[INFO] cloning repository https://github.com/MainShayne233/yrl
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/MainShayne233/yrl" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMainShayne233%2Fyrl", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMainShayne233%2Fyrl'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 2ccd49381c330cbc660c26597e7766ba3aa63423
[INFO] testing MainShayne233/yrl against 1.55.0 for beta-1.56-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMainShayne233%2Fyrl" "/workspace/builds/worker-0/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/MainShayne233/yrl on toolchain 1.55.0
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/MainShayne233/yrl
[INFO] finished tweaking git repo https://github.com/MainShayne233/yrl
[INFO] tweaked toml for git repo https://github.com/MainShayne233/yrl written to /workspace/builds/worker-0/source/Cargo.toml
[INFO] crate git repo https://github.com/MainShayne233/yrl already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+1.55.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[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/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 16c4ed3a13b268a7950fdd3c61d07d9bbc7fa487567d5a0f0e23f527acf8d39e
[INFO] running `Command { std: "docker" "start" "-a" "16c4ed3a13b268a7950fdd3c61d07d9bbc7fa487567d5a0f0e23f527acf8d39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "16c4ed3a13b268a7950fdd3c61d07d9bbc7fa487567d5a0f0e23f527acf8d39e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "16c4ed3a13b268a7950fdd3c61d07d9bbc7fa487567d5a0f0e23f527acf8d39e", kill_on_drop: false }`
[INFO] [stdout] 16c4ed3a13b268a7950fdd3c61d07d9bbc7fa487567d5a0f0e23f527acf8d39e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0/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:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+1.55.0" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1ae9cbd5434d1896adb3161bf4c6293672ba910c2f8b636ddd2f8fdec9c89ed9
[INFO] running `Command { std: "docker" "start" "-a" "1ae9cbd5434d1896adb3161bf4c6293672ba910c2f8b636ddd2f8fdec9c89ed9", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling proc-macro2 v1.0.2
[INFO] [stderr]    Compiling syn v1.0.5
[INFO] [stderr]    Compiling string_cache_shared v0.3.0
[INFO] [stderr]    Compiling serde v1.0.99
[INFO] [stderr]    Compiling strsim v0.9.2
[INFO] [stderr]    Compiling ordermap v0.3.5
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.3
[INFO] [stderr]    Compiling lalrpop-util v0.17.2
[INFO] [stderr]    Compiling diff v0.1.11
[INFO] [stderr]    Compiling ucd-util v0.1.5
[INFO] [stderr]    Compiling regex v0.2.11
[INFO] [stderr]    Compiling difference v2.0.0
[INFO] [stderr]    Compiling rand_pcg v0.1.2
[INFO] [stderr]    Compiling rand_chacha v0.1.1
[INFO] [stderr]    Compiling rand v0.6.5
[INFO] [stderr]    Compiling phf_shared v0.7.24
[INFO] [stderr]    Compiling block-padding v0.1.4
[INFO] [stderr]    Compiling itertools v0.8.0
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling rand_os v0.1.3
[INFO] [stderr]    Compiling aho-corasick v0.6.10
[INFO] [stderr]    Compiling ascii-canvas v2.0.0
[INFO] [stderr]    Compiling block-buffer v0.7.3
[INFO] [stderr]    Compiling pretty_assertions v0.6.1
[INFO] [stderr]    Compiling regex-syntax v0.5.6
[INFO] [stderr]    Compiling sha2 v0.8.0
[INFO] [stderr]    Compiling ena v0.13.0
[INFO] [stderr]    Compiling petgraph v0.4.13
[INFO] [stderr]    Compiling quote v1.0.2
[INFO] [stderr]    Compiling phf_generator v0.7.24
[INFO] [stderr]    Compiling string_cache_codegen v0.4.2
[INFO] [stderr]    Compiling string_cache v0.7.3
[INFO] [stderr]    Compiling serde_derive v1.0.99
[INFO] [stderr]    Compiling docopt v1.1.0
[INFO] [stderr]    Compiling lalrpop v0.17.2
