[INFO] cloning repository https://github.com/VratnamT/firecracker
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/VratnamT/firecracker" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVratnamT%2Ffirecracker", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVratnamT%2Ffirecracker'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6d1b6d438921ca9ba0f5081378ee38ad3ebb4a9e
[INFO] documenting VratnamT/firecracker against 1.69.0 for beta-1.70-rustdoc-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FVratnamT%2Ffirecracker" "/workspace/builds/worker-3-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/VratnamT/firecracker on toolchain 1.69.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc1/source/.cargo/config
[INFO] started tweaking git repo https://github.com/VratnamT/firecracker
[INFO] finished tweaking git repo https://github.com/VratnamT/firecracker
[INFO] tweaked toml for git repo https://github.com/VratnamT/firecracker written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/VratnamT/firecracker already has a lockfile, it will not be regenerated
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.69.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded tokio-io v0.1.5
[INFO] [stderr]   Downloaded tokio-core v0.1.12
[INFO] [stderr]   Downloaded hyper v0.11.16
[INFO] [stderr]   Downloaded pnet_macros v0.21.0
[INFO] [stderr]   Downloaded futures v0.1.18
[INFO] [stderr]   Downloaded json-patch v0.2.1
[INFO] [stderr]   Downloaded epoll v2.1.0
[INFO] [stderr]   Downloaded timerfd v1.0.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8693f8ca500a64542ace09331b1c64f87ee9611dd5010b8a310c7554b682d1cc
[INFO] running `Command { std: "docker" "start" "-a" "8693f8ca500a64542ace09331b1c64f87ee9611dd5010b8a310c7554b682d1cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8693f8ca500a64542ace09331b1c64f87ee9611dd5010b8a310c7554b682d1cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8693f8ca500a64542ace09331b1c64f87ee9611dd5010b8a310c7554b682d1cc", kill_on_drop: false }`
[INFO] [stdout] 8693f8ca500a64542ace09331b1c64f87ee9611dd5010b8a310c7554b682d1cc
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 7166ebadc921e5f05cf8c2fa9426b1f192b5d873af1bcebd42d339c67d6eaf96
[INFO] running `Command { std: "docker" "start" "-a" "7166ebadc921e5f05cf8c2fa9426b1f192b5d873af1bcebd42d339c67d6eaf96", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.44
[INFO] [stderr]     Checking cfg-if v0.1.6
[INFO] [stderr]    Compiling semver-parser v0.7.0
[INFO] [stderr]    Compiling unicode-xid v0.0.4
[INFO] [stderr]    Compiling quote v0.3.15
[INFO] [stderr]     Checking byteorder v1.2.1
[INFO] [stderr]    Compiling version_check v0.1.5
[INFO] [stderr]     Checking serde v1.0.27
[INFO] [stderr]     Checking dtoa v0.4.3
[INFO] [stderr]     Checking itoa v0.4.3
[INFO] [stderr]     Checking lazy_static v1.2.0
[INFO] [stderr]    Compiling num-traits v0.2.6
[INFO] [stderr]     Checking rand_core v0.3.0
[INFO] [stderr]    Compiling num-integer v0.1.39
[INFO] [stderr]     Checking futures v0.1.18
[INFO] [stderr]     Checking slab v0.4.1
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]    Compiling synom v0.11.3
[INFO] [stderr]     Checking lazycell v1.2.0
[INFO] [stderr]     Checking micro_http v0.1.0 (/opt/rustwide/workdir/micro_http)
[INFO] [stderr]     Checking rand_isaac v0.1.1
[INFO] [stderr]     Checking rand_xorshift v0.1.0
[INFO] [stderr]     Checking rand_hc v0.1.0
[INFO] [stderr]    Compiling semver v0.9.0
[INFO] [stderr]    Compiling syn v0.11.11
[INFO] [stderr]     Checking scoped-tls v0.1.2
[INFO] [stderr]     Checking log v0.3.9
[INFO] [stderr]    Compiling cc v1.0.25
[INFO] [stderr]    Compiling httparse v1.3.3
[INFO] [stderr]     Checking bitflags v1.0.4
[INFO] [stderr]     Checking bitflags v0.7.0
[INFO] [stderr]     Checking virtio_sys v0.1.0 (/opt/rustwide/workdir/virtio_sys)
[INFO] [stderr]     Checking take v0.1.0
[INFO] [stderr]    Compiling memchr v2.1.1
[INFO] [stderr]    Compiling rustc_version v0.2.3
[INFO] [stderr]    Compiling unicase v2.2.0
[INFO] [stderr]     Checking safemem v0.3.0
