[INFO] updating cached repository https://github.com/novoru/simia
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] df2ac25c4b33f70f6c0e99003fe583f7e5654fb4
[INFO] testing novoru/simia against 1.44.0 for beta-1.45-1
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fnovoru%2Fsimia" "/workspace/builds/worker-5/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/novoru/simia on toolchain 1.44.0
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/novoru/simia
[INFO] finished tweaking git repo https://github.com/novoru/simia
[INFO] tweaked toml for git repo https://github.com/novoru/simia written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate git repo https://github.com/novoru/simia already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+1.44.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "build" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 78cd079da6c39845a83462ddc98da9b2b9ba5b047db69f4957da709d05d2ba6d
[INFO] running `"docker" "start" "-a" "78cd079da6c39845a83462ddc98da9b2b9ba5b047db69f4957da709d05d2ba6d"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling simia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:67:17
[INFO] [stderr]    |
[INFO] [stderr] 67 |             '0' ... '9' => return Token {kind: TokenKind::Integer, literal: self.read_integer()},
[INFO] [stderr]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/repl.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast:: { Ast };
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/repl.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Lexier`
[INFO] [stderr]  --> src/eval.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::lexier::{ Lexier };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Parser`
[INFO] [stderr]  --> src/eval.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::parser::{ Parser };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/eval.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/builtins.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::{ Ast };
[INFO] [stderr]   |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:461:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 --- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 461 |                 _ => return None,
[INFO] [stderr]     |                 ^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/lexier.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let position = self.position + 1;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `left_exp` is never read
[INFO] [stderr]    --> src/parser.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut left_exp = Ast::Expression {
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Ast`
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_Ast`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 let mut string = String::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:67:50
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Object::Array { elements }   => {let mut string = String::new();
[INFO] [stderr]    |                                                  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/eval.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |         Ast::ArrayLiteral { elements, token } => {
[INFO] [stderr]     |                                       ^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `function`
[INFO] [stderr]    --> src/eval.rs:419:30
[INFO] [stderr]     |
[INFO] [stderr] 419 |     if let Object::Builtin { function } = builtins(value.clone()) {
[INFO] [stderr]     |                              ^^^^^^^^ help: try ignoring the field: `function: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let mut value = match self.parse_expression(Precedence::Lowest) {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:450:17
[INFO] [stderr]     |
[INFO] [stderr] 450 |             let mut statement = match self.parse_statement() {
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_call_arguments`
[INFO] [stderr]    --> src/parser.rs:555:5
[INFO] [stderr]     |
[INFO] [stderr] 555 |     fn parse_call_arguments(&mut self) -> Vec<Box<Ast>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_error`
[INFO] [stderr]    --> src/parser.rs:679:5
[INFO] [stderr]     |
[INFO] [stderr] 679 |     fn parse_error(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_statements`
[INFO] [stderr]    --> src/eval.rs:146:4
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn eval_statements(statements: Vec<Box<Ast>>, env: &mut Env) -> Option<Object> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Ast` should have a snake case name
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/eval.rs:463:8
[INFO] [stderr]     |
[INFO] [stderr] 463 |     if idx < 0 || idx > max {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.37s
[INFO] running `"docker" "inspect" "78cd079da6c39845a83462ddc98da9b2b9ba5b047db69f4957da709d05d2ba6d"`
[INFO] running `"docker" "rm" "-f" "78cd079da6c39845a83462ddc98da9b2b9ba5b047db69f4957da709d05d2ba6d"`
[INFO] [stdout] 78cd079da6c39845a83462ddc98da9b2b9ba5b047db69f4957da709d05d2ba6d
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen" "--no-run"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c329f17abc20716e53d6b99d884544ed55ecce282fcb4977cf09aaccf178d379
[INFO] running `"docker" "start" "-a" "c329f17abc20716e53d6b99d884544ed55ecce282fcb4977cf09aaccf178d379"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling simia v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:67:17
[INFO] [stderr]    |
[INFO] [stderr] 67 |             '0' ... '9' => return Token {kind: TokenKind::Integer, literal: self.read_integer()},
[INFO] [stderr]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/repl.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast:: { Ast };
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/repl.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Lexier`
[INFO] [stderr]  --> src/eval.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::lexier::{ Lexier };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Parser`
[INFO] [stderr]  --> src/eval.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::parser::{ Parser };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/eval.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/builtins.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::{ Ast };
