[INFO] fetching crate rusty-zig 0.1.0...
[INFO] building rusty-zig-0.1.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate rusty-zig 0.1.0 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate rusty-zig 0.1.0
[INFO] finished tweaking crates.io crate rusty-zig 0.1.0
[INFO] tweaked toml for crates.io crate rusty-zig 0.1.0 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rusty-zig 0.1.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rusty-zig 0.1.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b5c8fd24f8683c0e0b858fb83696636e8a6f1908671f49494f7daf2a9dadbeb3
[INFO] running `Command { std: "docker" "start" "-a" "b5c8fd24f8683c0e0b858fb83696636e8a6f1908671f49494f7daf2a9dadbeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b5c8fd24f8683c0e0b858fb83696636e8a6f1908671f49494f7daf2a9dadbeb3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b5c8fd24f8683c0e0b858fb83696636e8a6f1908671f49494f7daf2a9dadbeb3", kill_on_drop: false }`
[INFO] [stdout] b5c8fd24f8683c0e0b858fb83696636e8a6f1908671f49494f7daf2a9dadbeb3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1927090fce4da1eb9ca160d7780df4557f4760af4176526293b693b5048d1b53
[INFO] running `Command { std: "docker" "start" "-a" "1927090fce4da1eb9ca160d7780df4557f4760af4176526293b693b5048d1b53", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-zig v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `start`, `end`, and `line` are never read
[INFO] [stdout]  --> src/tokenizer/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Pos {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 3 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     end: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     line: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Pos` 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: field `0` is never read
[INFO] [stdout]    --> src/tokenizer/token.rs:113:18
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Token(Pos, TokenType);
[INFO] [stdout]     |            ----- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 - pub struct Token(Pos, TokenType);
[INFO] [stdout] 113 + pub struct Token((), TokenType);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]   --> src/tokenizer/tokenizer.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Tokenizer {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `curr`, `peek`, `advance`, and `next_token` are never used
[INFO] [stdout]   --> src/tokenizer/tokenizer.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Tokenizer {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 74 |     pub fn new(src: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn curr(&self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     fn peek(&self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn advance(&mut self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn next_token(&mut self) -> Option<Token> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.69s
[INFO] running `Command { std: "docker" "inspect" "1927090fce4da1eb9ca160d7780df4557f4760af4176526293b693b5048d1b53", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1927090fce4da1eb9ca160d7780df4557f4760af4176526293b693b5048d1b53", kill_on_drop: false }`
[INFO] [stdout] 1927090fce4da1eb9ca160d7780df4557f4760af4176526293b693b5048d1b53
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 51bbec79b7d2e0d483010688ddaf8067cc18415d9608b73d2a1fbbaba09ef9c8
[INFO] running `Command { std: "docker" "start" "-a" "51bbec79b7d2e0d483010688ddaf8067cc18415d9608b73d2a1fbbaba09ef9c8", kill_on_drop: false }`
[INFO] [stderr]    Compiling rusty-zig v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: fields `start`, `end`, and `line` are never read
[INFO] [stdout]  --> src/tokenizer/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Pos {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 3 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     end: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     line: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Pos` 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: field `0` is never read
[INFO] [stdout]    --> src/tokenizer/token.rs:113:18
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Token(Pos, TokenType);
[INFO] [stdout]     |            ----- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 - pub struct Token(Pos, TokenType);
[INFO] [stdout] 113 + pub struct Token((), TokenType);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]   --> src/tokenizer/tokenizer.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Tokenizer {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `curr`, `peek`, `advance`, and `next_token` are never used
[INFO] [stdout]   --> src/tokenizer/tokenizer.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Tokenizer {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 74 |     pub fn new(src: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn curr(&self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     fn peek(&self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn advance(&mut self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn next_token(&mut self) -> Option<Token> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `start`, `end`, and `line` are never read
[INFO] [stdout]  --> src/tokenizer/token.rs:3:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub struct Pos {
[INFO] [stdout]   |            --- fields in this struct
[INFO] [stdout] 3 |     start: usize,
[INFO] [stdout]   |     ^^^^^
[INFO] [stdout] 4 |     end: usize,
[INFO] [stdout]   |     ^^^
[INFO] [stdout] 5 |     line: usize,
[INFO] [stdout]   |     ^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `Pos` 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: field `0` is never read
[INFO] [stdout]    --> src/tokenizer/token.rs:113:18
[INFO] [stdout]     |
[INFO] [stdout] 113 | pub struct Token(Pos, TokenType);
[INFO] [stdout]     |            ----- ^^^
[INFO] [stdout]     |            |
[INFO] [stdout]     |            field in this struct
[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] help: consider changing the field to be of unit type to suppress this warning while preserving the field numbering, or remove the field
[INFO] [stdout]     |
[INFO] [stdout] 113 - pub struct Token(Pos, TokenType);
[INFO] [stdout] 113 + pub struct Token((), TokenType);
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Tokenizer` is never constructed
[INFO] [stdout]   --> src/tokenizer/tokenizer.rs:67:8
[INFO] [stdout]    |
[INFO] [stdout] 67 | struct Tokenizer {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `curr`, `peek`, `advance`, and `next_token` are never used
[INFO] [stdout]   --> src/tokenizer/tokenizer.rs:74:12
[INFO] [stdout]    |
[INFO] [stdout] 73 | impl Tokenizer {
[INFO] [stdout]    | -------------- associated items in this implementation
[INFO] [stdout] 74 |     pub fn new(src: String) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 82 |     fn curr(&self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 86 |     fn peek(&self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 90 |     fn advance(&mut self) -> Option<u8> {
[INFO] [stdout]    |        ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 96 |     pub fn next_token(&mut self) -> Option<Token> {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.56s
[INFO] running `Command { std: "docker" "inspect" "51bbec79b7d2e0d483010688ddaf8067cc18415d9608b73d2a1fbbaba09ef9c8", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51bbec79b7d2e0d483010688ddaf8067cc18415d9608b73d2a1fbbaba09ef9c8", kill_on_drop: false }`
[INFO] [stdout] 51bbec79b7d2e0d483010688ddaf8067cc18415d9608b73d2a1fbbaba09ef9c8