[INFO] [stderr]    Compiling regex v1.0.6
[INFO] [stderr]     Checking unicode-width v0.1.5
[INFO] [stderr]     Checking smallvec v0.2.1
[INFO] [stderr]     Checking slab v0.3.0
[INFO] [stderr]     Checking ucd-util v0.1.3
[INFO] [stderr]     Checking base64 v0.9.3
[INFO] [stderr]     Checking textwrap v0.9.0
[INFO] [stderr]     Checking regex-syntax v0.6.3
[INFO] [stderr]     Checking thread_local v0.3.6
[INFO] [stderr]     Checking percent-encoding v1.0.1
[INFO] [stderr]     Checking utf8-ranges v1.0.2
[INFO] [stderr]     Checking bitflags v0.9.1
[INFO] [stderr]    Compiling rand_chacha v0.1.0
[INFO] [stderr]    Compiling rand_pcg v0.1.1
[INFO] [stderr]    Compiling rand v0.6.1
[INFO] [stderr]     Checking ansi_term v0.9.0
[INFO] [stderr]     Checking vec_map v0.8.1
[INFO] [stderr]     Checking language-tags v0.2.2
[INFO] [stderr]     Checking tokio-service v0.1.0
[INFO] [stderr]     Checking sys_util v0.1.0 (/opt/rustwide/workdir/sys_util)
[INFO] [stderr]     Checking time v0.1.40
[INFO] [stderr]     Checking iovec v0.1.2
[INFO] [stderr]     Checking net2 v0.2.33
[INFO] [stderr]     Checking fc_util v0.1.0 (/opt/rustwide/workdir/fc_util)
[INFO] [stderr]     Checking timerfd v1.0.0
[INFO] [stderr]     Checking rand v0.4.3
[INFO] [stderr]     Checking memory_model v0.1.0 (/opt/rustwide/workdir/memory_model)
[INFO] [stderr]    Compiling serde_derive_internals v0.19.0
[INFO] [stderr]     Checking bytes v0.4.11
[INFO] [stderr]     Checking kvm_sys v0.1.0 (/opt/rustwide/workdir/kvm_sys)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> memory_model/src/mmap.rs:83:25
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn from_fd(fd: &AsRawFd, size: usize) -> Result<MemoryMapping> {
[INFO] [stdout]    |                         ^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 83 |     pub fn from_fd(fd: &dyn AsRawFd, size: usize) -> Result<MemoryMapping> {
[INFO] [stdout]    |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking net_sys v0.1.0 (/opt/rustwide/workdir/net_sys)
[INFO] [stderr]     Checking mio v0.6.16
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> memory_model/src/guest_memory.rs:198:9
[INFO] [stdout]     |
[INFO] [stdout] 198 |         mut buf: &mut [u8],
[INFO] [stdout]     |         ----^^^
[INFO] [stdout]     |         |
[INFO] [stdout]     |         help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking epoll v2.1.0
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking num_cpus v1.8.0
[INFO] [stderr]     Checking chrono v0.4.6
[INFO] [stderr]     Checking mime v0.3.12
[INFO] [stderr]    Compiling backtrace-sys v0.1.24
[INFO] [stderr]     Checking futures-cpupool v0.1.8
[INFO] [stderr]     Checking tokio-io v0.1.5
[INFO] [stderr]     Checking seccomp v0.1.0 (/opt/rustwide/workdir/seccomp)
[INFO] [stderr]     Checking aho-corasick v0.6.9
[INFO] [stderr]     Checking atty v0.2.11
[INFO] [stderr]     Checking relay v0.1.1
[INFO] [stderr]     Checking kvm v0.1.0 (/opt/rustwide/workdir/kvm)
[INFO] [stderr]     Checking strsim v0.6.0
[INFO] [stderr]     Checking rustc-demangle v0.1.9
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]    --> kvm/src/lib.rs:600:59
[INFO] [stdout]     |
[INFO] [stdout] 600 |     pub fn get_msrs(&self, msrs: &mut kvm_msrs) -> Result<(i32)> {
[INFO] [stdout]     |                                                           ^   ^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]     |
[INFO] [stdout] 600 -     pub fn get_msrs(&self, msrs: &mut kvm_msrs) -> Result<(i32)> {
[INFO] [stdout] 600 +     pub fn get_msrs(&self, msrs: &mut kvm_msrs) -> Result<i32> {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking clap v2.27.1
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking x86_64 v0.1.0 (/opt/rustwide/workdir/x86_64)
[INFO] [stderr]     Checking rand v0.3.22
[INFO] [stderr]     Checking tokio-core v0.1.12
[INFO] [stderr]     Checking mio-uds v0.6.7
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> x86_64/src/gdt.rs:14:5
[INFO] [stdout]    |
[INFO] [stdout] 14 |     ((((base as u64) & 0xff000000u64) << (56 - 24))
