Dec 18 08:24:22.833 INFO checking Berteun/rust-toy-list against try#0b8c5828f68d7b2840b81fa51239346dc97fef5a for pr-54252
Dec 18 08:24:22.833 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-5/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/try#0b8c5828f68d7b2840b81fa51239346dc97fef5a/gh/Berteun/rust-toy-list:/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" "+0b8c5828f68d7b2840b81fa51239346dc97fef5a-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 18 08:24:23.356 INFO [stdout] 2b1d2df957bebe5fd9b0904a7603137855b5979ee4a81b151ea92ba7417804cd
Dec 18 08:24:23.362 INFO running `"docker" "start" "-a" "2b1d2df957bebe5fd9b0904a7603137855b5979ee4a81b151ea92ba7417804cd"`
Dec 18 08:24:24.529 INFO [stderr]     Checking reverse v0.1.0 (/opt/crater/workdir)
Dec 18 08:24:24.816 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 18 08:24:24.816 INFO [stderr]   --> src/list/mod.rs:65:5
Dec 18 08:24:24.816 INFO [stderr]    |
Dec 18 08:24:24.816 INFO [stderr] 65 | /     pub fn first(&self) -> Option<&Node<T>>
Dec 18 08:24:24.816 INFO [stderr] 66 | |     {
Dec 18 08:24:24.816 INFO [stderr] 67 | |         match self.head
Dec 18 08:24:24.816 INFO [stderr] 68 | |         {
Dec 18 08:24:24.816 INFO [stderr] ...  |
Dec 18 08:24:24.816 INFO [stderr] 71 | |         }
Dec 18 08:24:24.816 INFO [stderr] 72 | |     }
Dec 18 08:24:24.816 INFO [stderr]    | |_____^
Dec 18 08:24:24.816 INFO [stderr]    |
Dec 18 08:24:24.816 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 18 08:24:24.816 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 18 08:24:24.816 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 08:24:24.816 INFO [stderr] 
Dec 18 08:24:24.816 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 18 08:24:24.816 INFO [stderr]   --> src/list/mod.rs:74:5
Dec 18 08:24:24.816 INFO [stderr]    |
Dec 18 08:24:24.816 INFO [stderr] 74 | /     pub fn last(&self) -> Option<&Node<T>>
Dec 18 08:24:24.816 INFO [stderr] 75 | |     {
Dec 18 08:24:24.816 INFO [stderr] 76 | |         match self.head {
Dec 18 08:24:24.816 INFO [stderr] 77 | |             Some(ref boxed_node) => Some(boxed_node.last()),
Dec 18 08:24:24.816 INFO [stderr] 78 | |             None => None
Dec 18 08:24:24.816 INFO [stderr] 79 | |         }
Dec 18 08:24:24.816 INFO [stderr] 80 | |     }
Dec 18 08:24:24.816 INFO [stderr]    | |_____^
Dec 18 08:24:24.816 INFO [stderr]    |
Dec 18 08:24:24.816 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 18 08:24:24.816 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 08:24:24.816 INFO [stderr] 
Dec 18 08:24:24.913 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 18 08:24:24.913 INFO [stderr]   --> src/list/mod.rs:65:5
Dec 18 08:24:24.913 INFO [stderr]    |
Dec 18 08:24:24.913 INFO [stderr] 65 | /     pub fn first(&self) -> Option<&Node<T>>
Dec 18 08:24:24.913 INFO [stderr] 66 | |     {
Dec 18 08:24:24.913 INFO [stderr] 67 | |         match self.head
Dec 18 08:24:24.913 INFO [stderr] 68 | |         {
Dec 18 08:24:24.913 INFO [stderr] ...  |
Dec 18 08:24:24.913 INFO [stderr] 71 | |         }
Dec 18 08:24:24.913 INFO [stderr] 72 | |     }
Dec 18 08:24:24.913 INFO [stderr]    | |_____^
Dec 18 08:24:24.913 INFO [stderr]    |
Dec 18 08:24:24.913 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 18 08:24:24.913 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 18 08:24:24.913 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 08:24:24.913 INFO [stderr] 
Dec 18 08:24:24.913 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 18 08:24:24.913 INFO [stderr]   --> src/list/mod.rs:74:5
Dec 18 08:24:24.913 INFO [stderr]    |
Dec 18 08:24:24.913 INFO [stderr] 74 | /     pub fn last(&self) -> Option<&Node<T>>
Dec 18 08:24:24.913 INFO [stderr] 75 | |     {
Dec 18 08:24:24.913 INFO [stderr] 76 | |         match self.head {
Dec 18 08:24:24.913 INFO [stderr] 77 | |             Some(ref boxed_node) => Some(boxed_node.last()),
Dec 18 08:24:24.913 INFO [stderr] 78 | |             None => None
Dec 18 08:24:24.914 INFO [stderr] 79 | |         }
Dec 18 08:24:24.914 INFO [stderr] 80 | |     }
Dec 18 08:24:24.914 INFO [stderr]    | |_____^
Dec 18 08:24:24.914 INFO [stderr]    |
Dec 18 08:24:24.914 INFO [stderr]    = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
Dec 18 08:24:24.914 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 18 08:24:24.914 INFO [stderr] 
Dec 18 08:24:24.965 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.45s
Dec 18 08:24:25.304 INFO running `"docker" "inspect" "2b1d2df957bebe5fd9b0904a7603137855b5979ee4a81b151ea92ba7417804cd"`
Dec 18 08:24:25.413 INFO running `"docker" "rm" "-f" "2b1d2df957bebe5fd9b0904a7603137855b5979ee4a81b151ea92ba7417804cd"`
Dec 18 08:24:25.564 INFO [stdout] 2b1d2df957bebe5fd9b0904a7603137855b5979ee4a81b151ea92ba7417804cd