[INFO] fetching crate plotters-piet 0.3.2...
[INFO] building plotters-piet-0.3.2 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate plotters-piet 0.3.2 into /workspace/builds/worker-4-tc1/source
[INFO] started tweaking crates.io crate plotters-piet 0.3.2
[INFO] finished tweaking crates.io crate plotters-piet 0.3.2
[INFO] tweaked toml for crates.io crate plotters-piet 0.3.2 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate plotters-piet 0.3.2 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate plotters-piet 0.3.2 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plotters-svg v0.3.3
[INFO] [stderr]   Downloaded plotters-bitmap v0.3.2
[INFO] [stderr]   Downloaded utf16_lit v2.0.2
[INFO] [stderr]   Downloaded quote v1.0.23
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.0
[INFO] [stderr]   Downloaded plotters v0.3.4
[INFO] [stderr]   Downloaded toml_datetime v0.5.1
[INFO] [stderr]   Downloaded anyhow v1.0.68
[INFO] [stderr]   Downloaded gio v0.16.7
[INFO] [stderr]   Downloaded cairo-rs v0.16.7
[INFO] [stderr]   Downloaded glib v0.16.7
[INFO] [stderr]   Downloaded pangocairo-sys v0.16.3
[INFO] [stderr]   Downloaded proc-macro-crate v1.3.0
[INFO] [stderr]   Downloaded pango v0.16.5
[INFO] [stderr]   Downloaded gio-sys v0.16.3
[INFO] [stderr]   Downloaded toml_edit v0.18.1
[INFO] [stderr]   Downloaded nom8 v0.2.0
[INFO] [stderr]   Downloaded pest v2.5.4
[INFO] [stderr]   Downloaded pangocairo v0.16.3
[INFO] [stderr]   Downloaded piet-cairo v0.6.1
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.88
[INFO] [stderr]   Downloaded piet v0.6.1
[INFO] [stderr]   Downloaded bytemuck v1.13.0
[INFO] [stderr]   Downloaded gobject-sys v0.16.3
[INFO] [stderr]   Downloaded associative-cache v1.0.1
[INFO] [stderr]   Downloaded gif v0.11.4
[INFO] [stderr]   Downloaded piet-direct2d v0.6.1
[INFO] [stderr]   Downloaded unic-bidi v0.9.0
[INFO] [stderr]   Downloaded cxx-build v1.0.88
[INFO] [stderr]   Downloaded thiserror v1.0.38
[INFO] [stderr]   Downloaded image v0.24.5
[INFO] [stderr]   Downloaded ttf-parser v0.15.2
[INFO] [stderr]   Downloaded cfg-expr v0.11.0
[INFO] [stderr]   Downloaded kurbo v0.9.0
[INFO] [stderr]   Downloaded thiserror-impl v1.0.38
[INFO] [stderr]   Downloaded ucd-trie v0.1.5
[INFO] [stderr]   Downloaded glib-sys v0.16.3
[INFO] [stderr]   Downloaded pango-sys v0.16.3
[INFO] [stderr]   Downloaded cxx v1.0.88
[INFO] [stderr]   Downloaded piet-coregraphics v0.6.1
[INFO] [stderr]   Downloaded piet-web v0.6.1
[INFO] [stderr]   Downloaded proc-macro2 v1.0.50
[INFO] [stderr]   Downloaded piet-common v0.6.1
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.88
[INFO] [stderr]   Downloaded scratch v1.0.3
[INFO] [stderr]   Downloaded cc v1.0.78
[INFO] [stderr]   Downloaded cmake v0.1.49
[INFO] [stderr]   Downloaded weezl v0.1.7
[INFO] [stderr]   Downloaded glib-macros v0.16.3
[INFO] [stderr]   Downloaded cairo-sys-rs v0.16.3
[INFO] [stderr]   Downloaded system-deps v6.0.3
[INFO] [stderr]   Downloaded jpeg-decoder v0.3.0
[INFO] [stderr]   Downloaded png v0.17.7
[INFO] [stderr]   Downloaded plotters-backend v0.3.4
[INFO] [stderr]   Downloaded unic-ucd-bidi 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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 189c9795c724cac4efcf420971baef2d335e582fe5cc1d7586878ee2c93571ad
[INFO] running `Command { std: "docker" "start" "-a" "189c9795c724cac4efcf420971baef2d335e582fe5cc1d7586878ee2c93571ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "189c9795c724cac4efcf420971baef2d335e582fe5cc1d7586878ee2c93571ad", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "189c9795c724cac4efcf420971baef2d335e582fe5cc1d7586878ee2c93571ad", kill_on_drop: false }`
[INFO] [stdout] 189c9795c724cac4efcf420971baef2d335e582fe5cc1d7586878ee2c93571ad
[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" "-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3ea3037f833d545c78d1a078c5859269b82ecf1c2391b3204e106b955d430886
[INFO] running `Command { std: "docker" "start" "-a" "3ea3037f833d545c78d1a078c5859269b82ecf1c2391b3204e106b955d430886", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling pkg-config v0.3.26
[INFO] [stderr]    Compiling proc-macro2 v1.0.50
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling cfg-expr v0.11.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.50/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 futures-core v0.3.25
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling slab v0.4.7
[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" "3ea3037f833d545c78d1a078c5859269b82ecf1c2391b3204e106b955d430886", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3ea3037f833d545c78d1a078c5859269b82ecf1c2391b3204e106b955d430886", kill_on_drop: false }`
[INFO] [stdout] 3ea3037f833d545c78d1a078c5859269b82ecf1c2391b3204e106b955d430886