[INFO] [stdout]    |     ^
[INFO] [stdout] ...
[INFO] [stdout] 18 |         | ((limit as u64) & 0x0000ffffu64))
[INFO] [stdout]    |                                           ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 14 ~     (((base as u64) & 0xff000000u64) << (56 - 24))
[INFO] [stdout] 15 |         | (((flags as u64) & 0x0000f0ffu64) << 40)
[INFO] [stdout] 16 |         | (((limit as u64) & 0x000f0000u64) << (48 - 16))
[INFO] [stdout] 17 |         | (((base as u64) & 0x00ffffffu64) << 16)
[INFO] [stdout] 18 ~         | ((limit as u64) & 0x0000ffffu64)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> x86_64/src/gdt.rs:22:5
[INFO] [stdout]    |
[INFO] [stdout] 22 |     ((((entry) & 0xFF00000000000000) >> 32)
[INFO] [stdout]    |     ^
[INFO] [stdout] 23 |         | (((entry) & 0x000000FF00000000) >> 16)
[INFO] [stdout] 24 |         | (((entry) & 0x00000000FFFF0000) >> 16))
[INFO] [stdout]    |                                                 ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 22 ~     (((entry) & 0xFF00000000000000) >> 32)
[INFO] [stdout] 23 |         | (((entry) & 0x000000FF00000000) >> 16)
[INFO] [stdout] 24 ~         | (((entry) & 0x00000000FFFF0000) >> 16)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around block return value
[INFO] [stdout]   --> x86_64/src/interrupts.rs:55:5
[INFO] [stdout]    |
[INFO] [stdout] 55 |     (((reg) & !0x700) | ((mode) << 8))
[INFO] [stdout]    |     ^                                ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 55 -     (((reg) & !0x700) | ((mode) << 8))
[INFO] [stdout] 55 +     ((reg) & !0x700) | ((mode) << 8)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> x86_64/src/lib.rs:70:39
[INFO] [stdout]    |
[INFO] [stdout] 70 | const FIRST_ADDR_PAST_32BITS: usize = (1 << 32);
[INFO] [stdout]    |                                       ^       ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 70 - const FIRST_ADDR_PAST_32BITS: usize = (1 << 32);
[INFO] [stdout] 70 + const FIRST_ADDR_PAST_32BITS: usize = 1 << 32;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unnecessary parentheses around assigned value
[INFO] [stdout]   --> x86_64/src/lib.rs:71:35
[INFO] [stdout]    |
[INFO] [stdout] 71 | const MEM_32BIT_GAP_SIZE: usize = (768 << 20);
[INFO] [stdout]    |                                   ^         ^
[INFO] [stdout]    |
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 71 - const MEM_32BIT_GAP_SIZE: usize = (768 << 20);
[INFO] [stdout] 71 + const MEM_32BIT_GAP_SIZE: usize = 768 << 20;
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling serde_derive v1.0.27
[INFO] [stdout] warning: 5 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking kernel v0.1.0 (/opt/rustwide/workdir/kernel)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]   --> kernel/src/cmdline/mod.rs:46:12
[INFO] [stdout]    |
[INFO] [stdout] 46 |         ' '...'~' => true,
[INFO] [stdout]    |            ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tokio-proto v0.1.1
[INFO] [stderr]     Checking tokio-uds v0.1.7
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking backtrace v0.3.9
[INFO] [stderr]     Checking hyper v0.11.16
[INFO] [stderr]     Checking serde_json v1.0.17
[INFO] [stderr]     Checking net_util v0.1.0 (/opt/rustwide/workdir/net_util)
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]   --> net_util/src/mac.rs:49:9
[INFO] [stdout]    |
[INFO] [stdout] 49 |         &bytes[..].copy_from_slice(&src[..]);
[INFO] [stdout]    |         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]    |
[INFO] [stdout] 49 |         let _ = &bytes[..].copy_from_slice(&src[..]);
[INFO] [stdout]    |         +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking logger v0.1.0 (/opt/rustwide/workdir/logger)
[INFO] [stderr]     Checking json-patch v0.2.1
[INFO] [stdout] warning: unnecessary parentheses around type
[INFO] [stdout]   --> logger/src/writers.rs:47:41
[INFO] [stdout]    |
[INFO] [stdout] 47 |     fn get_line_writer(&self) -> Result<(MutexGuard<LineWriter<File>>)> {
