Dec 17 16:13:56.767 INFO checking safsom/alif against master#96d1334e567237b1507cd277938e7ae2de75ff51 for pr-54252
Dec 17 16:13:56.767 INFO running `"docker" "create" "-v" "/mnt/big/crater/work/local/target-dirs/pr-54252/worker-0/master#96d1334e567237b1507cd277938e7ae2de75ff51:/opt/crater/target:rw,Z" "-v" "/mnt/big/crater/work/ex/pr-54252/sources/master#96d1334e567237b1507cd277938e7ae2de75ff51/gh/safsom/alif:/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=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" "+96d1334e567237b1507cd277938e7ae2de75ff51-alt" "check" "--frozen" "--all" "--all-targets"`
Dec 17 16:13:56.964 INFO [stdout] d9b4bf72cc1c35c0791d2c9e810b4e3d6752b006d6733b69ed8992dd9a55e69c
Dec 17 16:13:56.966 INFO running `"docker" "start" "-a" "d9b4bf72cc1c35c0791d2c9e810b4e3d6752b006d6733b69ed8992dd9a55e69c"`
Dec 17 16:13:57.694 INFO [stderr]     Checking ac v0.1.0 (/opt/crater/workdir)
Dec 17 16:13:57.947 INFO [stderr] warning: unused variable: `b`
Dec 17 16:13:57.947 INFO [stderr]    --> src/lexer.rs:229:46
Dec 17 16:13:57.947 INFO [stderr]     |
Dec 17 16:13:57.947 INFO [stderr] 229 |             TokenType::Identifier(ref s, ref b) => println!("identifier {} on line {} at char {}", s, token.token_line, token.token_pos),
Dec 17 16:13:57.947 INFO [stderr]     |                                              ^ help: consider using `_b` instead
Dec 17 16:13:57.947 INFO [stderr]     |
Dec 17 16:13:57.947 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 16:13:57.947 INFO [stderr] 
Dec 17 16:13:57.947 INFO [stderr] warning: unused variable: `s`
Dec 17 16:13:57.947 INFO [stderr]   --> src/parser.rs:69:43
Dec 17 16:13:57.947 INFO [stderr]    |
Dec 17 16:13:57.947 INFO [stderr] 69 |                     TokenType::String(ref s) => panic!("error: type mismatch: cannot operate on integers and strings"),
Dec 17 16:13:57.947 INFO [stderr]    |                                           ^ help: consider using `_s` instead
Dec 17 16:13:57.947 INFO [stderr] 
Dec 17 16:13:57.959 INFO [stderr] warning: unused variable: `b`
Dec 17 16:13:57.961 INFO [stderr]    --> src/lexer.rs:229:46
Dec 17 16:13:57.961 INFO [stderr]     |
Dec 17 16:13:57.961 INFO [stderr] 229 |             TokenType::Identifier(ref s, ref b) => println!("identifier {} on line {} at char {}", s, token.token_line, token.token_pos),
Dec 17 16:13:57.961 INFO [stderr]     |                                              ^ help: consider using `_b` instead
Dec 17 16:13:57.961 INFO [stderr]     |
Dec 17 16:13:57.961 INFO [stderr]     = note: #[warn(unused_variables)] on by default
Dec 17 16:13:57.961 INFO [stderr] 
Dec 17 16:13:57.961 INFO [stderr] warning: unused variable: `s`
Dec 17 16:13:57.961 INFO [stderr]   --> src/parser.rs:69:43
Dec 17 16:13:57.961 INFO [stderr]    |
Dec 17 16:13:57.961 INFO [stderr] 69 |                     TokenType::String(ref s) => panic!("error: type mismatch: cannot operate on integers and strings"),
Dec 17 16:13:57.961 INFO [stderr]    |                                           ^ help: consider using `_s` instead
Dec 17 16:13:57.961 INFO [stderr] 
Dec 17 16:13:57.988 INFO [stderr] warning: variable does not need to be mutable
Dec 17 16:13:57.988 INFO [stderr]   --> src/parser.rs:62:9
Dec 17 16:13:57.988 INFO [stderr]    |
Dec 17 16:13:57.988 INFO [stderr] 62 |     let mut i = 0;
Dec 17 16:13:57.988 INFO [stderr]    |         ----^
Dec 17 16:13:57.988 INFO [stderr]    |         |
Dec 17 16:13:57.989 INFO [stderr]    |         help: remove this `mut`
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Division`
Dec 17 16:13:57.989 INFO [stderr]  --> src/parser.rs:8:5
Dec 17 16:13:57.989 INFO [stderr]   |
Dec 17 16:13:57.989 INFO [stderr] 8 |     Division,
Dec 17 16:13:57.989 INFO [stderr]   |     ^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr]   |
Dec 17 16:13:57.989 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `LeftShift`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:12:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 12 |     LeftShift,
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `RightShift`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:13:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 13 |     RightShift,
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `StringLiteral`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:28:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 28 |     StringLiteral(String),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Character`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:29:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 29 |     Character(char),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Const`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:30:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 30 |     Const(String, Box<Expression>),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Unary`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:31:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 31 |     Unary(Operators, Box<Expression>),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Call`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:33:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 33 |     Call(String, Vec<Expression>),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Function`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:34:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 34 |     Function(String, Vec<Expression>, Vec<Expression>),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `If`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:35:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 35 |     If(Box<Expression>, Vec<Expression>),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: variant is never constructed: `Else`
