[INFO] fetching crate texcore 0.7.2...
[INFO] testing texcore-0.7.2 against master#c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38 for pr-146098-8
[INFO] extracting crate texcore 0.7.2 into /workspace/builds/worker-0-tc1/source
[INFO] started tweaking crates.io crate texcore 0.7.2
[INFO] finished tweaking crates.io crate texcore 0.7.2
[INFO] tweaked toml for crates.io crate texcore 0.7.2 written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate texcore 0.7.2 on toolchain c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate texcore 0.7.2 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" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded texcore_traits v0.1.0
[INFO] [stderr]   Downloaded texcore_derive v0.1.0
[INFO] [stderr]   Downloaded utf8-width v0.1.6
[INFO] [stderr]   Downloaded tokio-macros v2.0.0
[INFO] [stderr]   Downloaded unicode-bidi v0.3.13
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.94
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.94
[INFO] [stderr]   Downloaded crossbeam-epoch v0.9.14
[INFO] [stderr]   Downloaded crossbeam-channel v0.5.8
[INFO] [stderr]   Downloaded tectonic_bundles v0.3.0
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded chrono-tz-build v0.0.2
[INFO] [stderr]   Downloaded openssl-sys v0.9.85
[INFO] [stderr]   Downloaded rayon-core v1.11.0
[INFO] [stderr]   Downloaded rustix v0.37.13
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded pathdiff v0.2.1
[INFO] [stderr]   Downloaded rayon v1.7.0
[INFO] [stderr]   Downloaded hyper v0.14.26
[INFO] [stderr]   Downloaded chrono-tz v0.6.1
[INFO] [stderr]   Downloaded tectonic_bridge_harfbuzz v0.2.7
[INFO] [stderr]   Downloaded libc v0.2.142
[INFO] [stderr]   Downloaded crossbeam-utils v0.8.15
[INFO] [stderr]   Downloaded pinot v0.1.5
[INFO] [stderr]   Downloaded iana-time-zone v0.1.56
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded futures-macro v0.3.28
[INFO] [stderr]   Downloaded ucd-trie v0.1.5
[INFO] [stderr]   Downloaded xdg v2.4.1
[INFO] [stderr]   Downloaded futures-sink v0.3.28
[INFO] [stderr]   Downloaded ipnet v2.7.2
[INFO] [stderr]   Downloaded md-5 v0.9.1
[INFO] [stderr]   Downloaded tectonic_status_base v0.2.0
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.3
[INFO] [stderr]   Downloaded tectonic_docmodel v0.2.0
[INFO] [stderr]   Downloaded libz-sys v1.1.8
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded tectonic_geturl v0.3.1
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded tectonic_xdv v0.2.1
[INFO] [stderr]   Downloaded tectonic_engine_xetex v0.4.1
[INFO] [stderr]   Downloaded tera v1.18.1
[INFO] [stderr]   Downloaded cxx-build v1.0.94
[INFO] [stderr]   Downloaded tectonic_engine_xdvipdfmx v0.4.0
[INFO] [stderr]   Downloaded tectonic_pdf_io v0.4.0
[INFO] [stderr]   Downloaded chrono v0.4.24
[INFO] [stderr]   Downloaded h2 v0.3.18
[INFO] [stderr]   Downloaded openssl v0.10.50
[INFO] [stderr]   Downloaded combine v4.6.6
[INFO] [stderr]   Downloaded scratch v1.0.5
[INFO] [stderr]   Downloaded pest v2.5.7
[INFO] [stderr]   Downloaded reqwest v0.11.16
[INFO] [stderr]   Downloaded quick-xml v0.22.0
[INFO] [stderr]   Downloaded serde_json v1.0.96
[INFO] [stderr]   Downloaded tectonic v0.12.0
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded command-group v1.0.8
[INFO] [stderr]   Downloaded nix v0.22.3
[INFO] [stderr]   Downloaded tokio v1.27.0
[INFO] [stderr]   Downloaded anyhow v1.0.70
[INFO] [stderr]   Downloaded clearscreen v1.0.11
[INFO] [stderr]   Downloaded uncased v0.9.7
[INFO] [stderr]   Downloaded ignore v0.4.17
[INFO] [stderr]   Downloaded pest_meta v2.5.7
[INFO] [stderr]   Downloaded pest_generator v2.5.7
[INFO] [stderr]   Downloaded pest_derive v2.5.7
[INFO] [stderr]   Downloaded unic-ucd-segment v0.9.0
