[INFO] cloning repository https://github.com/imxdn/crust
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/imxdn/crust" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimxdn%2Fcrust", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimxdn%2Fcrust'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] bd5478aade690a9478905c72ead29d417588ccf1
[INFO] checking imxdn/crust against master#4455c8937007f3cc3c078375a335d86dbab391ce for pr-140956
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fimxdn%2Fcrust" "/workspace/builds/worker-1-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-1-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/imxdn/crust
[INFO] finished tweaking git repo https://github.com/imxdn/crust
[INFO] tweaked toml for git repo https://github.com/imxdn/crust written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/imxdn/crust on toolchain 4455c8937007f3cc3c078375a335d86dbab391ce
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/imxdn/crust 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" "+4455c8937007f3cc3c078375a335d86dbab391ce" "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-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fc492de7ff02050e824b1750787379aec8070a9b0c5606e3f22f082dbbb5a5ff
[INFO] running `Command { std: "docker" "start" "-a" "fc492de7ff02050e824b1750787379aec8070a9b0c5606e3f22f082dbbb5a5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fc492de7ff02050e824b1750787379aec8070a9b0c5606e3f22f082dbbb5a5ff", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fc492de7ff02050e824b1750787379aec8070a9b0c5606e3f22f082dbbb5a5ff", kill_on_drop: false }`
[INFO] [stdout] fc492de7ff02050e824b1750787379aec8070a9b0c5606e3f22f082dbbb5a5ff
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+4455c8937007f3cc3c078375a335d86dbab391ce" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9c5ff019fbb5c16e588f443a158f4f9b8db72b69141daf0d499dfd1759488a7f
[INFO] running `Command { std: "docker" "start" "-a" "9c5ff019fbb5c16e588f443a158f4f9b8db72b69141daf0d499dfd1759488a7f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.79
[INFO] [stderr]    Compiling unicode-ident v1.0.12
[INFO] [stderr]    Compiling serde v1.0.197
[INFO] [stderr]    Compiling serde_json v1.0.115
[INFO] [stderr]     Checking ryu v1.0.17
[INFO] [stderr]     Checking itoa v1.0.11
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling syn v2.0.58
[INFO] [stderr]    Compiling serde_derive v1.0.197
[INFO] [stderr]     Checking crust v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused imports: `Expr` and `LiteralValue`
[INFO] [stdout]  --> src/lib.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use parser::expression::{Expr, LiteralValue};
[INFO] [stdout]   |                          ^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scanner::types::Token`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use scanner::types::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused imports: `Expr` and `LiteralValue`
[INFO] [stdout]  --> src/lib.rs:5:26
[INFO] [stdout]   |
[INFO] [stdout] 5 | use parser::expression::{Expr, LiteralValue};
[INFO] [stdout]   |                          ^^^^  ^^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(unused_imports)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused import: `scanner::types::Token`
[INFO] [stdout]  --> src/lib.rs:6:5
[INFO] [stdout]   |
[INFO] [stdout] 6 | use scanner::types::Token;
[INFO] [stdout]   |     ^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `accept` is never used
[INFO] [stdout]   --> src/parser/expression.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Expr {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 32 |     pub fn accept<R, T: Visitor<R>>(&self, visitor: &T) -> R {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]  --> src/parser/visitor.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Visitor<R> {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: method `accept` is never used
[INFO] [stdout]   --> src/parser/expression.rs:32:12
[INFO] [stdout]    |
[INFO] [stdout] 31 | impl Expr {
[INFO] [stdout]    | --------- method in this implementation
[INFO] [stdout] 32 |     pub fn accept<R, T: Visitor<R>>(&self, visitor: &T) -> R {
[INFO] [stdout]    |            ^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait `Visitor` is never used
[INFO] [stdout]  --> src/parser/visitor.rs:5:11
[INFO] [stdout]   |
[INFO] [stdout] 5 | pub trait Visitor<R> {
[INFO] [stdout]   |           ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished `dev` profile [unoptimized + debuginfo] target(s) in 12.51s
[INFO] running `Command { std: "docker" "inspect" "9c5ff019fbb5c16e588f443a158f4f9b8db72b69141daf0d499dfd1759488a7f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9c5ff019fbb5c16e588f443a158f4f9b8db72b69141daf0d499dfd1759488a7f", kill_on_drop: false }`
[INFO] [stdout] 9c5ff019fbb5c16e588f443a158f4f9b8db72b69141daf0d499dfd1759488a7f