[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/3435bf92153ecfe2eaaf764c2c57c3ccf28813d7 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fanyatran%2Fgraph" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/anyatran/graph on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-6-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 12a57965d4798a9087623ff809843bcef4a17800dab2b2afccd91f53abb04583
[INFO] running `Command { std: "docker" "start" "-a" "12a57965d4798a9087623ff809843bcef4a17800dab2b2afccd91f53abb04583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "12a57965d4798a9087623ff809843bcef4a17800dab2b2afccd91f53abb04583", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "12a57965d4798a9087623ff809843bcef4a17800dab2b2afccd91f53abb04583", kill_on_drop: false }`
[INFO] [stdout] 12a57965d4798a9087623ff809843bcef4a17800dab2b2afccd91f53abb04583
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 78934ff5d1aaf55e585fabf71944cb621a1277bf1f82d4f544b1ce85cdac358c
[INFO] running `Command { std: "docker" "start" "-a" "78934ff5d1aaf55e585fabf71944cb621a1277bf1f82d4f544b1ce85cdac358c", kill_on_drop: false }`
[INFO] [stderr] warning: no edition set: defaulting to the 2015 edition while the latest is 2021
[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] help: if you import `args`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 7 -     let file = match os::args().tail().first() {
[INFO] [stdout] 7 +     let file = match args().tail().first() {
[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]   |                          ^^^^ could not find `File` in `io`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::fs::File;
[INFO] [stdout]   |
[INFO] [stdout] help: if you import `File`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 8 -         Some(arg) => io::File::open(&Path::new(arg)),
[INFO] [stdout] 8 +         Some(arg) => File::open(&Path::new(arg)),
[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]   |                                      ^^^^ use of undeclared type `Path`
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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[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] help: if you import `args`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 7 -     let file = match os::args().tail().first() {
[INFO] [stdout] 7 +     let file = match args().tail().first() {
[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]   |                          ^^^^ could not find `File` in `io`
[INFO] [stdout]   |
[INFO] [stdout] help: consider importing this struct
[INFO] [stdout]   |
[INFO] [stdout] 1 + use std::fs::File;
[INFO] [stdout]   |
[INFO] [stdout] help: if you import `File`, refer to it directly
[INFO] [stdout]   |
[INFO] [stdout] 8 -         Some(arg) => io::File::open(&Path::new(arg)),
[INFO] [stdout] 8 +         Some(arg) => File::open(&Path::new(arg)),
[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]   |                                      ^^^^ use of undeclared type `Path`
[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] 
[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] 
[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] 
[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] 
[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] 
[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] 
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]    |            ^                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 -         if (input_split.clone().count() != 2) {
[INFO] [stdout] 18 +         if input_split.clone().count() != 2 {
[INFO] [stdout]    |
[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]    |            ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -         if (current.as_slice() == end.as_slice()) {
[INFO] [stdout] 77 +         if current.as_slice() == end.as_slice() {
[INFO] [stdout]    |
[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]    |                ^                              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -             if (visited.as_slice().contains(n)) {
[INFO] [stdout] 89 +             if visited.as_slice().contains(n) {
[INFO] [stdout]    |
[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]    |            ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -         if (!visited.as_slice().contains(&current)) {
[INFO] [stdout] 94 +         if !visited.as_slice().contains(&current) {
[INFO] [stdout]    |
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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]   --> /rustc/f609b7e0586f81fefb3523e3e17adf779ac416be/library/std/src/io/mod.rs:338:1
[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] [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]    |            ^                                ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 18 -         if (input_split.clone().count() != 2) {
[INFO] [stdout] 18 +         if input_split.clone().count() != 2 {
[INFO] [stdout]    |
[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]    |            ^                                    ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 77 -         if (current.as_slice() == end.as_slice()) {
[INFO] [stdout] 77 +         if current.as_slice() == end.as_slice() {
[INFO] [stdout]    |
[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]    |                ^                              ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 89 -             if (visited.as_slice().contains(n)) {
[INFO] [stdout] 89 +             if visited.as_slice().contains(n) {
[INFO] [stdout]    |
[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]    |            ^                                      ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 94 -         if (!visited.as_slice().contains(&current)) {
[INFO] [stdout] 94 +         if !visited.as_slice().contains(&current) {
[INFO] [stdout]    |
[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` (bin "graph_traversal") due to 19 previous errors; 5 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stderr] error: could not compile `graph_traversal` (bin "graph_traversal" test) due to 19 previous errors; 5 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "78934ff5d1aaf55e585fabf71944cb621a1277bf1f82d4f544b1ce85cdac358c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78934ff5d1aaf55e585fabf71944cb621a1277bf1f82d4f544b1ce85cdac358c", kill_on_drop: false }`
[INFO] [stdout] 78934ff5d1aaf55e585fabf71944cb621a1277bf1f82d4f544b1ce85cdac358c