[INFO] cloning repository https://github.com/Truthixify/scheme-interpreter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Truthixify/scheme-interpreter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTruthixify%2Fscheme-interpreter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTruthixify%2Fscheme-interpreter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2cc2399e2c6cf64d7a6ef6a59b54d0721bcc5032
[INFO] checking Truthixify/scheme-interpreter against a5689b034ad287112f709693384a37f1377eb9cc for pr-129249-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTruthixify%2Fscheme-interpreter" "/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/Truthixify/scheme-interpreter
[INFO] finished tweaking git repo https://github.com/Truthixify/scheme-interpreter
[INFO] tweaked toml for git repo https://github.com/Truthixify/scheme-interpreter written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Truthixify/scheme-interpreter on toolchain a5689b034ad287112f709693384a37f1377eb9cc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Truthixify/scheme-interpreter 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" "+a5689b034ad287112f709693384a37f1377eb9cc" "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/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,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" "-m" "1610612736" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:77db811e55d90add9212f6832c23229e3de5f1c1f9905e8cb07319ea15df73ac" "sleep" "infinity", kill_on_drop: false }`
[INFO] [stdout] 913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645
[INFO] running `Command { std: "docker" "start" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-w" "/opt/rustwide/workdir" "--user" "0:0" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "exec" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-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" "-w" "/opt/rustwide/workdir" "--user" "0:0" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645" "/opt/rustwide/cargo-home/bin/cargo" "+a5689b034ad287112f709693384a37f1377eb9cc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.92
[INFO] [stderr]    Compiling unicode-ident v1.0.14
[INFO] [stderr]    Compiling libc v0.2.167
[INFO] [stderr]     Checking gimli v0.31.1
[INFO] [stderr]    Compiling rustix v0.38.41
[INFO] [stderr]     Checking memchr v2.7.4
[INFO] [stderr]     Checking bitflags v2.6.0
[INFO] [stderr]     Checking rustc-demangle v0.1.24
[INFO] [stderr]    Compiling owo-colors v4.1.0
[INFO] [stderr]     Checking linux-raw-sys v0.4.14
[INFO] [stderr]     Checking miniz_oxide v0.8.0
[INFO] [stderr]     Checking clap_lex v0.7.3
[INFO] [stderr]    Compiling thiserror v2.0.3
[INFO] [stderr]     Checking unicode-linebreak v0.1.5
[INFO] [stderr]     Checking is_ci v1.2.0
[INFO] [stderr]     Checking supports-unicode v3.0.0
[INFO] [stderr]     Checking supports-hyperlinks v3.1.0
[INFO] [stderr]     Checking supports-color v3.0.2
[INFO] [stderr]     Checking clap_builder v4.5.21
[INFO] [stderr]     Checking textwrap v0.16.1
[INFO] [stderr]     Checking object v0.36.5
[INFO] [stderr]    Compiling quote v1.0.37
[INFO] [stderr]    Compiling syn v2.0.90
[INFO] [stderr]     Checking terminal_size v0.4.1
[INFO] [stderr]     Checking addr2line v0.24.2
[INFO] [stderr]    Compiling thiserror-impl v1.0.69
[INFO] [stderr]    Compiling clap_derive v4.5.18
[INFO] [stderr]    Compiling miette-derive v7.4.0
[INFO] [stderr]    Compiling thiserror-impl v2.0.3
[INFO] [stderr]     Checking backtrace v0.3.74
[INFO] [stderr]     Checking backtrace-ext v0.2.1
[INFO] [stderr]     Checking thiserror v1.0.69
[INFO] [stderr]     Checking miette v7.4.0
[INFO] [stderr]     Checking clap v4.5.21
[INFO] [stderr]     Checking scheme-rust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/evaluator.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             _ => Err("Unexpected expression".to_string()),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/evaluator.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 24 | /             Pair::Atom(Atom::Number(_))
[INFO] [stdout] 25 | |             | Pair::Atom(Atom::String(_))
[INFO] [stdout] 26 | |             | Pair::Atom(Atom::Bool(_))
[INFO] [stdout] 27 | |             | Pair::Atom(Atom::Nil)
[INFO] [stdout] 28 | |             | Pair::Atom(Atom::Op(_)) => Ok(expr),
[INFO] [stdout]    | |_____________________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 31 |               Pair::Atom(Atom::Symbol(sym)) => self
[INFO] [stdout]    |               ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 65 |               Pair::Cons(head, args) => {
[INFO] [stdout]    |               ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 71 |               _ => Err("Unexpected expression".to_string()),
[INFO] [stdout]    |               ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 return Err("malformed list".into());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 27 -                 return Err("malformed list".into());
[INFO] [stdout] 27 +                 return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 27 -                 return Err("malformed list".into());
[INFO] [stdout] 27 +                 return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:31:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |             return Err("not a number".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 31 -             return Err("not a number".into());
[INFO] [stdout] 31 +             return Err("not a number");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 31 -             return Err("not a number".into());
[INFO] [stdout] 31 +             return Err(<&str as Into<_>>::into("not a number"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 Err("- requires at least 1 argument".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 52 -                 Err("- requires at least 1 argument".into())
[INFO] [stdout] 52 +                 Err("- requires at least 1 argument")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 52 -                 Err("- requires at least 1 argument".into())
[INFO] [stdout] 52 +                 Err(<&str as Into<_>>::into("- requires at least 1 argument"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     return Err("malformed list".into());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 61 -                     return Err("malformed list".into());
[INFO] [stdout] 61 +                     return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 61 -                     return Err("malformed list".into());
[INFO] [stdout] 61 +                     return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 Err("not a number".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 64 -                 Err("not a number".into())