[INFO] [stderr]   |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:461:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 --- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 461 |                 _ => return None,
[INFO] [stderr]     |                 ^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/lexier.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let position = self.position + 1;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `left_exp` is never read
[INFO] [stderr]    --> src/parser.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut left_exp = Ast::Expression {
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Ast`
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_Ast`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 let mut string = String::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:67:50
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Object::Array { elements }   => {let mut string = String::new();
[INFO] [stderr]    |                                                  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/eval.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |         Ast::ArrayLiteral { elements, token } => {
[INFO] [stderr]     |                                       ^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `function`
[INFO] [stderr]    --> src/eval.rs:419:30
[INFO] [stderr]     |
[INFO] [stderr] 419 |     if let Object::Builtin { function } = builtins(value.clone()) {
[INFO] [stderr]     |                              ^^^^^^^^ help: try ignoring the field: `function: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let mut value = match self.parse_expression(Precedence::Lowest) {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:450:17
[INFO] [stderr]     |
[INFO] [stderr] 450 |             let mut statement = match self.parse_statement() {
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_call_arguments`
[INFO] [stderr]    --> src/parser.rs:555:5
[INFO] [stderr]     |
[INFO] [stderr] 555 |     fn parse_call_arguments(&mut self) -> Vec<Box<Ast>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_error`
[INFO] [stderr]    --> src/parser.rs:679:5
[INFO] [stderr]     |
[INFO] [stderr] 679 |     fn parse_error(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_statements`
[INFO] [stderr]    --> src/eval.rs:146:4
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn eval_statements(statements: Vec<Box<Ast>>, env: &mut Env) -> Option<Object> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Ast` should have a snake case name
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/eval.rs:463:8
[INFO] [stderr]     |
[INFO] [stderr] 463 |     if idx < 0 || idx > max {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:67:17
[INFO] [stderr]    |
[INFO] [stderr] 67 |             '0' ... '9' => return Token {kind: TokenKind::Integer, literal: self.read_integer()},
[INFO] [stderr]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/repl.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast:: { Ast };
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/repl.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TokenKind`, `Token`
[INFO] [stderr]    --> src/parser.rs:901:26
[INFO] [stderr]     |
[INFO] [stderr] 901 |     use crate::token:: { TokenKind, Token};
[INFO] [stderr]     |                          ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Lexier`
[INFO] [stderr]  --> src/eval.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::lexier::{ Lexier };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Parser`
[INFO] [stderr]  --> src/eval.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::parser::{ Parser };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/eval.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/builtins.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::{ Ast };
[INFO] [stderr]   |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> tests/eval_test.rs:379:38
[INFO] [stderr]     |
[INFO] [stderr] 379 |                     Object::String { value } => (),
[INFO] [stderr]     |                                      ^^^^^ help: try ignoring the field: `value: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:461:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 --- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 461 |                 _ => return None,
[INFO] [stderr]     |                 ^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:994:13
[INFO] [stderr]     |
[INFO] [stderr] 994 |             _ => {
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/lexier.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let position = self.position + 1;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `left_exp` is never read
[INFO] [stderr]    --> src/parser.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut left_exp = Ast::Expression {
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Ast`
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_Ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]     --> src/parser.rs:1089:42
[INFO] [stderr]      |
[INFO] [stderr] 1089 |                     Ast::IfExpression  { ref token, ref condition, ref consequence, ref alternative } => {
[INFO] [stderr]      |                                          ^^^^^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alternative`
[INFO] [stderr]     --> src/parser.rs:1089:85
[INFO] [stderr]      |
[INFO] [stderr] 1089 |                     Ast::IfExpression  { ref token, ref condition, ref consequence, ref alternative } => {
[INFO] [stderr]      |                                                                                     ^^^^^^^^^^^^^^^ help: try ignoring the field: `alternative: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]     --> src/parser.rs:1129:42
[INFO] [stderr]      |
[INFO] [stderr] 1129 |                     Ast::IfExpression  { ref token, ref condition, ref consequence, ref alternative } => {
[INFO] [stderr]      |                                          ^^^^^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 let mut string = String::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:67:50
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Object::Array { elements }   => {let mut string = String::new();
