[INFO] fetching crate contrast_renderer 0.1.2...
[INFO] checking contrast_renderer-0.1.2 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] extracting crate contrast_renderer 0.1.2 into /workspace/builds/worker-0-tc1/source
[INFO] validating manifest of crates.io crate contrast_renderer 0.1.2 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate contrast_renderer 0.1.2
[INFO] finished tweaking crates.io crate contrast_renderer 0.1.2
[INFO] tweaked toml for crates.io crate contrast_renderer 0.1.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate crates.io crate contrast_renderer 0.1.2 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded x11-dl v2.20.0
[INFO] [stderr]   Downloaded foreign-types-macros v0.2.2
[INFO] [stderr]   Downloaded console_log v0.1.2
[INFO] [stderr]   Downloaded gpu-descriptor v0.2.3
[INFO] [stderr]   Downloaded calloop v0.10.1
[INFO] [stderr]   Downloaded sctk-adwaita v0.4.2
[INFO] [stderr]   Downloaded raw-window-handle v0.5.0
[INFO] [stderr]   Downloaded profiling v1.0.7
[INFO] [stderr]   Downloaded crossfont v0.5.0
[INFO] [stderr]   Downloaded miniz_oxide v0.6.4
[INFO] [stderr]   Downloaded serde_derive v1.0.145
[INFO] [stderr]   Downloaded wgpu v0.17.0
[INFO] [stderr]   Downloaded serde v1.0.145
[INFO] [stderr]   Downloaded ttf-parser v0.14.0
[INFO] [stderr]   Downloaded memmap2 v0.5.7
[INFO] [stderr]   Downloaded wgpu-core v0.17.0
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded wgpu-hal v0.17.0
[INFO] [stderr]   Downloaded syn v1.0.102
[INFO] [stderr]   Downloaded winit v0.27.3
[INFO] [stderr]   Downloaded gimli v0.27.1
[INFO] [stderr]   Downloaded geometric_algebra v0.2.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 9b3d51f482a2e8132562b32f51ed6c502fc76c5ac1beced08231ea4821de655b
[INFO] running `Command { std: "docker" "start" "-a" "9b3d51f482a2e8132562b32f51ed6c502fc76c5ac1beced08231ea4821de655b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "9b3d51f482a2e8132562b32f51ed6c502fc76c5ac1beced08231ea4821de655b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9b3d51f482a2e8132562b32f51ed6c502fc76c5ac1beced08231ea4821de655b", kill_on_drop: false }`
[INFO] [stdout] 9b3d51f482a2e8132562b32f51ed6c502fc76c5ac1beced08231ea4821de655b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 4c051183321057d6395e3c6f7ff0fe985187c2f3d6b1bd723d8336d8c16c7e98
[INFO] running `Command { std: "docker" "start" "-a" "4c051183321057d6395e3c6f7ff0fe985187c2f3d6b1bd723d8336d8c16c7e98", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]     Checking once_cell v1.15.0
[INFO] [stderr]    Compiling syn v1.0.102
[INFO] [stderr]     Checking libloading v0.7.3
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling thiserror v1.0.37
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/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 bitflags v2.3.1
[INFO] [stderr]    Compiling cmake v0.1.48
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking cty v0.2.2
[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" "4c051183321057d6395e3c6f7ff0fe985187c2f3d6b1bd723d8336d8c16c7e98", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4c051183321057d6395e3c6f7ff0fe985187c2f3d6b1bd723d8336d8c16c7e98", kill_on_drop: false }`
[INFO] [stdout] 4c051183321057d6395e3c6f7ff0fe985187c2f3d6b1bd723d8336d8c16c7e98