[INFO] cloning repository https://github.com/arcnmx/screenstub
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/arcnmx/screenstub" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcnmx%2Fscreenstub", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcnmx%2Fscreenstub'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 20c0aa961fa92c00ac4d722337c55b5cbace3675
[INFO] checking arcnmx/screenstub against master#3aedcf06b73fc36feeebca3d579e1d2a6c40acc5 for pr-65819
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcnmx%2Fscreenstub" "/workspace/builds/worker-3/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-3/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arcnmx/screenstub on toolchain 3aedcf06b73fc36feeebca3d579e1d2a6c40acc5
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/arcnmx/screenstub
[INFO] finished tweaking git repo https://github.com/arcnmx/screenstub
[INFO] tweaked toml for git repo https://github.com/arcnmx/screenstub written to /workspace/builds/worker-3/source/Cargo.toml
[INFO] crate git repo https://github.com/arcnmx/screenstub already has a lockfile, it will not be regenerated
[INFO] running `Command { std: "/workspace/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "fetch" "--locked" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "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] d2477fa67951bfd7bd2493e4ef9ddc6bc6e32d200d9aaa204e09fe564432473c
[INFO] running `Command { std: "docker" "start" "-a" "d2477fa67951bfd7bd2493e4ef9ddc6bc6e32d200d9aaa204e09fe564432473c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d2477fa67951bfd7bd2493e4ef9ddc6bc6e32d200d9aaa204e09fe564432473c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d2477fa67951bfd7bd2493e4ef9ddc6bc6e32d200d9aaa204e09fe564432473c", kill_on_drop: false }`
[INFO] [stdout] d2477fa67951bfd7bd2493e4ef9ddc6bc6e32d200d9aaa204e09fe564432473c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3/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:c46a2d1a26fb48b37929c74ca49dd9409f2375a0a3bdb8fe07617f3ffccaa889" "/opt/rustwide/cargo-home/bin/cargo" "+3aedcf06b73fc36feeebca3d579e1d2a6c40acc5" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] d9093bf9b8672a40c93119c2c3ee0766af910d04101f7dc687503419a2de277d
[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" "d9093bf9b8672a40c93119c2c3ee0766af910d04101f7dc687503419a2de277d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.24
[INFO] [stderr]    Compiling syn v1.0.54
[INFO] [stderr]    Compiling libc v0.2.81
[INFO] [stderr]    Compiling serde_derive v1.0.118
[INFO] [stderr]    Compiling serde v1.0.118
[INFO] [stderr]    Compiling memchr v2.3.4
[INFO] [stderr]    Compiling autocfg v1.0.1
[INFO] [stderr]    Compiling log v0.4.11
[INFO] [stderr]    Compiling ryu v1.0.5
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]     Checking futures-core v0.3.8
[INFO] [stderr]     Checking futures-sink v0.3.8
[INFO] [stderr]    Compiling serde_json v1.0.60
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling proc-macro-nested v0.1.6
[INFO] [stderr]     Checking bytes v0.6.0
[INFO] [stderr]    Compiling itoa v0.4.6
[INFO] [stderr]     Checking pin-project-lite v0.2.0
[INFO] [stderr]    Compiling byteorder v1.3.4
[INFO] [stderr]     Checking once_cell v1.5.2
[INFO] [stderr]     Checking gimli v0.23.0
[INFO] [stderr]     Checking pin-utils v0.1.0
[INFO] [stderr]     Checking futures-io v0.3.8
[INFO] [stderr]     Checking adler v0.2.3
[INFO] [stderr]    Compiling failure_derive v0.1.8
[INFO] [stderr]     Checking object v0.22.0
[INFO] [stderr]     Checking rustc-demangle v0.1.18
[INFO] [stderr]    Compiling pkg-config v0.3.19
[INFO] [stderr]     Checking base64 v0.13.0
[INFO] [stderr]    Compiling uninitialized v0.0.2
