[INFO] cloning repository https://github.com/dominik-korsa/iobot
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/dominik-korsa/iobot" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominik-korsa%2Fiobot", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fdominik-korsa%2Fiobot'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] ec767579b5007323379aa164f2670a13987348e5
[INFO] checking dominik-korsa/iobot 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%2Fdominik-korsa%2Fiobot" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/dominik-korsa/iobot
[INFO] finished tweaking git repo https://github.com/dominik-korsa/iobot
[INFO] tweaked toml for git repo https://github.com/dominik-korsa/iobot written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/dominik-korsa/iobot 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/dominik-korsa/iobot 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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 33219548c3a947062f883c53fe0c4cdfa1948a41f9e4c42af46e9ec8deccb457
[INFO] running `Command { std: "docker" "start" "-a" "33219548c3a947062f883c53fe0c4cdfa1948a41f9e4c42af46e9ec8deccb457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "33219548c3a947062f883c53fe0c4cdfa1948a41f9e4c42af46e9ec8deccb457", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "33219548c3a947062f883c53fe0c4cdfa1948a41f9e4c42af46e9ec8deccb457", kill_on_drop: false }`
[INFO] [stdout] 33219548c3a947062f883c53fe0c4cdfa1948a41f9e4c42af46e9ec8deccb457
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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] 32068485b3805f43531fee047317febdec49b6e22bf8b587a929babdd3717535
[INFO] running `Command { std: "docker" "start" "-a" "32068485b3805f43531fee047317febdec49b6e22bf8b587a929babdd3717535", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.105
[INFO] [stderr]    Compiling proc-macro2 v1.0.32
[INFO] [stderr]    Compiling syn v1.0.81
[INFO] [stderr]     Checking unicode-width v0.1.9
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]     Checking tinyvec v1.5.0
[INFO] [stderr]    Compiling serde_derive v1.0.130
[INFO] [stderr]    Compiling const-sha1 v0.2.0
[INFO] [stderr]     Checking matches v0.1.9
[INFO] [stderr]     Checking ppv-lite86 v0.2.15
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling serde v1.0.130
[INFO] [stderr]     Checking unicode-bidi v0.3.7
[INFO] [stderr]     Checking os_str_bytes v4.2.0
[INFO] [stderr]     Checking zeroize v1.4.2
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]     Checking form_urlencoded v1.0.1
[INFO] [stderr]     Checking textwrap v0.14.2
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]     Checking itertools v0.10.1
[INFO] [stderr]     Checking maplit v1.0.2
[INFO] [stderr]     Checking fs_extra v1.2.0
[INFO] [stderr]    Compiling quote v1.0.10
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking getrandom v0.2.3
[INFO] [stderr]     Checking terminal_size v0.1.17
[INFO] [stderr]     Checking time v0.1.43
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking console v0.15.0
[INFO] [stderr]     Checking rand_core v0.6.3
[INFO] [stderr]     Checking uuid v0.8.2
[INFO] [stderr]     Checking threadpool v1.8.1
[INFO] [stderr]     Checking unicode-normalization v0.1.19
[INFO] [stderr]     Checking chrono v0.4.19
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking indicatif v0.16.2
[INFO] [stderr]     Checking rand v0.8.4
[INFO] [stderr]     Checking idna v0.2.3
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking url v2.2.2
[INFO] [stderr]     Checking dialoguer v0.9.0
[INFO] [stderr]    Compiling windows_gen v0.9.1
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.5
[INFO] [stderr]     Checking clap v3.0.0-beta.5
[INFO] [stderr]    Compiling windows_macros v0.9.1
[INFO] [stderr]    Compiling windows v0.9.1
[INFO] [stderr]    Compiling trash v2.0.2
[INFO] [stderr]     Checking serde_yaml v0.8.21
[INFO] [stderr]     Checking iobot v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: methods `as_files` and `as_input_ref` are never used
[INFO] [stdout]    --> src/config.rs:96:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl FilesInput {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout]  96 |     pub fn as_files(&self) -> &Files {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn as_input_ref(&self) -> InputRef {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_input` is never used
[INFO] [stdout]    --> src/config.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl Config {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn get_input(&self) -> InputRef {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/generator.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     IO(io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenerateInputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 43 -     IO(io::Error),
[INFO] [stdout] 43 +     IO(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `index` and `error` are never read
[INFO] [stdout]   --> src/generator.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Run { index: u64, error: RunError },
[INFO] [stdout]    |     ---   ^^^^^       ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenerateInputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/generator.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     GeneratorCompile(CompileError),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenerateInputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 45 -     GeneratorCompile(CompileError),
[INFO] [stdout] 45 +     GeneratorCompile(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/generator.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     IO(io::Error),