Dec 17 16:13:57.989 INFO [stderr]   --> src/parser.rs:36:5
Dec 17 16:13:57.989 INFO [stderr]    |
Dec 17 16:13:57.989 INFO [stderr] 36 |     Else(Vec<Expression>),
Dec 17 16:13:57.989 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:57.989 INFO [stderr] warning: constant `keywords` should have an upper case name such as `KEYWORDS`
Dec 17 16:13:57.989 INFO [stderr]  --> src/lexer.rs:1:1
Dec 17 16:13:57.989 INFO [stderr]   |
Dec 17 16:13:57.989 INFO [stderr] 1 | const keywords: [&str; 10] = ["const", "record", "char", "string", "int", "bool", "if", "else", "match", "enum"];
Dec 17 16:13:57.989 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:57.989 INFO [stderr]   |
Dec 17 16:13:57.989 INFO [stderr]   = note: #[warn(non_upper_case_globals)] on by default
Dec 17 16:13:57.989 INFO [stderr] 
Dec 17 16:13:58.003 INFO [stderr] warning: variable does not need to be mutable
Dec 17 16:13:58.003 INFO [stderr]   --> src/parser.rs:62:9
Dec 17 16:13:58.003 INFO [stderr]    |
Dec 17 16:13:58.003 INFO [stderr] 62 |     let mut i = 0;
Dec 17 16:13:58.003 INFO [stderr]    |         ----^
Dec 17 16:13:58.003 INFO [stderr]    |         |
Dec 17 16:13:58.003 INFO [stderr]    |         help: remove this `mut`
Dec 17 16:13:58.003 INFO [stderr]    |
Dec 17 16:13:58.003 INFO [stderr]    = note: #[warn(unused_mut)] on by default
Dec 17 16:13:58.003 INFO [stderr] 
Dec 17 16:13:58.003 INFO [stderr] warning: variant is never constructed: `Division`
Dec 17 16:13:58.003 INFO [stderr]  --> src/parser.rs:8:5
Dec 17 16:13:58.003 INFO [stderr]   |
Dec 17 16:13:58.003 INFO [stderr] 8 |     Division,
Dec 17 16:13:58.003 INFO [stderr]   |     ^^^^^^^^
Dec 17 16:13:58.003 INFO [stderr]   |
Dec 17 16:13:58.003 INFO [stderr]   = note: #[warn(dead_code)] on by default
Dec 17 16:13:58.003 INFO [stderr] 
Dec 17 16:13:58.003 INFO [stderr] warning: variant is never constructed: `LeftShift`
Dec 17 16:13:58.003 INFO [stderr]   --> src/parser.rs:12:5
Dec 17 16:13:58.003 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 12 |     LeftShift,
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `RightShift`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:13:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 13 |     RightShift,
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `StringLiteral`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:28:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 28 |     StringLiteral(String),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `Character`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:29:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 29 |     Character(char),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `Const`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:30:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 30 |     Const(String, Box<Expression>),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `Unary`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:31:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 31 |     Unary(Operators, Box<Expression>),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `Call`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:33:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 33 |     Call(String, Vec<Expression>),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `Function`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:34:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 34 |     Function(String, Vec<Expression>, Vec<Expression>),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `If`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:35:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 35 |     If(Box<Expression>, Vec<Expression>),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: variant is never constructed: `Else`
Dec 17 16:13:58.004 INFO [stderr]   --> src/parser.rs:36:5
Dec 17 16:13:58.004 INFO [stderr]    |
Dec 17 16:13:58.004 INFO [stderr] 36 |     Else(Vec<Expression>),
Dec 17 16:13:58.004 INFO [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.004 INFO [stderr] warning: constant `keywords` should have an upper case name such as `KEYWORDS`
Dec 17 16:13:58.004 INFO [stderr]  --> src/lexer.rs:1:1
Dec 17 16:13:58.004 INFO [stderr]   |
Dec 17 16:13:58.004 INFO [stderr] 1 | const keywords: [&str; 10] = ["const", "record", "char", "string", "int", "bool", "if", "else", "match", "enum"];
Dec 17 16:13:58.004 INFO [stderr]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
Dec 17 16:13:58.004 INFO [stderr]   |
Dec 17 16:13:58.004 INFO [stderr]   = note: #[warn(non_upper_case_globals)] on by default
Dec 17 16:13:58.004 INFO [stderr] 
Dec 17 16:13:58.018 INFO [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.33s
Dec 17 16:13:58.278 INFO running `"docker" "inspect" "d9b4bf72cc1c35c0791d2c9e810b4e3d6752b006d6733b69ed8992dd9a55e69c"`
Dec 17 16:13:58.360 INFO running `"docker" "rm" "-f" "d9b4bf72cc1c35c0791d2c9e810b4e3d6752b006d6733b69ed8992dd9a55e69c"`
Dec 17 16:13:58.437 INFO [stdout] d9b4bf72cc1c35c0791d2c9e810b4e3d6752b006d6733b69ed8992dd9a55e69c