[INFO] [stderr]    |                                                  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/eval.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |         Ast::ArrayLiteral { elements, token } => {
[INFO] [stderr]     |                                       ^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `function`
[INFO] [stderr]    --> src/eval.rs:419:30
[INFO] [stderr]     |
[INFO] [stderr] 419 |     if let Object::Builtin { function } = builtins(value.clone()) {
[INFO] [stderr]     |                              ^^^^^^^^ help: try ignoring the field: `function: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let mut value = match self.parse_expression(Precedence::Lowest) {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:450:17
[INFO] [stderr]     |
[INFO] [stderr] 450 |             let mut statement = match self.parse_statement() {
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_call_arguments`
[INFO] [stderr]    --> src/parser.rs:555:5
[INFO] [stderr]     |
[INFO] [stderr] 555 |     fn parse_call_arguments(&mut self) -> Vec<Box<Ast>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_error`
[INFO] [stderr]    --> src/parser.rs:679:5
[INFO] [stderr]     |
[INFO] [stderr] 679 |     fn parse_error(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_statements`
[INFO] [stderr]    --> src/eval.rs:146:4
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn eval_statements(statements: Vec<Box<Ast>>, env: &mut Env) -> Option<Object> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Ast` should have a snake case name
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/eval.rs:463:8
[INFO] [stderr]     |
[INFO] [stderr] 463 |     if idx < 0 || idx > max {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 2.82s
[INFO] running `"docker" "inspect" "c329f17abc20716e53d6b99d884544ed55ecce282fcb4977cf09aaccf178d379"`
[INFO] running `"docker" "rm" "-f" "c329f17abc20716e53d6b99d884544ed55ecce282fcb4977cf09aaccf178d379"`
[INFO] [stdout] c329f17abc20716e53d6b99d884544ed55ecce282fcb4977cf09aaccf178d379
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "MAP_USER_ID=0" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+1.44.0" "test" "--frozen"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] 5b395b8f3ba1f8ba38f81c28be59843fc8e57d69f9f275ab88a173046a743db0
[INFO] running `"docker" "start" "-a" "5b395b8f3ba1f8ba38f81c28be59843fc8e57d69f9f275ab88a173046a743db0"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:67:17
[INFO] [stderr]    |
[INFO] [stderr] 67 |             '0' ... '9' => return Token {kind: TokenKind::Integer, literal: self.read_integer()},
[INFO] [stderr]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/repl.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast:: { Ast };
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:16
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                ^^^ help: use `..=` for an inclusive range
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/repl.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Lexier`
[INFO] [stderr]  --> src/eval.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::lexier::{ Lexier };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:63:29
[INFO] [stderr]    |
[INFO] [stderr] 63 |             'a'...'z' | 'A' ... 'Z' | '_' => {
[INFO] [stderr]    |                             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Parser`
[INFO] [stderr]  --> src/eval.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::parser::{ Parser };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/eval.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]   --> src/lexier.rs:67:17
[INFO] [stderr]    |
[INFO] [stderr] 67 |             '0' ... '9' => return Token {kind: TokenKind::Integer, literal: self.read_integer()},
[INFO] [stderr]    |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/builtins.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::{ Ast };
[INFO] [stderr]   |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/repl.rs:1:20
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast:: { Ast };
[INFO] [stderr]   |                    ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/repl.rs:5:21
[INFO] [stderr]   |
[INFO] [stderr] 5 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:461:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 --- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 461 |                 _ => return None,
[INFO] [stderr]     |                 ^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused imports: `TokenKind`, `Token`
[INFO] [stderr]    --> src/parser.rs:901:26
[INFO] [stderr]     |
[INFO] [stderr] 901 |     use crate::token:: { TokenKind, Token};
[INFO] [stderr]     |                          ^^^^^^^^^  ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/lexier.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let position = self.position + 1;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Lexier`
[INFO] [stderr]  --> src/eval.rs:4:22
[INFO] [stderr]   |
[INFO] [stderr] 4 | use crate::lexier::{ Lexier };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Parser`
[INFO] [stderr]  --> src/eval.rs:6:22
[INFO] [stderr]   |
[INFO] [stderr] 6 | use crate::parser::{ Parser };
[INFO] [stderr]   |                      ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `left_exp` is never read
[INFO] [stderr]    --> src/parser.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut left_exp = Ast::Expression {
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `TokenKind`
[INFO] [stderr]  --> src/eval.rs:7:21
[INFO] [stderr]   |
[INFO] [stderr] 7 | use crate::token::{ TokenKind };
[INFO] [stderr]   |                     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Ast`
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_Ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `Ast`
[INFO] [stderr]  --> src/builtins.rs:1:19
[INFO] [stderr]   |
[INFO] [stderr] 1 | use crate::ast::{ Ast };
[INFO] [stderr]   |                   ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 let mut string = String::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:461:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 --- matches any value
[INFO] [stderr] ...
