[INFO] cloning repository https://github.com/billy4479/rsshell
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/billy4479/rsshell" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbilly4479%2Frsshell", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbilly4479%2Frsshell'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] b3b8f82524ff7a71e91b604484380752a98f8955
[INFO] checking billy4479/rsshell against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbilly4479%2Frsshell" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/billy4479/rsshell
[INFO] finished tweaking git repo https://github.com/billy4479/rsshell
[INFO] tweaked toml for git repo https://github.com/billy4479/rsshell written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/billy4479/rsshell on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/billy4479/rsshell 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded syn v2.0.8
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5f2136bb89143678d1c645f4bd2c7dcc01d5a194829c767ffd93e6e8c650986e
[INFO] running `Command { std: "docker" "start" "-a" "5f2136bb89143678d1c645f4bd2c7dcc01d5a194829c767ffd93e6e8c650986e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5f2136bb89143678d1c645f4bd2c7dcc01d5a194829c767ffd93e6e8c650986e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5f2136bb89143678d1c645f4bd2c7dcc01d5a194829c767ffd93e6e8c650986e", kill_on_drop: false }`
[INFO] [stdout] 5f2136bb89143678d1c645f4bd2c7dcc01d5a194829c767ffd93e6e8c650986e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "RUSTDOCFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 63941ad0ffa1f647999370a6ccccff0c48191922720ebd020534effecb1c2813
[INFO] running `Command { std: "docker" "start" "-a" "63941ad0ffa1f647999370a6ccccff0c48191922720ebd020534effecb1c2813", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.53
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v2.0.8
[INFO] [stderr]    Compiling thiserror-impl v1.0.40
[INFO] [stderr]     Checking thiserror v1.0.40
[INFO] [stderr]     Checking rsshell v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `parenthesis`
[INFO] [stdout]   --> src/expansions.rs:63:40
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     Token::Parenthesis(parenthesis) => {
[INFO] [stdout]    |                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parenthesis`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/expansions.rs:87:28
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn arithmetic_substitution(iter: &mut Peekable<Iter<Token>>) -> String {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `parenthesis`
[INFO] [stdout]   --> src/expansions.rs:63:40
[INFO] [stdout]    |
[INFO] [stdout] 63 |                     Token::Parenthesis(parenthesis) => {
[INFO] [stdout]    |                                        ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_parenthesis`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/expansions.rs:87:28
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn arithmetic_substitution(iter: &mut Peekable<Iter<Token>>) -> String {
[INFO] [stdout]    |                            ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/expansions.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn parameter_substitution(iter: &mut Peekable<Iter<Token>>) -> String {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]   --> src/expansions.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn command_substitution(command: &str) -> String {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `iter`
[INFO] [stdout]   --> src/expansions.rs:91:27
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn parameter_substitution(iter: &mut Peekable<Iter<Token>>) -> String {
[INFO] [stdout]    |                           ^^^^ help: if this is intentional, prefix it with an underscore: `_iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]   --> src/expansions.rs:95:25
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn command_substitution(command: &str) -> String {
[INFO] [stdout]    |                         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `arithmetic_substitution` is never used
[INFO] [stdout]   --> src/expansions.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn arithmetic_substitution(iter: &mut Peekable<Iter<Token>>) -> 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 `arithmetic_substitution` is never used
[INFO] [stdout]   --> src/expansions.rs:87:4
[INFO] [stdout]    |
[INFO] [stdout] 87 | fn arithmetic_substitution(iter: &mut Peekable<Iter<Token>>) -> 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 `parameter_substitution` is never used
[INFO] [stdout]   --> src/expansions.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn parameter_substitution(iter: &mut Peekable<Iter<Token>>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `command_substitution` is never used
