[INFO] fetching crate youtube-dl-gui 0.2.1...
[INFO] testing youtube-dl-gui-0.2.1 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate youtube-dl-gui 0.2.1 into /workspace/builds/worker-7-tc1/source
[INFO] started tweaking crates.io crate youtube-dl-gui 0.2.1
[INFO] finished tweaking crates.io crate youtube-dl-gui 0.2.1
[INFO] tweaked toml for crates.io crate youtube-dl-gui 0.2.1 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate youtube-dl-gui 0.2.1 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate youtube-dl-gui 0.2.1 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded xi-unicode v0.3.0
[INFO] [stderr]   Downloaded glyph_brush v0.7.7
[INFO] [stderr]   Downloaded euclid v0.22.9
[INFO] [stderr]   Downloaded cfg-expr v0.14.0
[INFO] [stderr]   Downloaded renderdoc-sys v0.7.1
[INFO] [stderr]   Downloaded simd-adler32 v0.3.5
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[INFO] [stderr]   Downloaded gpu-descriptor v0.2.3
[INFO] [stderr]   Downloaded clipboard_wayland v0.2.0
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[INFO] [stderr]   Downloaded iced_graphics v0.7.0
[INFO] [stderr]   Downloaded simplelog v0.12.1
[INFO] [stderr]   Downloaded exr v1.6.3
[INFO] [stderr]   Downloaded clipboard_macos v0.1.0
[INFO] [stderr]   Downloaded glyph_brush_layout v0.2.3
[INFO] [stderr]   Downloaded single-instance v0.3.3
[INFO] [stderr]   Downloaded cmake v0.1.50
[INFO] [stderr]   Downloaded iced_wgpu v0.9.0
[INFO] [stderr]   Downloaded futures-lite v1.12.0
[INFO] [stderr]   Downloaded ordered-float v3.6.0
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[INFO] [stderr]   Downloaded const_panic v0.2.7
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[INFO] [stderr]   Downloaded kamadak-exif v0.5.5
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[INFO] [stderr]   Downloaded encase_derive_impl v0.3.0
[INFO] [stderr]   Downloaded naga v0.10.0
[INFO] [stderr]   Downloaded wgpu-types v0.14.1
[INFO] [stderr]   Downloaded glyph_brush_draw_cache v0.1.5
[INFO] [stderr]   Downloaded wgpu v0.14.2
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[INFO] [stderr]   Downloaded iced_winit v0.8.0
[INFO] [stderr]   Downloaded window_clipboard v0.2.4
[INFO] [stderr]   Downloaded iced v0.8.0
[INFO] [stderr]   Downloaded clipboard_x11 v0.4.0
[INFO] [stderr]   Downloaded find-crate v0.6.3
[INFO] [stderr]   Downloaded youtube-dl-parser v0.2.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.10
[INFO] [stderr]   Downloaded system-deps v6.0.4
[INFO] [stderr]   Downloaded gpu-descriptor-types v0.1.1
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[INFO] [stderr]   Downloaded ash v0.37.2+1.3.238
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[INFO] [stderr]   Downloaded glow_glyph v0.5.1
[INFO] [stderr]   Downloaded winres v0.1.12
[INFO] [stderr]   Downloaded polling v2.6.0
[INFO] [stderr]   Downloaded encase_derive v0.3.0
[INFO] [stderr]   Downloaded gpu-alloc v0.5.3
[INFO] [stderr]   Downloaded iced_native v0.9.1
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[INFO] [stderr]   Downloaded duct v0.13.6
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[INFO] [stderr]   Downloaded glam v0.21.3
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[INFO] [stderr]   Downloaded wgpu_glyph v0.18.0
[INFO] [stderr]   Downloaded iced_style v0.7.0
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 05dd61ea4e9e2e9fe720a12c31cf2268fbf29b636431fe095ac71d8c5417a811
[INFO] running `Command { std: "docker" "start" "-a" "05dd61ea4e9e2e9fe720a12c31cf2268fbf29b636431fe095ac71d8c5417a811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "05dd61ea4e9e2e9fe720a12c31cf2268fbf29b636431fe095ac71d8c5417a811", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "05dd61ea4e9e2e9fe720a12c31cf2268fbf29b636431fe095ac71d8c5417a811", kill_on_drop: false }`
[INFO] [stdout] 05dd61ea4e9e2e9fe720a12c31cf2268fbf29b636431fe095ac71d8c5417a811
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-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" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] e8ede853b0fa021b4739586f4229ac09f5f0fbf82d4d5d16eadf664082451c3a
[INFO] running `Command { std: "docker" "start" "-a" "e8ede853b0fa021b4739586f4229ac09f5f0fbf82d4d5d16eadf664082451c3a", kill_on_drop: false }`
[INFO] [stderr]    Compiling serde v1.0.159
[INFO] [stderr]    Compiling winnow v0.4.1
[INFO] [stderr]    Compiling smallvec v1.10.0
[INFO] [stderr]    Compiling version-compare v0.1.1
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling libloading v0.7.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling getrandom v0.2.8
[INFO] [stderr]    Compiling num_cpus v1.15.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 cfg-expr v0.14.0
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling xml-rs v0.8.4
[INFO] [stderr]    Compiling cmake v0.1.50
[INFO] [stderr]    Compiling wayland-sys v0.29.5
[INFO] [stderr]    Compiling dlib v0.5.0
[INFO] [stderr]    Compiling miniz_oxide v0.6.2
[INFO] [stderr]    Compiling nix v0.24.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling ahash v0.7.6
[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" "e8ede853b0fa021b4739586f4229ac09f5f0fbf82d4d5d16eadf664082451c3a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e8ede853b0fa021b4739586f4229ac09f5f0fbf82d4d5d16eadf664082451c3a", kill_on_drop: false }`
[INFO] [stdout] e8ede853b0fa021b4739586f4229ac09f5f0fbf82d4d5d16eadf664082451c3a