[INFO] cloning repository https://github.com/Mic92/vmsh
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Mic92/vmsh" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMic92%2Fvmsh", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMic92%2Fvmsh'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 7e3570565b1e4c8f4d6fd70fd29e3ed1b1c3355c
[INFO] checking Mic92/vmsh against try#b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b for pr-82781
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FMic92%2Fvmsh" "/workspace/builds/worker-11/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-11/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/Mic92/vmsh on toolchain b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Mic92/vmsh
[INFO] finished tweaking git repo https://github.com/Mic92/vmsh
[INFO] tweaked toml for git repo https://github.com/Mic92/vmsh written to /workspace/builds/worker-11/source/Cargo.toml
[INFO] crate git repo https://github.com/Mic92/vmsh already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rust-vmm/event-manager.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-vmm/rust-vmm-ci.git`
[INFO] [stderr]     Updating git repository `https://github.com/alexandruag/vm-virtio.git`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-vmm/rust-vmm-ci.git`
[INFO] [stderr]     Updating git repository `https://github.com/rust-vmm/vm-device`
[INFO] [stderr]     Updating git submodule `https://github.com/rust-vmm/rust-vmm-ci.git`
[INFO] [stderr] warning: Patch `event-manager v0.2.0 (https://github.com/rust-vmm/event-manager.git?rev=19ddbaa#19ddbaa4)` was not used in the crate graph.
[INFO] [stderr] Check that the patched package version and available features are compatible
[INFO] [stderr] with the dependency requirements. If the patch has a different version from
[INFO] [stderr] what is locked in the Cargo.lock file, run `cargo update` to use the new
[INFO] [stderr] version. This may also occur with an optional dependency that is not enabled.
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 839294c9ffc9faac9bac3fe37ef3c8eb0de6b3a86a8e6d2cdb3de24b9f3b2791
[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" "839294c9ffc9faac9bac3fe37ef3c8eb0de6b3a86a8e6d2cdb3de24b9f3b2791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "839294c9ffc9faac9bac3fe37ef3c8eb0de6b3a86a8e6d2cdb3de24b9f3b2791", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "839294c9ffc9faac9bac3fe37ef3c8eb0de6b3a86a8e6d2cdb3de24b9f3b2791", kill_on_drop: false }`
[INFO] [stdout] 839294c9ffc9faac9bac3fe37ef3c8eb0de6b3a86a8e6d2cdb3de24b9f3b2791
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-11/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=forbid" "-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" "rustops/crates-build-env@sha256:f2f6bcd4b43ebee4e173f653a26493129bdb64017c85f916b780ca7fbdbaa79d" "/opt/rustwide/cargo-home/bin/cargo" "+b09a3e9a7a0ff7efb269ec0c13dcc0fd3cedcf6b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9227134cc9ba543c2b42b8d84ddf5c0bff759bcf4f12e9a24635fe6feb6ad573
[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" "9227134cc9ba543c2b42b8d84ddf5c0bff759bcf4f12e9a24635fe6feb6ad573", kill_on_drop: false }`
[INFO] [stderr] warning: Patch `event-manager v0.2.0 (https://github.com/rust-vmm/event-manager.git?rev=19ddbaa#19ddbaa4)` was not used in the crate graph.
[INFO] [stderr] Check that the patched package version and available features are compatible
[INFO] [stderr] with the dependency requirements. If the patch has a different version from
[INFO] [stderr] what is locked in the Cargo.lock file, run `cargo update` to use the new
[INFO] [stderr] version. This may also occur with an optional dependency that is not enabled.
