[INFO] fetching crate dssim 3.2.4...
[INFO] checking dssim-3.2.4 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate dssim 3.2.4 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate dssim 3.2.4 on toolchain 30f74ff0dc4d66debc8b50724c446f817e5f75f4
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate dssim 3.2.4
[INFO] finished tweaking crates.io crate dssim 3.2.4
[INFO] tweaked toml for crates.io crate dssim 3.2.4 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate dssim 3.2.4 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" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded rgb v0.8.34
[INFO] [stderr]   Downloaded rexif v0.7.3
[INFO] [stderr]   Downloaded libwebp v0.1.2
[INFO] [stderr]   Downloaded fallible_collections v0.4.5
[INFO] [stderr]   Downloaded num-complex v0.4.2
[INFO] [stderr]   Downloaded bitreader v0.3.6
[INFO] [stderr]   Downloaded yuv v0.1.5
[INFO] [stderr]   Downloaded aom-decode v0.2.4
[INFO] [stderr]   Downloaded dssim-core v3.2.5
[INFO] [stderr]   Downloaded imgref v1.9.4
[INFO] [stderr]   Downloaded avif-parse v1.0.0
[INFO] [stderr]   Downloaded lcms2-sys v4.0.0
[INFO] [stderr]   Downloaded load_image v3.0.1
[INFO] [stderr]   Downloaded lcms2 v5.5.0
[INFO] [stderr]   Downloaded lodepng v3.7.2
[INFO] [stderr]   Downloaded libwebp-sys2 v0.1.4
[INFO] [stderr]   Downloaded libaom-sys v0.12.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] cb0dc607c470844f892666831861832b31ebda21100e55a8adf04fa277a7ad3d
[INFO] running `Command { std: "docker" "start" "-a" "cb0dc607c470844f892666831861832b31ebda21100e55a8adf04fa277a7ad3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "cb0dc607c470844f892666831861832b31ebda21100e55a8adf04fa277a7ad3d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cb0dc607c470844f892666831861832b31ebda21100e55a8adf04fa277a7ad3d", kill_on_drop: false }`
[INFO] [stdout] cb0dc607c470844f892666831861832b31ebda21100e55a8adf04fa277a7ad3d
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+30f74ff0dc4d66debc8b50724c446f817e5f75f4" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] badc66ff8cca3baa4f525aaf4508a5062fe5630b1a3ec0648734b6aef059cc0a
[INFO] running `Command { std: "docker" "start" "-a" "badc66ff8cca3baa4f525aaf4508a5062fe5630b1a3ec0648734b6aef059cc0a", kill_on_drop: false }`
[INFO] [stderr]     Checking cfg-if v1.0.0
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.11
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling crossbeam-utils v0.8.12
[INFO] [stderr]    Compiling memoffset v0.6.5
[INFO] [stderr]    Compiling rayon-core v1.9.3
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling ahash v0.7.6
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling num-bigint v0.4.3
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.47/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 syn v1.0.103
[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" "badc66ff8cca3baa4f525aaf4508a5062fe5630b1a3ec0648734b6aef059cc0a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "badc66ff8cca3baa4f525aaf4508a5062fe5630b1a3ec0648734b6aef059cc0a", kill_on_drop: false }`
[INFO] [stdout] badc66ff8cca3baa4f525aaf4508a5062fe5630b1a3ec0648734b6aef059cc0a
