[INFO] cloning repository vluzko/Grace
[INFO] running `"git" "clone" "--bare" "git://github.com/vluzko/Grace.git" "work/cache/sources/gh/vluzko/Grace"`
[INFO] [stderr] Cloning into bare repository 'work/cache/sources/gh/vluzko/Grace'...
[INFO] running `"git" "clone" "work/cache/sources/gh/vluzko/Grace" "work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vluzko/Grace"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vluzko/Grace'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/vluzko/Grace" "work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vluzko/Grace"`
[INFO] [stderr] Cloning into 'work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vluzko/Grace'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 77bd1b4067e17e55d275a5b6cc16443940ae753a
[INFO] sha for GitHub repo vluzko/Grace: 77bd1b4067e17e55d275a5b6cc16443940ae753a
[INFO] validating manifest of vluzko/Grace on toolchain master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of vluzko/Grace on toolchain try#8f81d0bf6baf07b92f1246696722485c4ca0b049
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing vluzko/Grace
[INFO] finished frobbing vluzko/Grace
[INFO] frobbed toml for vluzko/Grace written to work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vluzko/Grace/Cargo.toml
[INFO] started frobbing vluzko/Grace
[INFO] finished frobbing vluzko/Grace
[INFO] frobbed toml for vluzko/Grace written to work/ex/pr-62008/sources/try#8f81d0bf6baf07b92f1246696722485c4ca0b049/gh/vluzko/Grace/Cargo.toml
[INFO] crate vluzko/Grace already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cached v0.8.0
[INFO] running `"/mnt/big/ec2-user/crater/work/local/cargo-home/bin/cargo" "+8f81d0bf6baf07b92f1246696722485c4ca0b049-alt" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] checking vluzko/Grace against master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1 for pr-62008
[INFO] running `"docker" "create" "-v" "/mnt/big/ec2-user/crater/work/local/target-dirs/pr-62008/worker-6/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1:/opt/crater/target:rw,Z" "-v" "/mnt/big/ec2-user/crater/work/ex/pr-62008/sources/master#848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1/gh/vluzko/Grace:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/ec2-user/crater/work/local/rustup-home:/opt/crater/rustup-home:ro,Z" "-e" "USER_ID=1000" "-e" "SOURCE_DIR=/opt/crater/workdir" "-e" "MAP_USER_ID=1000" "-e" "CARGO_TARGET_DIR=/opt/crater/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/crater/cargo-home" "-e" "RUSTUP_HOME=/opt/crater/rustup-home" "-w" "/opt/crater/workdir" "-m" "1536M" "--network" "none" "rustops/crates-build-env" "/opt/crater/cargo-home/bin/cargo" "+848e0a23f34aaab3e4a974b031c86ef2a4e4fcc1-alt" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 304b875c6d669145b6b52baada5fcf13a6f6e18bd75b1a3723ca8d45a7e34bb7
[INFO] running `"docker" "start" "-a" "304b875c6d669145b6b52baada5fcf13a6f6e18bd75b1a3723ca8d45a7e34bb7"`
[INFO] [stderr]     Checking cute v0.3.0
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking rand v0.5.5
[INFO] [stderr]     Checking lock_api v0.1.5
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking parking_lot_core v0.3.1
[INFO] [stderr]     Checking parking_lot v0.6.4
[INFO] [stderr]     Checking once_cell v0.1.6
[INFO] [stderr]     Checking cached v0.8.0
[INFO] [stderr]     Checking grace v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/parser_utils.rs:125:1
[INFO] [stderr]     |
[INFO] [stderr] 125 | / macro_rules! ta(
[INFO] [stderr] 126 | |   ($i:expr, $tag: expr) => ({
[INFO] [stderr] 127 | |       match tag!($i, $tag) {
[INFO] [stderr] 128 | |             //   nom::ErrorKind(y) => panic!(),
[INFO] [stderr] ...   |
[INFO] [stderr] 135 | |   });
[INFO] [stderr] 136 | | );
[INFO] [stderr]     | |__^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeSet`
[INFO] [stderr]  --> src/general_utils.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::BTreeSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/general_utils.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if (a.contains_key(&k)) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]     --> src/parser.rs:1080:9
[INFO] [stderr]      |
[INFO] [stderr] 1080 |     use super::*;
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scoping::*`
[INFO] [stderr]  --> src/expression.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use scoping::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/bytecode.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compiler_layers`
[INFO] [stderr]   --> src/bytecode.rs:10:5
[INFO] [stderr]    |
[INFO] [stderr] 10 | use compiler_layers;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/scoping.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compiler_layers`
[INFO] [stderr]  --> src/scoping.rs:7:5
[INFO] [stderr]   |
[INFO] [stderr] 7 | use compiler_layers;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/scoping.rs:138:16
[INFO] [stderr]     |