[INFO] [stdout] 64 +                 Err("not a number")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 64 -                 Err("not a number".into())
[INFO] [stdout] 64 +                 Err(<&str as Into<_>>::into("not a number"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 Err("/ requires at least 1 argument".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 72 -                 Err("/ requires at least 1 argument".into())
[INFO] [stdout] 72 +                 Err("/ requires at least 1 argument")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 72 -                 Err("/ requires at least 1 argument".into())
[INFO] [stdout] 72 +                 Err(<&str as Into<_>>::into("/ requires at least 1 argument"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:81:32
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     return Err("malformed list".into());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 81 -                     return Err("malformed list".into());
[INFO] [stdout] 81 +                     return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 81 -                     return Err("malformed list".into());
[INFO] [stdout] 81 +                     return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 Err("not a number".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 84 -                 Err("not a number".into())
[INFO] [stdout] 84 +                 Err("not a number")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 84 -                 Err("not a number".into())
[INFO] [stdout] 84 +                 Err(<&str as Into<_>>::into("not a number"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Err("expt requires at least 2 arguments".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 90 -                 Err("expt requires at least 2 arguments".into())
[INFO] [stdout] 90 +                 Err("expt requires at least 2 arguments")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 90 -                 Err("expt requires at least 2 arguments".into())
[INFO] [stdout] 90 +                 Err(<&str as Into<_>>::into("expt requires at least 2 arguments"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |                         Err("pow requires exactly 2 arguments".into())
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 94 -                         Err("pow requires exactly 2 arguments".into())
[INFO] [stdout] 94 +                         Err("pow requires exactly 2 arguments")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 94 -                         Err("pow requires exactly 2 arguments".into())
[INFO] [stdout] 94 +                         Err(<&str as Into<_>>::into("pow requires exactly 2 arguments"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:99:32
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     return Err("malformed list".into());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     return Err("malformed list".into());
[INFO] [stdout] 99 +                     return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     return Err("malformed list".into());
[INFO] [stdout] 99 +                     return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 Err("not a number".into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 Err("not a number".into())
[INFO] [stdout] 102 +                 Err("not a number")
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 Err("not a number".into())
[INFO] [stdout] 102 +                 Err(<&str as Into<_>>::into("not a number"))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |         _ => Err("invalid operator".into()),
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 106 -         _ => Err("invalid operator".into()),
[INFO] [stdout] 106 +         _ => Err("invalid operator"),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 106 -         _ => Err("invalid operator".into()),
[INFO] [stdout] 106 +         _ => Err(<&str as Into<_>>::into("invalid operator")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:122:25
[INFO] [stdout]     |
[INFO] [stdout] 122 |         _ => return Err("invalid operator".into()),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 122 -         _ => return Err("invalid operator".into()),
[INFO] [stdout] 122 +         _ => return Err("invalid operator"),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 122 -         _ => return Err("invalid operator".into()),
[INFO] [stdout] 122 +         _ => return Err(<&str as Into<_>>::into("invalid operator")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:137:33
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 _ => return Err("invalid argument".into()),
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 137 -                 _ => return Err("invalid argument".into()),
[INFO] [stdout] 137 +                 _ => return Err("invalid argument"),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 137 -                 _ => return Err("invalid argument".into()),
[INFO] [stdout] 137 +                 _ => return Err(<&str as Into<_>>::into("invalid argument")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         Err("no arguments provided".into())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 147 -         Err("no arguments provided".into())
[INFO] [stdout] 147 +         Err("no arguments provided")
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 147 -         Err("no arguments provided".into())
[INFO] [stdout] 147 +         Err(<&str as Into<_>>::into("no arguments provided"))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scheme-rust` (lib) due to 16 previous errors; 1 warning emitted
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]   --> src/evaluator.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 71 |             _ => Err("Unexpected expression".to_string()),
[INFO] [stdout]    |             ^ no value can reach this
[INFO] [stdout]    |
[INFO] [stdout] note: multiple earlier patterns match some of the same values
[INFO] [stdout]   --> src/evaluator.rs:71:13
[INFO] [stdout]    |
[INFO] [stdout] 24 | /             Pair::Atom(Atom::Number(_))
[INFO] [stdout] 25 | |             | Pair::Atom(Atom::String(_))
[INFO] [stdout] 26 | |             | Pair::Atom(Atom::Bool(_))
[INFO] [stdout] 27 | |             | Pair::Atom(Atom::Nil)
[INFO] [stdout] 28 | |             | Pair::Atom(Atom::Op(_)) => Ok(expr),
[INFO] [stdout]    | |_____________________________________- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 31 |               Pair::Atom(Atom::Symbol(sym)) => self
[INFO] [stdout]    |               ----------------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 65 |               Pair::Cons(head, args) => {
[INFO] [stdout]    |               ---------------------- matches some of the same values
[INFO] [stdout] ...
