[INFO] fetching crate uppercut 0.1.0...
[INFO] checking uppercut-0.1.0 against try#8a749131e7beb72f6edacefd2bdcbed3d67b2112 for pr-72331
[INFO] extracting crate uppercut 0.1.0 into /workspace/builds/worker-10/source
[INFO] validating manifest of crates.io crate uppercut 0.1.0 on toolchain 8a749131e7beb72f6edacefd2bdcbed3d67b2112
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate uppercut 0.1.0
[INFO] finished tweaking crates.io crate uppercut 0.1.0
[INFO] tweaked toml for crates.io crate uppercut 0.1.0 written to /workspace/builds/worker-10/source/Cargo.toml
[INFO] crate crates.io crate uppercut 0.1.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "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-10/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-10/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" "+8a749131e7beb72f6edacefd2bdcbed3d67b2112" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stdout] cfc8b1c808fa346d2e84caad9d39f6bb2aeb4e24b622fb4bc34f7a88b9dbde73
[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" "cfc8b1c808fa346d2e84caad9d39f6bb2aeb4e24b622fb4bc34f7a88b9dbde73"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking core_affinity v0.5.10
[INFO] [stderr]     Checking uppercut v0.1.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> tests/../src/config.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(scheduler: SchedulerConfig) -> Config {
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pool`
[INFO] [stderr]    --> tests/../src/core.rs:181:5
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pool: &'a ThreadPool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `spawn_default`
[INFO] [stderr]    --> tests/../src/core.rs:196:12
[INFO] [stderr]     |
[INFO] [stderr] 196 |     pub fn spawn_default<T: 'static + AnyActor + Send + Default>(&self, address: &str) {
[INFO] [stderr]     |            ^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `stop`
[INFO] [stderr]    --> tests/../src/core.rs:208:12
[INFO] [stderr]     |
[INFO] [stderr] 208 |     pub fn stop(&self, address: &str) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `submit`
[INFO] [stderr]    --> tests/../src/core.rs:218:12
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn submit<F: FnOnce() + Send + 'static>(&self, f: F) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 5 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `new`
[INFO] [stderr]  --> benches/../src/config.rs:9:12
[INFO] [stderr]   |
[INFO] [stderr] 9 |     pub fn new(scheduler: SchedulerConfig) -> Config {
[INFO] [stderr]   |            ^^^
[INFO] [stderr]   |
[INFO] [stderr]   = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `pool`
[INFO] [stderr]    --> benches/../src/core.rs:181:5
[INFO] [stderr]     |
[INFO] [stderr] 181 |     pool: &'a ThreadPool,
[INFO] [stderr]     |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `spawn`
[INFO] [stderr]    --> benches/../src/core.rs:191:12
[INFO] [stderr]     |
[INFO] [stderr] 191 |     pub fn spawn<F: FnOnce() -> Actor>(&self, address: &str, f: F) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `delay`
[INFO] [stderr]    --> benches/../src/core.rs:201:12
[INFO] [stderr]     |
[INFO] [stderr] 201 |     pub fn delay(&self, address: &str, envelope: Envelope, duration: Duration) {
[INFO] [stderr]     |            ^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `stop`
[INFO] [stderr]    --> benches/../src/core.rs:208:12
[INFO] [stderr]     |
[INFO] [stderr] 208 |     pub fn stop(&self, address: &str) {
[INFO] [stderr]     |            ^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: associated function is never used: `submit`
[INFO] [stderr]    --> benches/../src/core.rs:218:12
[INFO] [stderr]     |
[INFO] [stderr] 218 |     pub fn submit<F: FnOnce() + Send + 'static>(&self, f: F) {
[INFO] [stderr]     |            ^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 6 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 1.98s
[INFO] running `"docker" "inspect" "cfc8b1c808fa346d2e84caad9d39f6bb2aeb4e24b622fb4bc34f7a88b9dbde73"`
[INFO] running `"docker" "rm" "-f" "cfc8b1c808fa346d2e84caad9d39f6bb2aeb4e24b622fb4bc34f7a88b9dbde73"`
[INFO] [stdout] cfc8b1c808fa346d2e84caad9d39f6bb2aeb4e24b622fb4bc34f7a88b9dbde73