[INFO] [stderr] 461 |                 _ => return None,
[INFO] [stderr]     |                 ^ unreachable pattern
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:67:50
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Object::Array { elements }   => {let mut string = String::new();
[INFO] [stderr]    |                                                  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser.rs:994:13
[INFO] [stderr]     |
[INFO] [stderr] 994 |             _ => {
[INFO] [stderr]     |             ^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/eval.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |         Ast::ArrayLiteral { elements, token } => {
[INFO] [stderr]     |                                       ^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `position`
[INFO] [stderr]    --> src/lexier.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         let position = self.position + 1;
[INFO] [stderr]     |             ^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_position`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `function`
[INFO] [stderr]    --> src/eval.rs:419:30
[INFO] [stderr]     |
[INFO] [stderr] 419 |     if let Object::Builtin { function } = builtins(value.clone()) {
[INFO] [stderr]     |                              ^^^^^^^^ help: try ignoring the field: `function: _`
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `left_exp` is never read
[INFO] [stderr]    --> src/parser.rs:184:13
[INFO] [stderr]     |
[INFO] [stderr] 184 |         let mut left_exp = Ast::Expression {
[INFO] [stderr]     |             ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_assignments)]` on by default
[INFO] [stderr]     = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let mut value = match self.parse_expression(Precedence::Lowest) {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `Ast`
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: if this is intentional, prefix it with an underscore: `_Ast`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]     --> src/parser.rs:1089:42
[INFO] [stderr]      |
[INFO] [stderr] 1089 |                     Ast::IfExpression  { ref token, ref condition, ref consequence, ref alternative } => {
[INFO] [stderr]      |                                          ^^^^^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:450:17
[INFO] [stderr]     |
[INFO] [stderr] 450 |             let mut statement = match self.parse_statement() {
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `alternative`
[INFO] [stderr]     --> src/parser.rs:1089:85
[INFO] [stderr]      |
[INFO] [stderr] 1089 |                     Ast::IfExpression  { ref token, ref condition, ref consequence, ref alternative } => {
[INFO] [stderr]      |                                                                                     ^^^^^^^^^^^^^^^ help: try ignoring the field: `alternative: _`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_call_arguments`
[INFO] [stderr]    --> src/parser.rs:555:5
[INFO] [stderr]     |
[INFO] [stderr] 555 |     fn parse_call_arguments(&mut self) -> Vec<Box<Ast>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_error`
[INFO] [stderr]    --> src/parser.rs:679:5
[INFO] [stderr]     |
[INFO] [stderr] 679 |     fn parse_error(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]     --> src/parser.rs:1129:42
[INFO] [stderr]      |
[INFO] [stderr] 1129 |                     Ast::IfExpression  { ref token, ref condition, ref consequence, ref alternative } => {
[INFO] [stderr]      |                                          ^^^^^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_statements`
[INFO] [stderr]    --> src/eval.rs:146:4
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn eval_statements(statements: Vec<Box<Ast>>, env: &mut Env) -> Option<Object> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:53:21
[INFO] [stderr]    |
[INFO] [stderr] 53 |                 let mut string = String::new();
[INFO] [stderr]    |                     ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Ast` should have a snake case name
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: value assigned to `string` is never read
[INFO] [stderr]   --> src/object.rs:67:50
[INFO] [stderr]    |
[INFO] [stderr] 67 |             Object::Array { elements }   => {let mut string = String::new();
[INFO] [stderr]    |                                                  ^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = help: maybe it is overwritten before being read?
