[INFO] cloning repository https://github.com/safsom/alif
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/safsom/alif" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsafsom%2Falif", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsafsom%2Falif'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 786504c115ca9a5325867a2ff8f9bc87e59afba3
[INFO] checking safsom/alif against beta for pr-78714
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fsafsom%2Falif" "/workspace/builds/worker-10/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-10/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/safsom/alif on toolchain beta
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/safsom/alif
[INFO] finished tweaking git repo https://github.com/safsom/alif
[INFO] tweaked toml for git repo https://github.com/safsom/alif written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate git repo https://github.com/safsom/alif already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c74c04d7f34e08c33de4a2896214cf762ca43a90b70d6a894197a10df0965698
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "c74c04d7f34e08c33de4a2896214cf762ca43a90b70d6a894197a10df0965698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c74c04d7f34e08c33de4a2896214cf762ca43a90b70d6a894197a10df0965698", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c74c04d7f34e08c33de4a2896214cf762ca43a90b70d6a894197a10df0965698", kill_on_drop: false }`
[INFO] [stdout] c74c04d7f34e08c33de4a2896214cf762ca43a90b70d6a894197a10df0965698
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/source:/opt/rustwide/workdir:ro,Z" "-v" "/var/lib/crater-agent-workspace/cargo-home:/opt/rustwide/cargo-home:ro,Z" "-v" "/var/lib/crater-agent-workspace/rustup-home:/opt/rustwide/rustup-home:ro,Z" "-e" "SOURCE_DIR=/opt/rustwide/workdir" "-e" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=forbid" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "rustops/crates-build-env@sha256:6eabd152ff4036248d66efda456a36cb33d24b7291b33f25f75140726c88da35" "/opt/rustwide/cargo-home/bin/cargo" "+beta" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 06fe7a0d5e38f2c208ed94bb5ea7a0378e7e78177f1c8f070ace6b8cc2d2b03b
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "06fe7a0d5e38f2c208ed94bb5ea7a0378e7e78177f1c8f070ace6b8cc2d2b03b", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Checking ac v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lexer.rs:229:42
[INFO] [stdout]     |
[INFO] [stdout] 229 |             TokenType::Identifier(ref s, ref b) => println!("identifier {} on line {} at char {}", s, token.token_line, token.token_pos),
[INFO] [stdout]     |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/parser.rs:69:39
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     TokenType::String(ref s) => panic!("error: type mismatch: cannot operate on integers and strings"),
[INFO] [stdout]    |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/lexer.rs:229:42
[INFO] [stdout]     |
[INFO] [stdout] 229 |             TokenType::Identifier(ref s, ref b) => println!("identifier {} on line {} at char {}", s, token.token_line, token.token_pos),
[INFO] [stdout]     |                                          ^^^^^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `s`
[INFO] [stdout]   --> src/parser.rs:69:39
[INFO] [stdout]    |
[INFO] [stdout] 69 |                     TokenType::String(ref s) => panic!("error: type mismatch: cannot operate on integers and strings"),
[INFO] [stdout]    |                                       ^^^^^ help: if this is intentional, prefix it with an underscore: `_s`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut i = 0;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Division`
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Division,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftShift`
[INFO] [stdout]   --> src/parser.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     LeftShift,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightShift`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     RightShift,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringLiteral`
[INFO] [stdout]   --> src/parser.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Character`
[INFO] [stdout]   --> src/parser.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Character(char),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Const`
[INFO] [stdout]   --> src/parser.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Const(String, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/parser.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Unary(Operators, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Call`
[INFO] [stdout]   --> src/parser.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Call(String, Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/parser.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Function(String, Vec<Expression>, Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/parser.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     If(Box<Expression>, Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/parser.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Else(Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `keywords` should have an upper case name
[INFO] [stdout]  --> src/lexer.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const keywords: [&str; 10] = ["const", "record", "char", "string", "int", "bool", "if", "else", "match", "enum"];
[INFO] [stdout]   |       ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/parser.rs:62:9
[INFO] [stdout]    |
[INFO] [stdout] 62 |     let mut i = 0;
[INFO] [stdout]    |         ----^
[INFO] [stdout]    |         |
[INFO] [stdout]    |         help: remove this `mut`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Division`
[INFO] [stdout]  --> src/parser.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 |     Division,
[INFO] [stdout]   |     ^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `LeftShift`
[INFO] [stdout]   --> src/parser.rs:12:5
[INFO] [stdout]    |
[INFO] [stdout] 12 |     LeftShift,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RightShift`
[INFO] [stdout]   --> src/parser.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 13 |     RightShift,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `StringLiteral`
[INFO] [stdout]   --> src/parser.rs:28:5
[INFO] [stdout]    |
[INFO] [stdout] 28 |     StringLiteral(String),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Character`
[INFO] [stdout]   --> src/parser.rs:29:5
[INFO] [stdout]    |
[INFO] [stdout] 29 |     Character(char),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Const`
[INFO] [stdout]   --> src/parser.rs:30:5
[INFO] [stdout]    |
[INFO] [stdout] 30 |     Const(String, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Unary`
[INFO] [stdout]   --> src/parser.rs:31:5
[INFO] [stdout]    |
[INFO] [stdout] 31 |     Unary(Operators, Box<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Call`
[INFO] [stdout]   --> src/parser.rs:33:5
[INFO] [stdout]    |
[INFO] [stdout] 33 |     Call(String, Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Function`
[INFO] [stdout]   --> src/parser.rs:34:5
[INFO] [stdout]    |
[INFO] [stdout] 34 |     Function(String, Vec<Expression>, Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `If`
[INFO] [stdout]   --> src/parser.rs:35:5
[INFO] [stdout]    |
[INFO] [stdout] 35 |     If(Box<Expression>, Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `Else`
[INFO] [stdout]   --> src/parser.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     Else(Vec<Expression>),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant `keywords` should have an upper case name
[INFO] [stdout]  --> src/lexer.rs:1:7
[INFO] [stdout]   |
[INFO] [stdout] 1 | const keywords: [&str; 10] = ["const", "record", "char", "string", "int", "bool", "if", "else", "match", "enum"];
[INFO] [stdout]   |       ^^^^^^^^ help: convert the identifier to upper case: `KEYWORDS`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(non_upper_case_globals)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 15 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.79s
[INFO] running `Command { std: "docker" "inspect" "06fe7a0d5e38f2c208ed94bb5ea7a0378e7e78177f1c8f070ace6b8cc2d2b03b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "06fe7a0d5e38f2c208ed94bb5ea7a0378e7e78177f1c8f070ace6b8cc2d2b03b", kill_on_drop: false }`
[INFO] [stdout] 06fe7a0d5e38f2c208ed94bb5ea7a0378e7e78177f1c8f070ace6b8cc2d2b03b