[INFO] [stdout]    |                                         ^                            ^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(unused_parens)]` on by default
[INFO] [stdout] help: remove these parentheses
[INFO] [stdout]    |
[INFO] [stdout] 47 -     fn get_line_writer(&self) -> Result<(MutexGuard<LineWriter<File>>)> {
[INFO] [stdout] 47 +     fn get_line_writer(&self) -> Result<MutexGuard<LineWriter<File>>> {
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> logger/src/lib.rs:149:60
[INFO] [stdout]     |
[INFO] [stdout] 149 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
[INFO] [stdout]     |                                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]    --> logger/src/lib.rs:175:29
[INFO] [stdout]     |
[INFO] [stdout] 175 | static STATE: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]     |                             ^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]     |
[INFO] [stdout] 175 | static STATE: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]     |                             ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> logger/src/error.rs:45:61
[INFO] [stdout]    |
[INFO] [stdout] 45 |                 format!("Failed to open pipe. Error: {}", e.description())
[INFO] [stdout]    |                                                             ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> logger/src/error.rs:48:62
[INFO] [stdout]    |
[INFO] [stdout] 48 |                 format!("Failed to write logs. Error: {}", e.description())
[INFO] [stdout]    |                                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]   --> logger/src/error.rs:51:62
[INFO] [stdout]    |
[INFO] [stdout] 51 |                 format!("Failed to flush logs. Error: {}", e.description())
[INFO] [stdout]    |                                                              ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::sync::atomic::AtomicUsize::compare_and_swap`: Use `compare_exchange` or `compare_exchange_weak` instead
[INFO] [stdout]    --> logger/src/lib.rs:485:18
[INFO] [stdout]     |
[INFO] [stdout] 485 |         if STATE.compare_and_swap(UNINITIALIZED, INITIALIZING, Ordering::SeqCst) != UNINITIALIZED {
[INFO] [stdout]     |                  ^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated method `std::error::Error::description`: use the Display impl or to_string()
[INFO] [stdout]    --> logger/src/lib.rs:593:64
[INFO] [stdout]     |
[INFO] [stdout] 593 |                     return Err(LoggerError::LogMetricFailure(e.description().to_string()));
[INFO] [stdout]     |                                                                ^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 8 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking mmds v0.1.0 (/opt/rustwide/workdir/mmds)
[INFO] [stderr]     Checking rate_limiter v0.1.0 (/opt/rustwide/workdir/rate_limiter)
[INFO] [stderr]     Checking cpuid v0.1.0 (/opt/rustwide/workdir/cpuid)
[INFO] [stdout] warning: unnecessary trailing semicolon
[INFO] [stdout]    --> rate_limiter/src/lib.rs:281:10
[INFO] [stdout]     |
[INFO] [stdout] 281 |         };
[INFO] [stdout]     |          ^ help: remove this semicolon
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(redundant_semicolons)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking dumbo v0.1.0 (/opt/rustwide/workdir/dumbo)
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]    --> dumbo/src/tcp/connection.rs:793:17
[INFO] [stdout]     |
[INFO] [stdout] 793 |             let mut actual_end = if seq_at_or_after(self.remote_rwnd_edge, payload_end) {
[INFO] [stdout]     |                 ----^^^^^^^^^^
[INFO] [stdout]     |                 |
[INFO] [stdout]     |                 help: remove this `mut`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_mut)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused borrow that must be used
[INFO] [stdout]    --> dumbo/src/tcp/connection.rs:599:17
[INFO] [stdout]     |
[INFO] [stdout] 599 |                 &mut buf[..payload_len].copy_from_slice(s.payload());
