[INFO] updating cached repository https://github.com/manishgupta24/rustcel
[INFO] running `"git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "-c" "remote.origin.fetch=refs/heads/*:refs/heads/*" "fetch" "origin" "--force" "--prune"`
[INFO] running `"git" "rev-parse" "HEAD"`
[INFO] [stdout] 1d3e0c58ec660ae47d8a3a0bd35edec27fbea12e
[INFO] checking manishgupta24/rustcel against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] running `"git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fmanishgupta24%2Frustcel" "/workspace/builds/worker-4/source"`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/manishgupta24/rustcel on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking git repo https://github.com/manishgupta24/rustcel
[INFO] finished tweaking git repo https://github.com/manishgupta24/rustcel
[INFO] tweaked toml for git repo https://github.com/manishgupta24/rustcel written to /workspace/builds/worker-4/source/Cargo.toml
[INFO] crate git repo https://github.com/manishgupta24/rustcel already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4/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" "MAP_USER_ID=0" "-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" "--network" "none" "rustops/crates-build-env" "/opt/rustwide/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] 15ce51bd00d968c013d2a45e5d1a176a8e179521e2a54cc436b987e2775a9f2e
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `"docker" "start" "-a" "15ce51bd00d968c013d2a45e5d1a176a8e179521e2a54cc436b987e2775a9f2e"`
[INFO] [stderr]    Compiling smallvec v1.0.0
[INFO] [stderr]    Compiling cookie-factory v0.2.4
[INFO] [stderr]    Compiling num-traits v0.2.10
[INFO] [stderr]    Compiling jobserver v0.1.17
[INFO] [stderr]    Compiling num_cpus v1.11.1
[INFO] [stderr]    Compiling pest_generator v2.1.1
[INFO] [stderr]     Checking nom v4.2.3
[INFO] [stderr]    Compiling serde v1.0.103
[INFO] [stderr]    Compiling snafu-derive v0.4.4
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking mio-extras v2.0.6
[INFO] [stderr]    Compiling unicode-normalization v0.1.11
[INFO] [stderr]    Compiling cc v1.0.48
[INFO] [stderr]    Compiling num-integer v0.1.41
[INFO] [stderr]    Compiling chrono v0.4.10
[INFO] [stderr]    Compiling idna v0.2.0
[INFO] [stderr]    Compiling libz-sys v1.0.25
[INFO] [stderr]    Compiling libgit2-sys v0.9.2
[INFO] [stderr]    Compiling backtrace-sys v0.1.32
[INFO] [stderr]    Compiling pest_derive v2.1.0
[INFO] [stderr]    Compiling url v2.1.0
[INFO] [stderr]     Checking backtrace v0.3.40
[INFO] [stderr]     Checking snafu v0.4.4
[INFO] [stderr]    Compiling git2 v0.10.2
[INFO] [stderr]     Checking serde_json v1.0.44
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking serde_yaml v0.8.11
[INFO] [stderr]    Compiling toml v0.5.5
[INFO] [stderr]    Compiling amq-protocol-types v1.2.0
[INFO] [stderr]    Compiling handlebars v1.1.0
[INFO] [stderr]    Compiling built v0.3.2
[INFO] [stderr]    Compiling amiquip v0.3.2
[INFO] [stderr]     Checking amq-protocol-codegen v1.4.0
[INFO] [stderr]    Compiling amq-protocol v1.4.0
[INFO] [stderr]     Checking rustcel v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:31:67
[INFO] [stderr]    |
[INFO] [stderr] 31 |     static ref TASK_MAP: Mutex<HashMap<&'static str, Callable>> = { Mutex::new(HashMap::new()) };
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:31:67
[INFO] [stderr]    |
[INFO] [stderr] 31 |     static ref TASK_MAP: Mutex<HashMap<&'static str, Callable>> = { Mutex::new(HashMap::new()) };
[INFO] [stderr]    |                                                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `register_task`
[INFO] [stderr]   --> src/main.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn register_task(task_name: &'static str, task: Callable) -> &'static str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: function is never used: `register_task`
[INFO] [stderr]   --> src/main.rs:34:4
[INFO] [stderr]    |
[INFO] [stderr] 34 | fn register_task(task_name: &'static str, task: Callable) -> &'static str {
[INFO] [stderr]    |    ^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: 2 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1m 54s
[INFO] running `"docker" "inspect" "15ce51bd00d968c013d2a45e5d1a176a8e179521e2a54cc436b987e2775a9f2e"`
[INFO] running `"docker" "rm" "-f" "15ce51bd00d968c013d2a45e5d1a176a8e179521e2a54cc436b987e2775a9f2e"`
[INFO] [stdout] 15ce51bd00d968c013d2a45e5d1a176a8e179521e2a54cc436b987e2775a9f2e