[INFO] fetching crate mathjax 0.1.1...
[INFO] checking mathjax-0.1.1 against master#158f00a1c5175648af6f6099b075f78d1d014a28 for pr-121251
[INFO] extracting crate mathjax 0.1.1 into /workspace/builds/worker-6-tc1/source
[INFO] validating manifest of crates.io crate mathjax 0.1.1 on toolchain 158f00a1c5175648af6f6099b075f78d1d014a28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate mathjax 0.1.1
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate mathjax 0.1.1
[INFO] tweaked toml for crates.io crate mathjax 0.1.1 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] crate crates.io crate mathjax 0.1.1 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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "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 rctree v0.5.0
[INFO] [stderr]   Downloaded svgfilters v0.4.0
[INFO] [stderr]   Downloaded miette-derive v5.9.0
[INFO] [stderr]   Downloaded node-semver v2.1.0
[INFO] [stderr]   Downloaded usvg-parser v0.33.0
[INFO] [stderr]   Downloaded rosvgtree v0.3.0
[INFO] [stderr]   Downloaded usvg-text-layout v0.33.0
[INFO] [stderr]   Downloaded memmap2 v0.6.1
[INFO] [stderr]   Downloaded strict-num v0.1.0
[INFO] [stderr]   Downloaded svgtypes v0.11.0
[INFO] [stderr]   Downloaded tiny-skia-path v0.9.0
[INFO] [stderr]   Downloaded fontdb v0.14.1
[INFO] [stderr]   Downloaded tiny-skia v0.9.1
[INFO] [stderr]   Downloaded ttf-parser v0.18.1
[INFO] [stderr]   Downloaded rustybuzz v0.7.0
[INFO] [stderr]   Downloaded auto_generate_cdp v0.4.1
[INFO] [stderr]   Downloaded kurbo v0.9.5
[INFO] [stderr]   Downloaded headless_chrome v1.0.5
[INFO] [stderr]   Downloaded miette v5.9.0
[INFO] [stderr]   Downloaded base64 v0.21.1
[INFO] [stderr]   Downloaded resvg v0.33.0
[INFO] [stderr]   Downloaded zip-extract v0.1.2
[INFO] [stderr]   Downloaded fontconfig-parser v0.5.2
[INFO] [stderr]   Downloaded usvg v0.33.0
[INFO] [stderr]   Downloaded usvg-tree v0.33.0
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 18fafb99681aff28690d39c620cf002826ac35be95757711b96839af4d1eef37
[INFO] running `Command { std: "docker" "start" "-a" "18fafb99681aff28690d39c620cf002826ac35be95757711b96839af4d1eef37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "18fafb99681aff28690d39c620cf002826ac35be95757711b96839af4d1eef37", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "18fafb99681aff28690d39c620cf002826ac35be95757711b96839af4d1eef37", kill_on_drop: false }`
[INFO] [stdout] 18fafb99681aff28690d39c620cf002826ac35be95757711b96839af4d1eef37
[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" "+158f00a1c5175648af6f6099b075f78d1d014a28" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3c180f8138b9796ca02af63c0de58d8e8e6230501f27461e7fc978def47ee4a9
[INFO] running `Command { std: "docker" "start" "-a" "3c180f8138b9796ca02af63c0de58d8e8e6230501f27461e7fc978def47ee4a9", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking scopeguard v1.1.0
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling memoffset v0.8.0
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.14
[INFO] [stderr]     Checking bytemuck v1.13.1
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking typenum v1.16.0
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling spin v0.5.2
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking subtle v2.5.0
[INFO] [stderr]    Compiling untrusted v0.7.1
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking float-cmp v0.9.0
[INFO] [stderr]    Compiling rustls v0.20.8
[INFO] [stderr]     Checking cpufeatures v0.2.7
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]     Checking xmlparser v0.13.5
[INFO] [stderr]    Compiling unicode-normalization v0.1.22
[INFO] [stderr]     Checking kurbo v0.9.5
[INFO] [stderr]     Checking strict-num v0.1.0
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling adler v1.0.2
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]     Checking siphasher v0.3.10
[INFO] [stderr]    Compiling percent-encoding v2.2.0
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]    Compiling miniz_oxide v0.7.1
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.58/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 form_urlencoded v1.1.0
[INFO] [stderr]     Checking roxmltree v0.18.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling slotmap v1.0.6
[INFO] [stderr]     Checking crossbeam-channel v0.5.8
[INFO] [stderr]    Compiling jobserver v0.1.26
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling unicode-general-category v0.6.0
[INFO] [stderr]    Compiling zstd-safe v5.0.2+zstd.1.5.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[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" "3c180f8138b9796ca02af63c0de58d8e8e6230501f27461e7fc978def47ee4a9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3c180f8138b9796ca02af63c0de58d8e8e6230501f27461e7fc978def47ee4a9", kill_on_drop: false }`
[INFO] [stdout] 3c180f8138b9796ca02af63c0de58d8e8e6230501f27461e7fc978def47ee4a9