[INFO] [stderr] 138 |             if (self.scopes.contains_key(&id)) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/typing.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/typing.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scoping::Scoped`
[INFO] [stderr]   --> src/typing.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use scoping::Scoped;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `compiler_layers`
[INFO] [stderr]   --> src/typing.rs:12:5
[INFO] [stderr]    |
[INFO] [stderr] 12 | use compiler_layers;
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/typing.rs:147:12
[INFO] [stderr]     |
[INFO] [stderr] 147 |         if (self == other) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in methods without bodies
[INFO] [stderr]    --> src/typing.rs:216:57
[INFO] [stderr]     |
[INFO] [stderr] 216 |     fn resolve_types(&self, context: &scoping::Context, mut type_map: HashMap<usize, Type>) -> (HashMap<usize, Type>, Type);
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(patterns_in_fns_without_body)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser`
[INFO] [stderr]  --> src/compiler_layers.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use parser;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bytecode`
[INFO] [stderr]   --> src/compiler_layers.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use bytecode;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `#[macro_use]` import
[INFO] [stderr]  --> src/lib.rs:7:1
[INFO] [stderr]   |
[INFO] [stderr] 7 | #[macro_use]
[INFO] [stderr]   | ^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: #[warn(unused_imports)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/parser_utils.rs:125:1
[INFO] [stderr]     |
[INFO] [stderr] 125 | / macro_rules! ta(
[INFO] [stderr] 126 | |   ($i:expr, $tag: expr) => ({
[INFO] [stderr] 127 | |       match tag!($i, $tag) {
[INFO] [stderr] 128 | |             //   nom::ErrorKind(y) => panic!(),
[INFO] [stderr] ...   |
[INFO] [stderr] 135 | |   });
[INFO] [stderr] 136 | | );
[INFO] [stderr]     | |__^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_macros)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::BTreeSet`
[INFO] [stderr]  --> src/general_utils.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::BTreeSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]   --> src/general_utils.rs:68:12
[INFO] [stderr]    |
[INFO] [stderr] 68 |         if (a.contains_key(&k)) {
[INFO] [stderr]    |            ^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr]    |
[INFO] [stderr]    = note: #[warn(unused_parens)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `super::*`
[INFO] [stderr]     --> src/parser.rs:1080:9
[INFO] [stderr]      |
[INFO] [stderr] 1080 |     use super::*;
[INFO] [stderr]      |         ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `scoping::*`
[INFO] [stderr]  --> src/expression.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 | use scoping::*;
[INFO] [stderr]   |     ^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/bytecode.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser`
[INFO] [stderr]    --> src/bytecode.rs:266:9
[INFO] [stderr]     |
[INFO] [stderr] 266 |     use parser;
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser_utils::*`
[INFO] [stderr]    --> src/bytecode.rs:267:9
[INFO] [stderr]     |
[INFO] [stderr] 267 |     use parser_utils::*;
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `typing::Typed`
[INFO] [stderr]    --> src/bytecode.rs:268:9
[INFO] [stderr]     |
[INFO] [stderr] 268 |     use typing::Typed;
[INFO] [stderr]     |         ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::hash::Hash`
[INFO] [stderr]  --> src/scoping.rs:4:5
[INFO] [stderr]   |
[INFO] [stderr] 4 | use std::hash::Hash;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/scoping.rs:138:16
[INFO] [stderr]     |
[INFO] [stderr] 138 |             if (self.scopes.contains_key(&id)) {
[INFO] [stderr]     |                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/typing.rs:1:5
[INFO] [stderr]   |
[INFO] [stderr] 1 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::iter::FromIterator`
[INFO] [stderr]  --> src/typing.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::iter::FromIterator;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary parentheses around `if` condition
[INFO] [stderr]    --> src/typing.rs:147:12
[INFO] [stderr]     |
[INFO] [stderr] 147 |         if (self == other) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^^^ help: remove these parentheses
[INFO] [stderr] 
[INFO] [stderr] warning: patterns aren't allowed in methods without bodies
[INFO] [stderr]    --> src/typing.rs:216:57
[INFO] [stderr]     |
[INFO] [stderr] 216 |     fn resolve_types(&self, context: &scoping::Context, mut type_map: HashMap<usize, Type>) -> (HashMap<usize, Type>, Type);
[INFO] [stderr]     |                                                         ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(patterns_in_fns_without_body)] on by default
[INFO] [stderr]     = warning: this was previously accepted by the compiler but is being phased out; it will become a hard error in a future release!
