[INFO] updating cached repository https://github.com/inv2004/rust-async-kv-benchmarks
[INFO] running `Command { std: "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", kill_on_drop: false }`
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] e747014fbd00e48b882065bc620db5a109b1564d
[INFO] testing inv2004/rust-async-kv-benchmarks against master#8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e for pr-74409
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Finv2004%2Frust-async-kv-benchmarks" "/workspace/builds/worker-2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/inv2004/rust-async-kv-benchmarks on toolchain 8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "read-manifest" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/inv2004/rust-async-kv-benchmarks
[INFO] finished tweaking git repo https://github.com/inv2004/rust-async-kv-benchmarks
[INFO] tweaked toml for git repo https://github.com/inv2004/rust-async-kv-benchmarks written to /workspace/builds/worker-2/source/Cargo.toml
[INFO] crate git repo https://github.com/inv2004/rust-async-kv-benchmarks already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
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[INFO] [stdout] 4174b8b84ce1444d719cc30fbb392f05b493da6396317d9c9bf98a04032707c4
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] running `Command { std: "docker" "start" "-a" "4174b8b84ce1444d719cc30fbb392f05b493da6396317d9c9bf98a04032707c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4174b8b84ce1444d719cc30fbb392f05b493da6396317d9c9bf98a04032707c4", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4174b8b84ce1444d719cc30fbb392f05b493da6396317d9c9bf98a04032707c4", kill_on_drop: false }`
[INFO] [stdout] 4174b8b84ce1444d719cc30fbb392f05b493da6396317d9c9bf98a04032707c4
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2/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@sha256:d9fbb4e2287ab3795bdefaf705efb7541a8875c13bce71e067d6b01dc5ed759b" "/opt/rustwide/cargo-home/bin/cargo" "+8534be72fc3b9c5f2f2dc4e4ee7b651a008e9a3e" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 2e70728c7bc722c64f8266b1faacd810a61e7f45fef36e680f238196f6120a19
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
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[INFO] [stderr]    Compiling tokio-db v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/bin/kv_rwlock_multi.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/bin/kv_thr_msg.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/bin/kv_cmap_single.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/bin/kv_refcell_single.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: the feature `async_await` has been stable since 1.39.0 and no longer requires an attribute to enable
[INFO] [stdout]  --> src/bin/kv_cmap_multi.rs:1:12
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(async_await)]
[INFO] [stdout]   |            ^^^^^^^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(stable_features)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `tokio-db`.
[INFO] [stderr] 
[INFO] [stderr] Caused by:
[INFO] [stderr]   process didn't exit successfully: `rustc --crate-name kv_actix_rwlock --edition=2018 src/bin/kv_actix_rwlock.rs --error-format=json --json=diagnostic-rendered-ansi --crate-type bin --emit=dep-info,link -Cembed-bitcode=no -C debuginfo=2 -C metadata=0cb9afafa5f59316 -C extra-filename=-0cb9afafa5f59316 --out-dir /opt/rustwide/target/debug/deps -L dependency=/opt/rustwide/target/debug/deps --extern actix=/opt/rustwide/target/debug/deps/libactix-8b5b12a9ac1c2124.rlib --extern actix_rt=/opt/rustwide/target/debug/deps/libactix_rt-e39d267b2805e6aa.rlib --extern actix_web=/opt/rustwide/target/debug/deps/libactix_web-4b140e068d04b1b0.rlib --extern chashmap=/opt/rustwide/target/debug/deps/libchashmap-5c5a2915bad6306c.rlib --extern crossbeam_requests=/opt/rustwide/target/debug/deps/libcrossbeam_requests-ef0bc904e3cc698d.rlib --extern futures01=/opt/rustwide/target/debug/deps/libfutures-d5e6b72eae6fcf12.rlib --extern futures=/opt/rustwide/target/debug/deps/libfutures-61842836006c1eeb.rlib --extern hyper=/opt/rustwide/target/debug/deps/libhyper-9928251ae13288cc.rlib --extern num_cpus=/opt/rustwide/target/debug/deps/libnum_cpus-7bf03ac5cf1b20e0.rlib --extern tokio=/opt/rustwide/target/debug/deps/libtokio-05e6cc20fc997ee9.rlib --cap-lints=forbid -L native=/opt/rustwide/target/debug/build/backtrace-sys-a856faa803a0b043/out -L native=/opt/rustwide/target/debug/build/brotli-sys-895a8aeddc5e9760/out -L native=/opt/rustwide/target/debug/build/miniz-sys-3ca9c4336f3a43f1/out` (signal: 9, SIGKILL: kill)
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr] error: build failed
[INFO] running `Command { std: "docker" "inspect" "2e70728c7bc722c64f8266b1faacd810a61e7f45fef36e680f238196f6120a19", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "2e70728c7bc722c64f8266b1faacd810a61e7f45fef36e680f238196f6120a19", kill_on_drop: false }`
[INFO] [stdout] 2e70728c7bc722c64f8266b1faacd810a61e7f45fef36e680f238196f6120a19