[INFO] cloning repository https://github.com/zfortes/spl-szz
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/zfortes/spl-szz" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzfortes%2Fspl-szz", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzfortes%2Fspl-szz'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 265c5264ba02e90f64106e8fef820db3581d763b
[INFO] checking zfortes/spl-szz against try#4f260f0f20b3133d20cfb50353c0221943af5796+rustflags=-Dunmustuse_in_always_ok for pr-148577
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fzfortes%2Fspl-szz" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/zfortes/spl-szz
[INFO] finished tweaking git repo https://github.com/zfortes/spl-szz
[INFO] tweaked toml for git repo https://github.com/zfortes/spl-szz written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/zfortes/spl-szz on toolchain 4f260f0f20b3133d20cfb50353c0221943af5796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/zfortes/spl-szz 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" "+4f260f0f20b3133d20cfb50353c0221943af5796" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ebdd238443b990752cb649222fb41ba896b74fd26ed5d58017043fd8f2a60f75
[INFO] running `Command { std: "docker" "start" "-a" "ebdd238443b990752cb649222fb41ba896b74fd26ed5d58017043fd8f2a60f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ebdd238443b990752cb649222fb41ba896b74fd26ed5d58017043fd8f2a60f75", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ebdd238443b990752cb649222fb41ba896b74fd26ed5d58017043fd8f2a60f75", kill_on_drop: false }`
[INFO] [stdout] ebdd238443b990752cb649222fb41ba896b74fd26ed5d58017043fd8f2a60f75
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dunmustuse_in_always_ok" "-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+4f260f0f20b3133d20cfb50353c0221943af5796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7fc7bed7059fb27f132a5311dbb752ca5e109113da6d53605a117f010385bd6a
[INFO] running `Command { std: "docker" "start" "-a" "7fc7bed7059fb27f132a5311dbb752ca5e109113da6d53605a117f010385bd6a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.27
[INFO] [stderr]    Compiling syn v1.0.73
[INFO] [stderr]    Compiling num-traits v0.2.14
[INFO] [stderr]    Compiling libc v0.2.119
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling memchr v2.4.1
[INFO] [stderr]    Compiling num-integer v0.1.44
[INFO] [stderr]    Compiling indexmap v1.8.0
[INFO] [stderr]    Compiling serde v1.0.126
[INFO] [stderr]     Checking hashbrown v0.11.2
[INFO] [stderr]    Compiling serde_json v1.0.64
[INFO] [stderr]     Checking fixedbitset v0.4.1
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]     Checking time v0.1.44
[INFO] [stderr]     Checking petgraph v0.6.0
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking spl-szz v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]  --> src/core/graph.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use petgraph::graph::{Node, NodeIndex};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `Node`
[INFO] [stdout]  --> src/core/graph.rs:7:23
[INFO] [stdout]   |
[INFO] [stdout] 7 | use petgraph::graph::{Node, NodeIndex};
[INFO] [stdout]   |                       ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:121:29
[INFO] [stdout]     |
[INFO] [stdout] 121 | ...                   |i, weight| Some(*weight),
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:103:34
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   |i, weight| Some(*weight),
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/core/graph.rs:98:34
[INFO] [stdout]    |
[INFO] [stdout] 98 | ...                   |i, weight| Some(*weight),
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:173:18
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 |i, weight| Some(*weight),
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 |i, weight| Some(*weight),
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_retrive_file` is never used
[INFO] [stdout]   --> src/engine/git.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ModifiedFile {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn from_retrive_file(hash: &String, file_path: &String, repository_path: &String) -> Result<ModifiedFile, String>{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_repository` is never used
[INFO] [stdout]    --> src/engine/git.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub fn clear_repository(repository_path: &String){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `to_string` are never used
[INFO] [stdout]   --> src/utils/hunk.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Hunk {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(left_from: i64, left_to :i64, right_from: i64, right_to: i64, kind: i64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eq` is never used
[INFO] [stdout]   --> src/utils/vertex.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Vertex {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn eq(&self, other: Vertex) -> bool {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow<std::result::Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]  --> src/data/input/json.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/data/input/json.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow<std::result::Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]   --> src/data/input/json.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/data/input/json.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:121:29
[INFO] [stdout]     |
[INFO] [stdout] 121 | ...                   |i, weight| Some(*weight),
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:103:34
[INFO] [stdout]     |
[INFO] [stdout] 103 | ...                   |i, weight| Some(*weight),