[INFO] [stdout]     |     -- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GenerateOutputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 144 -     IO(io::Error),
[INFO] [stdout] 144 +     IO(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/generator.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |     Run(RunError),
[INFO] [stdout]     |     --- ^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GenerateOutputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 145 -     Run(RunError),
[INFO] [stdout] 145 +     Run(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/generator.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 |     GeneratorCompile(CompileError),
[INFO] [stdout]     |     ---------------- ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GenerateOutputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 146 -     GeneratorCompile(CompileError),
[INFO] [stdout] 146 +     GeneratorCompile(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/runner.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     IO(io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     IO(io::Error),
[INFO] [stdout] 23 +     IO(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/runner.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct RunError(pub Option<i32>);
[INFO] [stdout]    |            -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_lines` is never used
[INFO] [stdout]  --> src/utils.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn to_lines(output: &Vec<u8>) -> Result<Vec<String>, Utf8Error> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Output` is never constructed
[INFO] [stdout]   --> src/utils.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum FilesType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] 32 |     Input,
[INFO] [stdout] 33 |     Output,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FilesType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/commands/generate.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub source: PathBuf,
[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: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/commands/generate.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub generated: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/commands/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub tests: PathBuf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/commands/test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub program: PathBuf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/config.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn as_input_ref(&self) -> InputRef {
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn as_input_ref(&self) -> InputRef<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn as_input_ref(&self) -> InputRef {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn as_input_ref(&self) -> InputRef<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config.rs:162:22
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn get_input(&self) -> InputRef {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn get_input(&self) -> InputRef<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config.rs:188:22
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get_input(&self) -> InputRef {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get_input(&self) -> InputRef<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `as_files` and `as_input_ref` are never used
[INFO] [stdout]    --> src/config.rs:96:12
[INFO] [stdout]     |
[INFO] [stdout]  95 | impl FilesInput {
[INFO] [stdout]     | --------------- methods in this implementation
[INFO] [stdout]  96 |     pub fn as_files(&self) -> &Files {
[INFO] [stdout]     |            ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 102 |     pub fn as_input_ref(&self) -> InputRef {
[INFO] [stdout]     |            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `get_input` is never used
[INFO] [stdout]    --> src/config.rs:162:12
[INFO] [stdout]     |
[INFO] [stdout] 157 | impl Config {
[INFO] [stdout]     | ----------- method in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 162 |     pub fn get_input(&self) -> InputRef {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/generator.rs:43:8
[INFO] [stdout]    |
[INFO] [stdout] 43 |     IO(io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenerateInputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 43 -     IO(io::Error),
[INFO] [stdout] 43 +     IO(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `index` and `error` are never read
[INFO] [stdout]   --> src/generator.rs:44:11
[INFO] [stdout]    |
[INFO] [stdout] 44 |     Run { index: u64, error: RunError },
[INFO] [stdout]    |     ---   ^^^^^       ^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     fields in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenerateInputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/generator.rs:45:22
[INFO] [stdout]    |
[INFO] [stdout] 45 |     GeneratorCompile(CompileError),
[INFO] [stdout]    |     ---------------- ^^^^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `GenerateInputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 45 -     GeneratorCompile(CompileError),
[INFO] [stdout] 45 +     GeneratorCompile(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/generator.rs:144:8
[INFO] [stdout]     |
[INFO] [stdout] 144 |     IO(io::Error),
[INFO] [stdout]     |     -- ^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GenerateOutputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 144 -     IO(io::Error),
[INFO] [stdout] 144 +     IO(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/generator.rs:145:9
