[INFO] fetching crate guarding 0.2.1...
[INFO] checking guarding-0.2.1 against try#3d9fdbff4f377de96b3a51174e7a64086bee9a5c for pr-81477
[INFO] extracting crate guarding 0.2.1 into /workspace/builds/worker-3/source
[INFO] validating manifest of crates.io crate guarding 0.2.1 on toolchain 3d9fdbff4f377de96b3a51174e7a64086bee9a5c
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate guarding 0.2.1
[INFO] finished tweaking crates.io crate guarding 0.2.1
[INFO] tweaked toml for crates.io crate guarding 0.2.1 written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate crates.io crate guarding 0.2.1 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tree-sitter v0.19.3
[INFO] [stderr]   Downloaded tree-sitter-javascript v0.19.0
[INFO] [stderr]   Downloaded tree-sitter-java v0.19.0
[INFO] [stderr]   Downloaded tree-sitter-rust v0.19.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] bb671b23f50fae006d3830cfce79df5e3b0a963814dddd924a7e8790280a81e7
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "bb671b23f50fae006d3830cfce79df5e3b0a963814dddd924a7e8790280a81e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "bb671b23f50fae006d3830cfce79df5e3b0a963814dddd924a7e8790280a81e7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "bb671b23f50fae006d3830cfce79df5e3b0a963814dddd924a7e8790280a81e7", kill_on_drop: false }`
[INFO] [stdout] bb671b23f50fae006d3830cfce79df5e3b0a963814dddd924a7e8790280a81e7
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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@sha256:20528e8c29e4536546f0102ce88568b16ea7538393a33fcca951030f7af10457" "/opt/rustwide/cargo-home/bin/cargo" "+3d9fdbff4f377de96b3a51174e7a64086bee9a5c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 1e1d168e17608af9d01028438ce2be5c81d98950256e1564f5f26848ce41e8b5
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "1e1d168e17608af9d01028438ce2be5c81d98950256e1564f5f26848ce41e8b5", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.26
[INFO] [stderr]    Compiling cc v1.0.67
[INFO] [stderr]    Compiling syn v1.0.72
[INFO] [stderr]    Compiling memchr v2.4.0
[INFO] [stderr]    Compiling libc v0.2.94
[INFO] [stderr]     Checking os_str_bytes v2.4.0
[INFO] [stderr]     Checking strsim v0.10.0
[INFO] [stderr]     Checking same-file v1.0.6
[INFO] [stderr]    Compiling indexmap v1.6.2
[INFO] [stderr]    Compiling heck v0.3.2
[INFO] [stderr]     Checking textwrap v0.12.1
[INFO] [stderr]     Checking walkdir v2.3.2
[INFO] [stderr]     Checking aho-corasick v0.7.18
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]    Compiling tree-sitter v0.19.3
[INFO] [stderr]    Compiling tree-sitter-java v0.19.0
[INFO] [stderr]    Compiling tree-sitter-rust v0.19.0
[INFO] [stderr]    Compiling tree-sitter-javascript v0.19.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]     Checking regex v1.5.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling pest_generator v2.1.3
[INFO] [stderr]    Compiling serde_derive v1.0.126
[INFO] [stderr]    Compiling clap_derive v3.0.0-beta.2
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]     Checking clap v3.0.0-beta.2
[INFO] [stderr]     Checking serde v1.0.126
[INFO] [stderr]     Checking serde_json v1.0.64
[INFO] [stderr]     Checking guarding v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rule_executor/executor.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 | /                 &self.models.iter().for_each(|file| {
[INFO] [stdout] 151 | |                     let classes: Vec<CodeClass> = file.classes.iter()
[INFO] [stdout] 152 | |                         .filter(|class| {
[INFO] [stdout] 153 | |                             class.implements.contains(str)
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |                     filtered_models.extend(classes);
[INFO] [stdout] 158 | |                 });
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rule_executor/executor.rs:273:21
[INFO] [stdout]     |
[INFO] [stdout] 273 | /                     &assert_models.iter().for_each(|file| {
[INFO] [stdout] 274 | |                         if file.path == clz.path {
[INFO] [stdout] 275 | |                             has_file_in_assert = true;
[INFO] [stdout] 276 | |                         }
[INFO] [stdout] 277 | |                     });
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rule_executor/executor.rs:150:17
[INFO] [stdout]     |
[INFO] [stdout] 150 | /                 &self.models.iter().for_each(|file| {
[INFO] [stdout] 151 | |                     let classes: Vec<CodeClass> = file.classes.iter()
[INFO] [stdout] 152 | |                         .filter(|class| {
[INFO] [stdout] 153 | |                             class.implements.contains(str)
[INFO] [stdout] ...   |
[INFO] [stdout] 157 | |                     filtered_models.extend(classes);
[INFO] [stdout] 158 | |                 });
[INFO] [stdout]     | |__________________^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> src/rule_executor/executor.rs:273:21
[INFO] [stdout]     |
[INFO] [stdout] 273 | /                     &assert_models.iter().for_each(|file| {
[INFO] [stdout] 274 | |                         if file.path == clz.path {
[INFO] [stdout] 275 | |                             has_file_in_assert = true;
[INFO] [stdout] 276 | |                         }
[INFO] [stdout] 277 | |                     });
[INFO] [stdout]     | |______________________^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 31.24s
[INFO] running `Command { std: "docker" "inspect" "1e1d168e17608af9d01028438ce2be5c81d98950256e1564f5f26848ce41e8b5", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1e1d168e17608af9d01028438ce2be5c81d98950256e1564f5f26848ce41e8b5", kill_on_drop: false }`
[INFO] [stdout] 1e1d168e17608af9d01028438ce2be5c81d98950256e1564f5f26848ce41e8b5