[INFO] fetching crate pdf 0.9.0...
[INFO] building pdf-0.9.0 against master#ad85bc524b1ad696e42061ad8338d382dffbdbe5 for pr-146237-1
[INFO] extracting crate pdf 0.9.0 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate pdf 0.9.0
[INFO] removed 0 missing examples
[INFO] finished tweaking crates.io crate pdf 0.9.0
[INFO] tweaked toml for crates.io crate pdf 0.9.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate pdf 0.9.0 on toolchain ad85bc524b1ad696e42061ad8338d382dffbdbe5
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate pdf 0.9.0 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" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "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]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded proc-macro2 v1.0.51
[INFO] [stderr]   Downloaded weezl v0.1.6
[INFO] [stderr]   Downloaded cpufeatures v0.2.2
[INFO] [stderr]   Downloaded istring v0.3.3
[INFO] [stderr]   Downloaded dary_heap v0.3.6
[INFO] [stderr]   Downloaded sha2 v0.10.2
[INFO] [stderr]   Downloaded deflate v1.0.0
[INFO] [stderr]   Downloaded digest v0.10.3
[INFO] [stderr]   Downloaded fax v0.2.0
[INFO] [stderr]   Downloaded cipher v0.4.3
[INFO] [stderr]   Downloaded cbc v0.1.2
[INFO] [stderr]   Downloaded inout v0.1.3
[INFO] [stderr]   Downloaded fax_derive v0.1.0
[INFO] [stderr]   Downloaded ahash v0.8.3
[INFO] [stderr]   Downloaded block-padding v0.3.2
[INFO] [stderr]   Downloaded glob v0.3.0
[INFO] [stderr]   Downloaded async-trait v0.1.64
[INFO] [stderr]   Downloaded euclid v0.22.7
[INFO] [stderr]   Downloaded itertools v0.10.3
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.8
[INFO] [stderr]   Downloaded rayon-core v1.9.3
[INFO] [stderr]   Downloaded libflate v2.0.0
[INFO] [stderr]   Downloaded aes v0.8.2
[INFO] [stderr]   Downloaded once_cell v1.18.0
[INFO] [stderr]   Downloaded rayon v1.5.3
[INFO] [stderr]   Downloaded libflate_lz77 v2.0.0
[INFO] [stderr]   Downloaded datasize_derive v0.2.13
[INFO] [stderr]   Downloaded datasize v0.2.13
[INFO] [stderr]   Downloaded pdf_derive v0.2.0
[INFO] [stderr]   Downloaded block-buffer v0.10.2
[INFO] [stderr]   Downloaded generic-array v0.14.5
[INFO] [stderr]   Downloaded typenum v1.15.0
[INFO] [stderr]   Downloaded libc v0.2.126
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.8
[INFO] [stderr]   Downloaded syn v1.0.107
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[INFO] [stderr]   Downloaded crossbeam-deque v0.8.1
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[INFO] [stderr]   Downloaded unicode-ident v1.0.0
[INFO] [stderr]   Downloaded memmap2 v0.5.3
[INFO] [stderr]   Downloaded crypto-common v0.1.3
[INFO] [stderr]   Downloaded stringprep v0.1.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] f825d0c9ffa602d2b06009e50a2ba51a5383a8a758d443248aa8402f413f2871
[INFO] running `Command { std: "docker" "start" "-a" "f825d0c9ffa602d2b06009e50a2ba51a5383a8a758d443248aa8402f413f2871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "f825d0c9ffa602d2b06009e50a2ba51a5383a8a758d443248aa8402f413f2871", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "f825d0c9ffa602d2b06009e50a2ba51a5383a8a758d443248aa8402f413f2871", kill_on_drop: false }`
[INFO] [stdout] f825d0c9ffa602d2b06009e50a2ba51a5383a8a758d443248aa8402f413f2871
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+ad85bc524b1ad696e42061ad8338d382dffbdbe5" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9f57dbd0fee5bb3be9d674e56486bd3ae04e636afac3b2f9172f696ca9c895db
[INFO] running `Command { std: "docker" "start" "-a" "9f57dbd0fee5bb3be9d674e56486bd3ae04e636afac3b2f9172f696ca9c895db", kill_on_drop: false }`
[INFO] [stderr]    Compiling version_check v0.9.4
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling unicode-ident v1.0.0
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling typenum v1.15.0
[INFO] [stderr]    Compiling memchr v2.5.0
[INFO] [stderr]    Compiling once_cell v1.18.0
[INFO] [stderr]    Compiling crc32fast v1.3.2
[INFO] [stderr]    Compiling tinyvec_macros v0.1.0
[INFO] [stderr]    Compiling async-trait v0.1.64
[INFO] [stderr]    Compiling doc-comment v0.3.3
[INFO] [stderr]    Compiling adler32 v1.2.0
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling cpufeatures v0.2.2
[INFO] [stderr]    Compiling rle-decode-fast v1.0.3
[INFO] [stderr]    Compiling heck v0.4.0
[INFO] [stderr]    Compiling tinyvec v1.6.0
[INFO] [stderr]    Compiling either v1.6.1
[INFO] [stderr]    Compiling dary_heap v0.3.6
[INFO] [stderr]    Compiling hashbrown v0.14.3
[INFO] [stderr]    Compiling unicode-bidi v0.3.8
[INFO] [stderr]    Compiling itertools v0.10.3
[INFO] [stderr]    Compiling deflate v1.0.0
[INFO] [stderr]    Compiling md5 v0.7.0
[INFO] [stderr]    Compiling weezl v0.1.6
[INFO] [stderr]    Compiling jpeg-decoder v0.3.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.51/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 generic-array v0.14.5
[INFO] [stderr]    Compiling ahash v0.8.3
[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" "9f57dbd0fee5bb3be9d674e56486bd3ae04e636afac3b2f9172f696ca9c895db", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9f57dbd0fee5bb3be9d674e56486bd3ae04e636afac3b2f9172f696ca9c895db", kill_on_drop: false }`
[INFO] [stdout] 9f57dbd0fee5bb3be9d674e56486bd3ae04e636afac3b2f9172f696ca9c895db