[INFO] cloning repository https://github.com/fallingyang/leetcode_rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/fallingyang/leetcode_rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Fleetcode_rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Fleetcode_rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3a2e15ddf9cca3354b8fd81cf43f7eb45b837575
[INFO] checking fallingyang/leetcode_rust against try#a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399 for pr-145770
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ffallingyang%2Fleetcode_rust" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/fallingyang/leetcode_rust
[INFO] finished tweaking git repo https://github.com/fallingyang/leetcode_rust
[INFO] tweaked toml for git repo https://github.com/fallingyang/leetcode_rust written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/fallingyang/leetcode_rust on toolchain a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/fallingyang/leetcode_rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3eb6814963eedcbe205ef1124ab388898137ad8481933dddaef8525f173edf6d
[INFO] running `Command { std: "docker" "start" "-a" "3eb6814963eedcbe205ef1124ab388898137ad8481933dddaef8525f173edf6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3eb6814963eedcbe205ef1124ab388898137ad8481933dddaef8525f173edf6d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3eb6814963eedcbe205ef1124ab388898137ad8481933dddaef8525f173edf6d", kill_on_drop: false }`
[INFO] [stdout] 3eb6814963eedcbe205ef1124ab388898137ad8481933dddaef8525f173edf6d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:7ad1b28ee6f5f7f699f6cf7015098d6ccdd96d6f2d78dd06228f5b4c9faf309c" "/opt/rustwide/cargo-home/bin/cargo" "+a2a6e871b05c7b8ecc9a3c8a20db1f39e995e399" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f076d6dfe0590a3f9ededcacd071ca55ac260679457d4ce5e75e30731eb4d91c
[INFO] running `Command { std: "docker" "start" "-a" "f076d6dfe0590a3f9ededcacd071ca55ac260679457d4ce5e75e30731eb4d91c", kill_on_drop: false }`
[INFO] [stderr]     Checking leetcode_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/list/main.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn node(self, index: u32) -> Self {
[INFO] [stdout]    |        ----                      ^^^^ expected `Node<T>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Node<T>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] help: consider returning the local binding `self`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn node(self, index: u32) -> Self {
[INFO] [stdout] 49 +         self
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0505]: cannot move out of `*self` because it is borrowed
[INFO] [stdout]   --> src/list/main.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn insert(&mut self, index: u32, elem: T) -> bool {
[INFO] [stdout]    |               --------- binding `self` declared here
[INFO] [stdout] 30 |         self.link_before(elem, self.node(index));
[INFO] [stdout]    |         ---- -----------       ^^^^ move out of `*self` occurs here
[INFO] [stdout]    |         |    |
[INFO] [stdout]    |         |    borrow later used by call
[INFO] [stdout]    |         borrow of `*self` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]   --> src/list/main.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |         self.link_before(elem, self.node(index));
[INFO] [stdout]    |                                ^^^^ ----------- `*self` moved due to this method call
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                move occurs because `*self` has type `Node<T>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] note: `Node::<T>::node` takes ownership of the receiver `self`, which moves `*self`
[INFO] [stdout]   --> src/list/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn node(self, index: u32) -> Self {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/list/main.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn remove(&mut self, elem: T) -> bool {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/list/main.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn link_last(&mut self, elem: T) {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/list/main.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn link_before(&mut self, elem: T, node: Self) {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/list/main.rs:42:40
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn link_before(&mut self, elem: T, node: Self) {
[INFO] [stdout]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0505, E0507.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode_rust` (bin "list") due to 3 previous errors; 4 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/list/main.rs:47:34
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn node(self, index: u32) -> Self {
[INFO] [stdout]    |        ----                      ^^^^ expected `Node<T>`, found `()`
[INFO] [stdout]    |        |
[INFO] [stdout]    |        implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Node<T>`
[INFO] [stdout]            found unit type `()`
[INFO] [stdout] help: consider returning the local binding `self`
[INFO] [stdout]    |
[INFO] [stdout] 48 |     fn node(self, index: u32) -> Self {
[INFO] [stdout] 49 +         self
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0505]: cannot move out of `*self` because it is borrowed
[INFO] [stdout]   --> src/list/main.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 29 |     fn insert(&mut self, index: u32, elem: T) -> bool {
[INFO] [stdout]    |               --------- binding `self` declared here
[INFO] [stdout] 30 |         self.link_before(elem, self.node(index));
[INFO] [stdout]    |         ---- -----------       ^^^^ move out of `*self` occurs here
[INFO] [stdout]    |         |    |
[INFO] [stdout]    |         |    borrow later used by call
[INFO] [stdout]    |         borrow of `*self` occurs here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0507]: cannot move out of `*self` which is behind a mutable reference
[INFO] [stdout]   --> src/list/main.rs:30:32
[INFO] [stdout]    |
[INFO] [stdout] 30 |         self.link_before(elem, self.node(index));
[INFO] [stdout]    |                                ^^^^ ----------- `*self` moved due to this method call
[INFO] [stdout]    |                                |
[INFO] [stdout]    |                                move occurs because `*self` has type `Node<T>`, which does not implement the `Copy` trait
[INFO] [stdout]    |
[INFO] [stdout] note: `Node::<T>::node` takes ownership of the receiver `self`, which moves `*self`
[INFO] [stdout]   --> src/list/main.rs:47:13
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn node(self, index: u32) -> Self {
[INFO] [stdout]    |             ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/list/main.rs:34:26
[INFO] [stdout]    |
[INFO] [stdout] 34 |     fn remove(&mut self, elem: T) -> bool {
[INFO] [stdout]    |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/list/main.rs:38:29
[INFO] [stdout]    |
[INFO] [stdout] 38 |     fn link_last(&mut self, elem: T) {
[INFO] [stdout]    |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `elem`
[INFO] [stdout]   --> src/list/main.rs:42:31
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn link_before(&mut self, elem: T, node: Self) {
[INFO] [stdout]    |                               ^^^^ help: if this is intentional, prefix it with an underscore: `_elem`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]   --> src/list/main.rs:42:40
[INFO] [stdout]    |
[INFO] [stdout] 42 |     fn link_before(&mut self, elem: T, node: Self) {
[INFO] [stdout]    |                                        ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0308, E0505, E0507.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0308`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `leetcode_rust` (bin "list" test) due to 3 previous errors; 4 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "f076d6dfe0590a3f9ededcacd071ca55ac260679457d4ce5e75e30731eb4d91c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f076d6dfe0590a3f9ededcacd071ca55ac260679457d4ce5e75e30731eb4d91c", kill_on_drop: false }`
[INFO] [stdout] f076d6dfe0590a3f9ededcacd071ca55ac260679457d4ce5e75e30731eb4d91c
