[INFO] cloning repository https://github.com/brundonsmith/javascript_parser
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/brundonsmith/javascript_parser" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fjavascript_parser", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fjavascript_parser'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2d74006c426503cefd63fb2d315c7850bed02cf3
[INFO] checking brundonsmith/javascript_parser against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fjavascript_parser" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/brundonsmith/javascript_parser
[INFO] finished tweaking git repo https://github.com/brundonsmith/javascript_parser
[INFO] tweaked toml for git repo https://github.com/brundonsmith/javascript_parser written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brundonsmith/javascript_parser on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/brundonsmith/javascript_parser 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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 brundonsmith/javascript_parser against try#446cb600aa4837dd6c513f14fa0d25a909b177d7 for pr-149195
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fbrundonsmith%2Fjavascript_parser" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/brundonsmith/javascript_parser
[INFO] finished tweaking git repo https://github.com/brundonsmith/javascript_parser
[INFO] tweaked toml for git repo https://github.com/brundonsmith/javascript_parser written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/brundonsmith/javascript_parser on toolchain 446cb600aa4837dd6c513f14fa0d25a909b177d7
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/brundonsmith/javascript_parser 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" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "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-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9124bda5ab95448f94e9b40d159c95f835c1c95236b07eaa50f5011e1e537505
[INFO] running `Command { std: "docker" "start" "-a" "9124bda5ab95448f94e9b40d159c95f835c1c95236b07eaa50f5011e1e537505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9124bda5ab95448f94e9b40d159c95f835c1c95236b07eaa50f5011e1e537505", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9124bda5ab95448f94e9b40d159c95f835c1c95236b07eaa50f5011e1e537505", kill_on_drop: false }`
[INFO] [stdout] 9124bda5ab95448f94e9b40d159c95f835c1c95236b07eaa50f5011e1e537505
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:94a0c148923f5b2b52a63ef0eeb1882ad339ab61bce784c8077cbe41c61feb6c" "/opt/rustwide/cargo-home/bin/cargo" "+446cb600aa4837dd6c513f14fa0d25a909b177d7" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7494ef0c2f5f45165719b1f481a9559f5805788e920a856f48ef73fa3aa2a212
[INFO] running `Command { std: "docker" "start" "-a" "7494ef0c2f5f45165719b1f481a9559f5805788e920a856f48ef73fa3aa2a212", kill_on_drop: false }`
[INFO] [stderr]     Checking javascript_parser v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `parser::parse`
[INFO] [stdout]  --> src/serializer.rs:1:13
[INFO] [stdout]   |
[INFO] [stdout] 1 | use crate::{parser::parse, parser_model::{AST, OperatorSide}};
[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 variable: `properties`
[INFO] [stdout]    --> src/parser_model.rs:194:62
[INFO] [stdout]     |
[INFO] [stdout] 194 |             AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                                              ^^^^^^^^^^ help: try ignoring the field: `properties: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:292:17
[INFO] [stdout]     |
[INFO] [stdout] 292 |             let mut constructor = None;
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:334:19
[INFO] [stdout]     |
[INFO] [stdout] 334 |         fn _field(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:334:31
[INFO] [stdout]     |
[INFO] [stdout] 334 |         fn _field(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:337:20
[INFO] [stdout]     |
[INFO] [stdout] 337 |         fn _method(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:337:32
[INFO] [stdout]     |
[INFO] [stdout] 337 |         fn _method(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:340:20
[INFO] [stdout]     |
[INFO] [stdout] 340 |         fn _getter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |         fn _getter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:343:20
[INFO] [stdout]     |
[INFO] [stdout] 343 |         fn _setter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:343:32
[INFO] [stdout]     |
[INFO] [stdout] 343 |         fn _setter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/serializer.rs:308:22
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                      ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constructor`
[INFO] [stdout]    --> src/serializer.rs:308:28
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^ help: try ignoring the field: `constructor: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/serializer.rs:308:41
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                         ^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `methods`
[INFO] [stdout]    --> src/serializer.rs:308:49
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                                 ^^^^^^^ help: try ignoring the field: `methods: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `properties`