[INFO] [stdout]   --> src/expansions.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn command_substitution(command: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidCharacter` is never constructed
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum ParseError {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 3 |     #[error("Invalid character: '{0}'")]
[INFO] [stdout] 4 |     InvalidCharacter(char),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` 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 `parameter_substitution` is never used
[INFO] [stdout]   --> src/expansions.rs:91:4
[INFO] [stdout]    |
[INFO] [stdout] 91 | fn parameter_substitution(iter: &mut Peekable<Iter<Token>>) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `command_substitution` is never used
[INFO] [stdout]   --> src/expansions.rs:95:4
[INFO] [stdout]    |
[INFO] [stdout] 95 | fn command_substitution(command: &str) -> String {
[INFO] [stdout]    |    ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `InvalidCharacter` is never constructed
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum ParseError {
[INFO] [stdout]   |          ---------- variant in this enum
[INFO] [stdout] 3 |     #[error("Invalid character: '{0}'")]
[INFO] [stdout] 4 |     InvalidCharacter(char),
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/expansions.rs:33:53
[INFO] [stdout]    |
[INFO] [stdout] 33 | ...                   to_expand.push(token.deref().clone());
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Token` does not implement `Deref`, so calling `deref` on `&Token` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 33 -                                 to_expand.push(token.deref().clone());
[INFO] [stdout] 33 +                                 to_expand.push(token.clone());
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Token`, implement `Clone` for it
[INFO] [stdout]   --> src/parser.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 + #[derive(Clone)]
[INFO] [stdout] 22 | pub enum Token {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/expansions.rs:36:53
[INFO] [stdout]    |
[INFO] [stdout] 36 | ...                   to_expand.push(token.deref().clone());
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Token` does not implement `Deref`, so calling `deref` on `&Token` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 36 -                                 to_expand.push(token.deref().clone());
[INFO] [stdout] 36 +                                 to_expand.push(token.clone());
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Token`, implement `Clone` for it
[INFO] [stdout]   --> src/parser.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 + #[derive(Clone)]
[INFO] [stdout] 22 | pub enum Token {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/expansions.rs:33:53
[INFO] [stdout]    |
[INFO] [stdout] 33 | ...                   to_expand.push(token.deref().clone());
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Token` does not implement `Deref`, so calling `deref` on `&Token` copies the reference, which does not do anything and can be removed
[INFO] [stdout]    = note: `#[warn(noop_method_call)]` on by default
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 33 -                                 to_expand.push(token.deref().clone());
[INFO] [stdout] 33 +                                 to_expand.push(token.clone());
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Token`, implement `Clone` for it
[INFO] [stdout]   --> src/parser.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 + #[derive(Clone)]
[INFO] [stdout] 22 | pub enum Token {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: call to `.deref()` on a reference in this situation does nothing
[INFO] [stdout]   --> src/expansions.rs:36:53
[INFO] [stdout]    |
[INFO] [stdout] 36 | ...                   to_expand.push(token.deref().clone());
[INFO] [stdout]    |                                           ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: the type `Token` does not implement `Deref`, so calling `deref` on `&Token` copies the reference, which does not do anything and can be removed
[INFO] [stdout] help: remove this redundant call
[INFO] [stdout]    |
[INFO] [stdout] 36 -                                 to_expand.push(token.deref().clone());
[INFO] [stdout] 36 +                                 to_expand.push(token.clone());
[INFO] [stdout]    |
[INFO] [stdout] help: if you meant to clone `Token`, implement `Clone` for it
[INFO] [stdout]   --> src/parser.rs:21:1
[INFO] [stdout]    |
[INFO] [stdout] 21 + #[derive(Clone)]
[INFO] [stdout] 22 | pub enum Token {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 5.54s
[INFO] running `Command { std: "docker" "inspect" "63941ad0ffa1f647999370a6ccccff0c48191922720ebd020534effecb1c2813", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "63941ad0ffa1f647999370a6ccccff0c48191922720ebd020534effecb1c2813", kill_on_drop: false }`
[INFO] [stdout] 63941ad0ffa1f647999370a6ccccff0c48191922720ebd020534effecb1c2813