[INFO] [stderr]     = note: for more information, see issue #35203 <https://github.com/rust-lang/rust/issues/35203>
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `parser`
[INFO] [stderr]  --> src/compiler_layers.rs:5:5
[INFO] [stderr]   |
[INFO] [stderr] 5 | use parser;
[INFO] [stderr]   |     ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `bytecode`
[INFO] [stderr]   --> src/compiler_layers.rs:11:5
[INFO] [stderr]    |
[INFO] [stderr] 11 | use bytecode;
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `not_result`
[INFO] [stderr]    --> src/parser.rs:974:9
[INFO] [stderr]     |
[INFO] [stderr] 974 |     let not_result: IResult<&[u8], (&[u8], Vec<&[u8]>)> = pair!(input, 
[INFO] [stderr]     |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_not_result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg_types`
[INFO] [stderr]   --> src/bytecode.rs:56:22
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let (arg_types, ret) = match type_map.get(&self.id).unwrap() {
[INFO] [stderr]    |                      ^^^^^^^^^ help: consider prefixing with an underscore: `_arg_types`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/bytecode.rs:197:33
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                 ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_map`
[INFO] [stderr]    --> src/bytecode.rs:197:52
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: consider prefixing with an underscore: `_type_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/bytecode.rs:255:33
[INFO] [stderr]     |
[INFO] [stderr] 255 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                 ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_map`
[INFO] [stderr]    --> src/bytecode.rs:255:52
[INFO] [stderr]     |
[INFO] [stderr] 255 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: consider prefixing with an underscore: `_type_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:161:30
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn get_parent(&self, context: &Context) -> Option<&Scope> {
[INFO] [stderr]     |                              ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:176:37
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn get_true_declarations(&self, context: &Context) -> HashSet<Identifier> {
[INFO] [stderr]     |                                     ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/scoping.rs:195:14
[INFO] [stderr]     |
[INFO] [stderr] 195 |         for (i, stmt) in self.data.declarations.iter_mut().enumerate() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/scoping.rs:247:14
[INFO] [stderr]     |
[INFO] [stderr] 247 |         for (i, stmt) in self.data.statements.iter_mut().enumerate() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `typed_name`
[INFO] [stderr]    --> src/scoping.rs:300:27
[INFO] [stderr]     |
[INFO] [stderr] 300 |             Stmt::LetStmt{typed_name, expression} => {
[INFO] [stderr]     |                           ^^^^^^^^^^ help: try ignoring the field: `typed_name: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/scoping.rs:304:34
[INFO] [stderr]     |
[INFO] [stderr] 304 |             Stmt::AssignmentStmt{name, expression, ..} => {
[INFO] [stderr]     |                                  ^^^^ help: try ignoring the field: `name: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kwargs`
[INFO] [stderr]    --> src/scoping.rs:308:55
[INFO] [stderr]     |
[INFO] [stderr] 308 |             Stmt::FunctionDecStmt{name, args, vararg, kwargs, varkwarg, ref mut block, return_type} => {
[INFO] [stderr]     |                                                       ^^^^^^ help: try ignoring the field: `kwargs: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/scoping.rs:308:35
[INFO] [stderr]     |
[INFO] [stderr] 308 |             Stmt::FunctionDecStmt{name, args, vararg, kwargs, varkwarg, ref mut block, return_type} => {
[INFO] [stderr]     |                                   ^^^^ help: try ignoring the field: `name: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `return_type`
[INFO] [stderr]    --> src/scoping.rs:308:88
[INFO] [stderr]     |
[INFO] [stderr] 308 |             Stmt::FunctionDecStmt{name, args, vararg, kwargs, varkwarg, ref mut block, return_type} => {
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^ help: try ignoring the field: `return_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:419:37
[INFO] [stderr]     |
[INFO] [stderr] 419 |     fn get_true_declarations(&self, context: &Context) -> HashSet<Identifier> {
[INFO] [stderr]     |                                     ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operator`
[INFO] [stderr]    --> src/scoping.rs:429:38