[INFO] [stdout]    --> src/serializer.rs:308:58
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                                          ^^^^^^^^^^ help: try ignoring the field: `properties: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `identifier`
[INFO] [stdout]    --> src/serializer.rs:311:27
[INFO] [stdout]     |
[INFO] [stdout] 311 |         AST::ClassField { identifier, expression } => {
[INFO] [stdout]     |                           ^^^^^^^^^^ help: try ignoring the field: `identifier: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expression`
[INFO] [stdout]    --> src/serializer.rs:311:39
[INFO] [stdout]     |
[INFO] [stdout] 311 |         AST::ClassField { identifier, expression } => {
[INFO] [stdout]     |                                       ^^^^^^^^^^ help: try ignoring the field: `expression: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `properties`
[INFO] [stdout]    --> src/parser_model.rs:194:62
[INFO] [stdout]     |
[INFO] [stdout] 194 |             AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                                              ^^^^^^^^^^ help: try ignoring the field: `properties: _`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> src/parser.rs:292:17
[INFO] [stdout]     |
[INFO] [stdout] 292 |             let mut constructor = None;
[INFO] [stdout]     |                 ----^^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:334:19
[INFO] [stdout]     |
[INFO] [stdout] 334 |         fn _field(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                   ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:334:31
[INFO] [stdout]     |
[INFO] [stdout] 334 |         fn _field(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                               ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:337:20
[INFO] [stdout]     |
[INFO] [stdout] 337 |         fn _method(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:337:32
[INFO] [stdout]     |
[INFO] [stdout] 337 |         fn _method(code: &str, index: &mut usize) -> Result<AST, ParseError> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:340:20
[INFO] [stdout]     |
[INFO] [stdout] 340 |         fn _getter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:340:32
[INFO] [stdout]     |
[INFO] [stdout] 340 |         fn _getter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `code`
[INFO] [stdout]    --> src/parser.rs:343:20
[INFO] [stdout]     |
[INFO] [stdout] 343 |         fn _setter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                    ^^^^ help: if this is intentional, prefix it with an underscore: `_code`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `index`
[INFO] [stdout]    --> src/parser.rs:343:32
[INFO] [stdout]     |
[INFO] [stdout] 343 |         fn _setter(code: &str, index: &mut usize) -> Result<(AST, AST), ParseError> {
[INFO] [stdout]     |                                ^^^^^ help: if this is intentional, prefix it with an underscore: `_index`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `name`
[INFO] [stdout]    --> src/serializer.rs:308:22
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                      ^^^^ help: try ignoring the field: `name: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `constructor`
[INFO] [stdout]    --> src/serializer.rs:308:28
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                            ^^^^^^^^^^^ help: try ignoring the field: `constructor: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `fields`
[INFO] [stdout]    --> src/serializer.rs:308:41
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                         ^^^^^^ help: try ignoring the field: `fields: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `methods`
[INFO] [stdout]    --> src/serializer.rs:308:49
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                                 ^^^^^^^ help: try ignoring the field: `methods: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `properties`
[INFO] [stdout]    --> src/serializer.rs:308:58
[INFO] [stdout]     |
[INFO] [stdout] 308 |         AST::Class { name, constructor, fields, methods, properties } => {
[INFO] [stdout]     |                                                          ^^^^^^^^^^ help: try ignoring the field: `properties: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `identifier`
[INFO] [stdout]    --> src/serializer.rs:311:27
[INFO] [stdout]     |
[INFO] [stdout] 311 |         AST::ClassField { identifier, expression } => {
[INFO] [stdout]     |                           ^^^^^^^^^^ help: try ignoring the field: `identifier: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `expression`
[INFO] [stdout]    --> src/serializer.rs:311:39
[INFO] [stdout]     |
[INFO] [stdout] 311 |         AST::ClassField { identifier, expression } => {
[INFO] [stdout]     |                                       ^^^^^^^^^^ help: try ignoring the field: `expression: _`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.18s
[INFO] running `Command { std: "docker" "inspect" "7494ef0c2f5f45165719b1f481a9559f5805788e920a856f48ef73fa3aa2a212", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7494ef0c2f5f45165719b1f481a9559f5805788e920a856f48ef73fa3aa2a212", kill_on_drop: false }`
[INFO] [stdout] 7494ef0c2f5f45165719b1f481a9559f5805788e920a856f48ef73fa3aa2a212