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/eval.rs:463:8
[INFO] [stderr]     |
[INFO] [stderr] 463 |     if idx < 0 || idx > max {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 24 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `token`
[INFO] [stderr]    --> src/eval.rs:113:39
[INFO] [stderr]     |
[INFO] [stderr] 113 |         Ast::ArrayLiteral { elements, token } => {
[INFO] [stderr]     |                                       ^^^^^ help: try ignoring the field: `token: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `function`
[INFO] [stderr]    --> src/eval.rs:419:30
[INFO] [stderr]     |
[INFO] [stderr] 419 |     if let Object::Builtin { function } = builtins(value.clone()) {
[INFO] [stderr]     |                              ^^^^^^^^ help: try ignoring the field: `function: _`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:128:13
[INFO] [stderr]     |
[INFO] [stderr] 128 |         let mut value = match self.parse_expression(Precedence::Lowest) {
[INFO] [stderr]     |             ----^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/parser.rs:450:17
[INFO] [stderr]     |
[INFO] [stderr] 450 |             let mut statement = match self.parse_statement() {
[INFO] [stderr]     |                 ----^^^^^^^^^
[INFO] [stderr]     |                 |
[INFO] [stderr]     |                 help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_call_arguments`
[INFO] [stderr]    --> src/parser.rs:555:5
[INFO] [stderr]     |
[INFO] [stderr] 555 |     fn parse_call_arguments(&mut self) -> Vec<Box<Ast>> {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: method is never used: `parse_error`
[INFO] [stderr]    --> src/parser.rs:679:5
[INFO] [stderr]     |
[INFO] [stderr] 679 |     fn parse_error(&mut self) {
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `eval_statements`
[INFO] [stderr]    --> src/eval.rs:146:4
[INFO] [stderr]     |
[INFO] [stderr] 146 | fn eval_statements(statements: Vec<Box<Ast>>, env: &mut Env) -> Option<Object> {
[INFO] [stderr]     |    ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variable `Ast` should have a snake case name
[INFO] [stderr]    --> src/parser.rs:456:17
[INFO] [stderr]     |
[INFO] [stderr] 456 |                 Ast    => {
[INFO] [stderr]     |                 ^^^ help: convert the identifier to snake case: `ast`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(non_snake_case)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: comparison is useless due to type limits
[INFO] [stderr]    --> src/eval.rs:463:8
[INFO] [stderr]     |
[INFO] [stderr] 463 |     if idx < 0 || idx > max {
[INFO] [stderr]     |        ^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_comparisons)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 29 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `value`
[INFO] [stderr]    --> tests/eval_test.rs:379:38
[INFO] [stderr]     |
[INFO] [stderr] 379 |                     Object::String { value } => (),
[INFO] [stderr]     |                                      ^^^^^ help: try ignoring the field: `value: _`
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.03s
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simia-6e9af0644c0904c3
[INFO] [stdout] 
[INFO] [stdout] running 13 tests
[INFO] [stdout] test ast::test_ast_string ... ok
[INFO] [stdout] test parser::test_let_statements ... ok
[INFO] [stdout] test parser::test_prefix_expression ... ok
[INFO] [stdout] test parser::test_return_statement ... ok
[INFO] [stdout] test parser::tests::test_function_literal_parsing ... ok
[INFO] [stdout] test parser::tests::test_parsing_infix_expression ... ok
[INFO] [stdout] test parser::tests::test_string_literal_expression ... ok
[INFO] [stdout] test parser::test_operator_precedence_parsing ... ok
[INFO] [stdout] test parser::tests::test_if_else_expression ... ok
[INFO] [stdout] test lexier::test_next_token ... ok
[INFO] [stdout] test parser::test_integer_literal_expression ... ok
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/simia-5401de4e6873f44d
[INFO] [stdout] test parser::tests::test_if_expression ... ok
[INFO] [stdout] test parser::tests::test_parsin_array_literals ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 13 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stderr]      Running /opt/rustwide/target/debug/deps/eval_test-9220edabe4796048
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 16 tests
[INFO] [stdout] test test_bang_operator ... ok
[INFO] [stdout] test test_function_object ... ok
[INFO] [stdout] test test_if_expression ... ok
[INFO] [stdout] test test_array_index_expressions ... ok
[INFO] [stdout] test test_eval_boolean_expression ... ok
[INFO] [stdout] test test_let_statements ... ok
[INFO] [stdout] test test_array_literals ... ok
[INFO] [stdout] test test_null_expression ... ok
[INFO] [stdout] test test_closures ... ok
[INFO] [stdout] test test_return_statements ... ok
[INFO] [stdout] test test_string_concatenation ... ok
[INFO] [stdout] test test_error_handling ... ok
[INFO] [stdout] test test_builtin_functions ... ok
[INFO] [stdout] test test_string_literal ... ok
[INFO] [stderr]    Doc-tests simia
[INFO] [stdout] test test_function_application ... ok
[INFO] [stdout] test test_eval_integer_expression ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 16 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out
[INFO] [stdout] 
[INFO] running `"docker" "inspect" "5b395b8f3ba1f8ba38f81c28be59843fc8e57d69f9f275ab88a173046a743db0"`
[INFO] running `"docker" "rm" "-f" "5b395b8f3ba1f8ba38f81c28be59843fc8e57d69f9f275ab88a173046a743db0"`
[INFO] [stdout] 5b395b8f3ba1f8ba38f81c28be59843fc8e57d69f9f275ab88a173046a743db0