[INFO] cloning repository https://github.com/joaoeudes7/Algoritmos-Rust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/joaoeudes7/Algoritmos-Rust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoaoeudes7%2FAlgoritmos-Rust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoaoeudes7%2FAlgoritmos-Rust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c7926854c71573e0bb84d3c9be85611c8ee6ae6d
[INFO] checking joaoeudes7/Algoritmos-Rust against master#5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f for pr-87248
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjoaoeudes7%2FAlgoritmos-Rust" "/workspace/builds/worker-4/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/joaoeudes7/Algoritmos-Rust on toolchain 5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/joaoeudes7/Algoritmos-Rust
[INFO] finished tweaking git repo https://github.com/joaoeudes7/Algoritmos-Rust
[INFO] tweaked toml for git repo https://github.com/joaoeudes7/Algoritmos-Rust written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/joaoeudes7/Algoritmos-Rust already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bf12f842632c1ea3d3effbf30e9cdfdb574fe62f9a289a9fb7afef974fbf9649
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bf12f842632c1ea3d3effbf30e9cdfdb574fe62f9a289a9fb7afef974fbf9649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bf12f842632c1ea3d3effbf30e9cdfdb574fe62f9a289a9fb7afef974fbf9649", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bf12f842632c1ea3d3effbf30e9cdfdb574fe62f9a289a9fb7afef974fbf9649", kill_on_drop: false }`
[INFO] [stdout] bf12f842632c1ea3d3effbf30e9cdfdb574fe62f9a289a9fb7afef974fbf9649
[INFO] running `Command { std: "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" "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" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+5a8a44196b3cf099f8c9b0156bd902eaec0b4e5f" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] f92435b80f8c9ae53f620b3cdd37ae0d0dfbc93f6fb82d344d2cab9fbc4f7773
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "f92435b80f8c9ae53f620b3cdd37ae0d0dfbc93f6fb82d344d2cab9fbc4f7773", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.2
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.48
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling standback v0.2.11
[INFO] [stderr]    Compiling time v0.2.22
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]    Compiling time-macros-impl v0.1.1
[INFO] [stderr]     Checking time-macros v0.1.1
[INFO] [stderr]     Checking rust_algorithms v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] error: expected type, found keyword `mut`
[INFO] [stdout]   --> src/bin/binary_tree.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn b_search(array: mut [i32], start: i32, end: i32, k: i32) -> [i32] {
[INFO] [stdout]    |                    ^^^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: expected type, found keyword `mut`
[INFO] [stdout]   --> src/bin/binary_tree.rs:33:20
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn b_search(array: mut [i32], start: i32, end: i32, k: i32) -> [i32] {
[INFO] [stdout]    |                    ^^^ expected type
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `has_item`
[INFO] [stdout]   --> src/bin/unknown.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn has_item(vec: Vec<i32>, item: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0072]: recursive type `Tree` has infinite size
[INFO] [stdout]  --> src/bin/binary_tree.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Tree<T> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^ recursive type has infinite size
[INFO] [stdout] 2 |     value: T,
[INFO] [stdout] 3 |     left: Option<Tree<T>>,
[INFO] [stdout]   |           --------------- recursive without indirection
[INFO] [stdout] 4 |     right: Option<Tree<T>>
[INFO] [stdout]   |            --------------- recursive without indirection
[INFO] [stdout]   |
[INFO] [stdout] help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Tree` representable
[INFO] [stdout]   |
[INFO] [stdout] 3 |     left: Box<Option<Tree<T>>>,
[INFO] [stdout] 4 |     right: Box<Option<Tree<T>>>
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0072]: recursive type `Tree` has infinite size
[INFO] [stdout]  --> src/bin/binary_tree.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | struct Tree<T> {
[INFO] [stdout]   | ^^^^^^^^^^^^^^ recursive type has infinite size
