[INFO] cloning repository https://github.com/shantanugoel/monkey-rs
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/shantanugoel/monkey-rs" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanugoel%2Fmonkey-rs", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanugoel%2Fmonkey-rs'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 454c38cc87687f9350d09be5197f8af746b7097a
[INFO] checking shantanugoel/monkey-rs against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanugoel%2Fmonkey-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shantanugoel/monkey-rs
[INFO] finished tweaking git repo https://github.com/shantanugoel/monkey-rs
[INFO] tweaked toml for git repo https://github.com/shantanugoel/monkey-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shantanugoel/monkey-rs on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shantanugoel/monkey-rs 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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 shantanugoel/monkey-rs against try#1baf923b9c3a455162afe43e18647f494c1a4b73 for pr-151510
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fshantanugoel%2Fmonkey-rs" "/workspace/builds/worker-3-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/shantanugoel/monkey-rs
[INFO] finished tweaking git repo https://github.com/shantanugoel/monkey-rs
[INFO] tweaked toml for git repo https://github.com/shantanugoel/monkey-rs written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/shantanugoel/monkey-rs on toolchain 1baf923b9c3a455162afe43e18647f494c1a4b73
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/shantanugoel/monkey-rs 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" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8225e92d758ec290077f01f4e9f00fcfb58db35699776dacfda17bb8f6f77d04
[INFO] running `Command { std: "docker" "start" "-a" "8225e92d758ec290077f01f4e9f00fcfb58db35699776dacfda17bb8f6f77d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8225e92d758ec290077f01f4e9f00fcfb58db35699776dacfda17bb8f6f77d04", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8225e92d758ec290077f01f4e9f00fcfb58db35699776dacfda17bb8f6f77d04", kill_on_drop: false }`
[INFO] [stdout] 8225e92d758ec290077f01f4e9f00fcfb58db35699776dacfda17bb8f6f77d04
[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@sha256:98afbf2d16093dec2546ff8915fddc74e65664aa03fc460b3712b1c2c54a33e4" "/opt/rustwide/cargo-home/bin/cargo" "+1baf923b9c3a455162afe43e18647f494c1a4b73" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 393f1746402f0f206373d4a40475ff1c24d8b25a9bd8f4f95955099448838955
[INFO] running `Command { std: "docker" "start" "-a" "393f1746402f0f206373d4a40475ff1c24d8b25a9bd8f4f95955099448838955", kill_on_drop: false }`
[INFO] [stderr]     Checking monkey-rs v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `u64`
[INFO] [stdout]  --> src/lexer.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{u64, usize};
[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: `self`
[INFO] [stdout]  --> src/lexer.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{self, TokenType};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `u64`
[INFO] [stdout]  --> src/lexer.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{u64, usize};
[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: `self`
[INFO] [stdout]  --> src/lexer.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{self, TokenType};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]  --> src/lexer.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Lexer {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_char`, and `next_token` are never used
[INFO] [stdout]   --> src/lexer.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Lexer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(input: String) -> Lexer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn read_char(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn next_token(&mut self) -> TokenType {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `u64`
[INFO] [stdout]  --> src/lexer.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{u64, usize};
[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: `self`
[INFO] [stdout]  --> src/lexer.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{self, TokenType};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `u64`
[INFO] [stdout]  --> src/lexer.rs:1:11
[INFO] [stdout]   |
[INFO] [stdout] 1 | use std::{u64, usize};
[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: `self`
[INFO] [stdout]  --> src/lexer.rs:3:20
[INFO] [stdout]   |
[INFO] [stdout] 3 | use crate::token::{self, TokenType};
[INFO] [stdout]   |                    ^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Lexer` is never constructed
[INFO] [stdout]  --> src/lexer.rs:5:8
[INFO] [stdout]   |
[INFO] [stdout] 5 | struct Lexer {
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` (part of `#[warn(unused)]`) on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `read_char`, and `next_token` are never used
[INFO] [stdout]   --> src/lexer.rs:13:12
[INFO] [stdout]    |
[INFO] [stdout] 12 | impl Lexer {
[INFO] [stdout]    | ---------- associated items in this implementation
[INFO] [stdout] 13 |     pub fn new(input: String) -> Lexer {
[INFO] [stdout]    |            ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn read_char(&mut self) {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 32 |     fn next_token(&mut self) -> TokenType {
[INFO] [stdout]    |        ^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.11s
[INFO] running `Command { std: "docker" "inspect" "393f1746402f0f206373d4a40475ff1c24d8b25a9bd8f4f95955099448838955", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "393f1746402f0f206373d4a40475ff1c24d8b25a9bd8f4f95955099448838955", kill_on_drop: false }`
[INFO] [stdout] 393f1746402f0f206373d4a40475ff1c24d8b25a9bd8f4f95955099448838955
