[INFO] cloning repository https://github.com/johngarrett/checkstyle
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/johngarrett/checkstyle" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohngarrett%2Fcheckstyle", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohngarrett%2Fcheckstyle'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 61f1360ca04e117d2c472ea2285d3c17eee59722
[INFO] checking johngarrett/checkstyle against master#a609fb45efad59dfd459c76e50899be9f0583b5a for pr-80579
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohngarrett%2Fcheckstyle" "/workspace/builds/worker-7/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-7/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johngarrett/checkstyle on toolchain a609fb45efad59dfd459c76e50899be9f0583b5a
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/johngarrett/checkstyle
[INFO] finished tweaking git repo https://github.com/johngarrett/checkstyle
[INFO] tweaked toml for git repo https://github.com/johngarrett/checkstyle written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] crate git repo https://github.com/johngarrett/checkstyle already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3df40a7812cf244173e074f748d6e96927754d9d39c142aab1fb848cfa0afe7a
[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" "3df40a7812cf244173e074f748d6e96927754d9d39c142aab1fb848cfa0afe7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3df40a7812cf244173e074f748d6e96927754d9d39c142aab1fb848cfa0afe7a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3df40a7812cf244173e074f748d6e96927754d9d39c142aab1fb848cfa0afe7a", kill_on_drop: false }`
[INFO] [stdout] 3df40a7812cf244173e074f748d6e96927754d9d39c142aab1fb848cfa0afe7a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7/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" "rustops/crates-build-env@sha256:c8ac004eab7d63a0ad09a2dde3d3353ba464f767bee4de425dc8f74c46a1905e" "/opt/rustwide/cargo-home/bin/cargo" "+a609fb45efad59dfd459c76e50899be9f0583b5a" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 853250ced703061aa309c22225b8cc9ed0732a64a819b6f1ed764ea906f018d7
[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" "853250ced703061aa309c22225b8cc9ed0732a64a819b6f1ed764ea906f018d7", kill_on_drop: false }`
[INFO] [stderr]     Checking checkstyle v0.0.1 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unused variable: `file_contents`
[INFO] [stdout]   --> src/cs.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn format_errors(std_errors: String, file_contents: &String) {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_contents`
[INFO] [stdout]   --> src/cs.rs:41:39
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn javadoc_errors(errors: String, file_contents: &String) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CSError`
[INFO] [stdout]  --> src/cs/error.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum CSError {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_contents`
[INFO] [stdout]   --> src/cs.rs:32:42
[INFO] [stdout]    |
[INFO] [stdout] 32 | pub fn format_errors(std_errors: String, file_contents: &String) {
[INFO] [stdout]    |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents`
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `file_contents`
[INFO] [stdout]   --> src/cs.rs:41:39
[INFO] [stdout]    |
[INFO] [stdout] 41 | pub fn javadoc_errors(errors: String, file_contents: &String) {
[INFO] [stdout]    |                                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: enum is never used: `CSError`
[INFO] [stdout]  --> src/cs/error.rs:2:10
[INFO] [stdout]   |
[INFO] [stdout] 2 | pub enum CSError {
[INFO] [stdout]   |          ^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 3 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 0.30s
[INFO] running `Command { std: "docker" "inspect" "853250ced703061aa309c22225b8cc9ed0732a64a819b6f1ed764ea906f018d7", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "853250ced703061aa309c22225b8cc9ed0732a64a819b6f1ed764ea906f018d7", kill_on_drop: false }`
[INFO] [stdout] 853250ced703061aa309c22225b8cc9ed0732a64a819b6f1ed764ea906f018d7