[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] testing johngarrett/checkstyle against try#722e1797249a965b6335aebd65d777f917e498f1 for pr-91031
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fjohngarrett%2Fcheckstyle" "/workspace/builds/worker-14/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-14/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/johngarrett/checkstyle on toolchain 722e1797249a965b6335aebd65d777f917e498f1
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", 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-14/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" "+722e1797249a965b6335aebd65d777f917e498f1" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] aa3d4cd0737c04f305f9dd09990ba8c071aefbb7b36a6c2a973f759f23fdbf3a
[INFO] running `Command { std: "docker" "start" "-a" "aa3d4cd0737c04f305f9dd09990ba8c071aefbb7b36a6c2a973f759f23fdbf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "aa3d4cd0737c04f305f9dd09990ba8c071aefbb7b36a6c2a973f759f23fdbf3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "aa3d4cd0737c04f305f9dd09990ba8c071aefbb7b36a6c2a973f759f23fdbf3a", kill_on_drop: false }`
[INFO] [stdout] aa3d4cd0737c04f305f9dd09990ba8c071aefbb7b36a6c2a973f759f23fdbf3a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 96954b6f963f96ca16f60f012d7ddd4c18822f8bf94a3963ff72ff2e462f2baa
[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" "96954b6f963f96ca16f60f012d7ddd4c18822f8bf94a3963ff72ff2e462f2baa", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]    Compiling 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] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.80s
[INFO] running `Command { std: "docker" "inspect" "96954b6f963f96ca16f60f012d7ddd4c18822f8bf94a3963ff72ff2e462f2baa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "96954b6f963f96ca16f60f012d7ddd4c18822f8bf94a3963ff72ff2e462f2baa", kill_on_drop: false }`
[INFO] [stdout] 96954b6f963f96ca16f60f012d7ddd4c18822f8bf94a3963ff72ff2e462f2baa
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen" "--no-run" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 34b2686108130d92bb9dff22cd2e0370d18919e6a3ee189ffef3cc09d6cef50f
[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" "34b2686108130d92bb9dff22cd2e0370d18919e6a3ee189ffef3cc09d6cef50f", kill_on_drop: false }`
[INFO] [stderr]    Compiling 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] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.59s
[INFO] running `Command { std: "docker" "inspect" "34b2686108130d92bb9dff22cd2e0370d18919e6a3ee189ffef3cc09d6cef50f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "34b2686108130d92bb9dff22cd2e0370d18919e6a3ee189ffef3cc09d6cef50f", kill_on_drop: false }`
[INFO] [stdout] 34b2686108130d92bb9dff22cd2e0370d18919e6a3ee189ffef3cc09d6cef50f
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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@sha256:5736fa189c1c60b01babf4b8b698fe57b6ecc41933a7ff2e0b8d7a221459412b" "/opt/rustwide/cargo-home/bin/cargo" "+722e1797249a965b6335aebd65d777f917e498f1" "test" "--frozen", kill_on_drop: false }`
[INFO] [stdout] 76f7bf46ab9cc103a5f76a6f0a043bf6d967824f5972093abbd30c587aba6e1d
[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" "76f7bf46ab9cc103a5f76a6f0a043bf6d967824f5972093abbd30c587aba6e1d", kill_on_drop: false }`
[INFO] [stderr] warning: unused variable: `file_contents`
[INFO] [stderr]   --> src/cs.rs:32:42
[INFO] [stderr]    |
[INFO] [stderr] 32 | pub fn format_errors(std_errors: String, file_contents: &String) {
[INFO] [stderr]    |                                          ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents`
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_variables)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unused variable: `file_contents`
[INFO] [stderr]   --> src/cs.rs:41:39
[INFO] [stderr]    |
[INFO] [stderr] 41 | pub fn javadoc_errors(errors: String, file_contents: &String) {
[INFO] [stderr]    |                                       ^^^^^^^^^^^^^ help: if this is intentional, prefix it with an underscore: `_file_contents`
[INFO] [stderr] 
[INFO] [stderr] warning: enum is never used: `CSError`
[INFO] [stderr]  --> src/cs/error.rs:2:10
[INFO] [stderr]   |
[INFO] [stderr] 2 | pub enum CSError {
[INFO] [stderr]   |          ^^^^^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: `checkstyle` (bin "checkstyle" test) generated 3 warnings
[INFO] [stderr]     Finished test [unoptimized + debuginfo] target(s) in 0.01s
[INFO] [stderr]      Running unittests (/opt/rustwide/target/debug/deps/checkstyle-ee20a459ff3ae19b)
[INFO] [stdout] 
[INFO] [stdout] running 0 tests
[INFO] [stdout] 
[INFO] [stdout] test result: ok. 0 passed; 0 failed; 0 ignored; 0 measured; 0 filtered out; finished in 0.00s
[INFO] [stdout] 
[INFO] running `Command { std: "docker" "inspect" "76f7bf46ab9cc103a5f76a6f0a043bf6d967824f5972093abbd30c587aba6e1d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "76f7bf46ab9cc103a5f76a6f0a043bf6d967824f5972093abbd30c587aba6e1d", kill_on_drop: false }`
[INFO] [stdout] 76f7bf46ab9cc103a5f76a6f0a043bf6d967824f5972093abbd30c587aba6e1d