Dec 12 03:45:35.610 INFO checking Berteun/rust-toy-list against master#3a75e80557a103497cffbcab395a2f37061a77ea for pr-56677
Dec 12 03:45:35.610 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-56677/worker-0/master#3a75e80557a103497cffbcab395a2f37061a77ea:/target:rw,Z" "-v" "/mnt/big/crater/work/local/test-source/worker-0/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 12 03:45:36.040 INFO [stdout] c267486aa8803e0234e1b31e9e0c208e324ab94e1471ca0fb7ce647aa4d3918b
Dec 12 03:45:36.044 INFO running `"docker" "start" "-a" "c267486aa8803e0234e1b31e9e0c208e324ab94e1471ca0fb7ce647aa4d3918b"`
Dec 12 03:45:36.937 INFO [stderr] usermod: no changes
Dec 12 03:45:36.981 INFO [stderr]     Checking reverse v0.1.0 (/source)
Dec 12 03:45:37.585 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 12 03:45:37.585 INFO [stderr]   --> src/list/mod.rs:65:5
Dec 12 03:45:37.585 INFO [stderr]    |
Dec 12 03:45:37.585 INFO [stderr] 65 | /     pub fn first(&self) -> Option<&Node<T>>
Dec 12 03:45:37.585 INFO [stderr] 66 | |     {
Dec 12 03:45:37.585 INFO [stderr] 67 | |         match self.head
Dec 12 03:45:37.585 INFO [stderr] 68 | |         {
Dec 12 03:45:37.585 INFO [stderr] ...  |
Dec 12 03:45:37.585 INFO [stderr] 71 | |         }
Dec 12 03:45:37.585 INFO [stderr] 72 | |     }
Dec 12 03:45:37.585 INFO [stderr]    | |_____^
Dec 12 03:45:37.585 INFO [stderr]    |
Dec 12 03:45:37.585 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 12 03:45:37.585 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 12 03:45:37.585 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 12 03:45:37.585 INFO [stderr] 
Dec 12 03:45:37.585 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 12 03:45:37.585 INFO [stderr]   --> src/list/mod.rs:74:5
Dec 12 03:45:37.585 INFO [stderr]    |
Dec 12 03:45:37.585 INFO [stderr] 74 | /     pub fn last(&self) -> Option<&Node<T>>
Dec 12 03:45:37.585 INFO [stderr] 75 | |     {
Dec 12 03:45:37.585 INFO [stderr] 76 | |         match self.head {
Dec 12 03:45:37.585 INFO [stderr] 77 | |             Some(ref boxed_node) => Some(boxed_node.last()),
Dec 12 03:45:37.585 INFO [stderr] 78 | |             None => None
Dec 12 03:45:37.585 INFO [stderr] 79 | |         }
Dec 12 03:45:37.585 INFO [stderr] 80 | |     }
Dec 12 03:45:37.585 INFO [stderr]    | |_____^
Dec 12 03:45:37.585 INFO [stderr]    |
Dec 12 03:45:37.585 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 12 03:45:37.585 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 12 03:45:37.585 INFO [stderr] 
Dec 12 03:45:37.768 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 12 03:45:37.768 INFO [stderr]   --> src/list/mod.rs:65:5
Dec 12 03:45:37.768 INFO [stderr]    |
Dec 12 03:45:37.768 INFO [stderr] 65 | /     pub fn first(&self) -> Option<&Node<T>>
Dec 12 03:45:37.768 INFO [stderr] 66 | |     {
Dec 12 03:45:37.768 INFO [stderr] 67 | |         match self.head
Dec 12 03:45:37.768 INFO [stderr] 68 | |         {
Dec 12 03:45:37.768 INFO [stderr] ...  |
Dec 12 03:45:37.768 INFO [stderr] 71 | |         }
Dec 12 03:45:37.768 INFO [stderr] 72 | |     }
Dec 12 03:45:37.768 INFO [stderr]    | |_____^
Dec 12 03:45:37.768 INFO [stderr]    |
Dec 12 03:45:37.768 INFO [stderr]    = note: #[warn(private_in_public)] on by default
Dec 12 03:45:37.768 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 12 03:45:37.768 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 12 03:45:37.768 INFO [stderr] 
Dec 12 03:45:37.768 INFO [stderr] warning: private type `list::Node<T>` in public interface (error E0446)
Dec 12 03:45:37.768 INFO [stderr]   --> src/list/mod.rs:74:5
Dec 12 03:45:37.768 INFO [stderr]    |
Dec 12 03:45:37.768 INFO [stderr] 74 | /     pub fn last(&self) -> Option<&Node<T>>
Dec 12 03:45:37.768 INFO [stderr] 75 | |     {
Dec 12 03:45:37.768 INFO [stderr] 76 | |         match self.head {
Dec 12 03:45:37.768 INFO [stderr] 77 | |             Some(ref boxed_node) => Some(boxed_node.last()),
Dec 12 03:45:37.768 INFO [stderr] 78 | |             None => None
Dec 12 03:45:37.768 INFO [stderr] 79 | |         }
Dec 12 03:45:37.768 INFO [stderr] 80 | |     }
Dec 12 03:45:37.768 INFO [stderr]    | |_____^
Dec 12 03:45:37.768 INFO [stderr]    |
Dec 12 03:45:37.768 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 12 03:45:37.768 INFO [stderr]    = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
Dec 12 03:45:37.768 INFO [stderr] 
Dec 12 03:45:37.822 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.87s
Dec 12 03:45:37.830 INFO [stderr] su: No module specific data is present
Dec 12 03:45:38.348 INFO running `"docker" "inspect" "c267486aa8803e0234e1b31e9e0c208e324ab94e1471ca0fb7ce647aa4d3918b"`
Dec 12 03:45:38.613 INFO running `"docker" "rm" "-f" "c267486aa8803e0234e1b31e9e0c208e324ab94e1471ca0fb7ce647aa4d3918b"`
Dec 12 03:45:38.904 INFO [stdout] c267486aa8803e0234e1b31e9e0c208e324ab94e1471ca0fb7ce647aa4d3918b