[INFO] cloning repository https://github.com/reidswan/monkey-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/reidswan/monkey-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a1dcbf90bf6f62739b657aae3e1c710ee48efc1
[INFO] testing reidswan/monkey-rs against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Freidswan%2Fmonkey-rs" "/workspace/builds/worker-6-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-6-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/reidswan/monkey-rs
[INFO] finished tweaking git repo https://github.com/reidswan/monkey-rs
[INFO] tweaked toml for git repo https://github.com/reidswan/monkey-rs written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/reidswan/monkey-rs on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/reidswan/monkey-rs 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] ad31bf4380b039f523f47894accaa9c87809841c0ac65e34a11875bf331eb64c
[INFO] running `Command { std: "docker" "start" "-a" "ad31bf4380b039f523f47894accaa9c87809841c0ac65e34a11875bf331eb64c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ad31bf4380b039f523f47894accaa9c87809841c0ac65e34a11875bf331eb64c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ad31bf4380b039f523f47894accaa9c87809841c0ac65e34a11875bf331eb64c", kill_on_drop: false }`
[INFO] [stdout] ad31bf4380b039f523f47894accaa9c87809841c0ac65e34a11875bf331eb64c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b27b085571a904620c521ca7ee7dd3cac3fc19eb2a6e93018f97a21cf3051d0e
[INFO] running `Command { std: "docker" "start" "-a" "b27b085571a904620c521ca7ee7dd3cac3fc19eb2a6e93018f97a21cf3051d0e", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: struct `Parser` is never constructed
[INFO] [stdout]   --> src/parser/mod.rs:15:8
[INFO] [stdout]    |
[INFO] [stdout] 15 | struct Parser<'a> {
[INFO] [stdout]    |        ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/parser/mod.rs:20:8
[INFO] [stdout]     |
[INFO] [stdout]  19 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- associated items in this implementation
[INFO] [stdout]  20 |     fn new(l: lexer::Lexer<'a>) -> Self {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout]  26 |     fn parse(&mut self) -> Program {
[INFO] [stdout]     |        ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  42 |     fn parse_statement(&mut self) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  54 |     fn parse_let_statement(&mut self, start: Token) -> Result<Statement, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  72 |     fn expect_peek(&'a mut self, typ: TokenType) -> Result<&'a Token, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  84 |     fn peek(&'a mut self) -> Result<&'a Token, ParseError> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout]  91 |     fn expect_next(&mut self, typ: TokenType) -> Result<Token, ParseError> {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 103 |     fn next(&mut self) -> Result<Token, ParseError> {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Program` is never constructed
[INFO] [stdout]  --> src/parser/ast.rs:5:12
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub struct Program {
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Statement` is never used
[INFO] [stdout]   --> src/parser/ast.rs:11:10
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum Statement {
[INFO] [stdout]    |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Expression` is never used
[INFO] [stdout]   --> src/parser/ast.rs:20:10
[INFO] [stdout]    |
[INFO] [stdout] 20 | pub enum Expression {
[INFO] [stdout]    |          ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Identifier` is never constructed
[INFO] [stdout]   --> src/parser/ast.rs:25:12
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Identifier {
[INFO] [stdout]    |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `ParseError` is never constructed
[INFO] [stdout]  --> src/parser/error.rs:6:12
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub struct ParseError {
[INFO] [stdout]   |            ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.47s
[INFO] running `Command { std: "docker" "inspect" "b27b085571a904620c521ca7ee7dd3cac3fc19eb2a6e93018f97a21cf3051d0e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b27b085571a904620c521ca7ee7dd3cac3fc19eb2a6e93018f97a21cf3051d0e", kill_on_drop: false }`
[INFO] [stdout] b27b085571a904620c521ca7ee7dd3cac3fc19eb2a6e93018f97a21cf3051d0e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3d0362721f619dfc57c5f75ec006d436b4770a046e773e283b4416ddff426417
[INFO] running `Command { std: "docker" "start" "-a" "3d0362721f619dfc57c5f75ec006d436b4770a046e773e283b4416ddff426417", kill_on_drop: false }`
[INFO] [stderr]    Compiling monkey-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unreachable pattern
[INFO] [stdout]    --> src/parser/mod.rs:145:13
[INFO] [stdout]     |
[INFO] [stdout] 141 | /             Statement::LetStatement {
[INFO] [stdout] 142 | |                 identifier: Identifier { value, .. },
[INFO] [stdout] 143 | |                 ..
