[INFO] cloning repository https://github.com/jeferson-sb/silly-inter
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/jeferson-sb/silly-inter" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeferson-sb%2Fsilly-inter", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeferson-sb%2Fsilly-inter'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 854504b0bad3ca2d8b0072cdae28b8f94ff5e0ba
[INFO] building jeferson-sb/silly-inter against try#9b5e8b16bd1c4acf4cf8e6880368314cf021a987+rustflags=-Dtail-expr-drop-order for pr-134523
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjeferson-sb%2Fsilly-inter" "/workspace/builds/worker-1-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/jeferson-sb/silly-inter on toolchain 9b5e8b16bd1c4acf4cf8e6880368314cf021a987
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/jeferson-sb/silly-inter
[INFO] finished tweaking git repo https://github.com/jeferson-sb/silly-inter
[INFO] tweaked toml for git repo https://github.com/jeferson-sb/silly-inter written to /workspace/builds/worker-1-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/jeferson-sb/silly-inter 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" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 0af1ec07e5aa80bdcbbdab7fd594821166bbcc7d70f6c2eaa01c0e92d23932c9
[INFO] running `Command { std: "docker" "start" "-a" "0af1ec07e5aa80bdcbbdab7fd594821166bbcc7d70f6c2eaa01c0e92d23932c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "0af1ec07e5aa80bdcbbdab7fd594821166bbcc7d70f6c2eaa01c0e92d23932c9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "0af1ec07e5aa80bdcbbdab7fd594821166bbcc7d70f6c2eaa01c0e92d23932c9", kill_on_drop: false }`
[INFO] [stdout] 0af1ec07e5aa80bdcbbdab7fd594821166bbcc7d70f6c2eaa01c0e92d23932c9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6d4938ef8384822bc0b9c209f5eb734029b3b74d88fde0ddf85edffff97b3279
[INFO] running `Command { std: "docker" "start" "-a" "6d4938ef8384822bc0b9c209f5eb734029b3b74d88fde0ddf85edffff97b3279", kill_on_drop: false }`
[INFO] [stderr]    Compiling silly-inter v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `std::rc::Rc`
[INFO] [stdout]  --> src/main.rs:1:5
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::rc::Rc;
[INFO] [stdout]   |     ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `BuiltinTypeSymbol`, `ScopedSymbolTable`, `Symbol`, and `VarSymbol`
[INFO] [stdout]  --> src/main.rs:9:14
[INFO] [stdout]   |
[INFO] [stdout] 9 |     symbol::{BuiltinTypeSymbol, ScopedSymbolTable, SemanticAnalyzer, Symbol, VarSymbol},
[INFO] [stdout]   |              ^^^^^^^^^^^^^^^^^  ^^^^^^^^^^^^^^^^^                    ^^^^^^  ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `symbol::ScopedSymbolTable`
[INFO] [stdout]  --> src/interpr.rs:3:37
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::{ast::*, parser::Parser, symbol::ScopedSymbolTable, token::TokenType};
[INFO] [stdout]   |                                     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `TokenType` and `Token`
[INFO] [stdout]   --> src/main.rs:53:24
[INFO] [stdout]    |
[INFO] [stdout] 53 |     use crate::token::{Token, TokenType};
[INFO] [stdout]    |                        ^^^^^  ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: if this is a test module, consider adding a `#[cfg(test)]` to the containing module
[INFO] [stdout]   --> src/main.rs:52:1
[INFO] [stdout]    |
[INFO] [stdout] 52 | mod tests {
[INFO] [stdout]    | ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/interpr.rs:103:29
[INFO] [stdout]     |
[INFO] [stdout] 103 |     fn visit_vardecl(&self, node: &VarDecl) -> i64 {
[INFO] [stdout]     |                             ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/interpr.rs:107:26
[INFO] [stdout]     |
[INFO] [stdout] 107 |     fn visit_type(&self, node: &Type) -> i64 {
[INFO] [stdout]     |                          ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var_symbol`
[INFO] [stdout]    --> src/symbol.rs:220:13
[INFO] [stdout]     |
[INFO] [stdout] 220 |         let var_symbol = self
[INFO] [stdout]     |             ^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_var_symbol`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `var`
[INFO] [stdout]    --> src/symbol.rs:230:25
[INFO] [stdout]     |
[INFO] [stdout] 230 |         if let AST::Var(var) = &node.left {
[INFO] [stdout]     |                         ^^^ help: if this is intentional, prefix it with an underscore: `_var`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/symbol.rs:242:30
[INFO] [stdout]     |
[INFO] [stdout] 242 |     pub fn visit_noop(&self, node: &NoOp) -> i64 {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `node`
[INFO] [stdout]    --> src/symbol.rs:246:30
[INFO] [stdout]     |
[INFO] [stdout] 246 |     pub fn visit_type(&self, node: &Type) -> i64 {
[INFO] [stdout]     |                              ^^^^ help: if this is intentional, prefix it with an underscore: `_node`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:27:9
[INFO] [stdout]    |
[INFO] [stdout] 26 | pub struct Number {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 27 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Number` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `token` is never read
[INFO] [stdout]   --> src/ast.rs:52:9
[INFO] [stdout]    |
[INFO] [stdout] 51 | pub struct Type {
[INFO] [stdout]    |            ---- field in this struct
[INFO] [stdout] 52 |     pub token: Token,
