[INFO] cloning repository https://github.com/trevarj/roxt
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/trevarj/roxt" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevarj%2Froxt", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevarj%2Froxt'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 01dba387a9df83688586280d208da54a6b55726f
[INFO] testing trevarj/roxt against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-7
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftrevarj%2Froxt" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/trevarj/roxt
[INFO] finished tweaking git repo https://github.com/trevarj/roxt
[INFO] tweaked toml for git repo https://github.com/trevarj/roxt written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/trevarj/roxt 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/trevarj/roxt 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] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded argh_derive v0.1.1
[INFO] [stderr]   Downloaded argh_shared v0.1.1
[INFO] [stderr]   Downloaded anyhow v1.0.31
[INFO] [stderr]   Downloaded argh v0.1.3
[INFO] [stderr]   Downloaded syn v1.0.34
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] ab028e230148a351b93037f6a26677b6591b990c6e8ba3c2a7648581bdb6e716
[INFO] running `Command { std: "docker" "start" "-a" "ab028e230148a351b93037f6a26677b6591b990c6e8ba3c2a7648581bdb6e716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "ab028e230148a351b93037f6a26677b6591b990c6e8ba3c2a7648581bdb6e716", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ab028e230148a351b93037f6a26677b6591b990c6e8ba3c2a7648581bdb6e716", kill_on_drop: false }`
[INFO] [stdout] ab028e230148a351b93037f6a26677b6591b990c6e8ba3c2a7648581bdb6e716
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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] b9f18b8b586c79e83c7c43cac5c4e8584b46b6f58ebe6ecdfee4f6b7f6596329
[INFO] running `Command { std: "docker" "start" "-a" "b9f18b8b586c79e83c7c43cac5c4e8584b46b6f58ebe6ecdfee4f6b7f6596329", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.19
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling syn v1.0.34
[INFO] [stderr]    Compiling unicode-segmentation v1.6.0
[INFO] [stderr]    Compiling argh_shared v0.1.1
[INFO] [stderr]    Compiling anyhow v1.0.31
[INFO] [stderr]    Compiling heck v0.3.1
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]    Compiling argh_derive v0.1.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.20
[INFO] [stderr]    Compiling argh v0.1.3
[INFO] [stderr]    Compiling thiserror v1.0.20
[INFO] [stderr]    Compiling roxt v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `super::tokens::TokenType`
[INFO] [stdout]  --> src/interpreter/resolver.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use super::tokens::TokenType;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `peekable_next_if` has been stable since 1.51.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/interpreter/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(peekable_next_if)]
[INFO] [stdout]   |            ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `InterpretError`
[INFO] [stdout]  --> src/bytecode/main.rs:8:10
[INFO] [stdout]   |
[INFO] [stdout] 8 | use vm::{InterpretError, VM};
[INFO] [stdout]   |          ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::convert::TryInto`
[INFO] [stdout]  --> src/bytecode/compiler.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 8 | use std::convert::TryInto;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `UpValue`
[INFO] [stdout]  --> src/bytecode/vm.rs:4:26
[INFO] [stdout]   |
[INFO] [stdout] 4 |     compiler::{Compiler, UpValue},
[INFO] [stdout]   |                          ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0635]: unknown feature `drain_filter`
[INFO] [stdout]  --> src/bytecode/main.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(drain_filter)]
[INFO] [stdout]   |            ^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `op` is never read
[INFO] [stdout]   --> src/interpreter/interpreter.rs:14:23
[INFO] [stdout]    |
[INFO] [stdout] 14 |     InvalidOperator { op: TokenType },
[INFO] [stdout]    |                       ^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `id`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:180:39
[INFO] [stdout]     |
[INFO] [stdout] 180 |                 if let Atom::Function(id, params, stmt, closure) = callee {
[INFO] [stdout]     |                                       ^^ help: if this is intentional, prefix it with an underscore: `_id`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `env`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:256:9
[INFO] [stdout]     |
[INFO] [stdout] 256 |         env: &Env,
