[INFO] cloning repository https://github.com/dopeter/rust_sample
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dopeter/rust_sample" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdopeter%2Frust_sample", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdopeter%2Frust_sample'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 9f7d4afe11818870d0599e96a0e6cc5a21af6283
[INFO] testing dopeter/rust_sample against try#d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2 for pr-86479
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdopeter%2Frust_sample" "/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/dopeter/rust_sample on toolchain d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/dopeter/rust_sample
[INFO] finished tweaking git repo https://github.com/dopeter/rust_sample
[INFO] tweaked toml for git repo https://github.com/dopeter/rust_sample written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/dopeter/rust_sample already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 416f27f9073d43da6a819b1ad40f9d03a948e0f6eb9303ec83e1804a369cd8cf
[INFO] running `Command { std: "docker" "start" "-a" "416f27f9073d43da6a819b1ad40f9d03a948e0f6eb9303ec83e1804a369cd8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "416f27f9073d43da6a819b1ad40f9d03a948e0f6eb9303ec83e1804a369cd8cf", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "416f27f9073d43da6a819b1ad40f9d03a948e0f6eb9303ec83e1804a369cd8cf", kill_on_drop: false }`
[INFO] [stdout] 416f27f9073d43da6a819b1ad40f9d03a948e0f6eb9303ec83e1804a369cd8cf
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 59b2ca8e161cb8b1a95c1d4b827103876e83d193d83d0188e78d1583c708ee00
[INFO] running `Command { std: "docker" "start" "-a" "59b2ca8e161cb8b1a95c1d4b827103876e83d193d83d0188e78d1583c708ee00", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.60
[INFO] [stderr]    Compiling rand v0.4.6
[INFO] [stderr]    Compiling rand v0.3.23
[INFO] [stderr]    Compiling hello_world_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::io;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use std::borrow::BorrowMut;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `algorithms::data_structure::priority_queue`
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use algorithms::data_structure::priority_queue;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:66:54
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_open_file(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stdout]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:79:52
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn read_username_from_file() -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_open_file`
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_open_file(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file`
[INFO] [stdout]   --> src/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn read_username_from_file() -> Result<String, Box<Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeId` should have a snake case name
[INFO] [stdout]  --> src/algorithms/data_structure/simply_graph.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     nodeId: usize,
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to snake case: `node_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeName` should have a snake case name
[INFO] [stdout]  --> src/algorithms/data_structure/simply_graph.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     nodeName: String,
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to snake case: `node_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeNums` should have a snake case name
[INFO] [stdout]   --> src/algorithms/data_structure/simply_graph.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     nodeNums: usize,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to snake case: `node_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nodeId` should have a snake case name
[INFO] [stdout]   --> src/algorithms/data_structure/simply_graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(nodeId: usize, nodeName: String) -> Node {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nodeName` should have a snake case name
[INFO] [stdout]   --> src/algorithms/data_structure/simply_graph.rs:21:27
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(nodeId: usize, nodeName: String) -> Node {
[INFO] [stdout]    |                           ^^^^^^^^ help: convert the identifier to snake case: `node_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.84s
[INFO] running `Command { std: "docker" "inspect" "59b2ca8e161cb8b1a95c1d4b827103876e83d193d83d0188e78d1583c708ee00", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "59b2ca8e161cb8b1a95c1d4b827103876e83d193d83d0188e78d1583c708ee00", kill_on_drop: false }`
[INFO] [stdout] 59b2ca8e161cb8b1a95c1d4b827103876e83d193d83d0188e78d1583c708ee00
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 0ab02e788f11cab3998ce78c6d815cff0c1fc551a8b507c5c065721e6da4ce17
[INFO] running `Command { std: "docker" "start" "-a" "0ab02e788f11cab3998ce78c6d815cff0c1fc551a8b507c5c065721e6da4ce17", kill_on_drop: false }`
[INFO] [stderr]    Compiling hello_world_rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::io`
[INFO] [stdout]   --> src/main.rs:24:5
[INFO] [stdout]    |
[INFO] [stdout] 24 | use std::io;
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::process::exit`
[INFO] [stdout]   --> src/main.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 | use std::process::exit;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stdout]   --> src/main.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 | use std::borrow::BorrowMut;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `algorithms::data_structure::priority_queue`
[INFO] [stdout]   --> src/main.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 | use algorithms::data_structure::priority_queue;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:66:54
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_open_file(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stdout]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> src/main.rs:79:52
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn read_username_from_file() -> Result<String, Box<Error>> {
[INFO] [stdout]    |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `test_open_file`
[INFO] [stdout]   --> src/main.rs:66:4
[INFO] [stdout]    |
[INFO] [stdout] 66 | fn test_open_file(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `read_username_from_file`
[INFO] [stdout]   --> src/main.rs:79:4
[INFO] [stdout]    |
[INFO] [stdout] 79 | fn read_username_from_file() -> Result<String, Box<Error>> {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeId` should have a snake case name