[INFO] [stderr]     |
[INFO] [stderr] 429 |             Expr::BinaryExpr{ref mut operator, ref mut left, ref mut right} => {
[INFO] [stderr]     |                              --------^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `operator: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/scoping.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 Stmt::ReturnStmt(name) => {
[INFO] [stderr]     |                                  ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> src/typing.rs:250:60
[INFO] [stderr]     |
[INFO] [stderr] 250 |             scoping::CanModifyScope::Argument(ref ptr, ref index) => {
[INFO] [stderr]     |                                                            ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]    --> src/typing.rs:250:51
[INFO] [stderr]     |
[INFO] [stderr] 250 |             scoping::CanModifyScope::Argument(ref ptr, ref index) => {
[INFO] [stderr]     |                                                   ^^^ help: consider prefixing with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/typing.rs:382:35
[INFO] [stderr]     |
[INFO] [stderr] 382 |                 let (mut new_map, t) = block.resolve_types(context, type_map);
[INFO] [stderr]     |                                   ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/compiler_layers.rs:35:14
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn parse(input: &[u8]) -> expression::Node<expression::Module>{
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `not_result`
[INFO] [stderr]    --> src/parser.rs:974:9
[INFO] [stderr]     |
[INFO] [stderr] 974 |     let not_result: IResult<&[u8], (&[u8], Vec<&[u8]>)> = pair!(input, 
[INFO] [stderr]     |         ^^^^^^^^^^ help: consider prefixing with an underscore: `_not_result`
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(unused_variables)] on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `arg_types`
[INFO] [stderr]   --> src/bytecode.rs:56:22
[INFO] [stderr]    |
[INFO] [stderr] 56 |                 let (arg_types, ret) = match type_map.get(&self.id).unwrap() {
[INFO] [stderr]    |                      ^^^^^^^^^ help: consider prefixing with an underscore: `_arg_types`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/bytecode.rs:197:33
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                 ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_map`
[INFO] [stderr]    --> src/bytecode.rs:197:52
[INFO] [stderr]     |
[INFO] [stderr] 197 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: consider prefixing with an underscore: `_type_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/bytecode.rs:255:33
[INFO] [stderr]     |
[INFO] [stderr] 255 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                 ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `type_map`
[INFO] [stderr]    --> src/bytecode.rs:255:52
[INFO] [stderr]     |
[INFO] [stderr] 255 |     fn generate_bytecode(&self, context: &Context, type_map: &mut HashMap<usize, typing::Type>) -> String {
[INFO] [stderr]     |                                                    ^^^^^^^^ help: consider prefixing with an underscore: `_type_map`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:161:30
[INFO] [stderr]     |
[INFO] [stderr] 161 |     pub fn get_parent(&self, context: &Context) -> Option<&Scope> {
[INFO] [stderr]     |                              ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:176:37
[INFO] [stderr]     |
[INFO] [stderr] 176 |     fn get_true_declarations(&self, context: &Context) -> HashSet<Identifier> {
[INFO] [stderr]     |                                     ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/scoping.rs:195:14
[INFO] [stderr]     |
[INFO] [stderr] 195 |         for (i, stmt) in self.data.declarations.iter_mut().enumerate() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]    --> src/scoping.rs:247:14
[INFO] [stderr]     |
[INFO] [stderr] 247 |         for (i, stmt) in self.data.statements.iter_mut().enumerate() {
[INFO] [stderr]     |              ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `typed_name`
[INFO] [stderr]    --> src/scoping.rs:300:27
[INFO] [stderr]     |
[INFO] [stderr] 300 |             Stmt::LetStmt{typed_name, expression} => {
[INFO] [stderr]     |                           ^^^^^^^^^^ help: try ignoring the field: `typed_name: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/scoping.rs:304:34
[INFO] [stderr]     |
[INFO] [stderr] 304 |             Stmt::AssignmentStmt{name, expression, ..} => {
[INFO] [stderr]     |                                  ^^^^ help: try ignoring the field: `name: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `kwargs`
