[INFO] cloning repository https://github.com/ByteNybbler/VFCheeser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/ByteNybbler/VFCheeser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByteNybbler%2FVFCheeser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByteNybbler%2FVFCheeser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 1d4e2c8c5b42451e482891007c1a4757ef3842cf
[INFO] checking ByteNybbler/VFCheeser against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FByteNybbler%2FVFCheeser" "/workspace/builds/worker-6/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/ByteNybbler/VFCheeser on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/ByteNybbler/VFCheeser
[INFO] finished tweaking git repo https://github.com/ByteNybbler/VFCheeser
[INFO] tweaked toml for git repo https://github.com/ByteNybbler/VFCheeser written to /workspace/builds/worker-6/source/Cargo.toml
[INFO] crate git repo https://github.com/ByteNybbler/VFCheeser already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 7be1b8175c103fdef6279811d25785ffe0bbc9a776565553ad339e87909f0055
[INFO] running `Command { std: "docker" "start" "-a" "7be1b8175c103fdef6279811d25785ffe0bbc9a776565553ad339e87909f0055", kill_on_drop: false }`
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6/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" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 30d2de0477185fcd2d9b2333db217559167728586403bfe7100e8c4d99c0a24b
[INFO] running `Command { std: "docker" "start" "-a" "30d2de0477185fcd2d9b2333db217559167728586403bfe7100e8c4d99c0a24b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling autocfg v1.0.1
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[INFO] [stdout] warning: unused import: `crate::text_command::*`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::text_command::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `crate::text_command::*`
[INFO] [stdout]   --> src/main.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 | use crate::text_command::*;
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let stdin = std::io::stdin();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `stdin`
[INFO] [stdout]   --> src/main.rs:40:9
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let stdin = std::io::stdin();
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_stdin`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut audio_parameters = AudioParameters {
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/main.rs:30:9
[INFO] [stdout]    |
[INFO] [stdout] 30 |     let mut audio_parameters = AudioParameters {
[INFO] [stdout]    |         ----^^^^^^^^^^^^^^^^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TextCommand`
[INFO] [stdout]  --> src/text_command.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TextCommand;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute`
[INFO] [stdout]  --> src/text_command.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn execute(&self) {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TextCommandMapper`
[INFO] [stdout]   --> src/text_command.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct TextCommandMapper {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/text_command.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(command_names: HashMap<String, TextCommand>) -> TextCommandMapper {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_command_message`
[INFO] [stdout]   --> src/text_command.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn is_command_message(&self, message: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_run_command`
[INFO] [stdout]   --> src/text_command.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn try_run_command(&self, message: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_message_without_command_prefix`
[INFO] [stdout]   --> src/text_command.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn get_message_without_command_prefix<'a>(&self, message: &'a str) -> &'a str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_message_into_arguments`
[INFO] [stdout]   --> src/text_command.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn split_message_into_arguments<'a>(&self, message: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `interpret_as_command`
[INFO] [stdout]   --> src/text_command.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn interpret_as_command(&self, message: &str) -> Result<(), ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_arguments`
[INFO] [stdout]   --> src/text_command.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn parse_arguments(&self, arguments: &[&str]) -> Result<(), ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TextCommand`
[INFO] [stdout]  --> src/text_command.rs:3:12
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub struct TextCommand;
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `execute`
[INFO] [stdout]  --> src/text_command.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 |     pub fn execute(&self) {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `TextCommandMapper`
[INFO] [stdout]   --> src/text_command.rs:12:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct TextCommandMapper {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]   --> src/text_command.rs:17:12
[INFO] [stdout]    |
[INFO] [stdout] 17 |     pub fn new(command_names: HashMap<String, TextCommand>) -> TextCommandMapper {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `is_command_message`
[INFO] [stdout]   --> src/text_command.rs:23:12
[INFO] [stdout]    |
[INFO] [stdout] 23 |     pub fn is_command_message(&self, message: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `try_run_command`
[INFO] [stdout]   --> src/text_command.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 |     pub fn try_run_command(&self, message: &str) -> bool {
[INFO] [stdout]    |            ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `get_message_without_command_prefix`
[INFO] [stdout]   --> src/text_command.rs:37:8
[INFO] [stdout]    |
[INFO] [stdout] 37 |     fn get_message_without_command_prefix<'a>(&self, message: &'a str) -> &'a str {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `split_message_into_arguments`
[INFO] [stdout]   --> src/text_command.rs:41:8
[INFO] [stdout]    |
[INFO] [stdout] 41 |     fn split_message_into_arguments<'a>(&self, message: &'a str) -> Vec<&'a str> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `interpret_as_command`
[INFO] [stdout]   --> src/text_command.rs:46:8
[INFO] [stdout]    |
[INFO] [stdout] 46 |     fn interpret_as_command(&self, message: &str) -> Result<(), ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `parse_arguments`
[INFO] [stdout]   --> src/text_command.rs:51:8
[INFO] [stdout]    |
[INFO] [stdout] 51 |     fn parse_arguments(&self, arguments: &[&str]) -> Result<(), ()> {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/text_command.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             self.interpret_as_command(message);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused `Result` that must be used
[INFO] [stdout]   --> src/text_command.rs:30:13
[INFO] [stdout]    |
[INFO] [stdout] 30 |             self.interpret_as_command(message);
[INFO] [stdout]    |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 14 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 25s
[INFO] running `Command { std: "docker" "inspect" "30d2de0477185fcd2d9b2333db217559167728586403bfe7100e8c4d99c0a24b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "30d2de0477185fcd2d9b2333db217559167728586403bfe7100e8c4d99c0a24b", kill_on_drop: false }`
[INFO] [stdout] 30d2de0477185fcd2d9b2333db217559167728586403bfe7100e8c4d99c0a24b