[INFO] cloning repository https://github.com/RamneekSingh24/RustFlappy
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/RamneekSingh24/RustFlappy" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamneekSingh24%2FRustFlappy", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamneekSingh24%2FRustFlappy'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 6825f2a6621d0ee1e8809aa9f5a19d9d943e68b5
[INFO] testing RamneekSingh24/RustFlappy/6825f2a6621d0ee1e8809aa9f5a19d9d943e68b5 against master#61223975d46f794466efa832bc7562b9707ecc46+rustflags=-Copt-level=3 for pr-121282
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FRamneekSingh24%2FRustFlappy" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/RamneekSingh24/RustFlappy on toolchain 61223975d46f794466efa832bc7562b9707ecc46
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/RamneekSingh24/RustFlappy
[INFO] finished tweaking git repo https://github.com/RamneekSingh24/RustFlappy
[INFO] tweaked toml for git repo https://github.com/RamneekSingh24/RustFlappy written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/RamneekSingh24/RustFlappy 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" "+61223975d46f794466efa832bc7562b9707ecc46" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ultraviolet v0.9.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+61223975d46f794466efa832bc7562b9707ecc46" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 89a73b4ea3094d6269564121919bad754990775935c99d4f1a5f536310f47f6a
[INFO] running `Command { std: "docker" "start" "-a" "89a73b4ea3094d6269564121919bad754990775935c99d4f1a5f536310f47f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "89a73b4ea3094d6269564121919bad754990775935c99d4f1a5f536310f47f6a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "89a73b4ea3094d6269564121919bad754990775935c99d4f1a5f536310f47f6a", kill_on_drop: false }`
[INFO] [stdout] 89a73b4ea3094d6269564121919bad754990775935c99d4f1a5f536310f47f6a
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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=forbid -Copt-level=3" "-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" "+61223975d46f794466efa832bc7562b9707ecc46" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb5c9a76a8201a72dc57e52df1e61182f5dfe436c20f7d64e9125393350b844b
[INFO] running `Command { std: "docker" "start" "-a" "fb5c9a76a8201a72dc57e52df1e61182f5dfe436c20f7d64e9125393350b844b", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling proc-macro2 v1.0.49
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling lazy_static v1.4.0
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling bytemuck v1.12.3
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling once_cell v1.16.0
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling scoped-tls v1.0.1
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling downcast-rs v1.2.0
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]    Compiling servo-fontconfig-sys v5.1.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling minimal-lexical v0.2.1
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling safe_arch v0.6.0
[INFO] [stderr]    Compiling crossfont v0.5.1
[INFO] [stderr]    Compiling smithay-client-toolkit v0.16.0
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling flate2 v1.0.25
[INFO] [stderr]    Compiling nom v7.1.1
[INFO] [stderr]    Compiling gl_generator v0.14.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.49/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]    Compiling x11-dl v2.20.1
[INFO] [stderr]    Compiling instant v0.1.12
[INFO] [stderr]    Compiling vec_map v0.8.2
[INFO] [stderr]    Compiling arrayref v0.3.6
[INFO] [stderr]    Compiling foreign-types-shared v0.3.1
[INFO] [stderr]    Compiling tiny-skia-path v0.7.0
[INFO] [stderr]    Compiling wide v0.7.5
[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" "fb5c9a76a8201a72dc57e52df1e61182f5dfe436c20f7d64e9125393350b844b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb5c9a76a8201a72dc57e52df1e61182f5dfe436c20f7d64e9125393350b844b", kill_on_drop: false }`
[INFO] [stdout] fb5c9a76a8201a72dc57e52df1e61182f5dfe436c20f7d64e9125393350b844b