[INFO] cloning repository https://github.com/Jeremy5909/RUM
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Jeremy5909/RUM" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeremy5909%2FRUM", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeremy5909%2FRUM'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 531cc5eebbaa1d075e580feb089116dfcd579c27
[INFO] checking Jeremy5909/RUM against try#5de9e0e6cf775e94e0de2003f35e183f3f77bfe8 for pr-143808
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FJeremy5909%2FRUM" "/workspace/builds/worker-2-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc2/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/Jeremy5909/RUM
[INFO] finished tweaking git repo https://github.com/Jeremy5909/RUM
[INFO] tweaked toml for git repo https://github.com/Jeremy5909/RUM written to /workspace/builds/worker-2-tc2/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/Jeremy5909/RUM on toolchain 5de9e0e6cf775e94e0de2003f35e183f3f77bfe8
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/Jeremy5909/RUM 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" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "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-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e686b577c8095f95987a6ebe9bc2390661642f27916b17cf740097ad8576e030
[INFO] running `Command { std: "docker" "start" "-a" "e686b577c8095f95987a6ebe9bc2390661642f27916b17cf740097ad8576e030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e686b577c8095f95987a6ebe9bc2390661642f27916b17cf740097ad8576e030", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e686b577c8095f95987a6ebe9bc2390661642f27916b17cf740097ad8576e030", kill_on_drop: false }`
[INFO] [stdout] e686b577c8095f95987a6ebe9bc2390661642f27916b17cf740097ad8576e030
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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:cf8efcab8866f2cf4285301c7418e2f4f2a9b088c91ba69c40d5b659f81557f7" "/opt/rustwide/cargo-home/bin/cargo" "+5de9e0e6cf775e94e0de2003f35e183f3f77bfe8" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 03043aa422b4b9339916628cb0a77e2f78e7a2f4f0884a6f4a53d8ffc50ced7c
[INFO] running `Command { std: "docker" "start" "-a" "03043aa422b4b9339916628cb0a77e2f78e7a2f4f0884a6f4a53d8ffc50ced7c", kill_on_drop: false }`
[INFO] [stderr]     Checking rum v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]   --> src/token.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         literal: Option<String>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]   --> src/main.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn run(command: &str) {}
[INFO] [stdout]    |        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scanner` is never constructed
[INFO] [stdout]  --> src/scanner.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Scanner {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `scan_tokens`, and `is_at_end` are never used
[INFO] [stdout]   --> src/scanner.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Scanner {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 12 |     fn new(source: String) -> Scanner {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn scan_tokens(&mut self) -> &Vec<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_at_end(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenType` is never used
[INFO] [stdout]  --> src/token.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum TokenType {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> src/token.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Token {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/token.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 41 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `literal`
[INFO] [stdout]   --> src/token.rs:44:9
[INFO] [stdout]    |
[INFO] [stdout] 44 |         literal: Option<String>,
[INFO] [stdout]    |         ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_literal`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `command`
[INFO] [stdout]   --> src/main.rs:10:8
[INFO] [stdout]    |
[INFO] [stdout] 10 | fn run(command: &str) {}
[INFO] [stdout]    |        ^^^^^^^ help: if this is intentional, prefix it with an underscore: `_command`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Scanner` is never constructed
[INFO] [stdout]  --> src/scanner.rs:3:8
[INFO] [stdout]   |
[INFO] [stdout] 3 | struct Scanner {
[INFO] [stdout]   |        ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated items `new`, `scan_tokens`, and `is_at_end` are never used
[INFO] [stdout]   --> src/scanner.rs:12:8
[INFO] [stdout]    |
[INFO] [stdout] 11 | impl Scanner {
[INFO] [stdout]    | ------------ associated items in this implementation
[INFO] [stdout] 12 |     fn new(source: String) -> Scanner {
[INFO] [stdout]    |        ^^^
[INFO] [stdout] ...
[INFO] [stdout] 22 |     fn scan_tokens(&mut self) -> &Vec<Token> {
[INFO] [stdout]    |        ^^^^^^^^^^^
[INFO] [stdout] ...
[INFO] [stdout] 33 |     fn is_at_end(&self) -> bool {
[INFO] [stdout]    |        ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum `TokenType` is never used
[INFO] [stdout]  --> src/token.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum TokenType {
[INFO] [stdout]   |          ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct `Token` is never constructed
[INFO] [stdout]   --> src/token.rs:35:12
[INFO] [stdout]    |
[INFO] [stdout] 35 | pub struct Token {
[INFO] [stdout]    |            ^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function `new` is never used
[INFO] [stdout]   --> src/token.rs:41:12
[INFO] [stdout]    |
[INFO] [stdout] 40 | impl Token {
[INFO] [stdout]    | ---------- associated function in this implementation
[INFO] [stdout] 41 |     pub fn new(
[INFO] [stdout]    |            ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 0.06s
[INFO] running `Command { std: "docker" "inspect" "03043aa422b4b9339916628cb0a77e2f78e7a2f4f0884a6f4a53d8ffc50ced7c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "03043aa422b4b9339916628cb0a77e2f78e7a2f4f0884a6f4a53d8ffc50ced7c", kill_on_drop: false }`
[INFO] [stdout] 03043aa422b4b9339916628cb0a77e2f78e7a2f4f0884a6f4a53d8ffc50ced7c