[INFO] updating cached repository veekxt/xt_lang
[INFO] running `"git" "fetch" "--all"`
[INFO] [stdout] Fetching origin
[INFO] [stderr] From git://github.com/veekxt/xt_lang
[INFO] [stderr]  * branch            HEAD       -> FETCH_HEAD
[INFO] running `"git" "clone" "work/cache/sources/gh/veekxt/xt_lang" "work/ex/beta-1.38-1/sources/1.37.0/gh/veekxt/xt_lang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/1.37.0/gh/veekxt/xt_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "clone" "work/cache/sources/gh/veekxt/xt_lang" "work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/veekxt/xt_lang"`
[INFO] [stderr] Cloning into 'work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/veekxt/xt_lang'...
[INFO] [stderr] done.
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 0dcfb70820a5a3c2e4c31d95c89184ae0af1395d
[INFO] sha for GitHub repo veekxt/xt_lang: 0dcfb70820a5a3c2e4c31d95c89184ae0af1395d
[INFO] validating manifest of veekxt/xt_lang on toolchain 1.37.0
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] validating manifest of veekxt/xt_lang on toolchain beta-2019-08-13
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started frobbing veekxt/xt_lang
[INFO] finished frobbing veekxt/xt_lang
[INFO] frobbed toml for veekxt/xt_lang written to work/ex/beta-1.38-1/sources/1.37.0/gh/veekxt/xt_lang/Cargo.toml
[INFO] started frobbing veekxt/xt_lang
[INFO] finished frobbing veekxt/xt_lang
[INFO] frobbed toml for veekxt/xt_lang written to work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/veekxt/xt_lang/Cargo.toml
[INFO] crate veekxt/xt_lang already has a lockfile, it will not be regenerated
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+1.37.0" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"/mnt/big/crater/work/local/cargo-home/bin/cargo" "+beta-2019-08-13" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] testing veekxt/xt_lang against beta-2019-08-13 for beta-1.38-1
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/veekxt/xt_lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "build" "--frozen"`
[INFO] [stdout] c0b2dafbea5db46015912d1aa8a24446cf895c699c73c006704ae608723f98d3
[INFO] running `"docker" "start" "-a" "c0b2dafbea5db46015912d1aa8a24446cf895c699c73c006704ae608723f98d3"`
[INFO] [stderr]    Compiling xt_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[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/lexer.rs:122:27
[INFO] [stderr]     |
[INFO] [stderr] 122 |         'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         '0' ... '9' | 'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:27
[INFO] [stderr]     |
[INFO] [stderr] 129 |         '0' ... '9' | 'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:41
[INFO] [stderr]     |
[INFO] [stderr] 129 |         '0' ... '9' | 'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |                                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |         '0' ... '9' => true,
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         '0' ... '9' => true,
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/parser.rs:294:1
[INFO] [stderr]     |
[INFO] [stderr] 294 | / macro_rules! err_return2 {
[INFO] [stderr] 295 | |     ($fn_exp:expr) => (
[INFO] [stderr] 296 | |         match $fn_exp {
[INFO] [stderr] 297 | |             AST::ERR(s,line) => { return AST::ERR(s,line); },
[INFO] [stderr] ...   |
[INFO] [stderr] 300 | |     )
[INFO] [stderr] 301 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/xt_type.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/main.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 Err(err) => {}
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/parser.rs:573:21
[INFO] [stderr]     |
[INFO] [stderr] 573 |                 Err(err) => {
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/xt_type.rs:27:16
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn new_int(i: i64) -> Box<XtValue> {
[INFO] [stderr]    |                ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/xt_type.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn new_bool(i: bool) -> Box<XtValue> {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/xt_type.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut val = XtValue {
[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/xt_type.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut val = XtValue {
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `in_if`
[INFO] [stderr]    --> src/parser.rs:483:5
[INFO] [stderr]     |
[INFO] [stderr] 483 |     in_if: isize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `err`
[INFO] [stderr]    --> src/parser.rs:487:5
[INFO] [stderr]     |
[INFO] [stderr] 487 |     err: bool,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RETURN`