[INFO] [stdout] 71 |               _ => Err("Unexpected expression".to_string()),
[INFO] [stdout]    |               ^ collectively making this unreachable
[INFO] [stdout]    = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:27:28
[INFO] [stdout]    |
[INFO] [stdout] 27 |                 return Err("malformed list".into());
[INFO] [stdout]    |                            ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout]    = note: `#[deny(self_type_conversion)]` on by default
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 27 -                 return Err("malformed list".into());
[INFO] [stdout] 27 +                 return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 27 -                 return Err("malformed list".into());
[INFO] [stdout] 27 +                 return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:31:24
[INFO] [stdout]    |
[INFO] [stdout] 31 |             return Err("not a number".into());
[INFO] [stdout]    |                        ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 31 -             return Err("not a number".into());
[INFO] [stdout] 31 +             return Err("not a number");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 31 -             return Err("not a number".into());
[INFO] [stdout] 31 +             return Err(<&str as Into<_>>::into("not a number"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:52:21
[INFO] [stdout]    |
[INFO] [stdout] 52 |                 Err("- requires at least 1 argument".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 52 -                 Err("- requires at least 1 argument".into())
[INFO] [stdout] 52 +                 Err("- requires at least 1 argument")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 52 -                 Err("- requires at least 1 argument".into())
[INFO] [stdout] 52 +                 Err(<&str as Into<_>>::into("- requires at least 1 argument"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:61:32
[INFO] [stdout]    |
[INFO] [stdout] 61 |                     return Err("malformed list".into());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 61 -                     return Err("malformed list".into());
[INFO] [stdout] 61 +                     return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 61 -                     return Err("malformed list".into());
[INFO] [stdout] 61 +                     return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:64:21
[INFO] [stdout]    |
[INFO] [stdout] 64 |                 Err("not a number".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 64 -                 Err("not a number".into())
[INFO] [stdout] 64 +                 Err("not a number")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 64 -                 Err("not a number".into())
[INFO] [stdout] 64 +                 Err(<&str as Into<_>>::into("not a number"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:72:21
[INFO] [stdout]    |
[INFO] [stdout] 72 |                 Err("/ requires at least 1 argument".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 72 -                 Err("/ requires at least 1 argument".into())
[INFO] [stdout] 72 +                 Err("/ requires at least 1 argument")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 72 -                 Err("/ requires at least 1 argument".into())
[INFO] [stdout] 72 +                 Err(<&str as Into<_>>::into("/ requires at least 1 argument"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:81:32
[INFO] [stdout]    |
[INFO] [stdout] 81 |                     return Err("malformed list".into());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 81 -                     return Err("malformed list".into());
[INFO] [stdout] 81 +                     return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 81 -                     return Err("malformed list".into());
[INFO] [stdout] 81 +                     return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:84:21
[INFO] [stdout]    |
[INFO] [stdout] 84 |                 Err("not a number".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 84 -                 Err("not a number".into())
[INFO] [stdout] 84 +                 Err("not a number")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 84 -                 Err("not a number".into())
[INFO] [stdout] 84 +                 Err(<&str as Into<_>>::into("not a number"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:90:21
[INFO] [stdout]    |
[INFO] [stdout] 90 |                 Err("expt requires at least 2 arguments".into())
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 90 -                 Err("expt requires at least 2 arguments".into())
[INFO] [stdout] 90 +                 Err("expt requires at least 2 arguments")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 90 -                 Err("expt requires at least 2 arguments".into())
[INFO] [stdout] 90 +                 Err(<&str as Into<_>>::into("expt requires at least 2 arguments"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:94:29
[INFO] [stdout]    |
[INFO] [stdout] 94 |                         Err("pow requires exactly 2 arguments".into())
[INFO] [stdout]    |                             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 94 -                         Err("pow requires exactly 2 arguments".into())