[INFO] [stderr]    Compiling bitflags v1.2.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling unicode-xid v0.2.1
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling syn v1.0.60
[INFO] [stderr]     Checking byteorder v1.4.2
[INFO] [stderr]     Checking cfg-if v0.1.10
[INFO] [stderr]     Checking once_cell v1.7.2
[INFO] [stderr]    Compiling bcc-sys v0.17.0
[INFO] [stderr]    Compiling getrandom v0.2.2
[INFO] [stderr]     Checking unicode-width v0.1.8
[INFO] [stderr]     Checking vec_map v0.8.2
[INFO] [stderr]     Checking simple-error v0.2.3
[INFO] [stderr]     Checking vm-device v0.1.0 (https://github.com/rust-vmm/vm-device#5847f128)
[INFO] [stderr]     Checking kvm-bindings v0.4.0
[INFO] [stderr]     Checking ppv-lite86 v0.2.10
[INFO] [stderr]     Checking remove_dir_all v0.5.3
[INFO] [stderr]     Checking log v0.4.6
[INFO] [stderr]     Checking textwrap v0.11.0
[INFO] [stderr]     Checking thread_local v1.1.3
[INFO] [stderr]     Checking vm-memory v0.5.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking vmm-sys-util v0.8.0
[INFO] [stderr]     Checking nix v0.20.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking rand_core v0.6.2
[INFO] [stderr]     Checking rand_chacha v0.3.0
[INFO] [stderr]    Compiling quote v1.0.9
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking event-manager v0.2.1
[INFO] [stderr]     Checking vm-virtio v0.1.0 (https://github.com/alexandruag/vm-virtio.git?branch=proto_wip4#e0a0d5dc)
[INFO] [stderr]     Checking rand v0.8.3
[INFO] [stderr]     Checking virtio v0.1.0 (/opt/rustwide/workdir/src/virtio)
[INFO] [stderr]     Checking tempfile v3.2.0
[INFO] [stderr]     Checking regex v1.4.3
[INFO] [stderr]    Compiling thiserror-impl v1.0.24
[INFO] [stderr]     Checking thiserror v1.0.24
[INFO] [stderr]     Checking bcc v0.0.30
[INFO] [stderr]     Checking vmsh v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: variable does not need to be mutable
[INFO] [stdout]   --> src/device/mod.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let mut guard = device_manager.lock().unwrap();
[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: variable does not need to be mutable
[INFO] [stdout]   --> src/device/mod.rs:84:13
[INFO] [stdout]    |
[INFO] [stdout] 84 |         let mut guard = device_manager.lock().unwrap();
[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: field is never read: `mmio_cfg`
[INFO] [stdout]   --> src/device/virtio/block/device.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     mmio_cfg: MmioConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vmm`
[INFO] [stdout]   --> src/device/virtio/block/device.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     vmm: Arc<Hypervisor>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RegisterIoevent`
[INFO] [stdout]   --> src/device/virtio/block/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     RegisterIoevent(errno::Error),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RegisterIrqfd`
[INFO] [stdout]   --> src/device/virtio/block/mod.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     RegisterIrqfd(errno::Error),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VIRTIO_MMIO_QUEUE_NOTIFY_OFFSET`
[INFO] [stdout]   --> src/device/virtio/mod.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | const VIRTIO_MMIO_QUEUE_NOTIFY_OFFSET: u64 = 0x50;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EBDA_START`
[INFO] [stdout]   --> src/device/mod.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | const EBDA_START: u64 = 0x9fc00;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vmm`
[INFO] [stdout]   --> src/device/mod.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     vmm: Arc<Hypervisor>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `blkdev`
[INFO] [stdout]   --> src/device/mod.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     blkdev: Arc<Mutex<Block>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mmio_cfg`
[INFO] [stdout]   --> src/device/virtio/block/device.rs:36:5
[INFO] [stdout]    |
[INFO] [stdout] 36 |     mmio_cfg: MmioConfig,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vmm`
[INFO] [stdout]   --> src/device/virtio/block/device.rs:38:5
[INFO] [stdout]    |
[INFO] [stdout] 38 |     vmm: Arc<Hypervisor>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RegisterIoevent`
[INFO] [stdout]   --> src/device/virtio/block/mod.rs:45:5
[INFO] [stdout]    |
[INFO] [stdout] 45 |     RegisterIoevent(errno::Error),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: variant is never constructed: `RegisterIrqfd`
[INFO] [stdout]   --> src/device/virtio/block/mod.rs:46:5
[INFO] [stdout]    |
[INFO] [stdout] 46 |     RegisterIrqfd(errno::Error),
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `VIRTIO_MMIO_QUEUE_NOTIFY_OFFSET`
[INFO] [stdout]   --> src/device/virtio/mod.rs:40:1
[INFO] [stdout]    |
[INFO] [stdout] 40 | const VIRTIO_MMIO_QUEUE_NOTIFY_OFFSET: u64 = 0x50;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: constant is never used: `EBDA_START`
[INFO] [stdout]   --> src/device/mod.rs:22:1
[INFO] [stdout]    |
[INFO] [stdout] 22 | const EBDA_START: u64 = 0x9fc00;
[INFO] [stdout]    | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `vmm`
[INFO] [stdout]   --> src/device/mod.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     vmm: Arc<Hypervisor>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `blkdev`
[INFO] [stdout]   --> src/device/mod.rs:68:5
[INFO] [stdout]    |
[INFO] [stdout] 68 |     blkdev: Arc<Mutex<Block>>,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 9 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 35.31s
[INFO] running `Command { std: "docker" "inspect" "9227134cc9ba543c2b42b8d84ddf5c0bff759bcf4f12e9a24635fe6feb6ad573", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9227134cc9ba543c2b42b8d84ddf5c0bff759bcf4f12e9a24635fe6feb6ad573", kill_on_drop: false }`
[INFO] [stdout] 9227134cc9ba543c2b42b8d84ddf5c0bff759bcf4f12e9a24635fe6feb6ad573