[INFO] [stdout] 2 |     value: T,
[INFO] [stdout] 3 |     left: Option<Tree<T>>,
[INFO] [stdout]   |           --------------- recursive without indirection
[INFO] [stdout] 4 |     right: Option<Tree<T>>
[INFO] [stdout]   |            --------------- recursive without indirection
[INFO] [stdout]   |
[INFO] [stdout] help: insert some indirection (e.g., a `Box`, `Rc`, or `&`) to make `Tree` representable
[INFO] [stdout]   |
[INFO] [stdout] 3 |     left: Box<Option<Tree<T>>>,
[INFO] [stdout] 4 |     right: Box<Option<Tree<T>>>
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `has_item`
[INFO] [stdout]   --> src/bin/unknown.rs:18:4
[INFO] [stdout]    |
[INFO] [stdout] 18 | fn has_item(vec: Vec<i32>, item: i32) -> bool {
[INFO] [stdout]    |    ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/binary_tree.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn insert(&mut self, new_value: T) -> Self {
[INFO] [stdout]    |                                           ---- expected `Tree<T>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 29 |         return node;
[INFO] [stdout]    |                ^^^^ expected struct `Tree`, found enum `Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Tree<_>`
[INFO] [stdout]                 found enum `Option<Tree<_>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/binary_tree.rs:33:64
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn b_search(array: mut [i32], start: i32, end: i32, k: i32) -> [i32] {
[INFO] [stdout]    |    --------                                                    ^^^^^ expected slice `[i32]`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/binary_tree.rs:29:16
[INFO] [stdout]    |
[INFO] [stdout] 20 |     fn insert(&mut self, new_value: T) -> Self {
[INFO] [stdout]    |                                           ---- expected `Tree<T>` because of return type
[INFO] [stdout] ...
[INFO] [stdout] 29 |         return node;
[INFO] [stdout]    |                ^^^^ expected struct `Tree`, found enum `Option`
[INFO] [stdout]    |
[INFO] [stdout]    = note: expected struct `Tree<_>`
[INFO] [stdout]                 found enum `Option<Tree<_>>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0308]: mismatched types
[INFO] [stdout]   --> src/bin/binary_tree.rs:33:64
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn b_search(array: mut [i32], start: i32, end: i32, k: i32) -> [i32] {
[INFO] [stdout]    |    --------                                                    ^^^^^ expected slice `[i32]`, found `()`
[INFO] [stdout]    |    |
[INFO] [stdout]    |    implicitly returns `()` as its body has no tail or `return` expression
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
[INFO] [stdout]   --> src/bin/binary_tree.rs:33:64
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn b_search(array: mut [i32], start: i32, end: i32, k: i32) -> [i32] {
[INFO] [stdout]    |                                                                ^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `[i32]`
[INFO] [stdout]    = note: the return type of a function must have a statically known size
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0277]: the size for values of type `[i32]` cannot be known at compilation time
[INFO] [stdout]   --> src/bin/binary_tree.rs:33:64
[INFO] [stdout]    |
[INFO] [stdout] 33 | fn b_search(array: mut [i32], start: i32, end: i32, k: i32) -> [i32] {
[INFO] [stdout]    |                                                                ^^^^^ doesn't have a size known at compile-time
[INFO] [stdout]    |
[INFO] [stdout]    = help: the trait `Sized` is not implemented for `[i32]`
[INFO] [stdout]    = note: the return type of a function must have a statically known size
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0072, E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0072`.
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 5 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0072, E0277, E0308.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0072`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `rust_algorithms` due to 6 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "f92435b80f8c9ae53f620b3cdd37ae0d0dfbc93f6fb82d344d2cab9fbc4f7773", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f92435b80f8c9ae53f620b3cdd37ae0d0dfbc93f6fb82d344d2cab9fbc4f7773", kill_on_drop: false }`
[INFO] [stdout] f92435b80f8c9ae53f620b3cdd37ae0d0dfbc93f6fb82d344d2cab9fbc4f7773