[INFO] fetching crate docify 0.2.7...
[INFO] checking docify-0.2.7 against master#30f74ff0dc4d66debc8b50724c446f817e5f75f4 for pr-121848-1
[INFO] extracting crate docify 0.2.7 into /workspace/builds/worker-1-tc1/source
[INFO] validating manifest of crates.io crate docify 0.2.7 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 docify 0.2.7
[INFO] finished tweaking crates.io crate docify 0.2.7
[INFO] tweaked toml for crates.io crate docify 0.2.7 written to /workspace/builds/worker-1-tc1/source/Cargo.toml
[INFO] crate crates.io crate docify 0.2.7 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 proc-utils v0.1.0
[INFO] [stderr]   Downloaded proc-util-macros v0.1.0
[INFO] [stderr]   Downloaded derive-syn-parse v0.1.5
[INFO] [stderr]   Downloaded docify_macros v0.2.7
[INFO] [stderr]   Downloaded serde v1.0.181
[INFO] [stderr]   Downloaded prettyplease v0.2.6
[INFO] [stderr]   Downloaded winnow v0.5.3
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] 5219170ec19e265b3f66abdf30482bac8501be0e47600e3be492806f05c01a79
[INFO] running `Command { std: "docker" "start" "-a" "5219170ec19e265b3f66abdf30482bac8501be0e47600e3be492806f05c01a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5219170ec19e265b3f66abdf30482bac8501be0e47600e3be492806f05c01a79", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5219170ec19e265b3f66abdf30482bac8501be0e47600e3be492806f05c01a79", kill_on_drop: false }`
[INFO] [stdout] 5219170ec19e265b3f66abdf30482bac8501be0e47600e3be492806f05c01a79
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-1-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] d6ff59e5b57162332b483156b8b667a932e3f92d3b89b314e1b0ecc53563e2f6
[INFO] running `Command { std: "docker" "start" "-a" "d6ff59e5b57162332b483156b8b667a932e3f92d3b89b314e1b0ecc53563e2f6", 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 v1.0.181
[INFO] [stderr]    Compiling hashbrown v0.14.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling winnow v0.5.3
[INFO] [stderr]    Compiling prettyplease v0.2.6
[INFO] [stderr]    Compiling same-file v1.0.6
[INFO] [stderr]    Compiling regex-syntax v0.7.2
[INFO] [stderr]    Compiling walkdir v2.3.3
[INFO] [stderr]    Compiling common-path v1.0.0
[INFO] [stderr]    Compiling termcolor v1.2.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.59/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]    Compiling indexmap v2.0.0
[INFO] [stderr]    Compiling aho-corasick v1.0.1
[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] [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] [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] running `Command { std: "docker" "inspect" "d6ff59e5b57162332b483156b8b667a932e3f92d3b89b314e1b0ecc53563e2f6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d6ff59e5b57162332b483156b8b667a932e3f92d3b89b314e1b0ecc53563e2f6", kill_on_drop: false }`
[INFO] [stdout] d6ff59e5b57162332b483156b8b667a932e3f92d3b89b314e1b0ecc53563e2f6