[INFO] [stdout]     |
[INFO] [stdout] 145 |     Run(RunError),
[INFO] [stdout]     |     --- ^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GenerateOutputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 145 -     Run(RunError),
[INFO] [stdout] 145 +     Run(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]    --> src/generator.rs:146:22
[INFO] [stdout]     |
[INFO] [stdout] 146 |     GeneratorCompile(CompileError),
[INFO] [stdout]     |     ---------------- ^^^^^^^^^^^^
[INFO] [stdout]     |     |
[INFO] [stdout]     |     field in this variant
[INFO] [stdout]     |
[INFO] [stdout]     = note: `GenerateOutputsError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 146 -     GeneratorCompile(CompileError),
[INFO] [stdout] 146 +     GeneratorCompile(()),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/runner.rs:23:8
[INFO] [stdout]    |
[INFO] [stdout] 23 |     IO(io::Error),
[INFO] [stdout]    |     -- ^^^^^^^^^
[INFO] [stdout]    |     |
[INFO] [stdout]    |     field in this variant
[INFO] [stdout]    |
[INFO] [stdout]    = note: `CompileError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]    |
[INFO] [stdout] 23 -     IO(io::Error),
[INFO] [stdout] 23 +     IO(()),
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `0` is never read
[INFO] [stdout]   --> src/runner.rs:75:21
[INFO] [stdout]    |
[INFO] [stdout] 75 | pub struct RunError(pub Option<i32>);
[INFO] [stdout]    |            -------- ^^^^^^^^^^^^^^^
[INFO] [stdout]    |            |
[INFO] [stdout]    |            field in this struct
[INFO] [stdout]    |
[INFO] [stdout]    = help: consider removing this field
[INFO] [stdout]    = note: `RunError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `to_lines` is never used
[INFO] [stdout]  --> src/utils.rs:6:8
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub fn to_lines(output: &Vec<u8>) -> Result<Vec<String>, Utf8Error> {
[INFO] [stdout]   |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Output` is never constructed
[INFO] [stdout]   --> src/utils.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 31 | pub enum FilesType {
[INFO] [stdout]    |          --------- variant in this enum
[INFO] [stdout] 32 |     Input,
[INFO] [stdout] 33 |     Output,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `FilesType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/commands/generate.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     pub source: PathBuf,
[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: Result<PathBuf, Infallible>
[INFO] [stdout]   --> src/commands/generate.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     pub generated: PathBuf,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/commands/test.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub tests: PathBuf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: this type will no longer be must used: Result<PathBuf, Infallible>
[INFO] [stdout]  --> src/commands/test.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 |     pub program: PathBuf,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iobot` (bin "iobot" test) due to 4 previous errors; 16 warnings emitted
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]   --> src/config.rs:81:25
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn as_input_ref(&self) -> InputRef {
[INFO] [stdout]    |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]    |                         |
[INFO] [stdout]    |                         the lifetime is elided here
[INFO] [stdout]    |
[INFO] [stdout]    = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout]    = note: `#[warn(mismatched_lifetime_syntaxes)]` on by default
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]    |
[INFO] [stdout] 81 |     pub fn as_input_ref(&self) -> InputRef<'_> {
[INFO] [stdout]    |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config.rs:102:25
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn as_input_ref(&self) -> InputRef {
[INFO] [stdout]     |                         ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                         |
[INFO] [stdout]     |                         the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 102 |     pub fn as_input_ref(&self) -> InputRef<'_> {
[INFO] [stdout]     |                                           ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config.rs:162:22
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn get_input(&self) -> InputRef {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 162 |     pub fn get_input(&self) -> InputRef<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/config.rs:188:22
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get_input(&self) -> InputRef {
[INFO] [stdout]     |                      ^^^^^     ^^^^^^^^ the same lifetime is hidden here
[INFO] [stdout]     |                      |
[INFO] [stdout]     |                      the lifetime is elided here
[INFO] [stdout]     |
[INFO] [stdout]     = help: the same lifetime is referred to in inconsistent ways, making the signature confusing
[INFO] [stdout] help: use `'_` for type paths
[INFO] [stdout]     |
[INFO] [stdout] 188 |     pub fn get_input(&self) -> InputRef<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `iobot` (bin "iobot") due to 4 previous errors; 16 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "32068485b3805f43531fee047317febdec49b6e22bf8b587a929babdd3717535", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "32068485b3805f43531fee047317febdec49b6e22bf8b587a929babdd3717535", kill_on_drop: false }`
[INFO] [stdout] 32068485b3805f43531fee047317febdec49b6e22bf8b587a929babdd3717535