[INFO] [stdout]     |         ^^^ help: if this is intentional, prefix it with an underscore: `_env`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `a`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:413:35
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stdout]     |                                   ^ help: if this is intentional, prefix it with an underscore: `_a`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `b`
[INFO] [stdout]    --> src/interpreter/interpreter.rs:413:59
[INFO] [stdout]     |
[INFO] [stdout] 413 |                 (Atom::Identifier(a, _), Atom::Identifier(b, _)) => todo!(),
[INFO] [stdout]     |                                                           ^ help: if this is intentional, prefix it with an underscore: `_b`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]   --> src/interpreter/resolver.rs:76:31
[INFO] [stdout]    |
[INFO] [stdout] 76 |             Expr::Binary(lhs, op, rhs) => {
[INFO] [stdout]    |                               ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `op`
[INFO] [stdout]    --> src/interpreter/resolver.rs:136:38
[INFO] [stdout]     |
[INFO] [stdout] 136 |             if let Expr::Binary(lhs, op, rhs) = expr {
[INFO] [stdout]     |                                      ^^ help: if this is intentional, prefix it with an underscore: `_op`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UnsupportedAssignment` is never constructed
[INFO] [stdout]   --> src/interpreter/interpreter.rs:20:5
[INFO] [stdout]    |
[INFO] [stdout] 10 | pub enum RuntimeError {
[INFO] [stdout]    |          ------------ variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 20 |     UnsupportedAssignment { type_a: String, type_b: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `RuntimeError` 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: variant `SyntaxError` is never constructed
[INFO] [stdout]  --> src/interpreter/parser.rs:9:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | enum ParseError {
[INFO] [stdout]   |      ---------- variant in this enum
[INFO] [stdout] 8 |     #[error("Syntax error found.")]
[INFO] [stdout] 9 |     SyntaxError,
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `ParseError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `UsingVarInOwnInitializer` is never constructed
[INFO] [stdout]   --> src/interpreter/resolver.rs:13:5
[INFO] [stdout]    |
[INFO] [stdout] 11 | pub enum ResolverError {
[INFO] [stdout]    |          ------------- variant in this enum
[INFO] [stdout] 12 |     #[error("Cannot read local variable {id:?} in its own initializer.")]
[INFO] [stdout] 13 |     UsingVarInOwnInitializer { id: String },
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `ResolverError` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]    --> src/bytecode/compiler.rs:143:47
[INFO] [stdout]     |
[INFO] [stdout] 143 |     fn make_constant(&mut self, value: Value, line: usize) -> Result<usize, CompilerError> {
[INFO] [stdout]     |                                               ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]    --> src/bytecode/compiler.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]    --> src/bytecode/compiler.rs:387:32
[INFO] [stdout]     |
[INFO] [stdout] 387 |             for (ident, depth, is_captured) in self.state.locals.iter().rev() {
[INFO] [stdout]     |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `line`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1013:13
[INFO] [stdout]      |
[INFO] [stdout] 1013 |         let line = self.peek()?.line();
[INFO] [stdout]      |             ^^^^ help: if this is intentional, prefix it with an underscore: `_line`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `is_captured`
[INFO] [stdout]     --> src/bytecode/compiler.rs:1028:32
[INFO] [stdout]      |
[INFO] [stdout] 1028 |     for (idx, (l_ident, depth, is_captured)) in locals.iter().enumerate().rev() {
[INFO] [stdout]      |                                ^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_is_captured`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: value assigned to `line` is never read
[INFO] [stdout]   --> src/bytecode/vm.rs:45:9
[INFO] [stdout]    |
[INFO] [stdout] 45 |         line: usize,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = help: maybe it is overwritten before being read?
[INFO] [stdout]    = note: `#[warn(unused_assignments)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `roxt` (bin "roxtc") due to 1 previous error; 9 warnings emitted
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "b9f18b8b586c79e83c7c43cac5c4e8584b46b6f58ebe6ecdfee4f6b7f6596329", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b9f18b8b586c79e83c7c43cac5c4e8584b46b6f58ebe6ecdfee4f6b7f6596329", kill_on_drop: false }`
[INFO] [stdout] b9f18b8b586c79e83c7c43cac5c4e8584b46b6f58ebe6ecdfee4f6b7f6596329
