[INFO] fetching crate four-bar-ui 4.0.0...
[INFO] checking four-bar-ui-4.0.0 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate four-bar-ui 4.0.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate four-bar-ui 4.0.0 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate four-bar-ui 4.0.0
[INFO] finished tweaking crates.io crate four-bar-ui 4.0.0
[INFO] tweaked toml for crates.io crate four-bar-ui 4.0.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate four-bar-ui 4.0.0 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rfd v0.11.3
[INFO] [stderr]   Downloaded system-deps v6.0.4
[INFO] [stderr]   Downloaded cfg-expr v0.14.0
[INFO] [stderr]   Downloaded indicatif v0.17.3
[INFO] [stderr]   Downloaded polling v2.7.0
[INFO] [stderr]   Downloaded dconf_rs v0.3.0
[INFO] [stderr]   Downloaded enumflags2 v0.7.6
[INFO] [stderr]   Downloaded zvariant_derive v3.12.0
[INFO] [stderr]   Downloaded dark-light v1.0.0
[INFO] [stderr]   Downloaded ecolor v0.21.0
[INFO] [stderr]   Downloaded zbus_names v2.5.0
[INFO] [stderr]   Downloaded zbus_macros v3.11.1
[INFO] [stderr]   Downloaded accesskit v0.9.0
[INFO] [stderr]   Downloaded zvariant v3.12.0
[INFO] [stderr]   Downloaded glutin v0.30.7
[INFO] [stderr]   Downloaded zbus v3.11.1
[INFO] [stderr]   Downloaded nalgebra v0.32.2
[INFO] [stderr]   Downloaded egui v0.21.0
[INFO] [stderr]   Downloaded detect-desktop-environment v0.2.0
[INFO] [stderr]   Downloaded epaint v0.21.0
[INFO] [stderr]   Downloaded csv v1.2.1
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] [stderr]   Downloaded tiny-skia v0.8.3
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded syn v2.0.13
[INFO] [stderr]   Downloaded portable-atomic v0.3.19
[INFO] [stderr]   Downloaded tiny-skia-path v0.8.3
[INFO] [stderr]   Downloaded webbrowser v0.8.9
[INFO] [stderr]   Downloaded enumn v0.1.8
[INFO] [stderr]   Downloaded egui_glow v0.21.0
[INFO] [stderr]   Downloaded eframe v0.21.3
[INFO] [stderr]   Downloaded interp v1.0.1
[INFO] [stderr]   Downloaded glutin_egl_sys v0.4.0
[INFO] [stderr]   Downloaded efd v2.2.2
[INFO] [stderr]   Downloaded metaheuristics-nature v8.0.4
[INFO] [stderr]   Downloaded four-bar v4.0.0
[INFO] [stderr]   Downloaded enumflags2_derive v0.7.6
[INFO] [stderr]   Downloaded zvariant_utils v1.0.0
[INFO] [stderr]   Downloaded egui-winit v0.21.1
[INFO] [stderr]   Downloaded atomic_refcell v0.1.9
[INFO] [stderr]   Downloaded emath v0.21.0
[INFO] [stderr]   Downloaded nalgebra-macros v0.2.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4c9bd38dcc276980de9b9db62bdc7100476baae95fbd18468efc6fe5f75f26de
[INFO] running `Command { std: "docker" "start" "-a" "4c9bd38dcc276980de9b9db62bdc7100476baae95fbd18468efc6fe5f75f26de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4c9bd38dcc276980de9b9db62bdc7100476baae95fbd18468efc6fe5f75f26de", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c9bd38dcc276980de9b9db62bdc7100476baae95fbd18468efc6fe5f75f26de", kill_on_drop: false }`
[INFO] [stdout] 4c9bd38dcc276980de9b9db62bdc7100476baae95fbd18468efc6fe5f75f26de
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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" "-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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6700608b2c495f80d2ca6b9484cf7a73bffc40e054785e669496d18adef3f851
[INFO] running `Command { std: "docker" "start" "-a" "6700608b2c495f80d2ca6b9484cf7a73bffc40e054785e669496d18adef3f851", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde_derive v1.0.159
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling winnow v0.4.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.56/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]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling cfg-expr v0.14.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[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" "6700608b2c495f80d2ca6b9484cf7a73bffc40e054785e669496d18adef3f851", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6700608b2c495f80d2ca6b9484cf7a73bffc40e054785e669496d18adef3f851", kill_on_drop: false }`
[INFO] [stdout] 6700608b2c495f80d2ca6b9484cf7a73bffc40e054785e669496d18adef3f851
