[INFO] fetching crate demoscene 0.1.2...
[INFO] checking demoscene-0.1.2 against master#39cb3386ddc6c71657418be28dbb3987eea4aa4b for pr-133536
[INFO] extracting crate demoscene 0.1.2 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate demoscene 0.1.2 on toolchain 39cb3386ddc6c71657418be28dbb3987eea4aa4b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate demoscene 0.1.2
[INFO] finished tweaking crates.io crate demoscene 0.1.2
[INFO] tweaked toml for crates.io crate demoscene 0.1.2 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate demoscene 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" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "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 zstd v0.9.2+zstd.1.5.1
[INFO] [stderr]   Downloaded syn v1.0.101
[INFO] [stderr]   Downloaded zstd-safe v4.1.3+zstd.1.5.1
[INFO] [stderr]   Downloaded rayon-core v1.9.3
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[INFO] [stderr]   Downloaded iana-time-zone v0.1.50
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[INFO] [stderr]   Downloaded zstd-sys v1.6.2+zstd.1.5.1
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[INFO] [stderr]   Downloaded libgssapi-sys v0.2.4
[INFO] [stderr]   Downloaded netidx-bscript v0.12.1
[INFO] [stderr]   Downloaded gstreamer-player-sys v0.18.0
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[INFO] [stderr]   Downloaded glib-sys v0.15.10
[INFO] [stderr]   Downloaded gstreamer-sys v0.18.0
[INFO] [stderr]   Downloaded gstreamer-video v0.18.7
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[INFO] [stderr]   Downloaded cfg-expr v0.10.3
[INFO] [stderr]   Downloaded version-compare v0.1.0
[INFO] [stderr]   Downloaded gstreamer-player v0.18.0
[INFO] [stderr]   Downloaded paste v1.0.9
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[INFO] [stderr]   Downloaded which v4.3.0
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[INFO] [stderr]   Downloaded packed_struct_codegen v0.10.0
[INFO] [stderr]   Downloaded crossbeam-queue v0.3.6
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[INFO] [stderr]   Downloaded netidx-core v0.12.1
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[INFO] [stderr]   Downloaded gobject-sys v0.15.10
[INFO] [stderr]   Downloaded system-deps v6.0.2
[INFO] [stderr]   Downloaded windows_x86_64_msvc v0.34.0
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[INFO] [stderr]   Downloaded windows_i686_gnu v0.34.0
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[INFO] [stderr]   Downloaded immutable-chunkmap v1.0.4
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c9826d7b9c9c1602d781a4eee6586b788bbb7b12871a0d08325e9da6b1a411c3
[INFO] running `Command { std: "docker" "start" "-a" "c9826d7b9c9c1602d781a4eee6586b788bbb7b12871a0d08325e9da6b1a411c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c9826d7b9c9c1602d781a4eee6586b788bbb7b12871a0d08325e9da6b1a411c3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c9826d7b9c9c1602d781a4eee6586b788bbb7b12871a0d08325e9da6b1a411c3", kill_on_drop: false }`
[INFO] [stdout] c9826d7b9c9c1602d781a4eee6586b788bbb7b12871a0d08325e9da6b1a411c3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+39cb3386ddc6c71657418be28dbb3987eea4aa4b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 646e2dc28621f2b6b48340411a87baa93707883312e7a6cedc49e33722323a39
[INFO] running `Command { std: "docker" "start" "-a" "646e2dc28621f2b6b48340411a87baa93707883312e7a6cedc49e33722323a39", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling autocfg v1.1.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling quote v1.0.21
[INFO] [stderr]    Compiling unicode-ident v1.0.4
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling heck v0.4.0
[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-macro2-1.0.46/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 v0.1.0
[INFO] [stderr]    Compiling pkg-config v0.3.25
[INFO] [stderr]    Compiling cfg-expr v0.10.3
[INFO] [stdout] For more information about this error, try `rustc --explain E0635`.
[INFO] [stdout] 
[INFO] [stderr]    Compiling log v0.4.17
[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" "646e2dc28621f2b6b48340411a87baa93707883312e7a6cedc49e33722323a39", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "646e2dc28621f2b6b48340411a87baa93707883312e7a6cedc49e33722323a39", kill_on_drop: false }`
[INFO] [stdout] 646e2dc28621f2b6b48340411a87baa93707883312e7a6cedc49e33722323a39
