[INFO] fetching crate lightbeam 0.16.0...
[INFO] checking lightbeam-0.16.0 against try#d7b51666469c792a8a3f40849607739bae1e705e for pr-71665
[INFO] extracting crate lightbeam 0.16.0 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate lightbeam 0.16.0 on toolchain d7b51666469c792a8a3f40849607739bae1e705e
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate lightbeam 0.16.0
[INFO] finished tweaking crates.io crate lightbeam 0.16.0
[INFO] tweaked toml for crates.io crate lightbeam 0.16.0 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate lightbeam 0.16.0 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+d7b51666469c792a8a3f40849607739bae1e705e" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5/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" "+d7b51666469c792a8a3f40849607739bae1e705e" "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] 3b5d69758a18d95adf055fdb178698ca37a20c440a1beaf65494331210f87197
[INFO] running `"docker" "start" "-a" "3b5d69758a18d95adf055fdb178698ca37a20c440a1beaf65494331210f87197"`
[INFO] [stderr] sudo: setrlimit(RLIMIT_CORE): Operation not permitted
[INFO] [stderr]    Compiling proc-macro2 v1.0.10
[INFO] [stderr]    Compiling syn v1.0.18
[INFO] [stderr]    Compiling libc v0.2.69
[INFO] [stderr]    Compiling autocfg v1.0.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]    Compiling log v0.4.8
[INFO] [stderr]    Compiling getrandom v0.1.14
[INFO] [stderr]    Compiling memchr v2.3.3
[INFO] [stderr]    Compiling cranelift-entity v0.63.0
[INFO] [stderr]    Compiling cc v1.0.52
[INFO] [stderr]    Compiling cranelift-codegen-shared v0.63.0
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling target-lexicon v0.10.0
[INFO] [stderr]     Checking rustc-hash v1.1.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.6
[INFO] [stderr]    Compiling stable_deref_trait v1.1.1
[INFO] [stderr]     Checking regex-syntax v0.6.17
[INFO] [stderr]     Checking leb128 v0.2.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]     Checking more-asserts v0.2.1
[INFO] [stderr]     Checking wasmparser v0.51.4
[INFO] [stderr]     Checking staticvec v0.8.9
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]    Compiling cranelift-codegen-meta v0.63.0
[INFO] [stderr]    Compiling owning_ref v0.4.1
[INFO] [stderr]    Compiling indexmap v1.3.2
[INFO] [stderr]    Compiling memoffset v0.5.4
[INFO] [stderr]     Checking wast v14.0.0
[INFO] [stderr]     Checking itertools v0.8.2
[INFO] [stderr]     Checking cranelift-bforest v0.63.0
[INFO] [stderr]     Checking regalloc v0.0.21
[INFO] [stderr]     Checking aho-corasick v0.7.10
[INFO] [stderr]    Compiling capstone-sys v0.10.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]    Compiling quote v1.0.3
[INFO] [stderr]     Checking dynasmrt v0.5.2
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking regex v1.3.7
[INFO] [stderr]     Checking gimli v0.20.0
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking wat v1.0.15
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]    Compiling cranelift-codegen v0.63.0
[INFO] [stderr]    Compiling derive_utils v0.9.1
[INFO] [stderr]    Compiling thiserror-impl v1.0.16
[INFO] [stderr]    Compiling derive_more v0.99.5
[INFO] [stderr]    Compiling dynasm v0.5.2
[INFO] [stderr]    Compiling iter-enum v0.2.3
[INFO] [stderr]     Checking thiserror v1.0.16
[INFO] [stderr]     Checking capstone v0.6.0
[INFO] [stderr]     Checking lightbeam v0.16.0 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/backend.rs:5670:9
[INFO] [stderr]      |
[INFO] [stderr] 5670 |         mem::replace(&mut self.block_state.stack, stack);
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr] warning: unused return value of `std::mem::replace` that must be used
[INFO] [stderr]     --> src/backend.rs:5670:9
[INFO] [stderr]      |
[INFO] [stderr] 5670 |         mem::replace(&mut self.block_state.stack, stack);
[INFO] [stderr]      |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]      |
[INFO] [stderr]      = note: `#[warn(unused_must_use)]` on by default
[INFO] [stderr]      = note: if you don't need the old value, you can just assign the new value directly
[INFO] [stderr] 
[INFO] [stderr] warning: 1 warning emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 53s
[INFO] running `"docker" "inspect" "3b5d69758a18d95adf055fdb178698ca37a20c440a1beaf65494331210f87197"`
[INFO] running `"docker" "rm" "-f" "3b5d69758a18d95adf055fdb178698ca37a20c440a1beaf65494331210f87197"`
[INFO] [stdout] 3b5d69758a18d95adf055fdb178698ca37a20c440a1beaf65494331210f87197