[INFO] [stdout]    |         ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Type` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `name` is never read
[INFO] [stdout]   --> src/ast.rs:58:9
[INFO] [stdout]    |
[INFO] [stdout] 57 | pub struct Program {
[INFO] [stdout]    |            ------- field in this struct
[INFO] [stdout] 58 |     pub name: String,
[INFO] [stdout]    |         ^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Program` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `op` is never read
[INFO] [stdout]   --> src/ast.rs:65:9
[INFO] [stdout]    |
[INFO] [stdout] 63 | pub struct Assign {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 64 |     pub left: AST,
[INFO] [stdout] 65 |     pub op: Token,
[INFO] [stdout]    |         ^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Assign` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `Param` is never constructed
[INFO] [stdout]   --> src/ast.rs:95:5
[INFO] [stdout]    |
[INFO] [stdout] 83 | pub enum AST {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 95 |     Param(Box<Param>),
[INFO] [stdout]    |     ^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `AST` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `parser` is never read
[INFO] [stdout]   --> src/interpr.rs:13:9
[INFO] [stdout]    |
[INFO] [stdout] 12 | pub struct Interpreter {
[INFO] [stdout]    |            ----------- field in this struct
[INFO] [stdout] 13 |     pub parser: Parser,
[INFO] [stdout]    |         ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new` and `interpret` are never used
[INFO] [stdout]   --> src/interpr.rs:18:12
[INFO] [stdout]    |
[INFO] [stdout] 17 | impl Interpreter {
[INFO] [stdout]    | ---------------- associated items in this implementation
[INFO] [stdout] 18 |     pub fn new(parser: Parser) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 25 |     pub fn interpret(&mut self) -> i64 {
[INFO] [stdout]    |            ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `symbol_type` is never read
[INFO] [stdout]   --> src/symbol.rs:15:9
[INFO] [stdout]    |
[INFO] [stdout] 13 | pub struct Symbol {
[INFO] [stdout]    |            ------ field in this struct
[INFO] [stdout] 14 |     pub name: String,
[INFO] [stdout] 15 |     pub symbol_type: Option<Rc<dyn SymbolTrait>>,
[INFO] [stdout]    |         ^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbol` has a derived impl for the trait `Debug`, but this is intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/symbol.rs:19:12
[INFO] [stdout]    |
[INFO] [stdout] 18 | impl Symbol {
[INFO] [stdout]    | ----------- associated function in this implementation
[INFO] [stdout] 19 |     pub fn new(name: String, symbol_type: Option<Rc<dyn SymbolTrait>>) -> Self {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field `var_type` is never read
[INFO] [stdout]   --> src/symbol.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 48 | pub struct VarSymbol {
[INFO] [stdout]    |            --------- field in this struct
[INFO] [stdout] 49 |     pub name: String,
[INFO] [stdout] 50 |     pub var_type: Rc<dyn SymbolTrait>,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `VarSymbol` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant `DIV` is never constructed
[INFO] [stdout]  --> src/token.rs:8:5
[INFO] [stdout]   |
[INFO] [stdout] 3 | pub enum TokenType {
[INFO] [stdout]   |          --------- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 8 |     DIV,
[INFO] [stdout]   |     ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `TokenType` has derived impls for the traits `Clone` and `Debug`, but these are intentionally ignored during dead code analysis
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interpret_expr` is never used
[INFO] [stdout]   --> src/main.rs:58:8
[INFO] [stdout]    |
[INFO] [stdout] 58 |     fn interpret_expr(input: String) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `interpret` is never used
[INFO] [stdout]   --> src/main.rs:65:8
[INFO] [stdout]    |
[INFO] [stdout] 65 |     fn interpret(input: String) -> i64 {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.73s
[INFO] running `Command { std: "docker" "inspect" "6d4938ef8384822bc0b9c209f5eb734029b3b74d88fde0ddf85edffff97b3279", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6d4938ef8384822bc0b9c209f5eb734029b3b74d88fde0ddf85edffff97b3279", kill_on_drop: false }`
[INFO] [stdout] 6d4938ef8384822bc0b9c209f5eb734029b3b74d88fde0ddf85edffff97b3279
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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 -Dtail-expr-drop-order" "-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:f3a9d4ad9d972b27faf3965f35b62e55ba32bbce8f20bc8fe909558a86702fde" "/opt/rustwide/cargo-home/bin/cargo" "+9b5e8b16bd1c4acf4cf8e6880368314cf021a987" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] aa3195e284f962d1e50185f2fcef021f2d9c384011fcd64498238bb4bd203d2d
[INFO] running `Command { std: "docker" "start" "-a" "aa3195e284f962d1e50185f2fcef021f2d9c384011fcd64498238bb4bd203d2d", kill_on_drop: false }`
[INFO] [stderr] Error response from daemon: write /var/lib/docker/containers/aa3195e284f962d1e50185f2fcef021f2d9c384011fcd64498238bb4bd203d2d/hostname: no space left on device
[INFO] running `Command { std: "docker" "inspect" "aa3195e284f962d1e50185f2fcef021f2d9c384011fcd64498238bb4bd203d2d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3195e284f962d1e50185f2fcef021f2d9c384011fcd64498238bb4bd203d2d", kill_on_drop: false }`
[INFO] [stdout] aa3195e284f962d1e50185f2fcef021f2d9c384011fcd64498238bb4bd203d2d