[INFO] [stderr]    --> src/scoping.rs:308:55
[INFO] [stderr]     |
[INFO] [stderr] 308 |             Stmt::FunctionDecStmt{name, args, vararg, kwargs, varkwarg, ref mut block, return_type} => {
[INFO] [stderr]     |                                                       ^^^^^^ help: try ignoring the field: `kwargs: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/scoping.rs:308:35
[INFO] [stderr]     |
[INFO] [stderr] 308 |             Stmt::FunctionDecStmt{name, args, vararg, kwargs, varkwarg, ref mut block, return_type} => {
[INFO] [stderr]     |                                   ^^^^ help: try ignoring the field: `name: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `return_type`
[INFO] [stderr]    --> src/scoping.rs:308:88
[INFO] [stderr]     |
[INFO] [stderr] 308 |             Stmt::FunctionDecStmt{name, args, vararg, kwargs, varkwarg, ref mut block, return_type} => {
[INFO] [stderr]     |                                                                                        ^^^^^^^^^^^ help: try ignoring the field: `return_type: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:419:37
[INFO] [stderr]     |
[INFO] [stderr] 419 |     fn get_true_declarations(&self, context: &Context) -> HashSet<Identifier> {
[INFO] [stderr]     |                                     ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `operator`
[INFO] [stderr]    --> src/scoping.rs:429:38
[INFO] [stderr]     |
[INFO] [stderr] 429 |             Expr::BinaryExpr{ref mut operator, ref mut left, ref mut right} => {
[INFO] [stderr]     |                              --------^^^^^^^^
[INFO] [stderr]     |                              |
[INFO] [stderr]     |                              help: try ignoring the field: `operator: _`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `name`
[INFO] [stderr]    --> src/scoping.rs:505:34
[INFO] [stderr]     |
[INFO] [stderr] 505 |                 Stmt::ReturnStmt(name) => {
[INFO] [stderr]     |                                  ^^^^ help: consider prefixing with an underscore: `_name`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `context`
[INFO] [stderr]    --> src/scoping.rs:530:13
[INFO] [stderr]     |
[INFO] [stderr] 530 |         let context = func_stmt.gen_scopes(id, &init);
[INFO] [stderr]     |             ^^^^^^^ help: consider prefixing with an underscore: `_context`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fn_node1`
[INFO] [stderr]    --> src/scoping.rs:585:21
[INFO] [stderr]     |
[INFO] [stderr] 585 |                 let fn_node1 = match fn1.extract_stmt() {
[INFO] [stderr]     |                     ^^^^^^^^ help: consider prefixing with an underscore: `_fn_node1`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `fn_node2`
[INFO] [stderr]    --> src/scoping.rs:592:21
[INFO] [stderr]     |
[INFO] [stderr] 592 |                 let fn_node2 = match fn2.extract_stmt() {
[INFO] [stderr]     |                     ^^^^^^^^ help: consider prefixing with an underscore: `_fn_node2`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `index`
[INFO] [stderr]    --> src/typing.rs:250:60
[INFO] [stderr]     |
[INFO] [stderr] 250 |             scoping::CanModifyScope::Argument(ref ptr, ref index) => {
[INFO] [stderr]     |                                                            ^^^^^ help: consider prefixing with an underscore: `_index`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `ptr`
[INFO] [stderr]    --> src/typing.rs:250:51
[INFO] [stderr]     |
[INFO] [stderr] 250 |             scoping::CanModifyScope::Argument(ref ptr, ref index) => {
[INFO] [stderr]     |                                                   ^^^ help: consider prefixing with an underscore: `_ptr`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `t`
[INFO] [stderr]    --> src/typing.rs:382:35
[INFO] [stderr]     |
[INFO] [stderr] 382 |                 let (mut new_map, t) = block.resolve_types(context, type_map);
[INFO] [stderr]     |                                   ^ help: consider prefixing with an underscore: `_t`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `input`
[INFO] [stderr]   --> src/compiler_layers.rs:35:14
[INFO] [stderr]    |
[INFO] [stderr] 35 | pub fn parse(input: &[u8]) -> expression::Node<expression::Module>{
[INFO] [stderr]    |              ^^^^^ help: consider prefixing with an underscore: `_input`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scoping.rs:188:13
[INFO] [stderr]     |
[INFO] [stderr] 188 |         let mut new_scope = Scope{parent_id: Some(parent_id), declarations, declaration_order};
[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/scoping.rs:241:13
[INFO] [stderr]     |
[INFO] [stderr] 241 |         let mut new_scope = Scope{parent_id: Some(parent_id), declarations, declaration_order};
