[INFO] updating cached repository https://github.com/louisstewart/AVLTreeRs
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] cc90045787167a00d425ed9b96bccfb4d18de63f
[INFO] checking louisstewart/AVLTreeRs against master#209b2be09fcaff937480d1fbbe8b31646e361c7a for pr-70917
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Flouisstewart%2FAVLTreeRs" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/louisstewart/AVLTreeRs on toolchain 209b2be09fcaff937480d1fbbe8b31646e361c7a
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/louisstewart/AVLTreeRs
[INFO] finished tweaking git repo https://github.com/louisstewart/AVLTreeRs
[INFO] tweaked toml for git repo https://github.com/louisstewart/AVLTreeRs written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/louisstewart/AVLTreeRs already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+209b2be09fcaff937480d1fbbe8b31646e361c7a" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] dfd53360eb9100b7a98987077ec6a4ee6817d7a0349e9140ff89506e79ac7c3d
[INFO] running `"docker" "start" "-a" "dfd53360eb9100b7a98987077ec6a4ee6817d7a0349e9140ff89506e79ac7c3d"`
[INFO] [stderr]     Checking tree v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `true`
[INFO] [stderr]   --> src/tree.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 self.root = Some(delete(node, val))
[INFO] [stderr]    |                                                    - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stderr] 60 |                 true
[INFO] [stderr]    |                 ^^^^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found keyword `false`
[INFO] [stderr]   --> src/tree.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 self.root = None
[INFO] [stderr]    |                                 - expected one of 8 possible tokens
[INFO] [stderr] 64 |                 false
[INFO] [stderr]    |                 ^^^^^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `.`, `;`, `?`, `}`, or an operator, found keyword `true`
[INFO] [stderr]   --> src/tree.rs:60:17
[INFO] [stderr]    |
[INFO] [stderr] 59 |                 self.root = Some(delete(node, val))
[INFO] [stderr]    |                                                    - expected one of `.`, `;`, `?`, `}`, or an operator
[INFO] [stderr] 60 |                 true
[INFO] [stderr]    |                 ^^^^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] error: expected one of `!`, `.`, `::`, `;`, `?`, `{`, `}`, or an operator, found keyword `false`
[INFO] [stderr]   --> src/tree.rs:64:17
[INFO] [stderr]    |
[INFO] [stderr] 63 |                 self.root = None
[INFO] [stderr]    |                                 - expected one of 8 possible tokens
[INFO] [stderr] 64 |                 false
[INFO] [stderr]    |                 ^^^^^ unexpected token
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `t` in this scope
[INFO] [stderr]    --> src/tree.rs:221:79
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn remove_in<T: PartialEq + Ord + Display>(node : Option<Box<Node<T>>>, val : t)
[INFO] [stderr]     |              - similarly named type parameter `T` defined here                ^ help: a type parameter with a similar name exists: `T`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tree.rs:162:11
[INFO] [stderr]     |
[INFO] [stderr] 162 |         -1...1 => return node,
[INFO] [stderr]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0412]: cannot find type `t` in this scope
[INFO] [stderr]    --> src/tree.rs:221:79
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn remove_in<T: PartialEq + Ord + Display>(node : Option<Box<Node<T>>>, val : t)
[INFO] [stderr]     |              - similarly named type parameter `T` defined here                ^ help: a type parameter with a similar name exists: `T`
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/tree.rs:162:11
[INFO] [stderr]     |
[INFO] [stderr] 162 |         -1...1 => return node,
[INFO] [stderr]     |           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] error[E0599]: no variant or associated item named `More` found for enum `std::cmp::Ordering` in the current scope
[INFO] [stderr]    --> src/tree.rs:153:19
[INFO] [stderr]     |
[INFO] [stderr] 153 |         Ordering::More => node.right = remove_in(node, val)
[INFO] [stderr]     |                   ^^^^ variant or associated item not found in `std::cmp::Ordering`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:150:30
[INFO] [stderr]     |
[INFO] [stderr] 150 |             return remove_in(node, val)
[INFO] [stderr]     |                              ^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              expected enum `std::option::Option`, found struct `std::boxed::Box`
[INFO] [stderr]     |                              help: try using a variant of the expected enum: `Some(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected enum `std::option::Option<std::boxed::Box<tree::Node<_>>>`
[INFO] [stderr]              found struct `std::boxed::Box<tree::Node<T>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:150:20
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn delete<T: PartialEq + Ord + Display>(mut node: Box<Node<T>>, val : T) -> Box<Node<T>> {
[INFO] [stderr]     |                                                                             ------------ expected `std::boxed::Box<tree::Node<T>>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 150 |             return remove_in(node, val)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^ expected struct `std::boxed::Box`, found enum `std::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `std::boxed::Box<tree::Node<T>>`
[INFO] [stderr]                  found enum `std::option::Option<std::boxed::Box<tree::Node<_>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:152:49
[INFO] [stderr]     |
[INFO] [stderr] 152 |         Ordering::Less => node.left = remove_in(node, val),
[INFO] [stderr]     |                                                 ^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 expected enum `std::option::Option`, found struct `std::boxed::Box`
