[INFO] cloning repository https://github.com/TheForgivenOne/elang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/TheForgivenOne/elang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheForgivenOne%2Felang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheForgivenOne%2Felang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2a9ddb4ff1c017a44c1231b1d9f34bea543ffae2
[INFO] checking TheForgivenOne/elang against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheForgivenOne%2Felang" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/TheForgivenOne/elang
[INFO] finished tweaking git repo https://github.com/TheForgivenOne/elang
[INFO] tweaked toml for git repo https://github.com/TheForgivenOne/elang written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TheForgivenOne/elang on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TheForgivenOne/elang 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "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 TheForgivenOne/elang against try#e622d8d7bed4f2668d446e06c6c1436ecae15796 for pr-156776
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FTheForgivenOne%2Felang" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking git repo https://github.com/TheForgivenOne/elang
[INFO] finished tweaking git repo https://github.com/TheForgivenOne/elang
[INFO] tweaked toml for git repo https://github.com/TheForgivenOne/elang written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/TheForgivenOne/elang on toolchain e622d8d7bed4f2668d446e06c6c1436ecae15796
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/TheForgivenOne/elang 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" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "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-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 289148a9cd1a8703d958b5a4270f2c31d7a30d91df84412166745b6cc15f7b0b
[INFO] running `Command { std: "docker" "start" "-a" "289148a9cd1a8703d958b5a4270f2c31d7a30d91df84412166745b6cc15f7b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "289148a9cd1a8703d958b5a4270f2c31d7a30d91df84412166745b6cc15f7b0b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "289148a9cd1a8703d958b5a4270f2c31d7a30d91df84412166745b6cc15f7b0b", kill_on_drop: false }`
[INFO] [stdout] 289148a9cd1a8703d958b5a4270f2c31d7a30d91df84412166745b6cc15f7b0b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+e622d8d7bed4f2668d446e06c6c1436ecae15796" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 07240eea09da60e61af1cabd60810fc0905dff229462b81a6d637a4f69a586a6
[INFO] running `Command { std: "docker" "start" "-a" "07240eea09da60e61af1cabd60810fc0905dff229462b81a6d637a4f69a586a6", kill_on_drop: false }`
[INFO] [stderr]     Checking elang v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `expr::Interpreter`
[INFO] [stdout]  --> src/interpreter/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use expr::Interpreter;
[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: `expr::Interpreter`
[INFO] [stdout]  --> src/interpreter/mod.rs:7:9
[INFO] [stdout]   |
[INFO] [stdout] 7 | pub use expr::Interpreter;
[INFO] [stdout]   |         ^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `Val` is never used
[INFO] [stdout]  --> src/interpreter/expr.rs:6:10
[INFO] [stdout]   |
[INFO] [stdout] 6 | pub enum Val {
[INFO] [stdout]   |          ^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Interpreter` is never constructed
[INFO] [stdout]   --> src/interpreter/expr.rs:28:12
[INFO] [stdout]    |
[INFO] [stdout] 28 | pub struct Interpreter {
[INFO] [stdout]    |            ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple associated items are never used
[INFO] [stdout]    --> src/interpreter/expr.rs:36:12
[INFO] [stdout]     |
[INFO] [stdout]  35 | impl Interpreter {
[INFO] [stdout]     | ---------------- associated items in this implementation
[INFO] [stdout]  36 |     pub fn new() -> Self {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout]  45 |     pub fn child(env: &Interpreter) -> Self {
[INFO] [stdout]     |            ^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  54 |     pub fn declare(&mut self, name: String, value: Val) {
[INFO] [stdout]     |            ^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  58 |     pub fn lookup(&self, name: &str) -> Option<&Val> {
[INFO] [stdout]     |            ^^^^^^
[INFO] [stdout] ...