[INFO] [stderr]   --> src/run.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     RETURN(XtValue),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BREAK`
[INFO] [stderr]   --> src/run.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     BREAK,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CONTINUE`
[INFO] [stderr]   --> src/run.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     CONTINUE,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]  --> src/xt_type.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SysFunction`
[INFO] [stderr]   --> src/xt_type.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     SysFunction(fn(&XtValue) -> ()),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DefFunction`
[INFO] [stderr]   --> src/xt_type.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     DefFunction(Box<AST>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_bool`
[INFO] [stderr]   --> src/xt_type.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn new_bool(i: bool) -> Box<XtValue> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     run(ast);
[INFO] [stderr]    |                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/run.rs:92:17
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 run_var(context, iden, exp);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/run.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 run_stmt(context,stmt);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/run.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |         run_stmt(&mut context, &ast_vec);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.36s
[INFO] running `"docker" "inspect" "c0b2dafbea5db46015912d1aa8a24446cf895c699c73c006704ae608723f98d3"`
[INFO] running `"docker" "rm" "-f" "c0b2dafbea5db46015912d1aa8a24446cf895c699c73c006704ae608723f98d3"`
[INFO] [stdout] c0b2dafbea5db46015912d1aa8a24446cf895c699c73c006704ae608723f98d3
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/veekxt/xt_lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen" "--no-run"`
[INFO] [stdout] d165b3f74f775e01018cc08bec940fb6790356709846e0d89ebfb83796037d38
[INFO] running `"docker" "start" "-a" "d165b3f74f775e01018cc08bec940fb6790356709846e0d89ebfb83796037d38"`
[INFO] [stderr]    Compiling xt_lang v0.1.0 (/opt/crater/workdir)
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:122:13
[INFO] [stderr]     |
[INFO] [stderr] 122 |         'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[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/lexer.rs:122:27
[INFO] [stderr]     |
[INFO] [stderr] 122 |         'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:13
[INFO] [stderr]     |
[INFO] [stderr] 129 |         '0' ... '9' | 'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:27
[INFO] [stderr]     |
[INFO] [stderr] 129 |         '0' ... '9' | 'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |                           ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:129:41
[INFO] [stderr]     |
[INFO] [stderr] 129 |         '0' ... '9' | 'a' ... 'z' | 'A' ... 'Z' | '_' => true,
[INFO] [stderr]     |                                         ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:136:13
[INFO] [stderr]     |
[INFO] [stderr] 136 |         '0' ... '9' => true,
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: `...` range patterns are deprecated
[INFO] [stderr]    --> src/lexer.rs:143:13
[INFO] [stderr]     |
[INFO] [stderr] 143 |         '0' ... '9' => true,
[INFO] [stderr]     |             ^^^ help: use `..=` for an inclusive range
[INFO] [stderr] 
[INFO] [stderr] warning: unused macro definition
[INFO] [stderr]    --> src/parser.rs:294:1
[INFO] [stderr]     |
[INFO] [stderr] 294 | / macro_rules! err_return2 {
[INFO] [stderr] 295 | |     ($fn_exp:expr) => (
[INFO] [stderr] 296 | |         match $fn_exp {
[INFO] [stderr] 297 | |             AST::ERR(s,line) => { return AST::ERR(s,line); },
[INFO] [stderr] ...   |
[INFO] [stderr] 300 | |     )
[INFO] [stderr] 301 | | }
[INFO] [stderr]     | |_^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_macros)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused import: `std::collections::HashSet`
[INFO] [stderr]  --> src/xt_type.rs:3:5
[INFO] [stderr]   |
[INFO] [stderr] 3 | use std::collections::HashSet;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]   --> src/main.rs:31:21
[INFO] [stderr]    |
[INFO] [stderr] 31 |                 Err(err) => {}
[INFO] [stderr]    |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `err`
[INFO] [stderr]    --> src/parser.rs:573:21
[INFO] [stderr]     |
[INFO] [stderr] 573 |                 Err(err) => {
[INFO] [stderr]     |                     ^^^ help: consider prefixing with an underscore: `_err`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/xt_type.rs:27:16
[INFO] [stderr]    |
[INFO] [stderr] 27 | pub fn new_int(i: i64) -> Box<XtValue> {
