[INFO] cloning repository https://github.com/stenbror/simba_compiler
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/stenbror/simba_compiler" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstenbror%2Fsimba_compiler", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstenbror%2Fsimba_compiler'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] fa9db96dc51ec9685112f245e02f7aab0dcdf636
[INFO] checking stenbror/simba_compiler against try#3298c2ca5e390fd0d104357fdeec514a152a9561 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstenbror%2Fsimba_compiler" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stenbror/simba_compiler on toolchain 3298c2ca5e390fd0d104357fdeec514a152a9561
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stenbror/simba_compiler
[INFO] finished tweaking git repo https://github.com/stenbror/simba_compiler
[INFO] tweaked toml for git repo https://github.com/stenbror/simba_compiler written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/stenbror/simba_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" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "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 stenbror/simba_compiler against try#3298c2ca5e390fd0d104357fdeec514a152a9561 for pr-136490
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fstenbror%2Fsimba_compiler" "/workspace/builds/worker-4-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/stenbror/simba_compiler on toolchain 3298c2ca5e390fd0d104357fdeec514a152a9561
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/stenbror/simba_compiler
[INFO] finished tweaking git repo https://github.com/stenbror/simba_compiler
[INFO] tweaked toml for git repo https://github.com/stenbror/simba_compiler written to /workspace/builds/worker-4-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/stenbror/simba_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" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3cb770189ab5e8d74358073f1b8db9588a1643e7dbc3501311f53aa373d62f52
[INFO] running `Command { std: "docker" "start" "-a" "3cb770189ab5e8d74358073f1b8db9588a1643e7dbc3501311f53aa373d62f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3cb770189ab5e8d74358073f1b8db9588a1643e7dbc3501311f53aa373d62f52", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3cb770189ab5e8d74358073f1b8db9588a1643e7dbc3501311f53aa373d62f52", kill_on_drop: false }`
[INFO] [stdout] 3cb770189ab5e8d74358073f1b8db9588a1643e7dbc3501311f53aa373d62f52
[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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+3298c2ca5e390fd0d104357fdeec514a152a9561" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4d2cd0ca2decabbedce544b0ff13ac4ff48764c520efd4633f1d0a9e5a729493
[INFO] running `Command { std: "docker" "start" "-a" "4d2cd0ca2decabbedce544b0ff13ac4ff48764c520efd4633f1d0a9e5a729493", kill_on_drop: false }`
[INFO] [stderr]     Checking simba_compiler v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `symb`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let symb = Symbols::Eof;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_symb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Number` and `String` are never constructed
[INFO] [stdout]   --> src/scanner.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub enum Symbols
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 42 |     Number(u32, u32, Box<std::string::String>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 |     Nil(u32, u32),
[INFO] [stdout] 44 |     String(u32, u32, Box<std::string::String>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbols` has derived impls for the traits `Debug` and `Clone`, 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: associated items `new` and `start_position` are never used
[INFO] [stdout]   --> src/scanner.rs:81:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub trait ScannerMethods
[INFO] [stdout]    |           -------------- associated items in this trait
[INFO] [stdout] 80 | {
[INFO] [stdout] 81 |     fn new(text: &'static str) -> Self;
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 84 |     fn start_position(&mut self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `symb`
[INFO] [stdout]  --> src/main.rs:8:9
[INFO] [stdout]   |
[INFO] [stdout] 8 |     let symb = Symbols::Eof;
[INFO] [stdout]   |         ^^^^ help: if this is intentional, prefix it with an underscore: `_symb`
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variants `Number` and `String` are never constructed
[INFO] [stdout]   --> src/scanner.rs:42:5
[INFO] [stdout]    |
[INFO] [stdout] 6  | pub enum Symbols
[INFO] [stdout]    |          ------- variants in this enum
[INFO] [stdout] ...
[INFO] [stdout] 42 |     Number(u32, u32, Box<std::string::String>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout] 43 |     Nil(u32, u32),
[INFO] [stdout] 44 |     String(u32, u32, Box<std::string::String>),
[INFO] [stdout]    |     ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `Symbols` has derived impls for the traits `Debug` and `Clone`, 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: method `start_position` is never used
[INFO] [stdout]   --> src/scanner.rs:84:8
[INFO] [stdout]    |
[INFO] [stdout] 79 | pub trait ScannerMethods
[INFO] [stdout]    |           -------------- method in this trait
[INFO] [stdout] ...
[INFO] [stdout] 84 |     fn start_position(&mut self) -> u32;
[INFO] [stdout]    |        ^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.16s
[INFO] running `Command { std: "docker" "inspect" "4d2cd0ca2decabbedce544b0ff13ac4ff48764c520efd4633f1d0a9e5a729493", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4d2cd0ca2decabbedce544b0ff13ac4ff48764c520efd4633f1d0a9e5a729493", kill_on_drop: false }`
[INFO] [stdout] 4d2cd0ca2decabbedce544b0ff13ac4ff48764c520efd4633f1d0a9e5a729493