[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] 7e1add0f06a78d465abe004f0c08e69bd060e68f
[INFO] checking arcnmx/screenstub against master#8424f8e8cdf07010967a57584fd647b30e930d4d for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcnmx%2Fscreenstub" "/workspace/builds/worker-5-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arcnmx/screenstub on toolchain 8424f8e8cdf07010967a57584fd647b30e930d4d
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "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-5-tc1/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+8424f8e8cdf07010967a57584fd647b30e930d4d" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[ERROR] error running command: no output for 300 seconds
[ERROR] this task or one of its parent failed!
[ERROR] no output for 300 seconds
[ERROR] note: run with `RUST_BACKTRACE=1` to display a backtrace.
[INFO] checking arcnmx/screenstub against try#047472f299946caf090d1b5608ae4bd9f0416256+rustflags=-Ddereferencing_mut_binding for pr-120095
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Farcnmx%2Fscreenstub" "/workspace/builds/worker-5-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-5-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/arcnmx/screenstub on toolchain 047472f299946caf090d1b5608ae4bd9f0416256
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "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-5-tc2/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: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded input-linux v0.6.0
[INFO] [stderr]   Downloaded qapi-parser v0.9.1
[INFO] [stderr]   Downloaded qapi-spec v0.3.1
[INFO] [stderr]   Downloaded qapi v0.11.0
[INFO] [stderr]   Downloaded nvapi-sys v0.1.3
[INFO] [stderr]   Downloaded result v1.0.0
[INFO] [stderr]   Downloaded i2c v0.1.0
[INFO] [stderr]   Downloaded ddc-i2c v0.2.2
[INFO] [stderr]   Downloaded resize-slice v0.1.3
[INFO] [stderr]   Downloaded ddc v0.2.2
[INFO] [stderr]   Downloaded i2c-linux-sys v0.2.1
[INFO] [stderr]   Downloaded i2c-linux v0.1.2
[INFO] [stderr]   Downloaded ddc-hi v0.4.1
[INFO] [stderr]   Downloaded mccs-db v0.1.3
[INFO] [stderr]   Downloaded input-linux-sys v0.8.0
[INFO] [stderr]   Downloaded ddc-macos v0.2.0
[INFO] [stderr]   Downloaded udev v0.2.0
[INFO] [stderr]   Downloaded nvapi v0.1.4
[INFO] [stderr]   Downloaded mccs-caps v0.1.3
[INFO] [stderr]   Downloaded edid v0.3.0
[INFO] [stderr]   Downloaded ddc-winapi v0.2.1
[INFO] [stderr]   Downloaded mccs v0.1.3
[INFO] [stderr]   Downloaded ddcutil-sys v0.0.3
[INFO] [stderr]   Downloaded ddcutil v0.0.3
[INFO] [stderr]   Downloaded qapi-codegen v0.10.2
[INFO] [stderr]   Downloaded qapi-qga v0.10.1
[INFO] [stderr]   Downloaded qapi-qmp v0.11.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a7577a1f7996cd371c68f86fa4c93dddc955814c8aa7e50e3986f99414a4472e
[INFO] running `Command { std: "docker" "start" "-a" "a7577a1f7996cd371c68f86fa4c93dddc955814c8aa7e50e3986f99414a4472e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a7577a1f7996cd371c68f86fa4c93dddc955814c8aa7e50e3986f99414a4472e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a7577a1f7996cd371c68f86fa4c93dddc955814c8aa7e50e3986f99414a4472e", kill_on_drop: false }`
[INFO] [stdout] a7577a1f7996cd371c68f86fa4c93dddc955814c8aa7e50e3986f99414a4472e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc2/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 -Ddereferencing_mut_binding" "-e" "RUSTDOCFLAGS=--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" "ghcr.io/rust-lang/crates-build-env/linux@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+047472f299946caf090d1b5608ae4bd9f0416256" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e843c2e6ae6960307c63fa231614f228950b2c98dac35e6db525cc479481ec36
[INFO] running `Command { std: "docker" "start" "-a" "e843c2e6ae6960307c63fa231614f228950b2c98dac35e6db525cc479481ec36", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling serde_json v1.0.95
[INFO] [stderr]    Compiling tokio v1.27.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling ryu v1.0.13
[INFO] [stderr]    Compiling futures-task v0.3.28
[INFO] [stderr]    Compiling futures-channel v0.3.28
[INFO] [stderr]    Compiling itoa v1.0.6
[INFO] [stderr]    Compiling futures-util v0.3.28
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking static_assertions v1.1.0
[INFO] [stderr]     Checking futures-io v0.3.28
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking void v1.0.2
[INFO] [stderr]     Checking base64 v0.13.1
[INFO] [stderr]    Compiling uninitialized v0.0.2
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stderr]     Checking mccs v0.1.3
[INFO] [stderr]     Checking linked-hash-map v0.5.6
[INFO] [stderr]    Compiling rustix v0.37.8
[INFO] [stderr]     Checking linux-raw-sys v0.3.1
[INFO] [stderr]     Checking screenstub-fd v0.0.1 (/opt/rustwide/workdir/fd)
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]     Checking tracing v0.1.37
[INFO] [stderr]    Compiling maybe-uninit v2.0.0
[INFO] [stderr]     Checking yaml-rust v0.4.5
[INFO] [stderr]     Checking i2c v0.1.0
[INFO] [stderr]     Checking dtoa v0.4.8
[INFO] [stderr]    Compiling ddc-hi v0.4.1
[INFO] [stderr]     Checking ddc v0.2.2
[INFO] [stderr]     Checking humantime v2.1.0
[INFO] [stderr]     Checking resize-slice v0.1.3
[INFO] [stdout] error: aborting due to 1 previous error
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 2 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "e843c2e6ae6960307c63fa231614f228950b2c98dac35e6db525cc479481ec36", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e843c2e6ae6960307c63fa231614f228950b2c98dac35e6db525cc479481ec36", kill_on_drop: false }`
[INFO] [stdout] e843c2e6ae6960307c63fa231614f228950b2c98dac35e6db525cc479481ec36