[INFO] [stdout]     |                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ the borrow produces a value
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_must_use)]` on by default
[INFO] [stdout] help: use `let _ = ...` to ignore the resulting value
[INFO] [stdout]     |
[INFO] [stdout] 599 |                 let _ = &mut buf[..payload_len].copy_from_slice(s.payload());
[INFO] [stdout]     |                 +++++++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking devices v0.1.0 (/opt/rustwide/workdir/devices)
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> devices/src/virtio/mmio.rs:179:17
[INFO] [stdout]     |
[INFO] [stdout] 179 |             0x00...0xff if data.len() == 4 => {
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(ellipsis_inclusive_range_patterns)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> devices/src/virtio/mmio.rs:201:18
[INFO] [stdout]     |
[INFO] [stdout] 201 |             0x100...0xfff => self.device.read_config(offset - 0x100, data),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> devices/src/virtio/mmio.rs:223:17
[INFO] [stdout]     |
[INFO] [stdout] 223 |             0x00...0xff if data.len() == 4 => {
[INFO] [stdout]     |                 ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: `...` range patterns are deprecated
[INFO] [stdout]    --> devices/src/virtio/mmio.rs:249:18
[INFO] [stdout]     |
[INFO] [stdout] 249 |             0x100...0xfff => return self.device.write_config(offset - 0x100, data),
[INFO] [stdout]     |                  ^^^ help: use `..=` for an inclusive range
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/bus.rs:66:43
[INFO] [stdout]    |
[INFO] [stdout] 66 |     devices: BTreeMap<BusRange, Arc<Mutex<BusDevice>>>,
[INFO] [stdout]    |                                           ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]    = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 66 |     devices: BTreeMap<BusRange, Arc<Mutex<dyn BusDevice>>>,
[INFO] [stdout]    |                                           +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/legacy/serial.rs:69:21
[INFO] [stdout]    |
[INFO] [stdout] 69 |     out: Option<Box<io::Write + Send>>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 69 |     out: Option<Box<dyn io::Write + Send>>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> devices/src/virtio/block.rs:388:30
[INFO] [stdout]     |
[INFO] [stdout] 388 |     sender: mpsc::Sender<Box<EpollHandler>>,
[INFO] [stdout]     |                              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 388 |     sender: mpsc::Sender<Box<dyn EpollHandler>>,
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/virtio/mmio.rs:88:17
[INFO] [stdout]    |
[INFO] [stdout] 88 |     device: Box<VirtioDevice>,
[INFO] [stdout]    |                 ^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 88 |     device: Box<dyn VirtioDevice>,
[INFO] [stdout]    |                 +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> devices/src/virtio/net.rs:583:30
[INFO] [stdout]     |
[INFO] [stdout] 583 |     sender: mpsc::Sender<Box<EpollHandler>>,
[INFO] [stdout]     |                              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 583 |     sender: mpsc::Sender<Box<dyn EpollHandler>>,
[INFO] [stdout]     |                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/bus.rs:77:67
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn first_before(&self, addr: u64) -> Option<(BusRange, &Mutex<BusDevice>)> {
[INFO] [stdout]    |                                                                   ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 77 |     fn first_before(&self, addr: u64) -> Option<(BusRange, &Mutex<dyn BusDevice>)> {
[INFO] [stdout]    |                                                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/bus.rs:87:64
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn get_device(&self, addr: u64) -> Option<(u64, &Mutex<BusDevice>)> {