[INFO] [stdout] 94 +                         Err("pow requires exactly 2 arguments")
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 94 -                         Err("pow requires exactly 2 arguments".into())
[INFO] [stdout] 94 +                         Err(<&str as Into<_>>::into("pow requires exactly 2 arguments"))
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]   --> src/scalc.rs:99:32
[INFO] [stdout]    |
[INFO] [stdout] 99 |                     return Err("malformed list".into());
[INFO] [stdout]    |                                ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     return Err("malformed list".into());
[INFO] [stdout] 99 +                     return Err("malformed list");
[INFO] [stdout]    |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]    |
[INFO] [stdout] 99 -                     return Err("malformed list".into());
[INFO] [stdout] 99 +                     return Err(<&str as Into<_>>::into("malformed list"));
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:102:21
[INFO] [stdout]     |
[INFO] [stdout] 102 |                 Err("not a number".into())
[INFO] [stdout]     |                     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 Err("not a number".into())
[INFO] [stdout] 102 +                 Err("not a number")
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 102 -                 Err("not a number".into())
[INFO] [stdout] 102 +                 Err(<&str as Into<_>>::into("not a number"))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:106:18
[INFO] [stdout]     |
[INFO] [stdout] 106 |         _ => Err("invalid operator".into()),
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 106 -         _ => Err("invalid operator".into()),
[INFO] [stdout] 106 +         _ => Err("invalid operator"),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 106 -         _ => Err("invalid operator".into()),
[INFO] [stdout] 106 +         _ => Err(<&str as Into<_>>::into("invalid operator")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:122:25
[INFO] [stdout]     |
[INFO] [stdout] 122 |         _ => return Err("invalid operator".into()),
[INFO] [stdout]     |                         ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 122 -         _ => return Err("invalid operator".into()),
[INFO] [stdout] 122 +         _ => return Err("invalid operator"),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 122 -         _ => return Err("invalid operator".into()),
[INFO] [stdout] 122 +         _ => return Err(<&str as Into<_>>::into("invalid operator")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:137:33
[INFO] [stdout]     |
[INFO] [stdout] 137 |                 _ => return Err("invalid argument".into()),
[INFO] [stdout]     |                                 ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 137 -                 _ => return Err("invalid argument".into()),
[INFO] [stdout] 137 +                 _ => return Err("invalid argument"),
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 137 -                 _ => return Err("invalid argument".into()),
[INFO] [stdout] 137 +                 _ => return Err(<&str as Into<_>>::into("invalid argument")),
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: useless conversion to the same type: `&str`
[INFO] [stdout]    --> src/scalc.rs:147:13
[INFO] [stdout]     |
[INFO] [stdout] 147 |         Err("no arguments provided".into())
[INFO] [stdout]     |             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: this method call relies on the `impl<T> Into<T> for T` blanket implementation and type inference, which is a semver hazard as a new `impl Into<_>` that affects your type might be added in the future causing type inference errors
[INFO] [stdout] help: consider removing the conversion call
[INFO] [stdout]     |
[INFO] [stdout] 147 -         Err("no arguments provided".into())
[INFO] [stdout] 147 +         Err("no arguments provided")
[INFO] [stdout]     |
[INFO] [stdout] help: you can use the fully-qualified path to avoid triggering this lint
[INFO] [stdout]     |
[INFO] [stdout] 147 -         Err("no arguments provided".into())
[INFO] [stdout] 147 +         Err(<&str as Into<_>>::into("no arguments provided"))
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/parser.rs:411:27
[INFO] [stdout]     |
[INFO] [stdout] 411 |     fn parse_input(input: &str) -> Result<Pair, Error> {
[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] 411 |     fn parse_input(input: &str) -> Result<Pair<'_>, Error> {
[INFO] [stdout]     |                                               ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: hiding a lifetime that's elided elsewhere is confusing
[INFO] [stdout]    --> src/scalc.rs:178:27
[INFO] [stdout]     |
[INFO] [stdout] 178 |     fn parse_input(input: &str) -> Pair {
[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] 178 |     fn parse_input(input: &str) -> Pair<'_> {
[INFO] [stdout]     |                                        ++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `scheme-rust` (lib test) due to 16 previous errors; 3 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645", kill_on_drop: false }`
[INFO] [stdout] 913a85dd458cca2ca02b5556fb023f1dbe7d3ba2ba56b8485b8622041a2c6645