[INFO] [stderr]    |                ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `i`
[INFO] [stderr]   --> src/xt_type.rs:37:17
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn new_bool(i: bool) -> Box<XtValue> {
[INFO] [stderr]    |                 ^ help: consider prefixing with an underscore: `_i`
[INFO] [stderr] 
[INFO] [stderr] warning: variable does not need to be mutable
[INFO] [stderr]   --> src/xt_type.rs:28:9
[INFO] [stderr]    |
[INFO] [stderr] 28 |     let mut val = XtValue {
[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/xt_type.rs:38:9
[INFO] [stderr]    |
[INFO] [stderr] 38 |     let mut val = XtValue {
[INFO] [stderr]    |         ----^^^
[INFO] [stderr]    |         |
[INFO] [stderr]    |         help: remove this `mut`
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `in_if`
[INFO] [stderr]    --> src/parser.rs:483:5
[INFO] [stderr]     |
[INFO] [stderr] 483 |     in_if: isize,
[INFO] [stderr]     |     ^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `err`
[INFO] [stderr]    --> src/parser.rs:487:5
[INFO] [stderr]     |
[INFO] [stderr] 487 |     err: bool,
[INFO] [stderr]     |     ^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `RETURN`
[INFO] [stderr]   --> src/run.rs:60:5
[INFO] [stderr]    |
[INFO] [stderr] 60 |     RETURN(XtValue),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `BREAK`
[INFO] [stderr]   --> src/run.rs:61:5
[INFO] [stderr]    |
[INFO] [stderr] 61 |     BREAK,
[INFO] [stderr]    |     ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `CONTINUE`
[INFO] [stderr]   --> src/run.rs:62:5
[INFO] [stderr]    |
[INFO] [stderr] 62 |     CONTINUE,
[INFO] [stderr]    |     ^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: field is never used: `name`
[INFO] [stderr]  --> src/xt_type.rs:6:5
[INFO] [stderr]   |
[INFO] [stderr] 6 |     name: String,
[INFO] [stderr]   |     ^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `SysFunction`
[INFO] [stderr]   --> src/xt_type.rs:16:5
[INFO] [stderr]    |
[INFO] [stderr] 16 |     SysFunction(fn(&XtValue) -> ()),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: variant is never constructed: `DefFunction`
[INFO] [stderr]   --> src/xt_type.rs:17:5
[INFO] [stderr]    |
[INFO] [stderr] 17 |     DefFunction(Box<AST>),
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `new_bool`
[INFO] [stderr]   --> src/xt_type.rs:37:1
[INFO] [stderr]    |
[INFO] [stderr] 37 | pub fn new_bool(i: bool) -> Box<XtValue> {
[INFO] [stderr]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/main.rs:29:21
[INFO] [stderr]    |
[INFO] [stderr] 29 |                     run(ast);
[INFO] [stderr]    |                     ^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/run.rs:92:17
[INFO] [stderr]    |
[INFO] [stderr] 92 |                 run_var(context, iden, exp);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]   --> src/run.rs:95:17
[INFO] [stderr]    |
[INFO] [stderr] 95 |                 run_stmt(context,stmt);
[INFO] [stderr]    |                 ^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr] warning: unused `std::result::Result` that must be used
[INFO] [stderr]    --> src/run.rs:111:9
[INFO] [stderr]     |
[INFO] [stderr] 111 |         run_stmt(&mut context, &ast_vec);
[INFO] [stderr]     |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: this `Result` may be an `Err` variant, which should be handled
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.07s
[INFO] running `"docker" "inspect" "d165b3f74f775e01018cc08bec940fb6790356709846e0d89ebfb83796037d38"`
[INFO] running `"docker" "rm" "-f" "d165b3f74f775e01018cc08bec940fb6790356709846e0d89ebfb83796037d38"`
[INFO] [stdout] d165b3f74f775e01018cc08bec940fb6790356709846e0d89ebfb83796037d38
[INFO] running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/beta-1.38-1/worker-5/beta-2019-08-13:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/beta-1.38-1/sources/beta-2019-08-13/gh/veekxt/xt_lang:/opt/crater/workdir:ro,Z" "-v" "/mnt/big/crater/work/local/cargo-home:/opt/crater/cargo-home:ro,Z" "-v" "/mnt/big/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=warn" "-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" "+beta-2019-08-13" "test" "--frozen"`
[INFO] [stdout] b68297d053cf2d4934fe0783f2a977f0a875ad995edd0b4b2960c620462abd17
[INFO] running `"docker" "start" "-a" "b68297d053cf2d4934fe0783f2a977f0a875ad995edd0b4b2960c620462abd17"`
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.02s
[INFO] [stderr]      Running /opt/crater/target/debug/deps/xt_lang-bcec46bcd9352a79
[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" "b68297d053cf2d4934fe0783f2a977f0a875ad995edd0b4b2960c620462abd17"`
[INFO] running `"docker" "rm" "-f" "b68297d053cf2d4934fe0783f2a977f0a875ad995edd0b4b2960c620462abd17"`
[INFO] [stdout] b68297d053cf2d4934fe0783f2a977f0a875ad995edd0b4b2960c620462abd17