06.088 INFO running `"docker" "rm" "-f" "423a26588f18f0c7a4a40636bde1100a904aca35a4d93d99f55b39fbc1a21021"`
Dec 19 15:51:06.391 INFO [stdout] 423a26588f18f0c7a4a40636bde1100a904aca35a4d93d99f55b39fbc1a21021