[INFO] [stderr]     |                                                 help: try using a variant of the expected enum: `Some(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected enum `std::option::Option<std::boxed::Box<_>>`
[INFO] [stderr]              found struct `std::boxed::Box<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |         Ordering::More => node.right = remove_in(node, val)
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  expected enum `std::option::Option`, found struct `std::boxed::Box`
[INFO] [stderr]     |                                                  help: try using a variant of the expected enum: `Some(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected enum `std::option::Option<std::boxed::Box<_>>`
[INFO] [stderr]              found struct `std::boxed::Box<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:222:12
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn remove_in<T: PartialEq + Ord + Display>(node : Option<Box<Node<T>>>, val : t)
[INFO] [stderr]     |    --------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 222 |         -> Option<Box<Node<T>>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found `()`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<std::boxed::Box<tree::Node<T>>>`
[INFO] [stderr]             found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0412, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error[E0599]: no variant or associated item named `More` found for enum `std::cmp::Ordering` in the current scope
[INFO] [stderr]    --> src/tree.rs:153:19
[INFO] [stderr]     |
[INFO] [stderr] 153 |         Ordering::More => node.right = remove_in(node, val)
[INFO] [stderr]     |                   ^^^^ variant or associated item not found in `std::cmp::Ordering`
[INFO] [stderr] 
[INFO] [stderr] error: could not compile `tree`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:150:30
[INFO] [stderr]     |
[INFO] [stderr] 150 |             return remove_in(node, val)
[INFO] [stderr]     |                              ^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              expected enum `std::option::Option`, found struct `std::boxed::Box`
[INFO] [stderr]     |                              help: try using a variant of the expected enum: `Some(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected enum `std::option::Option<std::boxed::Box<tree::Node<_>>>`
[INFO] [stderr]              found struct `std::boxed::Box<tree::Node<T>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:150:20
[INFO] [stderr]     |
[INFO] [stderr] 147 | fn delete<T: PartialEq + Ord + Display>(mut node: Box<Node<T>>, val : T) -> Box<Node<T>> {
[INFO] [stderr]     |                                                                             ------------ expected `std::boxed::Box<tree::Node<T>>` because of return type
[INFO] [stderr] ...
[INFO] [stderr] 150 |             return remove_in(node, val)
[INFO] [stderr]     |                    ^^^^^^^^^^^^^^^^^^^^ expected struct `std::boxed::Box`, found enum `std::option::Option`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected struct `std::boxed::Box<tree::Node<T>>`
[INFO] [stderr]                  found enum `std::option::Option<std::boxed::Box<tree::Node<_>>>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:152:49
[INFO] [stderr]     |
[INFO] [stderr] 152 |         Ordering::Less => node.left = remove_in(node, val),
[INFO] [stderr]     |                                                 ^^^^
[INFO] [stderr]     |                                                 |
[INFO] [stderr]     |                                                 expected enum `std::option::Option`, found struct `std::boxed::Box`
[INFO] [stderr]     |                                                 help: try using a variant of the expected enum: `Some(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected enum `std::option::Option<std::boxed::Box<_>>`
[INFO] [stderr]              found struct `std::boxed::Box<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:153:50
[INFO] [stderr]     |
[INFO] [stderr] 153 |         Ordering::More => node.right = remove_in(node, val)
[INFO] [stderr]     |                                                  ^^^^
[INFO] [stderr]     |                                                  |
[INFO] [stderr]     |                                                  expected enum `std::option::Option`, found struct `std::boxed::Box`
[INFO] [stderr]     |                                                  help: try using a variant of the expected enum: `Some(node)`
[INFO] [stderr]     |
[INFO] [stderr]     = note: expected enum `std::option::Option<std::boxed::Box<_>>`
[INFO] [stderr]              found struct `std::boxed::Box<_>`
[INFO] [stderr] 
[INFO] [stderr] error[E0308]: mismatched types
[INFO] [stderr]    --> src/tree.rs:222:12
[INFO] [stderr]     |
[INFO] [stderr] 221 | fn remove_in<T: PartialEq + Ord + Display>(node : Option<Box<Node<T>>>, val : t)
[INFO] [stderr]     |    --------- implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stderr] 222 |         -> Option<Box<Node<T>>> {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^^^^^^ expected enum `std::option::Option`, found `()`
[INFO] [stderr]     |
[INFO] [stderr]     = note:   expected enum `std::option::Option<std::boxed::Box<tree::Node<T>>>`
[INFO] [stderr]             found unit type `()`
[INFO] [stderr] 
[INFO] [stderr] error: aborting due to 9 previous errors
[INFO] [stderr] 
[INFO] [stderr] Some errors have detailed explanations: E0308, E0412, E0599.
[INFO] [stderr] For more information about an error, try `rustc --explain E0308`.
[INFO] [stderr] error: could not compile `tree`.
[INFO] [stderr] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] running `"docker" "inspect" "dfd53360eb9100b7a98987077ec6a4ee6817d7a0349e9140ff89506e79ac7c3d"`
[INFO] running `"docker" "rm" "-f" "dfd53360eb9100b7a98987077ec6a4ee6817d7a0349e9140ff89506e79ac7c3d"`
[INFO] [stdout] dfd53360eb9100b7a98987077ec6a4ee6817d7a0349e9140ff89506e79ac7c3d
