[INFO] fetching crate markdown-it 0.6.0...
[INFO] checking markdown-it-0.6.0 against master#c2f2db79ca3024f68d22b45aa22b570775c2c4ad for pr-124157
[INFO] extracting crate markdown-it 0.6.0 into /workspace/builds/worker-7-tc1/source
[INFO] validating manifest of crates.io crate markdown-it 0.6.0 on toolchain c2f2db79ca3024f68d22b45aa22b570775c2c4ad
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate markdown-it 0.6.0
[INFO] finished tweaking crates.io crate markdown-it 0.6.0
[INFO] tweaked toml for crates.io crate markdown-it 0.6.0 written to /workspace/builds/worker-7-tc1/source/Cargo.toml
[INFO] crate crates.io crate markdown-it 0.6.0 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" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded line-wrap v0.1.1
[INFO] [stderr]   Downloaded time-macros v0.2.9
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded const_format_proc_macros v0.2.31
[INFO] [stderr]   Downloaded linkify v0.9.0
[INFO] [stderr]   Downloaded readonly v0.2.8
[INFO] [stderr]   Downloaded plist v1.4.3
[INFO] [stderr]   Downloaded proc-macro2 v1.0.59
[INFO] [stderr]   Downloaded const_format v0.2.31
[INFO] [stderr]   Downloaded quick-xml v0.28.2
[INFO] [stderr]   Downloaded regex-syntax v0.7.2
[INFO] [stderr]   Downloaded regex v1.8.4
[INFO] [stderr]   Downloaded syntect v5.0.0
[INFO] [stderr]   Downloaded fancy-regex v0.7.1
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] c28780b1f58462a222699f43c2f77b918d32313dabf6cd980ead129c8bac3a02
[INFO] running `Command { std: "docker" "start" "-a" "c28780b1f58462a222699f43c2f77b918d32313dabf6cd980ead129c8bac3a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "c28780b1f58462a222699f43c2f77b918d32313dabf6cd980ead129c8bac3a02", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "c28780b1f58462a222699f43c2f77b918d32313dabf6cd980ead129c8bac3a02", kill_on_drop: false }`
[INFO] [stdout] c28780b1f58462a222699f43c2f77b918d32313dabf6cd980ead129c8bac3a02
[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@sha256:99613afd962a8cfa530ec1899472a458bd015a1ab0af876cf7eb06f6006d81ea" "/opt/rustwide/cargo-home/bin/cargo" "+c2f2db79ca3024f68d22b45aa22b570775c2c4ad" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 3fd0ed4693c3c98dc25095919c8010d4112346537badf253506a573c611ba64d
[INFO] running `Command { std: "docker" "start" "-a" "3fd0ed4693c3c98dc25095919c8010d4112346537badf253506a573c611ba64d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.59
[INFO] [stderr]    Compiling quote v1.0.28
[INFO] [stderr]    Compiling unicode-ident v1.0.9
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]     Checking regex-syntax v0.7.2
[INFO] [stderr]     Checking itoa v1.0.6
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]     Checking time-core v0.1.1
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]    Compiling psm v0.1.21
[INFO] [stderr]    Compiling serde_json v1.0.96
[INFO] [stderr]    Compiling libc v0.2.146
[INFO] [stderr]     Checking bit-vec v0.6.3
[INFO] [stderr]     Checking safemem v0.3.3
[INFO] [stderr]     Checking unicode-normalization v0.1.22
[INFO] [stderr]     Checking aho-corasick v1.0.2
[INFO] [stderr]     Checking line-wrap v0.1.1
[INFO] [stderr]     Checking quick-xml v0.28.2
[INFO] [stderr]    Compiling stacker v0.1.15
[INFO] [stderr]     Checking time v0.3.21
[INFO] [stderr]     Checking ryu v1.0.13
[INFO] [stderr]     Checking bit-set v0.5.3
[INFO] [stderr]     Checking base64 v0.21.2
[INFO] [stderr]     Checking unicode-bidi v0.3.13
[INFO] [stderr]    Compiling unicode-general-category v0.6.0
[INFO] [stderr]     Checking flate2 v1.0.26
[INFO] [stderr]     Checking utf8-width v0.1.6
[INFO] [stderr]     Checking regex-syntax v0.6.29
[INFO] [stderr]     Checking html-escape v0.2.13
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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]     Checking linkify v0.9.0
[INFO] [stderr]     Checking entities v1.0.1
[INFO] [stderr]     Checking downcast-rs v1.2.0
[INFO] [stderr]     Checking argparse v0.2.2
[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" "3fd0ed4693c3c98dc25095919c8010d4112346537badf253506a573c611ba64d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3fd0ed4693c3c98dc25095919c8010d4112346537badf253506a573c611ba64d", kill_on_drop: false }`
[INFO] [stdout] 3fd0ed4693c3c98dc25095919c8010d4112346537badf253506a573c611ba64d