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking linked-hash-map v0.5.3
[INFO] [stderr]     Checking dtoa v0.4.6
[INFO] [stderr]     Checking screenstub-fd v0.0.1 (/opt/rustwide/workdir/fd)
[INFO] [stderr]     Checking humantime v2.0.1
[INFO] [stderr]     Checking nodrop v0.1.14
[INFO] [stderr]    Compiling ddc-hi v0.3.0
[INFO] [stderr]     Checking regex-syntax v0.6.21
[INFO] [stderr]     Checking smallvec v1.5.1
[INFO] [stderr]     Checking termcolor v1.1.2
[INFO] [stderr]     Checking result v1.0.0
[INFO] [stderr]     Checking thread_local v1.0.1
[INFO] [stderr]     Checking futures-channel v0.3.8
[INFO] [stderr]     Checking futures-task v0.3.8
[INFO] [stderr]     Checking mccs v0.1.0
[INFO] [stderr]     Checking array-init v0.0.4
[INFO] [stderr]    Compiling tokio v0.3.5
[INFO] [stderr]    Compiling miniz_oxide v0.4.3
[INFO] [stderr]     Checking yaml-rust v0.4.4
[INFO] [stderr]     Checking i2c v0.1.0
[INFO] [stderr]     Checking ddc v0.2.2
[INFO] [stderr]     Checking csv-core v0.1.10
[INFO] [stderr]     Checking aho-corasick v0.7.15
[INFO] [stderr]     Checking resize-slice v0.1.3
[INFO] [stderr]    Compiling libudev-sys v0.1.4
[INFO] [stderr]     Checking regex-automata v0.1.9
[INFO] [stderr]    Compiling quote v1.0.7
[INFO] [stderr]     Checking regex v1.4.2
[INFO] [stderr]     Checking num_cpus v1.13.0
[INFO] [stderr]     Checking mio v0.7.6
[INFO] [stderr]     Checking signal-hook-registry v1.2.2
[INFO] [stderr]     Checking nix v0.19.1
[INFO] [stderr]     Checking memchr v1.0.2
[INFO] [stderr]     Checking i2c-linux-sys v0.2.0
[INFO] [stderr]     Checking atty v0.2.14
[INFO] [stderr]     Checking udev v0.2.0
[INFO] [stderr]     Checking clap v2.33.3
[INFO] [stderr]     Checking nom v3.2.1
[INFO] [stderr]     Checking addr2line v0.14.0
[INFO] [stderr]     Checking i2c-linux v0.1.2
[INFO] [stderr]     Checking backtrace v0.3.55
[INFO] [stderr]     Checking ddc-i2c v0.2.1
[INFO] [stderr]    Compiling xcb v0.9.0
[INFO] [stderr]     Checking env_logger v0.8.2
[INFO] [stderr]     Checking mccs-caps v0.1.0
[INFO] [stderr]     Checking edid v0.3.0
[INFO] [stderr]     Checking input-linux-sys v0.6.0
[INFO] [stderr]    Compiling synstructure v0.12.4
[INFO] [stderr]    Compiling tokio-macros v0.3.1
[INFO] [stderr]    Compiling pin-project-internal v1.0.2
[INFO] [stderr]    Compiling futures-macro v0.3.8
[INFO] [stderr]    Compiling enumflags2_derive v0.6.4
[INFO] [stderr]     Checking enumflags2 v0.6.4
[INFO] [stderr]     Checking failure v0.1.8
[INFO] [stderr]     Checking pin-project v1.0.2
[INFO] [stderr]     Checking futures-util v0.3.8
[INFO] [stderr]     Checking tokio-util v0.5.1
[INFO] [stderr]     Checking futures-executor v0.3.8
[INFO] [stderr]     Checking futures v0.3.8
[INFO] [stderr]     Checking input-linux v0.4.0
[INFO] [stderr]     Checking serde_yaml v0.7.5
[INFO] [stderr]     Checking bstr v0.2.14
[INFO] [stderr]     Checking humantime-serde v1.0.1
[INFO] [stderr]     Checking serde-hex v0.1.0
[INFO] [stderr]     Checking serde_yaml v0.8.14
[INFO] [stderr]     Checking mccs-db v0.1.2
[INFO] [stderr]     Checking csv v1.1.5
[INFO] [stderr]     Checking qapi-spec v0.3.1
[INFO] [stderr]     Checking screenstub-ddc v0.0.1 (/opt/rustwide/workdir/ddc)
[INFO] [stderr]    Compiling qapi-parser v0.5.0
[INFO] [stderr]    Compiling qapi-codegen v0.5.0
[INFO] [stderr]    Compiling qapi-qmp v0.7.0
[INFO] [stderr]    Compiling qapi-qga v0.7.0
[INFO] [stderr]     Checking screenstub-x v0.0.1 (/opt/rustwide/workdir/x)
[INFO] [stderr]     Checking screenstub-uinput v0.0.1 (/opt/rustwide/workdir/uinput)
[INFO] [stdout] warning: unused variable: `new`
[INFO] [stdout]    --> x/src/lib.rs:564:38
[INFO] [stdout]     |
[INFO] [stdout] 564 |                     .filter(|&&(dim, new, _)| dim != 0)
