[INFO] cloning repository https://github.com/stanonyime/neto
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stanonyime/neto" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanonyime%2Fneto", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanonyime%2Fneto'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 45dcd09476102f71d2c4b717b8457c6315ad69d1
[INFO] checking stanonyime/neto against try#22cc29ba5b459fb386c0406b9baf3a49eb0fba39 for pr-146095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanonyime%2Fneto" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stanonyime/neto
[INFO] finished tweaking git repo https://github.com/stanonyime/neto
[INFO] tweaked toml for git repo https://github.com/stanonyime/neto written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stanonyime/neto on toolchain 22cc29ba5b459fb386c0406b9baf3a49eb0fba39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22cc29ba5b459fb386c0406b9baf3a49eb0fba39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stanonyime/neto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22cc29ba5b459fb386c0406b9baf3a49eb0fba39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[INFO] checking stanonyime/neto against try#22cc29ba5b459fb386c0406b9baf3a49eb0fba39 for pr-146095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstanonyime%2Fneto" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/stanonyime/neto
[INFO] finished tweaking git repo https://github.com/stanonyime/neto
[INFO] tweaked toml for git repo https://github.com/stanonyime/neto written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/stanonyime/neto on toolchain 22cc29ba5b459fb386c0406b9baf3a49eb0fba39
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22cc29ba5b459fb386c0406b9baf3a49eb0fba39" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/stanonyime/neto already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+22cc29ba5b459fb386c0406b9baf3a49eb0fba39" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+22cc29ba5b459fb386c0406b9baf3a49eb0fba39" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 663064f25a4f4ad76629436dff990c64554f44e136a1668bf62c5b17a5662e89
[INFO] running `Command { std: "docker" "start" "-a" "663064f25a4f4ad76629436dff990c64554f44e136a1668bf62c5b17a5662e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "663064f25a4f4ad76629436dff990c64554f44e136a1668bf62c5b17a5662e89", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "663064f25a4f4ad76629436dff990c64554f44e136a1668bf62c5b17a5662e89", kill_on_drop: false }`
[INFO] [stdout] 663064f25a4f4ad76629436dff990c64554f44e136a1668bf62c5b17a5662e89
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/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" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:aa71247004a7fa38d13ec170f48f06cdedf5bc50b2a8645e56ed7e992e6fa513" "/opt/rustwide/cargo-home/bin/cargo" "+22cc29ba5b459fb386c0406b9baf3a49eb0fba39" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6f098c1cb89baf9a005594b5c9ffbc9b12ddc460f0e77b3276a4341d0bd8a64d
[INFO] running `Command { std: "docker" "start" "-a" "6f098c1cb89baf9a005594b5c9ffbc9b12ddc460f0e77b3276a4341d0bd8a64d", kill_on_drop: false }`
[INFO] [stderr]     Checking neto_lang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/scanner.rs:5:2
[INFO] [stdout]    |
[INFO] [stdout]  3 | enum TokenKind {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout]  4 |     LeftParen,
[INFO] [stdout]  5 |     RightParen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]  6 |     LeftBrace,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]  7 |     RightBrace,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]  8 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  9 |     Dot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 13 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 14 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Bang,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     BangEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     EqualEqual,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 21 |     Greater,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 22 |     GreaterEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     Less,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     LessEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     Identifier,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     And,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 33 |     Class,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 34 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 35 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 36 |     Fun,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 37 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 38 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 39 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 40 |     Or,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 41 |     Print,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 42 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 |     Super,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 44 |     This,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 45 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 46 |     Var,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 47 |     While,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 48 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `literal`, and `line` are never read
[INFO] [stdout]   --> src/scanner.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 52 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     literal:  char,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 54 |     line: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]   --> src/scanner.rs:63:2
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct Scanner {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     line: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scanner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple variants are never constructed
[INFO] [stdout]   --> src/scanner.rs:5:2
[INFO] [stdout]    |
[INFO] [stdout]  3 | enum TokenKind {
[INFO] [stdout]    |      --------- variants in this enum
[INFO] [stdout]  4 |     LeftParen,
[INFO] [stdout]  5 |     RightParen,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]  6 |     LeftBrace,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout]  7 |     RightBrace,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout]  8 |     Comma,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]  9 |     Dot,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 10 |     Minus,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 11 |     Plus,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 12 |     Semicolon,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 13 |     Slash,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 14 |     Star,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 17 |     Bang,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 18 |     BangEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] 19 |     Equal,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 20 |     EqualEqual,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 21 |     Greater,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 22 |     GreaterEqual,
[INFO] [stdout]    |     ^^^^^^^^^^^^
[INFO] [stdout] 23 |     Less,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 24 |     LessEqual,
[INFO] [stdout]    |     ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 27 |     Identifier,
[INFO] [stdout]    |     ^^^^^^^^^^
[INFO] [stdout] 28 |     String,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 29 |     Number,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     And,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 33 |     Class,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 34 |     Else,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 35 |     False,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 36 |     Fun,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 37 |     For,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 38 |     If,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 39 |     Nil,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 40 |     Or,
[INFO] [stdout]    |     ^^
[INFO] [stdout] 41 |     Print,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 42 |     Return,
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 |     Super,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 44 |     This,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 45 |     True,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 46 |     Var,
[INFO] [stdout]    |     ^^^
[INFO] [stdout] 47 |     While,
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout] 48 |     Eof,
[INFO] [stdout]    |     ^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `TokenKind` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `kind`, `literal`, and `line` are never read
[INFO] [stdout]   --> src/scanner.rs:52:2
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct Token {
[INFO] [stdout]    |            ----- fields in this struct
[INFO] [stdout] 52 |     kind: TokenKind,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout] 53 |     literal:  char,
[INFO] [stdout]    |     ^^^^^^^
[INFO] [stdout] 54 |     line: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Token` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `line` is never read
[INFO] [stdout]   --> src/scanner.rs:63:2
[INFO] [stdout]    |
[INFO] [stdout] 58 | pub struct Scanner {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] ...
[INFO] [stdout] 63 |     line: u16,
[INFO] [stdout]    |     ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Scanner` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.07s
[INFO] running `Command { std: "docker" "inspect" "6f098c1cb89baf9a005594b5c9ffbc9b12ddc460f0e77b3276a4341d0bd8a64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6f098c1cb89baf9a005594b5c9ffbc9b12ddc460f0e77b3276a4341d0bd8a64d", kill_on_drop: false }`
[INFO] [stdout] 6f098c1cb89baf9a005594b5c9ffbc9b12ddc460f0e77b3276a4341d0bd8a64d
