[INFO] cloning repository https://github.com/imbaczek/toylisp
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imbaczek/toylisp" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimbaczek%2Ftoylisp", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimbaczek%2Ftoylisp'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8dc211c799b6d13d23abba4dce0862a39f1e5eaf
[INFO] checking imbaczek/toylisp against master#506512391b1a75ae450d36c9420978402a91abcc for pr-125384
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimbaczek%2Ftoylisp" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/imbaczek/toylisp on toolchain 506512391b1a75ae450d36c9420978402a91abcc
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/imbaczek/toylisp
[INFO] finished tweaking git repo https://github.com/imbaczek/toylisp
[INFO] tweaked toml for git repo https://github.com/imbaczek/toylisp written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/imbaczek/toylisp 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" "+506512391b1a75ae450d36c9420978402a91abcc" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: path `src/toylisp.rs` was erroneously implicitly accepted for binary `toylisp`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f7021430c8973b819bca9911ec5fb141f5b064757f9519f6fae5d036a490ddaa
[INFO] running `Command { std: "docker" "start" "-a" "f7021430c8973b819bca9911ec5fb141f5b064757f9519f6fae5d036a490ddaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f7021430c8973b819bca9911ec5fb141f5b064757f9519f6fae5d036a490ddaa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f7021430c8973b819bca9911ec5fb141f5b064757f9519f6fae5d036a490ddaa", kill_on_drop: false }`
[INFO] [stdout] f7021430c8973b819bca9911ec5fb141f5b064757f9519f6fae5d036a490ddaa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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=allow" "-e" "RUSTDOCFLAGS=--cap-lints=allow" "-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:beeedbb442662e57d416641ecc3200b38e573c25b057896194468d05594dd835" "/opt/rustwide/cargo-home/bin/cargo" "+506512391b1a75ae450d36c9420978402a91abcc" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] a2a32a15931b42ed4bce276dbc7154f6355387f0afb98c8d89fc92e015ba9e38
[INFO] running `Command { std: "docker" "start" "-a" "a2a32a15931b42ed4bce276dbc7154f6355387f0afb98c8d89fc92e015ba9e38", kill_on_drop: false }`
[INFO] [stderr] warning: path `src/toylisp.rs` was erroneously implicitly accepted for binary `toylisp`,
[INFO] [stderr] please set bin.path in Cargo.toml
[INFO] [stderr]     Checking toylisp v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/toylisp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io;
[INFO] [stdout]   |     ^^^^^^^^^^^ no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::old_io`
[INFO] [stdout]  --> src/toylisp.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::old_io;
[INFO] [stdout]   |     ^^^^^^^^^^^ no `old_io` in the root
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::iter::RandomAccessIterator`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter::RandomAccessIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `RandomAccessIterator` in `iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0432]: unresolved import `std::iter::RandomAccessIterator`
[INFO] [stdout]  --> src/parser.rs:4:5
[INFO] [stdout]   |
[INFO] [stdout] 4 | use std::iter::RandomAccessIterator;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ no `RandomAccessIterator` in `iter`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lexer.rs:111:15
[INFO] [stdout]     |
[INFO] [stdout] 111 |         Err(String::from_str("scan_string not implemented"))
[INFO] [stdout]     |                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 111 |         Err(String::from("scan_string not implemented"))
[INFO] [stdout]     |                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lexer.rs:111:15
[INFO] [stdout]     |
[INFO] [stdout] 111 |         Err(String::from_str("scan_string not implemented"))
[INFO] [stdout]     |                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 111 |         Err(String::from("scan_string not implemented"))
[INFO] [stdout]     |                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lexer.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Err(String::from_str("scan_escape not implemented"))
[INFO] [stdout]     |                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Err(String::from("scan_escape not implemented"))
[INFO] [stdout]     |                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/lexer.rs:115:15
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Err(String::from_str("scan_escape not implemented"))
[INFO] [stdout]     |                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 115 |         Err(String::from("scan_escape not implemented"))
[INFO] [stdout]     |                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `idx` found for mutable reference `&mut std::slice::Iter<'_, Token>` in the current scope
[INFO] [stdout]   --> src/parser.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let tok = it.idx(idx);
[INFO] [stdout]    |                  ^^^ method not found in `&mut Iter<'_, Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `idx` found for mutable reference `&mut std::slice::Iter<'_, Token>` in the current scope
[INFO] [stdout]   --> src/parser.rs:40:15
[INFO] [stdout]    |
[INFO] [stdout] 40 |     let tok = it.idx(idx);
[INFO] [stdout]    |                  ^^^ method not found in `&mut Iter<'_, Token>`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/parser.rs:54:46
[INFO] [stdout]    |
[INFO] [stdout] 54 |         Token::Number(n) => Ok(try!(parse_number(n.as_slice()))),
[INFO] [stdout]    |                                                    ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for struct `String` in the current scope
[INFO] [stdout]   --> src/parser.rs:54:46
[INFO] [stdout]    |
[INFO] [stdout] 54 |         Token::Number(n) => Ok(try!(parse_number(n.as_slice()))),
[INFO] [stdout]    |                                                    ^^^^^^^^ method not found in `String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&str` in the current scope
[INFO] [stdout]   --> src/eval.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |         match self.vars.get(key.as_slice()) {
[INFO] [stdout]    |                                 ^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&str` in the current scope
[INFO] [stdout]   --> src/eval.rs:79:27
[INFO] [stdout]    |
[INFO] [stdout] 79 |         match self.vars.get(key.as_slice()) {
[INFO] [stdout]    |                                 ^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:101:31
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from_str("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:101:31
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from_str("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:101:93
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from_str("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+")))));
[INFO] [stdout]     |                                                                                                   ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from_str("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from("+")))));
