[INFO] fetching crate caspaxos-kv 0.2.2...
[INFO] checking caspaxos-kv-0.2.2 against beta-2021-10-15 for beta-1.56-3
[INFO] extracting crate caspaxos-kv 0.2.2 into /workspace/builds/worker-5/source
[INFO] validating manifest of crates.io crate caspaxos-kv 0.2.2 on toolchain beta-2021-10-15
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate caspaxos-kv 0.2.2
[INFO] finished tweaking crates.io crate caspaxos-kv 0.2.2
[INFO] tweaked toml for crates.io crate caspaxos-kv 0.2.2 written to /workspace/builds/worker-5/source/Cargo.toml
[INFO] crate crates.io crate caspaxos-kv 0.2.2 already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+beta-2021-10-15" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded color-backtrace v0.4.2
[INFO] [stderr]   Downloaded sled v0.34.4
[INFO] [stderr]   Downloaded historian v4.0.3
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stderr] WARNING: Your kernel does not support swap limit capabilities or the cgroup is not mounted. Memory limited without swap.
[INFO] [stdout] e6c9360b6e6dbe516300450b7f6c54d83dfa1ada80eb34f7afc49e53cb31079d
[INFO] running `Command { std: "docker" "start" "-a" "e6c9360b6e6dbe516300450b7f6c54d83dfa1ada80eb34f7afc49e53cb31079d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e6c9360b6e6dbe516300450b7f6c54d83dfa1ada80eb34f7afc49e53cb31079d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e6c9360b6e6dbe516300450b7f6c54d83dfa1ada80eb34f7afc49e53cb31079d", kill_on_drop: false }`
[INFO] [stdout] e6c9360b6e6dbe516300450b7f6c54d83dfa1ada80eb34f7afc49e53cb31079d
[INFO] running `Command { std: "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" "CARGO_TARGET_DIR=/opt/rustwide/target" "-e" "CARGO_INCREMENTAL=0" "-e" "RUST_BACKTRACE=full" "-e" "RUSTFLAGS=--cap-lints=warn" "-e" "CARGO_HOME=/opt/rustwide/cargo-home" "-e" "RUSTUP_HOME=/opt/rustwide/rustup-home" "-w" "/opt/rustwide/workdir" "-m" "1610612736" "--user" "0:0" "--network" "none" "ghcr.io/rust-lang/crates-build-env/linux@sha256:a89201d6b5b9fd45c15d5952ece0a0129e7e80cb26ec023fd59cf09bc26f1604" "/opt/rustwide/cargo-home/bin/cargo" "+beta-2021-10-15" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7f63afa019abb14c12c4ae780849030aff781a118481e00034c02fc928502e23
[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" "7f63afa019abb14c12c4ae780849030aff781a118481e00034c02fc928502e23", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.80
[INFO] [stderr]     Checking futures-core v0.3.7
[INFO] [stderr]     Checking futures-io v0.3.7
[INFO] [stderr]     Checking fastrand v1.4.0
[INFO] [stderr]     Checking once_cell v1.4.1
[INFO] [stderr]     Checking vec-arena v1.0.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.9
[INFO] [stderr]     Checking atomic-waker v1.0.0
[INFO] [stderr]     Checking arc-swap v0.4.7
[INFO] [stderr]     Checking smallvec v1.4.2
[INFO] [stderr]     Checking regex-syntax v0.6.20
[INFO] [stderr]     Checking termcolor v1.1.0
[INFO] [stderr]     Checking object v0.21.1
[INFO] [stderr]     Checking historian v4.0.3
[INFO] [stderr]     Checking instant v0.1.8
[INFO] [stderr]     Checking async-lock v2.3.0
[INFO] [stderr]     Checking lock_api v0.4.1
[INFO] [stderr]     Checking aho-corasick v0.7.14
[INFO] [stderr]     Checking fxhash v0.2.1
[INFO] [stderr]     Checking async-channel v1.5.1
[INFO] [stderr]     Checking futures-channel v0.3.7
[INFO] [stderr]     Checking futures-lite v1.11.2
[INFO] [stderr]     Checking blocking v1.0.2
[INFO] [stderr]     Checking async-executor v1.3.0
[INFO] [stderr]     Checking getrandom v0.1.15
[INFO] [stderr]     Checking nb-connect v1.0.2
[INFO] [stderr]     Checking polling v2.0.2
[INFO] [stderr]     Checking signal-hook-registry v1.2.1
[INFO] [stderr]     Checking parking_lot_core v0.8.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking fs2 v0.4.3
[INFO] [stderr]     Checking async-fs v1.5.0
[INFO] [stderr]     Checking signal-hook v0.1.16
[INFO] [stderr]     Checking async-io v1.1.10
[INFO] [stderr]     Checking rand_core v0.5.1
[INFO] [stderr]     Checking parking_lot v0.11.0
[INFO] [stderr]     Checking sled v0.34.4
[INFO] [stderr]     Checking rand_chacha v0.2.2
[INFO] [stderr]     Checking async-process v1.0.1
[INFO] [stderr]     Checking async-net v1.5.0
[INFO] [stderr]     Checking smol v1.2.4
[INFO] [stderr]     Checking rand v0.7.3
[INFO] [stderr]     Checking regex v1.4.1
[INFO] [stderr]     Checking backtrace v0.3.53
[INFO] [stderr]     Checking uuid v0.8.1
[INFO] [stderr]     Checking color-backtrace v0.4.2
[INFO] [stderr]     Checking env_logger v0.7.1
[INFO] [stderr]     Checking quickcheck v0.9.2
[INFO] [stderr]     Checking caspaxos-kv v0.2.2 (/opt/rustwide/workdir)
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/udp_net.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary `unsafe` block
[INFO] [stdout]   --> src/udp_net.rs:78:13
[INFO] [stdout]    |
[INFO] [stdout] 78 |             unsafe {
[INFO] [stdout]    |             ^^^^^^ unnecessary `unsafe` block
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_unsafe)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 30.30s
[INFO] running `Command { std: "docker" "inspect" "7f63afa019abb14c12c4ae780849030aff781a118481e00034c02fc928502e23", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7f63afa019abb14c12c4ae780849030aff781a118481e00034c02fc928502e23", kill_on_drop: false }`
[INFO] [stdout] 7f63afa019abb14c12c4ae780849030aff781a118481e00034c02fc928502e23