[INFO] [stdout]    |                                                                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 87 |     pub fn get_device(&self, addr: u64) -> Option<(u64, &Mutex<dyn BusDevice>)> {
[INFO] [stdout]    |                                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/bus.rs:98:48
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn insert(&mut self, device: Arc<Mutex<BusDevice>>, base: u64, len: u64) -> Result<()> {
[INFO] [stdout]    |                                                ^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 98 |     pub fn insert(&mut self, device: Arc<Mutex<dyn BusDevice>>, base: u64, len: u64) -> Result<()> {
[INFO] [stdout]    |                                                +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/legacy/serial.rs:73:52
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn new(interrupt_evt: EventFd, out: Option<Box<io::Write + Send>>) -> Serial {
[INFO] [stdout]    |                                                    ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 73 |     fn new(interrupt_evt: EventFd, out: Option<Box<dyn io::Write + Send>>) -> Serial {
[INFO] [stdout]    |                                                    +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> devices/src/legacy/serial.rs:90:53
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn new_out(interrupt_evt: EventFd, out: Box<io::Write + Send>) -> Serial {
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 90 |     pub fn new_out(interrupt_evt: EventFd, out: Box<dyn io::Write + Send>) -> Serial {
[INFO] [stdout]    |                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> devices/src/virtio/block.rs:395:34
[INFO] [stdout]     |
[INFO] [stdout] 395 |         sender: mpsc::Sender<Box<EpollHandler>>,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 395 |         sender: mpsc::Sender<Box<dyn EpollHandler>>,
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> devices/src/virtio/mmio.rs:105:46
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn new(mem: GuestMemory, device: Box<VirtioDevice>) -> Result<MmioDevice> {
[INFO] [stdout]     |                                              ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 105 |     pub fn new(mem: GuestMemory, device: Box<dyn VirtioDevice>) -> Result<MmioDevice> {
[INFO] [stdout]     |                                              +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> devices/src/virtio/net.rs:590:34
[INFO] [stdout]     |
[INFO] [stdout] 590 |         sender: mpsc::Sender<Box<EpollHandler>>,
[INFO] [stdout]     |                                  ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 590 |         sender: mpsc::Sender<Box<dyn EpollHandler>>,
[INFO] [stdout]     |                                  +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 17 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking vmm v0.1.0 (/opt/rustwide/workdir/vmm)
[INFO] [stdout] warning: unused label
[INFO] [stdout]     --> vmm/src/lib.rs:1189:9
[INFO] [stdout]      |
[INFO] [stdout] 1189 |         'poll: loop {
[INFO] [stdout]      |         ^^^^^
[INFO] [stdout]      |
[INFO] [stdout]      = note: `#[warn(unused_labels)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> vmm/src/lib.rs:53:60
[INFO] [stdout]    |
[INFO] [stdout] 53 | use std::sync::atomic::{AtomicBool, AtomicUsize, Ordering, ATOMIC_USIZE_INIT};
[INFO] [stdout]    |                                                            ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(deprecated)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> vmm/src/lib.rs:91:49
[INFO] [stdout]    |
[INFO] [stdout] 91 | static START_INSTANCE_REQUEST_TS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                                 ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 91 | static START_INSTANCE_REQUEST_TS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |                                                 ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: use of deprecated constant `std::sync::atomic::ATOMIC_USIZE_INIT`: the `new` function is now preferred
