[INFO] fetching crate cht 0.1.2...
[INFO] checking cht-0.1.2 against try#ea663bba38739867a4b75ac820991b4f5d093c3b for pr-62262-1
[INFO] extracting crate cht 0.1.2 into /workspace/builds/worker-9/source
[INFO] validating manifest of crates.io crate cht 0.1.2 on toolchain ea663bba38739867a4b75ac820991b4f5d093c3b
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate cht 0.1.2
[INFO] finished tweaking crates.io crate cht 0.1.2
[INFO] tweaked toml for crates.io crate cht 0.1.2 written to /workspace/builds/worker-9/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "generate-lockfile" "--manifest-path" "Cargo.toml" "-Zno-index-update"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-9/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" "+ea663bba38739867a4b75ac820991b4f5d093c3b" "check" "--frozen" "--all" "--all-targets"`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] c0a43f7ab6a66ac01d5c9cc20879765158478312977c1325d7b115b21d343fc5
[INFO] running `"docker" "start" "-a" "c0a43f7ab6a66ac01d5c9cc20879765158478312977c1325d7b115b21d343fc5"`
[INFO] [stderr]     Checking cht v0.1.2 (/opt/rustwide/workdir)
[INFO] [stderr] warning: method is never used: `get`
[INFO] [stderr]   --> benches/mutex.rs:59:5
[INFO] [stderr]    |
[INFO] [stderr] 59 | /     fn get<Q: Hash + Eq + ?Sized>(&self, key: &Q) -> Option<Arc<RwLock<V>>>
[INFO] [stderr] 60 | |     where
[INFO] [stderr] 61 | |         K: Borrow<Q>,
[INFO] [stderr] 62 | |     {
[INFO] [stderr] 63 | |         let guard = self.map.read();
[INFO] [stderr] 64 | |         guard.get(key).cloned()
[INFO] [stderr] 65 | |     }
[INFO] [stderr]    | |_____^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2.11s
[INFO] running `"docker" "inspect" "c0a43f7ab6a66ac01d5c9cc20879765158478312977c1325d7b115b21d343fc5"`
[INFO] running `"docker" "rm" "-f" "c0a43f7ab6a66ac01d5c9cc20879765158478312977c1325d7b115b21d343fc5"`
[INFO] [stdout] c0a43f7ab6a66ac01d5c9cc20879765158478312977c1325d7b115b21d343fc5