[INFO] crate uhyve 0.0.18 is already in cache
[INFO] checking uhyve-0.0.18 against master#ba72b15666b2491415aec703a02c2364fe5e2790 for pr-71140
[INFO] extracting crate uhyve 0.0.18 into /workspace/builds/worker-14/source
[INFO] validating manifest of crates.io crate uhyve 0.0.18 on toolchain ba72b15666b2491415aec703a02c2364fe5e2790
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "read-manifest" "--manifest-path" "Cargo.toml"`
[INFO] started tweaking crates.io crate uhyve 0.0.18
[INFO] finished tweaking crates.io crate uhyve 0.0.18
[INFO] tweaked toml for crates.io crate uhyve 0.0.18 written to /workspace/builds/worker-14/source/Cargo.toml
[INFO] crate crates.io crate uhyve 0.0.18 already has a lockfile, it will not be regenerated
[INFO] running `"/workspace/cargo-home/bin/cargo" "+ba72b15666b2491415aec703a02c2364fe5e2790" "fetch" "--locked" "--manifest-path" "Cargo.toml"`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `"docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-14/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" "+ba72b15666b2491415aec703a02c2364fe5e2790" "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] 6580af060ea0830baf0968fa9ea97d06802a114aa1ca945e13abdc8d109a74a8
[INFO] running `"docker" "start" "-a" "6580af060ea0830baf0968fa9ea97d06802a114aa1ca945e13abdc8d109a74a8"`
[INFO] [stderr]    Compiling libc v0.2.66
[INFO] [stderr]    Compiling log v0.4.10
[INFO] [stderr]    Compiling x86 v0.29.0
[INFO] [stderr]    Compiling mac_address v1.0.3
[INFO] [stderr]     Checking virtio-bindings v0.1.0
[INFO] [stderr]     Checking strum v0.8.0
[INFO] [stderr]     Checking burst v0.0.2
[INFO] [stderr]    Compiling tun-tap v0.1.2
[INFO] [stderr]    Compiling raw-cpuid v7.0.3
[INFO] [stderr]    Compiling strum_macros v0.8.0
[INFO] [stderr]     Checking gdb-protocol v0.1.0
[INFO] [stderr]     Checking iovec v0.1.4
[INFO] [stderr]     Checking num_cpus v1.12.0
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking parking_lot_core v0.6.2
[INFO] [stderr]     Checking atty v0.2.13
[INFO] [stderr]     Checking vmm-sys-util v0.3.1
[INFO] [stderr]     Checking nix v0.16.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking nix v0.17.0
[INFO] [stderr]     Checking memmap v0.7.0
[INFO] [stderr]     Checking aligned_alloc v0.1.3
[INFO] [stderr]     Checking clap v2.33.0
[INFO] [stderr]     Checking env_logger v0.5.13
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking bytes v0.4.12
[INFO] [stderr]     Checking tokio-threadpool v0.1.17
[INFO] [stderr]     Checking mio v0.6.21
[INFO] [stderr]     Checking parking_lot v0.9.0
[INFO] [stderr]     Checking kvm-bindings v0.2.0
[INFO] [stderr]     Checking tokio-io v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stderr]     Checking kvm-ioctls v0.5.0
[INFO] [stderr]     Checking tokio-reactor v0.1.11
[INFO] [stderr]     Checking tokio-codec v0.1.1
[INFO] [stderr]     Checking tokio-fs v0.1.6
[INFO] [stderr]     Checking tokio-udp v0.1.5
[INFO] [stderr]     Checking tokio-tcp v0.1.3
[INFO] [stderr]     Checking tokio-uds v0.2.5
[INFO] [stderr]     Checking tokio v0.1.22
[INFO] [stderr]     Checking tokio-core v0.1.17
[INFO] [stderr]     Checking uhyve v0.0.18 (/opt/rustwide/workdir)
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/linux/mod.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     static ref KVM: Kvm = { Kvm::new().unwrap() };
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:70:50
[INFO] [stderr]    |
[INFO] [stderr] 70 |     static ref MAC_ADDRESS: Mutex<Option<String>> = { Mutex::new(None) };
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/linux/mod.rs:10:24
[INFO] [stderr]    |
[INFO] [stderr] 10 |     static ref KVM: Kvm = { Kvm::new().unwrap() };
[INFO] [stderr]    |                           ^^^^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(unused_braces)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: unnecessary braces around block return value
[INFO] [stderr]   --> src/main.rs:70:50
[INFO] [stderr]    |
[INFO] [stderr] 70 |     static ref MAC_ADDRESS: Mutex<Option<String>> = { Mutex::new(None) };
[INFO] [stderr]    |                                                     ^^^^^^^^^^^^^^^^^^^^ help: remove these braces
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reader`
[INFO] [stderr]   --> src/linux/uhyve.rs:35:2
[INFO] [stderr]    |
[INFO] [stderr] 35 |     reader: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `writer`
[INFO] [stderr]   --> src/linux/uhyve.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     writer: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `reader`
[INFO] [stderr]   --> src/linux/uhyve.rs:35:2
[INFO] [stderr]    |
[INFO] [stderr] 35 |     reader: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr]    |
[INFO] [stderr]    = note: `#[warn(dead_code)]` on by default
[INFO] [stderr] 
[INFO] [stderr] warning: field is never read: `writer`
[INFO] [stderr]   --> src/linux/uhyve.rs:36:2
[INFO] [stderr]    |
[INFO] [stderr] 36 |     writer: std::thread::JoinHandle<()>,
[INFO] [stderr]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stderr] 
[INFO] [stderr] warning: 4 warnings emitted
[INFO] [stderr] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 18.13s
[INFO] running `"docker" "inspect" "6580af060ea0830baf0968fa9ea97d06802a114aa1ca945e13abdc8d109a74a8"`
[INFO] running `"docker" "rm" "-f" "6580af060ea0830baf0968fa9ea97d06802a114aa1ca945e13abdc8d109a74a8"`
[INFO] [stdout] 6580af060ea0830baf0968fa9ea97d06802a114aa1ca945e13abdc8d109a74a8