[INFO] [stdout]  64 |     pub fn eval_expr(&mut self, expr: &Expr) -> Result<Val, ElangError> {
[INFO] [stdout]     |            ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 150 |     pub fn exec_block(&mut self, stmts: &[Statement]) -> Result<Val, ElangError> {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 194 |     pub fn run(&mut self, program: &Program) -> Result<Val, ElangError> {
[INFO] [stdout]     |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 201 |     pub fn make_error(&self, msg: &str) -> ElangError {
[INFO] [stdout]     |            ^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 209 |     pub fn eval_str_interp(&mut self, template: &str) -> String {
[INFO] [stdout]     |            ^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 243 |     fn eval_interp_segment(&mut self, content: &str) -> String {
[INFO] [stdout]     |        ^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 262 |     fn get_field(&self, obj: &Val, field: &str) -> Result<Val, ElangError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 269 |     fn get_index(&self, obj: &Val, idx: &Val) -> Result<Val, ElangError> {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `apply_binop` is never used
[INFO] [stdout]    --> src/interpreter/expr.rs:280:4
[INFO] [stdout]     |
[INFO] [stdout] 280 | fn apply_binop(
[INFO] [stdout]     |    ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `line` is never used
[INFO] [stdout]    --> src/interpreter/expr.rs:355:12
[INFO] [stdout]     |
[INFO] [stdout] 354 | impl Expr {
[INFO] [stdout]     | --------- method in this implementation
[INFO] [stdout] 355 |     pub fn line(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `line` is never used
[INFO] [stdout]    --> src/interpreter/expr.rs:379:12
[INFO] [stdout]     |
[INFO] [stdout] 378 | impl Statement {
[INFO] [stdout]     | -------------- method in this implementation
[INFO] [stdout] 379 |     pub fn line(&self) -> usize {
[INFO] [stdout]     |            ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `create_instance` is never used
[INFO] [stdout]  --> src/interpreter/oop.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn create_instance(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bind_method` is never used
[INFO] [stdout]   --> src/interpreter/oop.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn bind_method(
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `msg_with_line` is never used
[INFO] [stdout]   --> src/errors.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn msg_with_line(e: &ElangError) -> (String, Option<usize>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `body`
[INFO] [stdout]     --> src/parser.rs:1255:30
[INFO] [stdout]      |
[INFO] [stdout] 1255 |             Statement::Try { body, catches, .. } => {
[INFO] [stdout]      |                              ^^^^ help: try ignoring the field: `body: _`
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `assert_tokens` is never used
[INFO] [stdout]    --> src/lexer.rs:414:8
[INFO] [stdout]     |
[INFO] [stdout] 414 |     fn assert_tokens(source: &str, expected: Vec<TokenKind>) {
[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 `is_async` and `is_pure` are never read
[INFO] [stdout]   --> src/interpreter/expr.rs:18:9
[INFO] [stdout]    |
[INFO] [stdout] 14 |     Fn {
[INFO] [stdout]    |     -- fields in this variant
[INFO] [stdout] ...
[INFO] [stdout] 18 |         is_async: bool,
[INFO] [stdout]    |         ^^^^^^^^
[INFO] [stdout] 19 |         is_pure: bool,
[INFO] [stdout]    |         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Val` 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 `Native` is never constructed
[INFO] [stdout]   --> src/interpreter/expr.rs:21:5
[INFO] [stdout]    |
[INFO] [stdout]  6 | pub enum Val {
[INFO] [stdout]    |          --- variant in this enum
[INFO] [stdout] ...
[INFO] [stdout] 21 |     Native {
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Val` 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 `create_instance` is never used
[INFO] [stdout]  --> src/interpreter/oop.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn create_instance(
[INFO] [stdout]   |        ^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `bind_method` is never used
[INFO] [stdout]   --> src/interpreter/oop.rs:21:8
[INFO] [stdout]    |
[INFO] [stdout] 21 | pub fn bind_method(
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function `msg_with_line` is never used
[INFO] [stdout]   --> src/errors.rs:40:4
[INFO] [stdout]    |
[INFO] [stdout] 40 | fn msg_with_line(e: &ElangError) -> (String, Option<usize>) {
[INFO] [stdout]    |    ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.86s
[INFO] running `Command { std: "docker" "inspect" "07240eea09da60e61af1cabd60810fc0905dff229462b81a6d637a4f69a586a6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "07240eea09da60e61af1cabd60810fc0905dff229462b81a6d637a4f69a586a6", kill_on_drop: false }`
[INFO] [stdout] 07240eea09da60e61af1cabd60810fc0905dff229462b81a6d637a4f69a586a6