[INFO] cloning repository https://github.com/swesmith/mgdm__htmlq.6e31bc81
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/swesmith/mgdm__htmlq.6e31bc81" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswesmith%2Fmgdm__htmlq.6e31bc81", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswesmith%2Fmgdm__htmlq.6e31bc81'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] f3d41be47f368369da4ac3806d4c2150d0794e0c
[INFO] checking swesmith/mgdm__htmlq.6e31bc81/f3d41be47f368369da4ac3806d4c2150d0794e0c against master#67944d6bec6b8fbbc3870e5365ab73cf88a9de62 for pr-148545
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fswesmith%2Fmgdm__htmlq.6e31bc81" "/workspace/builds/worker-2-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-2-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/swesmith/mgdm__htmlq.6e31bc81
[INFO] finished tweaking git repo https://github.com/swesmith/mgdm__htmlq.6e31bc81
[INFO] tweaked toml for git repo https://github.com/swesmith/mgdm__htmlq.6e31bc81 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/swesmith/mgdm__htmlq.6e31bc81 on toolchain 67944d6bec6b8fbbc3870e5365ab73cf88a9de62
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+67944d6bec6b8fbbc3870e5365ab73cf88a9de62" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/swesmith/mgdm__htmlq.6e31bc81 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" "+67944d6bec6b8fbbc3870e5365ab73cf88a9de62" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]      Locking 20 packages to latest compatible versions
[INFO] [stderr]       Adding aho-corasick v1.1.4
[INFO] [stderr]       Adding anstyle v1.0.13
[INFO] [stderr]       Adding assert_cmd v2.1.1
[INFO] [stderr]       Adding bstr v1.12.1
[INFO] [stderr]       Adding difflib v0.4.0
[INFO] [stderr]       Adding either v1.15.0
[INFO] [stderr]       Adding float-cmp v0.9.0
[INFO] [stderr]       Adding itertools v0.10.5
[INFO] [stderr]       Adding memchr v2.7.6
[INFO] [stderr]       Adding normalize-line-endings v0.3.0
[INFO] [stderr]       Adding num-traits v0.2.19
[INFO] [stderr]       Adding predicates v2.1.5 (available: v3.1.3)
[INFO] [stderr]       Adding predicates v3.1.3
[INFO] [stderr]       Adding predicates-core v1.0.9
[INFO] [stderr]       Adding predicates-tree v1.0.12
[INFO] [stderr]       Adding regex v1.12.2
[INFO] [stderr]       Adding regex-automata v0.4.13
[INFO] [stderr]       Adding regex-syntax v0.8.8
[INFO] [stderr]       Adding termtree v0.5.1
[INFO] [stderr]       Adding wait-timeout v0.2.1
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded dtoa-short v0.3.3
[INFO] [stderr]   Downloaded string_cache v0.8.4
[INFO] [stderr]   Downloaded kuchiki v0.8.1
[INFO] [stderr]   Downloaded cssparser-macros v0.6.0
[INFO] [stderr]   Downloaded markup5ever v0.10.1
[INFO] [stderr]   Downloaded html5ever v0.25.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+67944d6bec6b8fbbc3870e5365ab73cf88a9de62" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] a88049a674387580a6c49def30455e588924fc078249cbf7dae494bd5cf6db8e
[INFO] running `Command { std: "docker" "start" "-a" "a88049a674387580a6c49def30455e588924fc078249cbf7dae494bd5cf6db8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "a88049a674387580a6c49def30455e588924fc078249cbf7dae494bd5cf6db8e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "a88049a674387580a6c49def30455e588924fc078249cbf7dae494bd5cf6db8e", kill_on_drop: false }`
[INFO] [stdout] a88049a674387580a6c49def30455e588924fc078249cbf7dae494bd5cf6db8e
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:845e597a41426bbf2703be69acdb67d10b6de511142d05cba7bbe119c898b2c7" "/opt/rustwide/cargo-home/bin/cargo" "+67944d6bec6b8fbbc3870e5365ab73cf88a9de62" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8f33ac4591168151826faceb04ca102846524a5d806d1b94885bf39395792215
[INFO] running `Command { std: "docker" "start" "-a" "8f33ac4591168151826faceb04ca102846524a5d806d1b94885bf39395792215", kill_on_drop: false }`
[INFO] [stderr] warning: only one of `license` or `license-file` is necessary
[INFO] [stderr] `license` should be used if the package license can be expressed with a standard SPDX expression.
[INFO] [stderr] `license-file` should be used if the package uses a non-standard license.
[INFO] [stderr] See https://doc.rust-lang.org/cargo/reference/manifest.html#the-license-and-license-file-fields for more information.
[INFO] [stderr]    Compiling libc v0.2.137
[INFO] [stderr]    Compiling siphasher v0.3.10
[INFO] [stderr]    Compiling syn v1.0.105
[INFO] [stderr]    Compiling proc-macro2 v1.0.47
[INFO] [stderr]    Compiling proc-macro-hack v0.5.19
[INFO] [stderr]    Compiling parking_lot_core v0.9.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.47/src/lib.rs:92:30
[INFO] [stdout]    |
[INFO] [stdout] 92 |     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout]    |                              ^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout]    |
[INFO] [stdout] help: there is a feature with a similar name: `proc_macro_span_file`
[INFO] [stdout]    |
[INFO] [stdout] 92 -     feature(proc_macro_span, proc_macro_span_shrink)
[INFO] [stdout] 92 +     feature(proc_macro_span, proc_macro_span_file)
[INFO] [stdout]    |
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stderr]    Compiling phf_shared v0.8.0
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling serde v1.0.148
[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 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "8f33ac4591168151826faceb04ca102846524a5d806d1b94885bf39395792215", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8f33ac4591168151826faceb04ca102846524a5d806d1b94885bf39395792215", kill_on_drop: false }`
[INFO] [stdout] 8f33ac4591168151826faceb04ca102846524a5d806d1b94885bf39395792215