[INFO] cloning repository https://github.com/takechiyo-19940627/js-compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/takechiyo-19940627/js-compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakechiyo-19940627%2Fjs-compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakechiyo-19940627%2Fjs-compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 80bc120379988425c5afea21cc5aec415e39d9b0
[INFO] checking takechiyo-19940627/js-compiler against try#87f2ecc56b5f6032b075c8934ebc77f28d57183c for pr-148190
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Ftakechiyo-19940627%2Fjs-compiler" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/takechiyo-19940627/js-compiler
[INFO] finished tweaking git repo https://github.com/takechiyo-19940627/js-compiler
[INFO] tweaked toml for git repo https://github.com/takechiyo-19940627/js-compiler written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/takechiyo-19940627/js-compiler on toolchain 87f2ecc56b5f6032b075c8934ebc77f28d57183c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/takechiyo-19940627/js-compiler 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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "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-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 51ce2a7d3a625f8afa46bb21f5c5b339e74a8ba3786983ddf4ab5920ae6c4f31
[INFO] running `Command { std: "docker" "start" "-a" "51ce2a7d3a625f8afa46bb21f5c5b339e74a8ba3786983ddf4ab5920ae6c4f31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "51ce2a7d3a625f8afa46bb21f5c5b339e74a8ba3786983ddf4ab5920ae6c4f31", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "51ce2a7d3a625f8afa46bb21f5c5b339e74a8ba3786983ddf4ab5920ae6c4f31", kill_on_drop: false }`
[INFO] [stdout] 51ce2a7d3a625f8afa46bb21f5c5b339e74a8ba3786983ddf4ab5920ae6c4f31
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "+87f2ecc56b5f6032b075c8934ebc77f28d57183c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cb2c42cf2fccd9dcf703458ac869244149b166b59f08854af8bc58a9c9f154a2
[INFO] running `Command { std: "docker" "start" "-a" "cb2c42cf2fccd9dcf703458ac869244149b166b59f08854af8bc58a9c9f154a2", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.95
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling syn v2.0.104
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking js-compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `task::Context`
[INFO] [stdout]  --> src/main.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{str::Chars, task::Context};
[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: `kind`
[INFO] [stdout]    --> src/main.rs:211:24
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn bump(&mut self, kind: Kind) {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `match_keyward` are never used
[INFO] [stdout]   --> src/main.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl<'a> Lexer<'a>  {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn peek(&self) -> Option<char> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     fn match_keyward(&self, ident: &str) -> Kind {
[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 `lexer` and `prev_token_end` are never read
[INFO] [stdout]    --> src/main.rs:161:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Parser<'a> {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 161 |     lexer: Lexer<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     prev_token_end: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/main.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 195 |     fn finish_node(&self, node: Node) -> Node {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |     fn cur_token(&self) -> &Token {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     fn at(&self, kind: Kind) -> bool {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn bump(&mut self, kind: Kind) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn bump_any(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn eat(&mut self, kind: Kind) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 227 |     fn advance(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `task::Context`
[INFO] [stdout]  --> src/main.rs:2:23
[INFO] [stdout]   |
[INFO] [stdout] 2 | use std::{str::Chars, task::Context};
[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: `kind`
[INFO] [stdout]    --> src/main.rs:211:24
[INFO] [stdout]     |
[INFO] [stdout] 211 |     fn bump(&mut self, kind: Kind) {
[INFO] [stdout]     |                        ^^^^ help: if this is intentional, prefix it with an underscore: `_kind`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: methods `peek` and `match_keyward` are never used
[INFO] [stdout]   --> src/main.rs:85:8
[INFO] [stdout]    |
[INFO] [stdout] 50 | impl<'a> Lexer<'a>  {
[INFO] [stdout]    | ------------------ methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 85 |     fn peek(&self) -> Option<char> {
[INFO] [stdout]    |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 89 |     fn match_keyward(&self, ident: &str) -> Kind {
[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 `lexer` and `prev_token_end` are never read
[INFO] [stdout]    --> src/main.rs:161:5
[INFO] [stdout]     |
[INFO] [stdout] 157 | pub struct Parser<'a> {
[INFO] [stdout]     |            ------ fields in this struct
[INFO] [stdout] ...
[INFO] [stdout] 161 |     lexer: Lexer<'a>,
[INFO] [stdout]     |     ^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 167 |     prev_token_end: usize,
[INFO] [stdout]     |     ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: multiple methods are never used
[INFO] [stdout]    --> src/main.rs:195:8
[INFO] [stdout]     |
[INFO] [stdout] 170 | impl<'a> Parser<'a> {
[INFO] [stdout]     | ------------------- methods in this implementation
[INFO] [stdout] ...
[INFO] [stdout] 195 |     fn finish_node(&self, node: Node) -> Node {
[INFO] [stdout]     |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 199 |     fn cur_token(&self) -> &Token {
[INFO] [stdout]     |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 207 |     fn at(&self, kind: Kind) -> bool {
[INFO] [stdout]     |        ^^
[INFO] [stdout] ...
[INFO] [stdout] 211 |     fn bump(&mut self, kind: Kind) {
[INFO] [stdout]     |        ^^^^
[INFO] [stdout] ...
[INFO] [stdout] 215 |     fn bump_any(&mut self) {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 219 |     fn eat(&mut self, kind: Kind) -> bool {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 227 |     fn advance(&mut self) {
[INFO] [stdout]     |        ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 9.50s
[INFO] running `Command { std: "docker" "inspect" "cb2c42cf2fccd9dcf703458ac869244149b166b59f08854af8bc58a9c9f154a2", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb2c42cf2fccd9dcf703458ac869244149b166b59f08854af8bc58a9c9f154a2", kill_on_drop: false }`
[INFO] [stdout] cb2c42cf2fccd9dcf703458ac869244149b166b59f08854af8bc58a9c9f154a2
