[INFO] cloning repository https://github.com/anyatran/graph
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/anyatran/graph" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 3435bf92153ecfe2eaaf764c2c57c3ccf28813d7
[INFO] checking anyatran/graph against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anyatran/graph on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/anyatran/graph
[INFO] finished tweaking git repo https://github.com/anyatran/graph
[INFO] tweaked toml for git repo https://github.com/anyatran/graph written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/anyatran/graph already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f069583ed47ce8f0f24de4bfe841b8117045bf2b98230d24d4e7e2bc6aea7cc
[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" "1f069583ed47ce8f0f24de4bfe841b8117045bf2b98230d24d4e7e2bc6aea7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f069583ed47ce8f0f24de4bfe841b8117045bf2b98230d24d4e7e2bc6aea7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f069583ed47ce8f0f24de4bfe841b8117045bf2b98230d24d4e7e2bc6aea7cc", kill_on_drop: false }`
[INFO] [stdout] 1f069583ed47ce8f0f24de4bfe841b8117045bf2b98230d24d4e7e2bc6aea7cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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" "rustops/crates-build-env@sha256:b8eeb62f26c39b23691079a6cb6de528d8e88b4d71a8f6b1d30f8ba7d9c16de9" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8d42c4e5561f5c1bc152956ae3bcf26131ad4738ff89c014df61b2d2df2cd877
[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" "8d42c4e5561f5c1bc152956ae3bcf26131ad4738ff89c014df61b2d2df2cd877", kill_on_drop: false }`
[INFO] [stderr]     Checking graph_traversal v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0433]: failed to resolve: could not find `BufferedReader` in `io`
[INFO] [stdout]   --> src/main.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut file_buff = io::BufferedReader::new(file);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ could not find `BufferedReader` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `BufferedReader` in `io`
[INFO] [stdout]   --> src/main.rs:12:29
[INFO] [stdout]    |
[INFO] [stdout] 12 |     let mut file_buff = io::BufferedReader::new(file);
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^ could not find `BufferedReader` in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let file = match os::args().tail().first() {
[INFO] [stdout]   |                          ^^^^ not found in `os`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::args;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `File` in `io`
[INFO] [stdout]  --> src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Some(arg) => io::File::open(&Path::new(arg)),
[INFO] [stdout]   |                          ^^^^ not found in `io`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]  --> src/main.rs:8:38
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Some(arg) => io::File::open(&Path::new(arg)),
[INFO] [stdout]   |                                      ^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `args` in module `os`
[INFO] [stdout]  --> src/main.rs:7:26
[INFO] [stdout]   |
[INFO] [stdout] 7 |     let file = match os::args().tail().first() {
[INFO] [stdout]   |                          ^^^^ not found in `os`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::env::args;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     io::stdio::print("-> ");
[INFO] [stdout]    |                ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: could not find `File` in `io`
[INFO] [stdout]  --> src/main.rs:8:26
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Some(arg) => io::File::open(&Path::new(arg)),
[INFO] [stdout]   |                          ^^^^ not found in `io`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::fs::File;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |             io::stdio::print("-> ");
[INFO] [stdout]    |                        ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0433]: failed to resolve: use of undeclared type `Path`
[INFO] [stdout]  --> src/main.rs:8:38
[INFO] [stdout]   |
[INFO] [stdout] 8 |         Some(arg) => io::File::open(&Path::new(arg)),
[INFO] [stdout]   |                                      ^^^^ not found in this scope
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::path::Path;
[INFO] [stdout]   |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:14:16
[INFO] [stdout]    |
[INFO] [stdout] 14 |     io::stdio::print("-> ");
[INFO] [stdout]    |                ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 io::stdio::print("-> ");
[INFO] [stdout]    |                            ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:20:24
[INFO] [stdout]    |
[INFO] [stdout] 20 |             io::stdio::print("-> ");
[INFO] [stdout]    |                        ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |             io::stdio::print(format!("{} ", n).as_slice());
[INFO] [stdout]    |                        ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |         io::stdio::print("\n");
[INFO] [stdout]    |                    ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |         io::stdio::print("-> ");
[INFO] [stdout]    |                    ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Reader` in this scope
[INFO] [stdout]   --> src/main.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn load_graph<R: Reader> (mut content: io::BufferedReader<R>) -> HashMap<String, Vec<String>> {
[INFO] [stdout]    |                  ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BufferedReader` in module `io`
[INFO] [stdout]   --> src/main.rs:50:44
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn load_graph<R: Reader> (mut content: io::BufferedReader<R>) -> HashMap<String, Vec<String>> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:14:9
[INFO] [stdout]     |
[INFO] [stdout] 14  |     io::stdio::print("-> ");
[INFO] [stdout]     |         ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:20:17
[INFO] [stdout]     |
[INFO] [stdout] 20  |             io::stdio::print("-> ");