[INFO] [stdout]   --> vmm/src/lib.rs:92:53
[INFO] [stdout]    |
[INFO] [stdout] 92 | static START_INSTANCE_REQUEST_CPU_TS: AtomicUsize = ATOMIC_USIZE_INIT;
[INFO] [stdout]    |                                                     ^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: replace the use of the deprecated constant
[INFO] [stdout]    |
[INFO] [stdout] 92 | static START_INSTANCE_REQUEST_CPU_TS: AtomicUsize = AtomicUsize::new(0);
[INFO] [stdout]    |                                                     ~~~~~~~~~~~~~~~~~~~
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> vmm/src/lib.rs:320:25
[INFO] [stdout]     |
[INFO] [stdout] 320 |     handler: Option<Box<EpollHandler>>,
[INFO] [stdout]     |                         ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 320 |     handler: Option<Box<dyn EpollHandler>>,
[INFO] [stdout]     |                         +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> vmm/src/lib.rs:321:28
[INFO] [stdout]     |
[INFO] [stdout] 321 |     receiver: Receiver<Box<EpollHandler>>,
[INFO] [stdout]     |                            ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 321 |     receiver: Receiver<Box<dyn EpollHandler>>,
[INFO] [stdout]     |                            +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> vmm/src/lib.rs:325:35
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn new(receiver: Receiver<Box<EpollHandler>>) -> Self {
[INFO] [stdout]     |                                   ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 325 |     fn new(receiver: Receiver<Box<dyn EpollHandler>>) -> Self {
[INFO] [stdout]     |                                   +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> vmm/src/lib.rs:438:69
[INFO] [stdout]     |
[INFO] [stdout] 438 |     fn allocate_tokens(&mut self, count: usize) -> (u64, Sender<Box<EpollHandler>>) {
[INFO] [stdout]     |                                                                     ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 438 |     fn allocate_tokens(&mut self, count: usize) -> (u64, Sender<Box<dyn EpollHandler>>) {
[INFO] [stdout]     |                                                                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> vmm/src/lib.rs:474:72
[INFO] [stdout]     |
[INFO] [stdout] 474 |     fn get_device_handler(&mut self, device_idx: usize) -> Result<&mut EpollHandler> {
[INFO] [stdout]     |                                                                        ^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 474 |     fn get_device_handler(&mut self, device_idx: usize) -> Result<&mut dyn EpollHandler> {
[INFO] [stdout]     |                                                                        +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]   --> vmm/src/device_manager/mmio.rs:97:21
[INFO] [stdout]    |
[INFO] [stdout] 97 |         device: Box<devices::virtio::VirtioDevice>,
[INFO] [stdout]    |                     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]    = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]    |
[INFO] [stdout] 97 |         device: Box<dyn devices::virtio::VirtioDevice>,
[INFO] [stdout]    |                     +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking jailer v0.11.0 (/opt/rustwide/workdir/jailer)
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> jailer/src/cgroup.rs:146:47
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 for controller in CONTROLLERS.into_iter() {
[INFO] [stdout]     |                                               ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout]     = note: `#[warn(array_into_iter)]` on by default
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 146 |                 for controller in CONTROLLERS.iter() {
[INFO] [stdout]     |                                               ~~~~