[INFO] [stdout]  --> src/algorithms/data_structure/simply_graph.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 3 |     nodeId: usize,
[INFO] [stdout]   |     ^^^^^^ help: convert the identifier to snake case: `node_id`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeName` should have a snake case name
[INFO] [stdout]  --> src/algorithms/data_structure/simply_graph.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 |     nodeName: String,
[INFO] [stdout]   |     ^^^^^^^^ help: convert the identifier to snake case: `node_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: structure field `nodeNums` should have a snake case name
[INFO] [stdout]   --> src/algorithms/data_structure/simply_graph.rs:15:5
[INFO] [stdout]    |
[INFO] [stdout] 15 |     nodeNums: usize,
[INFO] [stdout]    |     ^^^^^^^^ help: convert the identifier to snake case: `node_nums`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nodeId` should have a snake case name
[INFO] [stdout]   --> src/algorithms/data_structure/simply_graph.rs:21:12
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(nodeId: usize, nodeName: String) -> Node {
[INFO] [stdout]    |            ^^^^^^ help: convert the identifier to snake case: `node_id`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable `nodeName` should have a snake case name
[INFO] [stdout]   --> src/algorithms/data_structure/simply_graph.rs:21:27
[INFO] [stdout]    |
[INFO] [stdout] 21 |     fn new(nodeId: usize, nodeName: String) -> Node {
[INFO] [stdout]    |                           ^^^^^^^^ help: convert the identifier to snake case: `node_name`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 13 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.65s
[INFO] running `Command { std: "docker" "inspect" "0ab02e788f11cab3998ce78c6d815cff0c1fc551a8b507c5c065721e6da4ce17", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0ab02e788f11cab3998ce78c6d815cff0c1fc551a8b507c5c065721e6da4ce17", kill_on_drop: false }`
[INFO] [stdout] 0ab02e788f11cab3998ce78c6d815cff0c1fc551a8b507c5c065721e6da4ce17
[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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+d2e9fff28e244f1ea4927194f1f9b77f93e2ffe2" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 78d6008c07e71889847348bdd5d25276f893e863ca2ccc8cbaf6e6bd72853276
[INFO] running `Command { std: "docker" "start" "-a" "78d6008c07e71889847348bdd5d25276f893e863ca2ccc8cbaf6e6bd72853276", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `std::io`
[INFO] [stderr]   --> src/main.rs:24:5
[INFO] [stderr]    |
[INFO] [stderr] 24 | use std::io;
[INFO] [stderr]    |     ^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::process::exit`
[INFO] [stderr]   --> src/main.rs:25:5
[INFO] [stderr]    |
[INFO] [stderr] 25 | use std::process::exit;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::borrow::BorrowMut`
[INFO] [stderr]   --> src/main.rs:29:5
[INFO] [stderr]    |
[INFO] [stderr] 29 | use std::borrow::BorrowMut;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `algorithms::data_structure::priority_queue`
[INFO] [stderr]   --> src/main.rs:30:5
[INFO] [stderr]    |
[INFO] [stderr] 30 | use algorithms::data_structure::priority_queue;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:66:54
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn test_open_file(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stderr]    |                                                      ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stderr]   --> src/main.rs:79:52
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn read_username_from_file() -> Result<String, Box<Error>> {
[INFO] [stderr]    |                                                    ^^^^^ help: use `dyn`: `dyn Error`
[INFO] [stderr]    |
[INFO] [stderr]    = warning: this is accepted in the current edition (Rust 2018) but is a hard error in Rust 2021!
[INFO] [stderr]    = note: for more information, see issue #80165 <https://github.com/rust-lang/rust/issues/80165>
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `test_open_file`
[INFO] [stderr]   --> src/main.rs:66:4
[INFO] [stderr]    |
[INFO] [stderr] 66 | fn test_open_file(filename: &str) -> Result<i32, Box<Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `read_username_from_file`
[INFO] [stderr]   --> src/main.rs:79:4
[INFO] [stderr]    |
[INFO] [stderr] 79 | fn read_username_from_file() -> Result<String, Box<Error>> {
[INFO] [stderr]    |    ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `nodeId` should have a snake case name
[INFO] [stderr]  --> src/algorithms/data_structure/simply_graph.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 |     nodeId: usize,
[INFO] [stderr]   |     ^^^^^^ help: convert the identifier to snake case: `node_id`
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `nodeName` should have a snake case name
[INFO] [stderr]  --> src/algorithms/data_structure/simply_graph.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 |     nodeName: String,
[INFO] [stderr]   |     ^^^^^^^^ help: convert the identifier to snake case: `node_name`
[INFO] [stderr] 
[INFO] [stderr] warning: structure field `nodeNums` should have a snake case name
[INFO] [stderr]   --> src/algorithms/data_structure/simply_graph.rs:15:5
[INFO] [stderr]    |
[INFO] [stderr] 15 |     nodeNums: usize,
[INFO] [stderr]    |     ^^^^^^^^ help: convert the identifier to snake case: `node_nums`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `nodeId` should have a snake case name
[INFO] [stderr]   --> src/algorithms/data_structure/simply_graph.rs:21:12
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(nodeId: usize, nodeName: String) -> Node {
[INFO] [stderr]    |            ^^^^^^ help: convert the identifier to snake case: `node_id`
[INFO] [stderr] 
[INFO] [stderr] warning: variable `nodeName` should have a snake case name
[INFO] [stderr]   --> src/algorithms/data_structure/simply_graph.rs:21:27
[INFO] [stderr]    |
[INFO] [stderr] 21 |     fn new(nodeId: usize, nodeName: String) -> Node {
[INFO] [stderr]    |                           ^^^^^^^^ help: convert the identifier to snake case: `node_name`
[INFO] [stderr] 
[INFO] [stderr] warning: `hello_world_rust` (bin "hello_world_rust" test) generated 13 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.06s
[INFO] [stdout] 
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/hello_world_rust-98efeebcc91f2fd3)
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "78d6008c07e71889847348bdd5d25276f893e863ca2ccc8cbaf6e6bd72853276", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "78d6008c07e71889847348bdd5d25276f893e863ca2ccc8cbaf6e6bd72853276", kill_on_drop: false }`
[INFO] [stdout] 78d6008c07e71889847348bdd5d25276f893e863ca2ccc8cbaf6e6bd72853276