[INFO] crate twang 0.2.0 is already in cache
[INFO] checking twang-0.2.0 against master#783139bd8fc3b94fac9a1bf81bba2c506e8221b6 for pr-72644
[INFO] extracting crate twang 0.2.0 into /workspace/builds/worker-7/source
[INFO] validating manifest of crates.io crate twang 0.2.0 on toolchain 783139bd8fc3b94fac9a1bf81bba2c506e8221b6
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate twang 0.2.0
[INFO] finished tweaking crates.io crate twang 0.2.0
[INFO] tweaked toml for crates.io crate twang 0.2.0 written to /workspace/builds/worker-7/source/Cargo.toml
[INFO] running `"/workspace/cargo-home/bin/cargo" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "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" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"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" "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" "+783139bd8fc3b94fac9a1bf81bba2c506e8221b6" "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] 2f4d1d9e5d06f9f8a1c5b9e3686a2821e65b2970d181cba8f0b5fadbb8657894
[INFO] running `"docker" "start" "-a" "2f4d1d9e5d06f9f8a1c5b9e3686a2821e65b2970d181cba8f0b5fadbb8657894"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]     Checking rand_core v0.4.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]     Checking nix v0.9.0
[INFO] [stderr]     Checking rand_core v0.3.1
[INFO] [stderr]     Checking rand v0.5.6
[INFO] [stderr]     Checking twang v0.2.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `core::num::<impl u8>::wrapping_add` that must be used
[INFO] [stderr]    --> src/pink.rs:278:5
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 self.pncnt.wrapping_add(1);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Checking adi_speaker v0.0.1
[INFO] [stderr]     Checking adi v0.12.0
[INFO] [stderr] warning: unused return value of `core::num::<impl u8>::wrapping_add` that must be used
[INFO] [stderr]    --> src/pink.rs:278:5
[INFO] [stderr]     |
[INFO] [stderr] 278 |                 self.pncnt.wrapping_add(1);
[INFO] [stderr]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]     |
[INFO] [stderr]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]     = note: this returns the result of the operation, without modifying the original
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.35s
[INFO] running `"docker" "inspect" "2f4d1d9e5d06f9f8a1c5b9e3686a2821e65b2970d181cba8f0b5fadbb8657894"`
[INFO] running `"docker" "rm" "-f" "2f4d1d9e5d06f9f8a1c5b9e3686a2821e65b2970d181cba8f0b5fadbb8657894"`
[INFO] [stdout] 2f4d1d9e5d06f9f8a1c5b9e3686a2821e65b2970d181cba8f0b5fadbb8657894