[INFO] [stdout]     |                 ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:29:21
[INFO] [stdout]     |
[INFO] [stdout] 29  |                 io::stdio::print("-> ");
[INFO] [stdout]     |                     ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:34:17
[INFO] [stdout]     |
[INFO] [stdout] 34  |             io::stdio::print(format!("{} ", n).as_slice());
[INFO] [stdout]     |                 ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:36:13
[INFO] [stdout]     |
[INFO] [stdout] 36  |         io::stdio::print("\n");
[INFO] [stdout]     |             ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:37:13
[INFO] [stdout]     |
[INFO] [stdout] 37  |         io::stdio::print("-> ");
[INFO] [stdout]     |             ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::binary_heap::BinaryHeap`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::binary_heap::BinaryHeap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |         if (input_split.clone().count() != 2) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:29:28
[INFO] [stdout]    |
[INFO] [stdout] 29 |                 io::stdio::print("-> ");
[INFO] [stdout]    |                            ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:34:24
[INFO] [stdout]    |
[INFO] [stdout] 34 |             io::stdio::print(format!("{} ", n).as_slice());
[INFO] [stdout]    |                        ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:36:20
[INFO] [stdout]    |
[INFO] [stdout] 36 |         io::stdio::print("\n");
[INFO] [stdout]    |                    ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0425]: cannot find function `print` in `io::stdio`
[INFO] [stdout]   --> src/main.rs:37:20
[INFO] [stdout]    |
[INFO] [stdout] 37 |         io::stdio::print("-> ");
[INFO] [stdout]    |                    ^^^^^ not found in `io::stdio`
[INFO] [stdout]    |
[INFO] [stdout] help: consider importing this function
[INFO] [stdout]    |
[INFO] [stdout] 1  | use io::sys::ext::net::raw_fd::sys_common::backtrace::print;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0405]: cannot find trait `Reader` in this scope
[INFO] [stdout]   --> src/main.rs:50:18
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn load_graph<R: Reader> (mut content: io::BufferedReader<R>) -> HashMap<String, Vec<String>> {
[INFO] [stdout]    |                  ^^^^^^ not found in this scope
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |         if (current.as_slice() == end.as_slice()) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0412]: cannot find type `BufferedReader` in module `io`
[INFO] [stdout]   --> src/main.rs:50:44
[INFO] [stdout]    |
[INFO] [stdout] 50 | fn load_graph<R: Reader> (mut content: io::BufferedReader<R>) -> HashMap<String, Vec<String>> {
[INFO] [stdout]    |                                            ^^^^^^^^^^^^^^ not found in `io`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |             if (visited.as_slice().contains(n)) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:14:9
[INFO] [stdout]     |
[INFO] [stdout] 14  |     io::stdio::print("-> ");
[INFO] [stdout]     |         ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |         if (!visited.as_slice().contains(&current)) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:20:17
[INFO] [stdout]     |
[INFO] [stdout] 20  |             io::stdio::print("-> ");
[INFO] [stdout]     |                 ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:29:21
[INFO] [stdout]     |
[INFO] [stdout] 29  |                 io::stdio::print("-> ");
[INFO] [stdout]     |                     ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:34:17
[INFO] [stdout]     |
[INFO] [stdout] 34  |             io::stdio::print(format!("{} ", n).as_slice());
[INFO] [stdout]     |                 ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:36:13
[INFO] [stdout]     |
[INFO] [stdout] 36  |         io::stdio::print("\n");
[INFO] [stdout]     |             ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0603]: module `stdio` is private
[INFO] [stdout]    --> src/main.rs:37:13
[INFO] [stdout]     |
[INFO] [stdout] 37  |         io::stdio::print("-> ");
[INFO] [stdout]     |             ^^^^^ private module
[INFO] [stdout]     |
[INFO] [stdout] note: the module `stdio` is defined here
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::collections::binary_heap::BinaryHeap`
[INFO] [stdout]  --> src/main.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 | use std::collections::binary_heap::BinaryHeap;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 18 |         if (input_split.clone().count() != 2) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:77:12
[INFO] [stdout]    |
[INFO] [stdout] 77 |         if (current.as_slice() == end.as_slice()) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:89:16
[INFO] [stdout]    |
[INFO] [stdout] 89 |             if (visited.as_slice().contains(n)) {
[INFO] [stdout]    |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around `if` condition
[INFO] [stdout]   --> src/main.rs:94:12
[INFO] [stdout]    |
[INFO] [stdout] 94 |         if (!visited.as_slice().contains(&current)) {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 18 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0433, E0603.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `graph_traversal`
[INFO] [stdout] error: aborting due to 18 previous errors; 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] 
[INFO] [stdout] Some errors have detailed explanations: E0405, E0412, E0425, E0433, E0603.
[INFO] [stdout] 
[INFO] [stderr] To learn more, run the command again with --verbose.
[INFO] [stdout] For more information about an error, try `rustc --explain E0405`.
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "8d42c4e5561f5c1bc152956ae3bcf26131ad4738ff89c014df61b2d2df2cd877", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8d42c4e5561f5c1bc152956ae3bcf26131ad4738ff89c014df61b2d2df2cd877", kill_on_drop: false }`
[INFO] [stdout] 8d42c4e5561f5c1bc152956ae3bcf26131ad4738ff89c014df61b2d2df2cd877