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 146 -                 for controller in CONTROLLERS.into_iter() {
[INFO] [stdout] 146 +                 for controller in CONTROLLERS {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: this method call resolves to `<&[T; N] as IntoIterator>::into_iter` (due to backwards compatibility), but will resolve to <[T; N] as IntoIterator>::into_iter in Rust 2021
[INFO] [stdout]    --> jailer/src/cgroup.rs:165:43
[INFO] [stdout]     |
[INFO] [stdout] 165 |             for controller in CONTROLLERS.into_iter() {
[INFO] [stdout]     |                                           ^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this changes meaning in Rust 2021
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/IntoIterator-for-arrays.html>
[INFO] [stdout] help: use `.iter()` instead of `.into_iter()` to avoid ambiguity
[INFO] [stdout]     |
[INFO] [stdout] 165 |             for controller in CONTROLLERS.iter() {
[INFO] [stdout]     |                                           ~~~~
[INFO] [stdout] help: or remove `.into_iter()` to iterate by value
[INFO] [stdout]     |
[INFO] [stdout] 165 -             for controller in CONTROLLERS.into_iter() {
[INFO] [stdout] 165 +             for controller in CONTROLLERS {
[INFO] [stdout]     |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 2 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 10 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking api_server v0.1.0 (/opt/rustwide/workdir/api_server)
[INFO] [stdout] warning: trait objects without an explicit `dyn` are deprecated
[INFO] [stdout]    --> api_server/src/http_service.rs:439:23
[INFO] [stdout]     |
[INFO] [stdout] 439 |     type Future = Box<Future<Item = Self::Response, Error = Self::Error>>;
[INFO] [stdout]     |                       ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]     |
[INFO] [stdout]     = warning: this is accepted in the current edition (Rust 2015) but is a hard error in Rust 2021!
[INFO] [stdout]     = note: for more information, see <https://doc.rust-lang.org/nightly/edition-guide/rust-2021/warnings-promoted-to-error.html>
[INFO] [stdout]     = note: `#[warn(bare_trait_objects)]` on by default
[INFO] [stdout] help: use `dyn`
[INFO] [stdout]     |
[INFO] [stdout] 439 |     type Future = Box<dyn Future<Item = Self::Response, Error = Self::Error>>;
[INFO] [stdout]     |                       +++
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]  Documenting firecracker v0.11.0 (/opt/rustwide/workdir)
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 7.00s
[INFO] running `Command { std: "docker" "inspect" "7166ebadc921e5f05cf8c2fa9426b1f192b5d873af1bcebd42d339c67d6eaf96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "7166ebadc921e5f05cf8c2fa9426b1f192b5d873af1bcebd42d339c67d6eaf96", kill_on_drop: false }`
[INFO] [stdout] 7166ebadc921e5f05cf8c2fa9426b1f192b5d873af1bcebd42d339c67d6eaf96
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/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" "RUSTDOCFLAGS=--cap-lints=warn" "-e" "RUSTC_BOOTSTRAP=1" "-e" "DOCS_RS=1" "-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@sha256:5ff2268d62e97bff2cde7d5815dd6ed5b47097566f13b8d0ca110b04b60e07ed" "/opt/rustwide/cargo-home/bin/cargo" "+1.69.0" "rustdoc" "--lib" "-Zrustdoc-map" "-Z" "unstable-options" "--config" "build.rustdocflags=[\"-Z\", \"unstable-options\", \"--document-private-items\"]" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fbac67809cb93a9d0ed63939d3e4655e41df4ef6e95d65a49c244da0e9445909
[INFO] running `Command { std: "docker" "start" "-a" "fbac67809cb93a9d0ed63939d3e4655e41df4ef6e95d65a49c244da0e9445909", kill_on_drop: false }`
[INFO] [stderr] error: no library targets found in package `firecracker`
[INFO] running `Command { std: "docker" "inspect" "fbac67809cb93a9d0ed63939d3e4655e41df4ef6e95d65a49c244da0e9445909", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fbac67809cb93a9d0ed63939d3e4655e41df4ef6e95d65a49c244da0e9445909", kill_on_drop: false }`
[INFO] [stdout] fbac67809cb93a9d0ed63939d3e4655e41df4ef6e95d65a49c244da0e9445909
