[INFO] cloning repository https://github.com/EgorkaZ/play-with-lalrpop
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/EgorkaZ/play-with-lalrpop" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEgorkaZ%2Fplay-with-lalrpop", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEgorkaZ%2Fplay-with-lalrpop'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 15d47331222a0178fa76215541beb0a46e5e13b8
[INFO] checking EgorkaZ/play-with-lalrpop against master#33fdb797f59421c7bbecaa4588ed5d7a31a9494a for pr-87190-3
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FEgorkaZ%2Fplay-with-lalrpop" "/workspace/builds/worker-69/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-69/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/EgorkaZ/play-with-lalrpop on toolchain 33fdb797f59421c7bbecaa4588ed5d7a31a9494a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/EgorkaZ/play-with-lalrpop
[INFO] finished tweaking git repo https://github.com/EgorkaZ/play-with-lalrpop
[INFO] tweaked toml for git repo https://github.com/EgorkaZ/play-with-lalrpop written to /workspace/builds/worker-69/source/Cargo.toml
[INFO] crate git repo https://github.com/EgorkaZ/play-with-lalrpop already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "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-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8b76bcdaacdfb47925025e7d2c75a1802cd0b7e1122f64fecc463a1c4946cadb
[INFO] running `Command { std: "docker" "start" "-a" "8b76bcdaacdfb47925025e7d2c75a1802cd0b7e1122f64fecc463a1c4946cadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8b76bcdaacdfb47925025e7d2c75a1802cd0b7e1122f64fecc463a1c4946cadb", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8b76bcdaacdfb47925025e7d2c75a1802cd0b7e1122f64fecc463a1c4946cadb", kill_on_drop: false }`
[INFO] [stdout] 8b76bcdaacdfb47925025e7d2c75a1802cd0b7e1122f64fecc463a1c4946cadb
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-69/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" "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@sha256:34b6a614d2c27851fe6cbf88fbd1137609cefab8b10d0615aaeb6fd47975d74e" "/opt/rustwide/cargo-home/bin/cargo" "+33fdb797f59421c7bbecaa4588ed5d7a31a9494a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] ce11161916dc91aee00583aca86c16383c07a3894377f3fbc2b9859bc83bbc67
[INFO] running `Command { std: "docker" "start" "-a" "ce11161916dc91aee00583aca86c16383c07a3894377f3fbc2b9859bc83bbc67", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling cfg-if v1.0.0
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling siphasher v0.3.6
[INFO] [stderr]    Compiling hashbrown v0.11.2
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling bit-vec v0.6.3
[INFO] [stderr]    Compiling new_debug_unreachable v1.0.4
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling precomputed-hash v0.1.1
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling fixedbitset v0.2.0
[INFO] [stderr]    Compiling diff v0.1.12
[INFO] [stderr]    Compiling pico-args v0.4.2
[INFO] [stderr]    Compiling unicode-xid v0.2.2
[INFO] [stderr]     Checking regex-syntax v0.6.25
[INFO] [stderr]    Compiling dirs-sys-next v0.1.2
[INFO] [stderr]    Compiling atty v0.2.14
[INFO] [stderr]    Compiling log v0.4.14
[INFO] [stderr]    Compiling bit-set v0.5.2
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling indexmap v1.7.0
[INFO] [stderr]    Compiling itertools v0.10.1
[INFO] [stderr]    Compiling dirs-next v2.0.0
[INFO] [stderr]    Compiling term v0.7.0
[INFO] [stderr]    Compiling ena v0.14.0
[INFO] [stderr]    Compiling string_cache v0.8.1
[INFO] [stderr]    Compiling petgraph v0.5.1
[INFO] [stderr]    Compiling aho-corasick v0.7.18
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling ascii-canvas v3.0.0
[INFO] [stderr]     Checking lalrpop-util v0.19.6
[INFO] [stderr]    Compiling lalrpop v0.19.6
[INFO] [stderr]    Compiling parsers_try v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused attribute `allow`
[INFO] [stdout]  --> src/parser/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[allow(clippy::all)] lalrpop_mod!(pub terms, "/parser/terms.rs");
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `allow` will be ignored, since it's applied to the macro invocation `lalrpop_mod`
[INFO] [stdout]  --> src/parser/mod.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[allow(clippy::all)] lalrpop_mod!(pub terms, "/parser/terms.rs");
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused attribute `allow`
[INFO] [stdout]  --> src/parser/mod.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[allow(clippy::all)] lalrpop_mod!(pub terms, "/parser/terms.rs");
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_attributes)]` on by default
[INFO] [stdout] note: the built-in attribute `allow` will be ignored, since it's applied to the macro invocation `lalrpop_mod`
[INFO] [stdout]  --> src/parser/mod.rs:1:23
[INFO] [stdout]   |
[INFO] [stdout] 1 | #[allow(clippy::all)] lalrpop_mod!(pub terms, "/parser/terms.rs");
[INFO] [stdout]   |                       ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]   --> src/main.rs:11:84
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{env::args, error::Error, fs::File, io::{self, BufRead, BufReader, Read}, rc::Rc};
[INFO] [stdout]    |                                                                                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `rc::Rc`
[INFO] [stdout]   --> src/main.rs:11:84
[INFO] [stdout]    |
[INFO] [stdout] 11 | use std::{env::args, error::Error, fs::File, io::{self, BufRead, BufReader, Read}, rc::Rc};
[INFO] [stdout]    |                                                                                    ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExprNode`, `Expr`, `GetSubsts`
[INFO] [stdout]   --> src/main.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::{ast::{Expr, ExprNode}, matcher::{GetSubsts}, parser::ExprManager};
[INFO] [stdout]    |                   ^^^^  ^^^^^^^^             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `ExprNode`, `Expr`, `GetSubsts`
[INFO] [stdout]   --> src/main.rs:15:19
[INFO] [stdout]    |
[INFO] [stdout] 15 | use crate::{ast::{Expr, ExprNode}, matcher::{GetSubsts}, parser::ExprManager};
[INFO] [stdout]    |                   ^^^^  ^^^^^^^^             ^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let proof = Proof::new(to_prove, proof);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `proof`
[INFO] [stdout]   --> src/main.rs:50:9
[INFO] [stdout]    |
[INFO] [stdout] 50 |     let proof = Proof::new(to_prove, proof);
[INFO] [stdout]    |         ^^^^^ help: if this is intentional, prefix it with an underscore: `_proof`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `to_prove`
[INFO] [stdout]  --> src/proof_check.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     to_prove: ExprNode,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `proof`
[INFO] [stdout]  --> src/proof_check.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     proof: Vec<ExprNode>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `to_prove`
[INFO] [stdout]  --> src/proof_check.rs:5:5
[INFO] [stdout]   |
[INFO] [stdout] 5 |     to_prove: ExprNode,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `proof`
[INFO] [stdout]  --> src/proof_check.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 |     proof: Vec<ExprNode>,
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 6 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 48.75s
[INFO] running `Command { std: "docker" "inspect" "ce11161916dc91aee00583aca86c16383c07a3894377f3fbc2b9859bc83bbc67", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "ce11161916dc91aee00583aca86c16383c07a3894377f3fbc2b9859bc83bbc67", kill_on_drop: false }`
[INFO] [stdout] ce11161916dc91aee00583aca86c16383c07a3894377f3fbc2b9859bc83bbc67