[INFO] cloning repository https://github.com/rustytsuki/egui_skia_auto_fallback_demo
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/rustytsuki/egui_skia_auto_fallback_demo" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustytsuki%2Fegui_skia_auto_fallback_demo", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustytsuki%2Fegui_skia_auto_fallback_demo'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] eb341c907a1dd3953323771545c975865aea1eca
[INFO] checking rustytsuki/egui_skia_auto_fallback_demo/eb341c907a1dd3953323771545c975865aea1eca against master#a932eb36f8adf6c8cdfc450f063943da3112d621 for pr-140209-1
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Frustytsuki%2Fegui_skia_auto_fallback_demo" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] validating manifest of git repo https://github.com/rustytsuki/egui_skia_auto_fallback_demo on toolchain a932eb36f8adf6c8cdfc450f063943da3112d621
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/rustytsuki/egui_skia_auto_fallback_demo
[INFO] finished tweaking git repo https://github.com/rustytsuki/egui_skia_auto_fallback_demo
[INFO] tweaked toml for git repo https://github.com/rustytsuki/egui_skia_auto_fallback_demo written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/rustytsuki/egui_skia_auto_fallback_demo 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" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating git repository `https://github.com/rustytsuki/egui`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded softbuffer v0.2.0
[INFO] [stderr]   Downloaded glutin v0.30.4
[INFO] [stderr]   Downloaded webbrowser v0.8.7
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 8e37a1159b3ec06e421bfb744c708af6f0060d5045707123ca88bdcf1da4163a
[INFO] running `Command { std: "docker" "start" "-a" "8e37a1159b3ec06e421bfb744c708af6f0060d5045707123ca88bdcf1da4163a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "8e37a1159b3ec06e421bfb744c708af6f0060d5045707123ca88bdcf1da4163a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8e37a1159b3ec06e421bfb744c708af6f0060d5045707123ca88bdcf1da4163a", kill_on_drop: false }`
[INFO] [stdout] 8e37a1159b3ec06e421bfb744c708af6f0060d5045707123ca88bdcf1da4163a
[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:b0b074c097205a61b89e8ad263052f976b2b332c4dc5f02aef1fe52501660d6e" "/opt/rustwide/cargo-home/bin/cargo" "+a932eb36f8adf6c8cdfc450f063943da3112d621" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 74bfbca3b56757fcd5cb22928a2bee6903ea9f21b1ea72d6080d881c32801429
[INFO] running `Command { std: "docker" "start" "-a" "74bfbca3b56757fcd5cb22928a2bee6903ea9f21b1ea72d6080d881c32801429", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]     Checking bitflags v1.3.2
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]     Checking once_cell v1.17.0
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]     Checking libloading v0.7.4
[INFO] [stderr]     Checking lazy_static v1.4.0
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]     Checking dlib v0.5.0
[INFO] [stderr]    Compiling khronos_api v3.1.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]    Compiling cfg_aliases v0.1.1
[INFO] [stderr]    Compiling parking_lot_core v0.9.7
[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]    Compiling tinyvec_macros v0.1.1
[INFO] [stderr]    Compiling glob v0.3.1
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking ttf-parser v0.18.1
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking ab_glyph_rasterizer v0.1.8
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "74bfbca3b56757fcd5cb22928a2bee6903ea9f21b1ea72d6080d881c32801429", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "74bfbca3b56757fcd5cb22928a2bee6903ea9f21b1ea72d6080d881c32801429", kill_on_drop: false }`
[INFO] [stdout] 74bfbca3b56757fcd5cb22928a2bee6903ea9f21b1ea72d6080d881c32801429