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scoping.rs:340:21
[INFO] [stderr]     |
[INFO] [stderr] 340 |                 let mut new_scope = Scope{parent_id: Some(parent_id), declarations, declaration_order};
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:397:22
[INFO] [stderr]     |
[INFO] [stderr] 397 |                 let (mut new_map, _) = condition.resolve_types(context, type_map);
[INFO] [stderr]     |                      ----^^^^^^^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:403:22
[INFO] [stderr]     |
[INFO] [stderr] 403 |                 let (mut new_map, _) = condition.resolve_types(context, type_map);
[INFO] [stderr]     |                      ----^^^^^^^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:409:25
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     let mut expr_map = expr.resolve_types(context, block_map).0;
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:428:35
[INFO] [stderr]     |
[INFO] [stderr] 428 |             Expr::ComparisonExpr {mut left, mut right, operator} => {
[INFO] [stderr]     |                                   ----^^^^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:428:45
[INFO] [stderr]     |
[INFO] [stderr] 428 |             Expr::ComparisonExpr {mut left, mut right, operator} => {
[INFO] [stderr]     |                                             ----^^^^^
[INFO] [stderr]     |                                             |
[INFO] [stderr]     |                                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scoping.rs:188:13
[INFO] [stderr]     |
[INFO] [stderr] 188 |         let mut new_scope = Scope{parent_id: Some(parent_id), declarations, declaration_order};
[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/scoping.rs:241:13
[INFO] [stderr]     |
[INFO] [stderr] 241 |         let mut new_scope = Scope{parent_id: Some(parent_id), declarations, declaration_order};
[INFO] [stderr]     |             ----^^^^^^^^^
[INFO] [stderr]     |             |
[INFO] [stderr]     |             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/scoping.rs:340:21
[INFO] [stderr]     |
[INFO] [stderr] 340 |                 let mut new_scope = Scope{parent_id: Some(parent_id), declarations, declaration_order};
[INFO] [stderr]     |                     ----^^^^^^^^^
[INFO] [stderr]     |                     |
[INFO] [stderr]     |                     help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:397:22
[INFO] [stderr]     |
[INFO] [stderr] 397 |                 let (mut new_map, _) = condition.resolve_types(context, type_map);
[INFO] [stderr]     |                      ----^^^^^^^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:403:22
[INFO] [stderr]     |
[INFO] [stderr] 403 |                 let (mut new_map, _) = condition.resolve_types(context, type_map);
[INFO] [stderr]     |                      ----^^^^^^^
[INFO] [stderr]     |                      |
[INFO] [stderr]     |                      help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:409:25
[INFO] [stderr]     |
[INFO] [stderr] 409 |                     let mut expr_map = expr.resolve_types(context, block_map).0;
[INFO] [stderr]     |                         ----^^^^^^^^
[INFO] [stderr]     |                         |
[INFO] [stderr]     |                         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:428:35
[INFO] [stderr]     |
[INFO] [stderr] 428 |             Expr::ComparisonExpr {mut left, mut right, operator} => {
[INFO] [stderr]     |                                   ----^^^^
[INFO] [stderr]     |                                   |
[INFO] [stderr]     |                                   help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]    --> src/typing.rs:428:45
[INFO] [stderr]     |
[INFO] [stderr] 428 |             Expr::ComparisonExpr {mut left, mut right, operator} => {
[INFO] [stderr]     |                                             ----^^^^^
[INFO] [stderr]     |                                             |
[INFO] [stderr]     |                                             help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `b`
[INFO] [stderr]    --> src/scoping.rs:668:9
[INFO] [stderr]     |
[INFO] [stderr] 668 |         b: f64
[INFO] [stderr]     |         ^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: #[warn(dead_code)] on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 16.31s
[INFO] running `"docker" "inspect" "304b875c6d669145b6b52baada5fcf13a6f6e18bd75b1a3723ca8d45a7e34bb7"`
[INFO] running `"docker" "rm" "-f" "304b875c6d669145b6b52baada5fcf13a6f6e18bd75b1a3723ca8d45a7e34bb7"`
[INFO] [stdout] 304b875c6d669145b6b52baada5fcf13a6f6e18bd75b1a3723ca8d45a7e34bb7