[INFO] cloning repository https://github.com/rbnrayan/prog_lang
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rbnrayan/prog_lang" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frbnrayan%2Fprog_lang", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frbnrayan%2Fprog_lang'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] c4ed1f3864304f41d45e8baa9f0469ef2b321d92
[INFO] testing rbnrayan/prog_lang against beta-2022-04-10 for beta-1.61-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frbnrayan%2Fprog_lang" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rbnrayan/prog_lang on toolchain beta-2022-04-10
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rbnrayan/prog_lang
[INFO] finished tweaking git repo https://github.com/rbnrayan/prog_lang
[INFO] tweaked toml for git repo https://github.com/rbnrayan/prog_lang written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate git repo https://github.com/rbnrayan/prog_lang already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2022-04-10" "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-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3063e19deade92f8fbc830019ef4e1f78d179dcfb2d39d5617c4d5d857c2f827
[INFO] running `Command { std: "docker" "start" "-a" "3063e19deade92f8fbc830019ef4e1f78d179dcfb2d39d5617c4d5d857c2f827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3063e19deade92f8fbc830019ef4e1f78d179dcfb2d39d5617c4d5d857c2f827", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3063e19deade92f8fbc830019ef4e1f78d179dcfb2d39d5617c4d5d857c2f827", kill_on_drop: false }`
[INFO] [stdout] 3063e19deade92f8fbc830019ef4e1f78d179dcfb2d39d5617c4d5d857c2f827
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 16d2d2e7499c29c097656ab782c0c3dda708f434c9fddae95f91b829f7346dd9
[INFO] running `Command { std: "docker" "start" "-a" "16d2d2e7499c29c097656ab782c0c3dda708f434c9fddae95f91b829f7346dd9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling pl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ParserGrammar::*`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ParserGrammar::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParserError`
[INFO] [stdout]    --> src/main.rs:165:6
[INFO] [stdout]     |
[INFO] [stdout] 165 | enum ParserError {
[INFO] [stdout]     |      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParserGrammar`
[INFO] [stdout]    --> src/main.rs:186:6
[INFO] [stdout]     |
[INFO] [stdout] 186 | enum ParserGrammar {
[INFO] [stdout]     |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]    --> src/main.rs:216:8
[INFO] [stdout]     |
[INFO] [stdout] 216 | struct Parser<'a> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn new(tokens: &'a Vec<Token>) -> Parser<'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_token`
[INFO] [stdout]    --> src/main.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 |     fn consume_token(&mut self, tok: Token) -> Result<(), ParserError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.05s
[INFO] running `Command { std: "docker" "inspect" "16d2d2e7499c29c097656ab782c0c3dda708f434c9fddae95f91b829f7346dd9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16d2d2e7499c29c097656ab782c0c3dda708f434c9fddae95f91b829f7346dd9", kill_on_drop: false }`
[INFO] [stdout] 16d2d2e7499c29c097656ab782c0c3dda708f434c9fddae95f91b829f7346dd9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] b2eeefc5181e9302f33d80eaccafeae9662608bf4c21fe20bbe88c978a548477
[INFO] running `Command { std: "docker" "start" "-a" "b2eeefc5181e9302f33d80eaccafeae9662608bf4c21fe20bbe88c978a548477", kill_on_drop: false }`
[INFO] [stderr]    Compiling pl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused import: `ParserGrammar::*`
[INFO] [stdout]  --> src/main.rs:2:5
[INFO] [stdout]   |
[INFO] [stdout] 2 | use ParserGrammar::*;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParserError`
[INFO] [stdout]    --> src/main.rs:165:6
[INFO] [stdout]     |
[INFO] [stdout] 165 | enum ParserError {
[INFO] [stdout]     |      ^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `ParserGrammar`
[INFO] [stdout]    --> src/main.rs:186:6
[INFO] [stdout]     |
[INFO] [stdout] 186 | enum ParserGrammar {
[INFO] [stdout]     |      ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: struct is never constructed: `Parser`
[INFO] [stdout]    --> src/main.rs:216:8
[INFO] [stdout]     |
[INFO] [stdout] 216 | struct Parser<'a> {
[INFO] [stdout]     |        ^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `new`
[INFO] [stdout]    --> src/main.rs:222:8
[INFO] [stdout]     |
[INFO] [stdout] 222 |     fn new(tokens: &'a Vec<Token>) -> Parser<'a> {
[INFO] [stdout]     |        ^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `consume_token`
[INFO] [stdout]    --> src/main.rs:232:8
[INFO] [stdout]     |
[INFO] [stdout] 232 |     fn consume_token(&mut self, tok: Token) -> Result<(), ParserError> {
[INFO] [stdout]     |        ^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.31s
[INFO] [stderr]   Executable unittests src/main.rs (/opt/rustwide/target/debug/deps/pl-72ef2ff0d2090cb0)
[INFO] running `Command { std: "docker" "inspect" "b2eeefc5181e9302f33d80eaccafeae9662608bf4c21fe20bbe88c978a548477", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b2eeefc5181e9302f33d80eaccafeae9662608bf4c21fe20bbe88c978a548477", kill_on_drop: false }`
[INFO] [stdout] b2eeefc5181e9302f33d80eaccafeae9662608bf4c21fe20bbe88c978a548477
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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=warn" "-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:b0c94ce3c1162fcb8e57cac5b65ec2f72eabb1eebea4fcc35e269e823f681646" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2022-04-10" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 5ce904167124188412aa7227ab9f40225271f207c3c4c0b68d3e3279ec6a5848
[INFO] running `Command { std: "docker" "start" "-a" "5ce904167124188412aa7227ab9f40225271f207c3c4c0b68d3e3279ec6a5848", kill_on_drop: false }`
[INFO] [stderr] warning: unused import: `ParserGrammar::*`
[INFO] [stderr]  --> src/main.rs:2:5
[INFO] [stderr]   |
[INFO] [stderr] 2 | use ParserGrammar::*;
[INFO] [stderr]   |     ^^^^^^^^^^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParserError`
[INFO] [stderr]    --> src/main.rs:165:6
[INFO] [stderr]     |
[INFO] [stderr] 165 | enum ParserError {
[INFO] [stderr]     |      ^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `ParserGrammar`
[INFO] [stderr]    --> src/main.rs:186:6
[INFO] [stderr]     |
[INFO] [stderr] 186 | enum ParserGrammar {
[INFO] [stderr]     |      ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: struct is never constructed: `Parser`
[INFO] [stderr]    --> src/main.rs:216:8
[INFO] [stderr]     |
[INFO] [stderr] 216 | struct Parser<'a> {
[INFO] [stderr]     |        ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]    --> src/main.rs:222:8
[INFO] [stderr]     |
[INFO] [stderr] 222 |     fn new(tokens: &'a Vec<Token>) -> Parser<'a> {
[INFO] [stderr]     |        ^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `consume_token`
[INFO] [stderr]    --> src/main.rs:232:8
[INFO] [stderr]     |
[INFO] [stderr] 232 |     fn consume_token(&mut self, tok: Token) -> Result<(), ParserError> {
[INFO] [stderr]     |        ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: `pl` (bin "pl" test) generated 6 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests src/main.rs (/opt/rustwide/target/debug/deps/pl-72ef2ff0d2090cb0)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "5ce904167124188412aa7227ab9f40225271f207c3c4c0b68d3e3279ec6a5848", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ce904167124188412aa7227ab9f40225271f207c3c4c0b68d3e3279ec6a5848", kill_on_drop: false }`
[INFO] [stdout] 5ce904167124188412aa7227ab9f40225271f207c3c4c0b68d3e3279ec6a5848