[INFO] [stdout] 144 | |             } => assert_eq!(id, &value),
[INFO] [stdout]     | |_____________- matches all the relevant values
[INFO] [stdout] 145 |               _ => panic!("not a let statement"),
[INFO] [stdout]     |               ^ no value can reach this
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `expect_peek` and `peek` are never used
[INFO] [stdout]   --> src/parser/mod.rs:72:8
[INFO] [stdout]    |
[INFO] [stdout] 19 | impl<'a> Parser<'a> {
[INFO] [stdout]    | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 72 |     fn expect_peek(&'a mut self, typ: TokenType) -> Result<&'a Token, ParseError> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     fn peek(&'a mut self) -> Result<&'a Token, ParseError> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: fields `token` and `value` are never read
[INFO] [stdout]   --> src/parser/ast.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 |     LetStatement {
[INFO] [stdout]    |     ------------ fields in this variant
[INFO] [stdout] 13 |         token: tokens::Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout] 14 |         identifier: Identifier,
[INFO] [stdout] 15 |         value: Expression,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Statement` 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 `token` is never read
[INFO] [stdout]   --> src/parser/ast.rs:26:9
[INFO] [stdout]    |
[INFO] [stdout] 25 | pub struct Identifier {
[INFO] [stdout]    |            ---------- field in this struct
[INFO] [stdout] 26 |     pub token: tokens::Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Identifier` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.46s
[INFO] running `Command { std: "docker" "inspect" "3d0362721f619dfc57c5f75ec006d436b4770a046e773e283b4416ddff426417", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3d0362721f619dfc57c5f75ec006d436b4770a046e773e283b4416ddff426417", kill_on_drop: false }`
[INFO] [stdout] 3d0362721f619dfc57c5f75ec006d436b4770a046e773e283b4416ddff426417
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 36bc9434f527d6421e8be2a2adc4fa1bf04dff9f1870fb5eb0ae96511e8d538a
[INFO] running `Command { std: "docker" "start" "-a" "36bc9434f527d6421e8be2a2adc4fa1bf04dff9f1870fb5eb0ae96511e8d538a", kill_on_drop: false }`
[INFO] [stderr] warning: unreachable pattern
[INFO] [stderr]    --> src/parser/mod.rs:145:13
[INFO] [stderr]     |
[INFO] [stderr] 141 | /             Statement::LetStatement {
[INFO] [stderr] 142 | |                 identifier: Identifier { value, .. },
[INFO] [stderr] 143 | |                 ..
[INFO] [stderr] 144 | |             } => assert_eq!(id, &value),
[INFO] [stderr]     | |_____________- matches all the relevant values
[INFO] [stderr] 145 |               _ => panic!("not a let statement"),
[INFO] [stderr]     |               ^ no value can reach this
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unreachable_patterns)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: methods `expect_peek` and `peek` are never used
[INFO] [stderr]   --> src/parser/mod.rs:72:8
[INFO] [stderr]    |
[INFO] [stderr] 19 | impl<'a> Parser<'a> {
[INFO] [stderr]    | ------------------- methods in this implementation
[INFO] [stderr] ...
[INFO] [stderr] 72 |     fn expect_peek(&'a mut self, typ: TokenType) -> Result<&'a Token, ParseError> {
[INFO] [stderr]    |        ^^^^^^^^^^^
[INFO] [stderr] ...
[INFO] [stderr] 84 |     fn peek(&'a mut self) -> Result<&'a Token, ParseError> {
[INFO] [stderr]    |        ^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stderr] 
[INFO] [stderr] warning: fields `token` and `value` are never read
[INFO] [stderr]   --> src/parser/ast.rs:13:9
[INFO] [stderr]    |
[INFO] [stderr] 12 |     LetStatement {
[INFO] [stderr]    |     ------------ fields in this variant
[INFO] [stderr] 13 |         token: tokens::Token,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr] 14 |         identifier: Identifier,
[INFO] [stderr] 15 |         value: Expression,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Statement` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: field `token` is never read
[INFO] [stderr]   --> src/parser/ast.rs:26:9
[INFO] [stderr]    |
[INFO] [stderr] 25 | pub struct Identifier {
[INFO] [stderr]    |            ---------- field in this struct
[INFO] [stderr] 26 |     pub token: tokens::Token,
[INFO] [stderr]    |         ^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `Identifier` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stderr] 
[INFO] [stderr] warning: `monkey-rs` (bin "monkey-rs" test) generated 4 warnings
[INFO] [stderr]     Finished `test` profile [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/monkey_rs-cdf056f07d4b3914)
[INFO] [stdout] 
[INFO] [stdout] running 2 tests
[INFO] [stdout] test parser::tests::test_parse ... ok
[INFO] [stdout] test lexer::tests::test_next_token ... ok
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 2 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "36bc9434f527d6421e8be2a2adc4fa1bf04dff9f1870fb5eb0ae96511e8d538a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "36bc9434f527d6421e8be2a2adc4fa1bf04dff9f1870fb5eb0ae96511e8d538a", kill_on_drop: false }`
[INFO] [stdout] 36bc9434f527d6421e8be2a2adc4fa1bf04dff9f1870fb5eb0ae96511e8d538a