[INFO] [stderr]    Compiling yrl v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `DeclarationType`, `Declaration`, `NodeExpression`, `Node`
[INFO] [stdout]  --> src/main.rs:4:18
[INFO] [stdout]   |
[INFO] [stdout] 4 | use crate::ast::{Declaration, DeclarationType, Grammar, Node, NodeExpression};
[INFO] [stdout]   |                  ^^^^^^^^^^^  ^^^^^^^^^^^^^^^           ^^^^  ^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `pretty_assertions::assert_eq`
[INFO] [stdout]  --> src/main.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use pretty_assertions::assert_eq;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `std::fs`
[INFO] [stdout]  --> src/main.rs:7:5
[INFO] [stdout]   |
[INFO] [stdout] 7 | use std::fs;
[INFO] [stdout]   |     ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:2897:5
[INFO] [stdout]      |
[INFO] [stdout] 2897 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3042:5
[INFO] [stdout]      |
[INFO] [stdout] 3042 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3053:5
[INFO] [stdout]      |
[INFO] [stdout] 3053 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3064:5
[INFO] [stdout]      |
[INFO] [stdout] 3064 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3075:5
[INFO] [stdout]      |
[INFO] [stdout] 3075 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3086:5
[INFO] [stdout]      |
[INFO] [stdout] 3086 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3097:5
[INFO] [stdout]      |
[INFO] [stdout] 3097 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3108:5
[INFO] [stdout]      |
[INFO] [stdout] 3108 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3119:5
[INFO] [stdout]      |
[INFO] [stdout] 3119 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3130:5
[INFO] [stdout]      |
[INFO] [stdout] 3130 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3141:5
[INFO] [stdout]      |
[INFO] [stdout] 3141 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3238:5
[INFO] [stdout]      |
[INFO] [stdout] 3238 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3249:5
[INFO] [stdout]      |
[INFO] [stdout] 3249 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3260:5
[INFO] [stdout]      |
[INFO] [stdout] 3260 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3271:5
[INFO] [stdout]      |
[INFO] [stdout] 3271 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]     --> /opt/rustwide/target/debug/build/yrl-c9f4e7739da3960d/out/grammar.rs:3591:5
[INFO] [stdout]      |
[INFO] [stdout] 3591 |     (__0)
[INFO] [stdout]      |     ^^^^^ help: remove these parentheses
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]  --> src/preprocess.rs:9:6
[INFO] [stdout]   |
[INFO] [stdout] 9 |     };
[INFO] [stdout]   |      ^ help: remove this semicolon
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error[E0601]: `main` function not found in crate `yrl`
[INFO] [stdout]    --> src/main.rs:1:1
[INFO] [stdout]     |
[INFO] [stdout] 1   | / #[macro_use]
[INFO] [stdout] 2   | | extern crate lalrpop_util;
[INFO] [stdout] 3   | |
[INFO] [stdout] 4   | | use crate::ast::{Declaration, DeclarationType, Grammar, Node, NodeExpression};
[INFO] [stdout] ...   |
[INFO] [stdout] 361 | |     assert_eq!(true, true);
[INFO] [stdout] 362 | | }
[INFO] [stdout]     | |_^ consider adding a `main` function to `src/main.rs`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to previous error; 20 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0601`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `yrl` due to 2 previous errors; 20 warnings emitted
[INFO] running `Command { std: "docker" "inspect" "1ae9cbd5434d1896adb3161bf4c6293672ba910c2f8b636ddd2f8fdec9c89ed9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1ae9cbd5434d1896adb3161bf4c6293672ba910c2f8b636ddd2f8fdec9c89ed9", kill_on_drop: false }`
[INFO] [stdout] 1ae9cbd5434d1896adb3161bf4c6293672ba910c2f8b636ddd2f8fdec9c89ed9