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_new`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]    --> x/src/lib.rs:658:41
[INFO] [stdout]     |
[INFO] [stdout] 658 |     fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
[INFO] [stdout]     |                                         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `new`
[INFO] [stdout]    --> x/src/lib.rs:564:38
[INFO] [stdout]     |
[INFO] [stdout] 564 |                     .filter(|&&(dim, new, _)| dim != 0)
[INFO] [stdout]     |                                      ^^^ help: if this is intentional, prefix it with an underscore: `_new`
[INFO] [stdout]     |
[INFO] [stdout]     = note: `#[warn(unused_variables)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: unused variable: `cx`
[INFO] [stdout]    --> x/src/lib.rs:658:41
[INFO] [stdout]     |
[INFO] [stdout] 658 |     fn poll_ready(self: Pin<&mut Self>, cx: &mut Context<'_>) -> Poll<Result<(), Self::Error>> {
[INFO] [stdout]     |                                         ^^ help: if this is intentional, prefix it with an underscore: `_cx`
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: field is never read: `mods`
[INFO] [stdout]   --> x/src/lib.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     mods: xcb::GetModifierMappingReply,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x_keysym`
[INFO] [stdout]    --> x/src/lib.rs:539:8
[INFO] [stdout]     |
[INFO] [stdout] 539 |     fn x_keysym(_key: xcb::Keysym) -> Option<Key> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking screenstub-event v0.0.1 (/opt/rustwide/workdir/event)
[INFO] [stdout] warning: field is never read: `mods`
[INFO] [stdout]   --> x/src/lib.rs:67:5
[INFO] [stdout]    |
[INFO] [stdout] 67 |     mods: xcb::GetModifierMappingReply,
[INFO] [stdout]    |     ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout]    = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: associated function is never used: `x_keysym`
[INFO] [stdout]    --> x/src/lib.rs:539:8
[INFO] [stdout]     |
[INFO] [stdout] 539 |     fn x_keysym(_key: xcb::Keysym) -> Option<Key> {
[INFO] [stdout]     |        ^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 4 warnings emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking qapi v0.7.0
[INFO] [stderr]     Checking screenstub-config v0.0.1 (/opt/rustwide/workdir/config)
[INFO] [stderr]     Checking screenstub-qemu v0.0.1 (/opt/rustwide/workdir/qemu)
[INFO] [stderr]     Checking screenstub v0.1.0 (/opt/rustwide/workdir)
[INFO] [stdout] warning: function is never used: `retry`
[INFO] [stdout]  --> src/util.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn retry<R, E: Into<Error>, F: Future<Output=Result<R, E>>, FF: FnMut() -> F>(mut f: FF, retries: usize, timeout: Duration) -> impl F...
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: function is never used: `retry`
[INFO] [stdout]  --> src/util.rs:8:8
[INFO] [stdout]   |
[INFO] [stdout] 8 | pub fn retry<R, E: Into<Error>, F: Future<Output=Result<R, E>>, FF: FnMut() -> F>(mut f: FF, retries: usize, timeout: Duration) -> impl F...
[INFO] [stdout]   |        ^^^^^
[INFO] [stdout]   |
[INFO] [stdout]   = note: `#[warn(dead_code)]` on by default
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] warning: 1 warning emitted
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Finished dev [unoptimized + debuginfo] target(s) in 2m 56s
[INFO] running `Command { std: "docker" "inspect" "d9093bf9b8672a40c93119c2c3ee0766af910d04101f7dc687503419a2de277d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d9093bf9b8672a40c93119c2c3ee0766af910d04101f7dc687503419a2de277d", kill_on_drop: false }`
[INFO] [stdout] d9093bf9b8672a40c93119c2c3ee0766af910d04101f7dc687503419a2de277d