[INFO] updating cached repository tslilyai/rustyrb
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/tslilyai/rustyrb
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/tslilyai/rustyrb" "work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tslilyai/rustyrb"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tslilyai/rustyrb'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/tslilyai/rustyrb" "work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tslilyai/rustyrb"`
[INFO] [stderr] Cloning into 'work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tslilyai/rustyrb'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 5310109fba877afa137980dad4715e076b1e1124
[INFO] sha for GitHub repo tslilyai/rustyrb: 5310109fba877afa137980dad4715e076b1e1124
[INFO] validating manifest of tslilyai/rustyrb on toolchain master#39401465da4ce27aeeb2c2a26133ac35c63aa515
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of tslilyai/rustyrb on toolchain try#f45cc3094ee337acd688771b9234318046b0572d
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing tslilyai/rustyrb
[INFO] finished frobbing tslilyai/rustyrb
[INFO] frobbed toml for tslilyai/rustyrb written to work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tslilyai/rustyrb/Cargo.toml
[INFO] started frobbing tslilyai/rustyrb
[INFO] finished frobbing tslilyai/rustyrb
[INFO] frobbed toml for tslilyai/rustyrb written to work/ex/pr-60914/sources/try#f45cc3094ee337acd688771b9234318046b0572d/gh/tslilyai/rustyrb/Cargo.toml
[INFO] crate tslilyai/rustyrb already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/crater-raid/crater/work/local/cargo-home/bin/cargo" "+f45cc3094ee337acd688771b9234318046b0572d-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking tslilyai/rustyrb against master#39401465da4ce27aeeb2c2a26133ac35c63aa515 for pr-60914
[INFO] running `"docker" "create" "-v" "/mnt/crater-raid/crater/work/local/target-dirs/pr-60914/worker-0/master#39401465da4ce27aeeb2c2a26133ac35c63aa515:/opt/crater/target:rw,Z" "-v" "/mnt/crater-raid/crater/work/ex/pr-60914/sources/master#39401465da4ce27aeeb2c2a26133ac35c63aa515/gh/tslilyai/rustyrb:/opt/crater/workdir:ro,Z" "-v" "/mnt/crater-raid/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/crater-raid/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" "+39401465da4ce27aeeb2c2a26133ac35c63aa515-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 1b4bcc7ffa170e936bc68a1ba5154e8db9c02166930e852b4c70588b75b7f399
[INFO] running `"docker" "start" "-a" "1b4bcc7ffa170e936bc68a1ba5154e8db9c02166930e852b4c70588b75b7f399"`
[INFO] [stderr]     Checking rustyrbtree v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: private type `rbtree::Node<K, V>` in public interface (error E0446)
[INFO] [stderr]    --> src/rbtree.rs:164:5
[INFO] [stderr]     |
[INFO] [stderr] 164 | /     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stderr] 165 | |         if let Some(mut h) = hptr.clone() {
[INFO] [stderr] 166 | |             if key < h.key  {
[INFO] [stderr] 167 | |                 if !RBTree::is_node_red(&h.left) && !RBTree::is_child_node_red(&h.left, 0) {
[INFO] [stderr] ...   |
[INFO] [stderr] 197 | |         return None;
[INFO] [stderr] 198 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(private_in_public)] on by default
[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!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `rbtree::Node<K, V>` in public interface (error E0446)
[INFO] [stderr]    --> src/rbtree.rs:164:5
[INFO] [stderr]     |
[INFO] [stderr] 164 | /     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stderr] 165 | |         if let Some(mut h) = hptr.clone() {
[INFO] [stderr] 166 | |             if key < h.key  {
[INFO] [stderr] 167 | |                 if !RBTree::is_node_red(&h.left) && !RBTree::is_child_node_red(&h.left, 0) {
[INFO] [stderr] ...   |
[INFO] [stderr] 197 | |         return None;
[INFO] [stderr] 198 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `height`
[INFO] [stderr]    --> src/rbtree.rs:324:5
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn height(&self) -> isize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `height_helper`
[INFO] [stderr]    --> src/rbtree.rs:327:5
[INFO] [stderr]     |
[INFO] [stderr] 327 |     fn height_helper(&self, xptr: &NodeptrT<K,V>) -> isize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: private type `rbtree::Node<K, V>` in public interface (error E0446)
[INFO] [stderr]    --> src/rbtree.rs:164:5
[INFO] [stderr]     |
[INFO] [stderr] 164 | /     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stderr] 165 | |         if let Some(mut h) = hptr.clone() {
[INFO] [stderr] 166 | |             if key < h.key  {
[INFO] [stderr] 167 | |                 if !RBTree::is_node_red(&h.left) && !RBTree::is_child_node_red(&h.left, 0) {
[INFO] [stderr] ...   |
[INFO] [stderr] 197 | |         return None;
[INFO] [stderr] 198 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(private_in_public)] on by default
[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!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: private type `rbtree::Node<K, V>` in public interface (error E0446)
[INFO] [stderr]    --> src/rbtree.rs:164:5
[INFO] [stderr]     |
[INFO] [stderr] 164 | /     pub fn delete_helper(&self, hptr: &NodeptrT<K,V>, key: K) -> NodeptrT<K,V> { 
[INFO] [stderr] 165 | |         if let Some(mut h) = hptr.clone() {
[INFO] [stderr] 166 | |             if key < h.key  {
[INFO] [stderr] 167 | |                 if !RBTree::is_node_red(&h.left) && !RBTree::is_child_node_red(&h.left, 0) {
[INFO] [stderr] ...   |
[INFO] [stderr] 197 | |         return None;
[INFO] [stderr] 198 | |     }
[INFO] [stderr]     | |_____^
[INFO] [stderr]     |
[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!
[INFO] [stderr]     = note: for more information, see issue #34537 <https://github.com/rust-lang/rust/issues/34537>
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `height`
[INFO] [stderr]    --> src/rbtree.rs:324:5
[INFO] [stderr]     |
[INFO] [stderr] 324 |     pub fn height(&self) -> isize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `height_helper`
[INFO] [stderr]    --> src/rbtree.rs:327:5
[INFO] [stderr]     |
[INFO] [stderr] 327 |     fn height_helper(&self, xptr: &NodeptrT<K,V>) -> isize {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.52s
[INFO] running `"docker" "inspect" "1b4bcc7ffa170e936bc68a1ba5154e8db9c02166930e852b4c70588b75b7f399"`
[INFO] running `"docker" "rm" "-f" "1b4bcc7ffa170e936bc68a1ba5154e8db9c02166930e852b4c70588b75b7f399"`
[INFO] [stdout] 1b4bcc7ffa170e936bc68a1ba5154e8db9c02166930e852b4c70588b75b7f399