[INFO] cloning repository https://github.com/A-K-O-R-A/mandelbrot_gpu
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/A-K-O-R-A/mandelbrot_gpu" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA-K-O-R-A%2Fmandelbrot_gpu", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA-K-O-R-A%2Fmandelbrot_gpu'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 5bca5fb4b105bdbe73817ed477008820c1113272
[INFO] checking A-K-O-R-A/mandelbrot_gpu against try#a3dffdb3a32d0dedc198f9de7d43173f3eb6727b for pr-136303
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FA-K-O-R-A%2Fmandelbrot_gpu" "/workspace/builds/worker-0-tc2/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc2/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/A-K-O-R-A/mandelbrot_gpu on toolchain a3dffdb3a32d0dedc198f9de7d43173f3eb6727b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/A-K-O-R-A/mandelbrot_gpu
[INFO] finished tweaking git repo https://github.com/A-K-O-R-A/mandelbrot_gpu
[INFO] tweaked toml for git repo https://github.com/A-K-O-R-A/mandelbrot_gpu written to /workspace/builds/worker-0-tc2/source/Cargo.toml
[INFO] crate git repo https://github.com/A-K-O-R-A/mandelbrot_gpu 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" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] fb9a3ce9d817aaa23aa9f3f4282831a0c8598a1cf2c2413c1b744e1e52bcfca3
[INFO] running `Command { std: "docker" "start" "-a" "fb9a3ce9d817aaa23aa9f3f4282831a0c8598a1cf2c2413c1b744e1e52bcfca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "fb9a3ce9d817aaa23aa9f3f4282831a0c8598a1cf2c2413c1b744e1e52bcfca3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb9a3ce9d817aaa23aa9f3f4282831a0c8598a1cf2c2413c1b744e1e52bcfca3", kill_on_drop: false }`
[INFO] [stdout] fb9a3ce9d817aaa23aa9f3f4282831a0c8598a1cf2c2413c1b744e1e52bcfca3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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" "-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:c80049f3b88b82089a44e0f06d0d6029d44b96b7257e55a1cd63dbc9f4c33334" "/opt/rustwide/cargo-home/bin/cargo" "+a3dffdb3a32d0dedc198f9de7d43173f3eb6727b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] c6ba5eae6078db697320d082719696e9d861274497de7605b836b65ed45fc7f9
[INFO] running `Command { std: "docker" "start" "-a" "c6ba5eae6078db697320d082719696e9d861274497de7605b836b65ed45fc7f9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]     Checking termcolor v1.2.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking minimal-lexical v0.2.1
[INFO] [stderr]     Checking cty v0.2.2
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking miniz_oxide v0.6.2
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking unicode-width v0.1.10
[INFO] [stderr]    Compiling khronos-egl v4.1.0
[INFO] [stderr]    Compiling io-lifetimes v1.0.5
[INFO] [stderr]    Compiling ash v0.37.2+1.3.238
[INFO] [stderr]     Checking raw-window-handle v0.5.0
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]     Checking gpu-descriptor-types v0.1.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 bit-set v0.5.3
[INFO] [stderr]     Checking codespan-reporting v0.11.1
[INFO] [stderr]     Checking gpu-alloc-types v0.2.0
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]     Checking nom v7.1.3
[INFO] [stderr]     Checking unicode-xid v0.2.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]     Checking hexf-parse v0.2.1
[INFO] [stderr] error: could not compile `proc-macro2` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "c6ba5eae6078db697320d082719696e9d861274497de7605b836b65ed45fc7f9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c6ba5eae6078db697320d082719696e9d861274497de7605b836b65ed45fc7f9", kill_on_drop: false }`
[INFO] [stdout] c6ba5eae6078db697320d082719696e9d861274497de7605b836b65ed45fc7f9