[INFO] [stdout]     |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]   --> src/core/graph.rs:98:34
[INFO] [stdout]    |
[INFO] [stdout] 98 | ...                   |i, weight| Some(*weight),
[INFO] [stdout]    |                        ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:173:18
[INFO] [stdout]     |
[INFO] [stdout] 173 |                 |i, weight| Some(*weight),
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `i`
[INFO] [stdout]    --> src/core/graph.rs:168:18
[INFO] [stdout]     |
[INFO] [stdout] 168 |                 |i, weight| Some(*weight),
[INFO] [stdout]     |                  ^ help: if this is intentional, prefix it with an underscore: `_i`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `from_retrive_file` is never used
[INFO] [stdout]   --> src/engine/git.rs:31:12
[INFO] [stdout]    |
[INFO] [stdout] 14 | impl ModifiedFile {
[INFO] [stdout]    | ----------------- associated function in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 31 |     pub fn from_retrive_file(hash: &String, file_path: &String, repository_path: &String) -> Result<ModifiedFile, String>{
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `clear_repository` is never used
[INFO] [stdout]    --> src/engine/git.rs:138:8
[INFO] [stdout]     |
[INFO] [stdout] 138 | pub fn clear_repository(repository_path: &String){
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `to_string` are never used
[INFO] [stdout]   --> src/utils/hunk.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Hunk {
[INFO] [stdout]    | --------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(left_from: i64, left_to :i64, right_from: i64, right_to: i64, kind: i64) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     fn to_string(&self) -> String {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `eq` is never used
[INFO] [stdout]   --> src/utils/vertex.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 10 | impl Vertex {
[INFO] [stdout]    | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 28 |     pub fn eq(&self, other: Vertex) -> bool {
[INFO] [stdout]    |            ^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils/utils.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     file.write_all(file_left.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let _ = file.write_all(file_left.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils/utils.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     file.write_all(file_right.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let _ = file.write_all(file_right.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/core/szz.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         data::output::json::save_result_json(result);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let _ = data::output::json::save_result_json(result);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/core/graph.rs:123:49
[INFO] [stdout]     |
[INFO] [stdout] 123 | ...                   None => { return Err("Error in hunk: large modification".parse().unwrap())}
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow<std::result::Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]  --> src/data/input/json.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: requested on the command line with `-D unmustuse-in-always-ok`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]  --> src/data/input/json.rs:8:24
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]   |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::ops::ControlFlow<std::result::Result<Infallible, Infallible>, std::string::String>
[INFO] [stdout]   --> src/data/input/json.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]   --> src/data/input/json.rs:15:24
[INFO] [stdout]    |
[INFO] [stdout] 15 |     let file: String = fs::read_to_string(json_path.to_string())?.parse()?;
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils/utils.rs:25:5
[INFO] [stdout]    |
[INFO] [stdout] 25 |     file.write_all(file_left.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 25 |     let _ = file.write_all(file_left.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spl-szz` (bin "spl-szz" test) due to 5 previous errors; 13 warnings emitted
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]   --> src/utils/utils.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     file.write_all(file_right.as_bytes());
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 28 |     let _ = file.write_all(file_right.as_bytes());
[INFO] [stdout]    |     +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: unused `std::result::Result` that must be used
[INFO] [stdout]    --> src/core/szz.rs:111:9
[INFO] [stdout]     |
[INFO] [stdout] 111 |         data::output::json::save_result_json(result);
[INFO] [stdout]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 111 |         let _ = data::output::json::save_result_json(result);
[INFO] [stdout]     |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: std::result::Result<std::string::String, Infallible>
[INFO] [stdout]    --> src/core/graph.rs:123:49
[INFO] [stdout]     |
[INFO] [stdout] 123 | ...                   None => { return Err("Error in hunk: large modification".parse().unwrap())}
[INFO] [stdout]     |                                            ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `spl-szz` (bin "spl-szz") due to 5 previous errors; 13 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "7fc7bed7059fb27f132a5311dbb752ca5e109113da6d53605a117f010385bd6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7fc7bed7059fb27f132a5311dbb752ca5e109113da6d53605a117f010385bd6a", kill_on_drop: false }`
[INFO] [stdout] 7fc7bed7059fb27f132a5311dbb752ca5e109113da6d53605a117f010385bd6a