[INFO] [stdout]     |                                                                                                   ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:101:93
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from_str("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+")))));
[INFO] [stdout]     |                                                                                                   ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 101 |         globals.vars.insert(String::from_str("+"), Arc::new(Mutex::new(Value::BuiltinFunc(String::from("+")))));
[INFO] [stdout]     |                                                                                                   ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from_str("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+.")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+.")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:102:31
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from_str("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+.")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+.")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:102:94
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from_str("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+.")))));
[INFO] [stdout]     |                                                                                                    ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from_str("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from("+.")))));
[INFO] [stdout]     |                                                                                                    ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:102:94
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from_str("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from_str("+.")))));
[INFO] [stdout]     |                                                                                                    ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 102 |         globals.vars.insert(String::from_str("+."), Arc::new(Mutex::new(Value::BuiltinFunc(String::from("+.")))));
[INFO] [stdout]     |                                                                                                    ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from_str("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("defun")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("defun")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:103:31
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from_str("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("defun")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("defun")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:103:97
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from_str("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("defun")))));
[INFO] [stdout]     |                                                                                                       ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from_str("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from("defun")))));
[INFO] [stdout]     |                                                                                                       ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:103:97
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from_str("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("defun")))));
[INFO] [stdout]     |                                                                                                       ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 103 |         globals.vars.insert(String::from_str("defun"), Arc::new(Mutex::new(Value::SpecialForm(String::from("defun")))));
[INFO] [stdout]     |                                                                                                       ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:104:31
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from_str("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("let")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("let")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:104:31
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from_str("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("let")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("let")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:104:95
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from_str("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("let")))));
[INFO] [stdout]     |                                                                                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from_str("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from("let")))));
[INFO] [stdout]     |                                                                                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:104:95
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from_str("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("let")))));
[INFO] [stdout]     |                                                                                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 104 |         globals.vars.insert(String::from_str("let"), Arc::new(Mutex::new(Value::SpecialForm(String::from("let")))));
[INFO] [stdout]     |                                                                                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:105:31
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from_str("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("def")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("def")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:105:31
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from_str("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("def")))));
[INFO] [stdout]     |                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("def")))));
[INFO] [stdout]     |                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:105:95
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from_str("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("def")))));
[INFO] [stdout]     |                                                                                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from_str("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from("def")))));
[INFO] [stdout]     |                                                                                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no function or associated item named `from_str` found for struct `String` in the current scope
[INFO] [stdout]    --> src/eval.rs:105:95
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from_str("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from_str("def")))));
[INFO] [stdout]     |                                                                                                     ^^^^^^^^ function or associated item not found in `String`
[INFO] [stdout]     |
[INFO] [stdout] note: if you're trying to build a new `String` consider using one of the following associated functions:
[INFO] [stdout]       String::new
[INFO] [stdout]       String::with_capacity
[INFO] [stdout]       String::try_with_capacity
[INFO] [stdout]       String::from_utf8
[INFO] [stdout]       and 8 others
[INFO] [stdout]    --> /rustc/506512391b1a75ae450d36c9420978402a91abcc/library/alloc/src/string.rs:448:5
[INFO] [stdout]     = help: items from traits can only be used if the trait is in scope
[INFO] [stdout] help: trait `FromStr` which provides `from_str` is implemented but not in scope; perhaps you want to import it
[INFO] [stdout]     |
[INFO] [stdout] 1   + use std::str::FromStr;
[INFO] [stdout]     |
[INFO] [stdout] help: there is an associated function `from` with a similar name
[INFO] [stdout]     |
[INFO] [stdout] 105 |         globals.vars.insert(String::from_str("def"), Arc::new(Mutex::new(Value::SpecialForm(String::from("def")))));
[INFO] [stdout]     |                                                                                                     ~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:118:62
[INFO] [stdout]     |
[INFO] [stdout] 118 |             &Node::Symbol(ref s) => match scope.lock().unwrap().get(s.as_slice()) {
[INFO] [stdout]     |                                                                       ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:118:62
[INFO] [stdout]     |
[INFO] [stdout] 118 |             &Node::Symbol(ref s) => match scope.lock().unwrap().get(s.as_slice()) {
[INFO] [stdout]     |                                                                       ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:134:51
[INFO] [stdout]     |
[INFO] [stdout] 134 |             if let Some(v) = scope.lock().unwrap().get(sym.as_slice()) {
[INFO] [stdout]     |                                                            ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:134:51
[INFO] [stdout]     |
[INFO] [stdout] 134 |             if let Some(v) = scope.lock().unwrap().get(sym.as_slice()) {
[INFO] [stdout]     |                                                            ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     return self.eval_special(ast, name.as_slice(), scope, argv)
[INFO] [stdout]     |                                                        ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:136:41
[INFO] [stdout]     |
[INFO] [stdout] 136 |                     return self.eval_special(ast, name.as_slice(), scope, argv)
[INFO] [stdout]     |                                                        ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:163:67
[INFO] [stdout]     |
[INFO] [stdout] 163 |             &Value::BuiltinFunc(ref name) => self.call_builtin(scope, name.as_slice(), args),
[INFO] [stdout]     |                                                                            ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&String` in the current scope
[INFO] [stdout]    --> src/eval.rs:163:67
[INFO] [stdout]     |
[INFO] [stdout] 163 |             &Value::BuiltinFunc(ref name) => self.call_builtin(scope, name.as_slice(), args),
[INFO] [stdout]     |                                                                            ^^^^^^^^ method not found in `&String`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&str` in the current scope
[INFO] [stdout]  --> src/toylisp.rs:8:38
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut lexer = lexer::Lexer::new(s.as_slice());
[INFO] [stdout]   |                                         ^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `as_slice` found for reference `&str` in the current scope
[INFO] [stdout]  --> src/toylisp.rs:8:38
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let mut lexer = lexer::Lexer::new(s.as_slice());
[INFO] [stdout]   |                                         ^^^^^^^^ method not found in `&str`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap_int` found for enum `Result` in the current scope
[INFO] [stdout]   --> src/toylisp.rs:33:55
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let r1 = rep(&mut interp, "(+ 1 2)").unwrap().lock().unwrap_int();
[INFO] [stdout]    |                                                          ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the method `unwrap_int` exists on the type `MutexGuard<'_, Value>`
[INFO] [stdout]   --> src/eval.rs:47:2
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn unwrap_int(&self) -> i64 {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `MutexGuard<'_, Value>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let r1 = rep(&mut interp, "(+ 1 2)").unwrap().lock().expect("REASON").unwrap_int();
[INFO] [stdout]    |                                                         +++++++++++++++++
[INFO] [stdout] help: there is a method `unwrap` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 33 |     let r1 = rep(&mut interp, "(+ 1 2)").unwrap().lock().unwrap();
[INFO] [stdout]    |                                                          ~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0599]: no method named `unwrap_int` found for enum `Result` in the current scope
[INFO] [stdout]   --> src/toylisp.rs:39:83
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let r3 = rep(&mut interp, "(def a (+ (def x 1) (def y 2) x y))").unwrap().lock().unwrap_int();
[INFO] [stdout]    |                                                                                      ^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] note: the method `unwrap_int` exists on the type `MutexGuard<'_, Value>`
[INFO] [stdout]   --> src/eval.rs:47:2
[INFO] [stdout]    |
[INFO] [stdout] 47 |     pub fn unwrap_int(&self) -> i64 {
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] help: consider using `Result::expect` to unwrap the `MutexGuard<'_, Value>` value, panicking if the value is a `Result::Err`
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let r3 = rep(&mut interp, "(def a (+ (def x 1) (def y 2) x y))").unwrap().lock().expect("REASON").unwrap_int();
[INFO] [stdout]    |                                                                                     +++++++++++++++++
[INFO] [stdout] help: there is a method `unwrap` with a similar name
[INFO] [stdout]    |
[INFO] [stdout] 39 |     let r3 = rep(&mut interp, "(def a (+ (def x 1) (def y 2) x y))").unwrap().lock().unwrap();
[INFO] [stdout]    |                                                                                      ~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 22 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toylisp` (bin "toylisp") due to 23 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] error: aborting due to 24 previous errors
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] Some errors have detailed explanations: E0432, E0599.
[INFO] [stdout] 
[INFO] [stdout] For more information about an error, try `rustc --explain E0432`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `toylisp` (bin "toylisp" test) due to 25 previous errors
[INFO] running `Command { std: "docker" "inspect" "a2a32a15931b42ed4bce276dbc7154f6355387f0afb98c8d89fc92e015ba9e38", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a2a32a15931b42ed4bce276dbc7154f6355387f0afb98c8d89fc92e015ba9e38", kill_on_drop: false }`
[INFO] [stdout] a2a32a15931b42ed4bce276dbc7154f6355387f0afb98c8d89fc92e015ba9e38