[INFO] [stderr]   Downloaded tectonic_engine_spx2html v0.2.1
[INFO] [stderr]   Downloaded app_dirs2 v2.5.5
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded tectonic_io_base v0.4.1
[INFO] [stderr]   Downloaded tectonic_errors v0.2.0
[INFO] [stderr]   Downloaded siphasher v0.3.10
[INFO] [stderr]   Downloaded tectonic_bridge_flate v0.1.6
[INFO] [stderr]   Downloaded futures-core v0.3.28
[INFO] [stderr]   Downloaded tectonic_bridge_core v0.3.1
[INFO] [stderr]   Downloaded io-lifetimes v1.0.10
[INFO] [stderr]   Downloaded which v4.4.0
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded tectonic_engine_bibtex v0.1.4
[INFO] [stderr]   Downloaded globwalk v0.8.1
[INFO] [stderr]   Downloaded unic-segment v0.9.0
[INFO] [stderr]   Downloaded tectonic_bridge_icu v0.2.0
[INFO] [stderr]   Downloaded serde_derive v1.0.160
[INFO] [stderr]   Downloaded phf v0.11.1
[INFO] [stderr]   Downloaded phf_generator v0.11.1
[INFO] [stderr]   Downloaded terminfo v0.7.5
[INFO] [stderr]   Downloaded aho-corasick v0.7.20
[INFO] [stderr]   Downloaded flate2 v1.0.25
[INFO] [stderr]   Downloaded syn v2.0.15
[INFO] [stderr]   Downloaded memoffset v0.8.0
[INFO] [stderr]   Downloaded byte-unit v4.0.19
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded error-chain v0.12.4
[INFO] [stderr]   Downloaded open v1.7.1
[INFO] [stderr]   Downloaded unicode-segmentation v1.10.1
[INFO] [stderr]   Downloaded html-escape v0.2.13
[INFO] [stderr]   Downloaded link-cplusplus v1.0.8
[INFO] [stderr]   Downloaded cxx v1.0.94
[INFO] [stderr]   Downloaded tectonic_bridge_freetype2 v0.2.0
[INFO] [stderr]   Downloaded tectonic_bridge_graphite2 v0.2.1
[INFO] [stderr]   Downloaded tectonic_cfg_support v0.1.4
[INFO] [stderr]   Downloaded tectonic_dep_support v0.1.0
[INFO] [stderr]   Downloaded tectonic_xetex_layout v0.2.1
[INFO] [stderr]   Downloaded serde v1.0.160
[INFO] [stderr]   Downloaded phf_shared v0.11.1
[INFO] [stderr]   Downloaded phf_codegen v0.11.1
[INFO] [stderr]   Downloaded either v1.8.1
[INFO] [stderr]   Downloaded darling_core v0.12.4
[INFO] [stderr]   Downloaded derive_builder_core v0.10.2
[INFO] [stderr]   Downloaded derive_builder v0.10.2
[INFO] [stderr]   Downloaded globset v0.4.6
[INFO] [stderr]   Downloaded filetime v0.2.21
[INFO] [stderr]   Downloaded notify v4.0.17
[INFO] [stderr]   Downloaded thiserror-impl v1.0.40
[INFO] [stderr]   Downloaded crossbeam-deque v0.8.3
[INFO] [stderr]   Downloaded addr2line v0.19.0
[INFO] [stderr]   Downloaded getrandom v0.2.9
[INFO] [stderr]   Downloaded darling_macro v0.12.4
[INFO] [stderr]   Downloaded darling v0.12.4
[INFO] [stderr]   Downloaded derive_builder_macro v0.10.2
[INFO] [stderr]   Downloaded net2 v0.2.38
[INFO] [stderr]   Downloaded thiserror v1.0.40
[INFO] [stderr]   Downloaded proc-macro2 v1.0.56
[INFO] [stderr]   Downloaded quote v1.0.26
[INFO] [stderr]   Downloaded unicode-ident v1.0.8
[INFO] [stderr]   Downloaded walkdir v2.3.3
[INFO] [stderr]   Downloaded watchexec v1.17.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] e57fd8cbf65c5c57c1f20b0f4cb7ec80dfaca05625f297f226f27731f762bde9
[INFO] running `Command { std: "docker" "start" "-a" "e57fd8cbf65c5c57c1f20b0f4cb7ec80dfaca05625f297f226f27731f762bde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "e57fd8cbf65c5c57c1f20b0f4cb7ec80dfaca05625f297f226f27731f762bde9", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "e57fd8cbf65c5c57c1f20b0f4cb7ec80dfaca05625f297f226f27731f762bde9", kill_on_drop: false }`
[INFO] [stdout] e57fd8cbf65c5c57c1f20b0f4cb7ec80dfaca05625f297f226f27731f762bde9
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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@sha256:4848fb76d95f26979359cc7e45710b1dbc8f3acb7aeedee7c460d7702230f228" "/opt/rustwide/cargo-home/bin/cargo" "+c90bcb9571b7aab0d8beaa2ce8a998ffaf079d38" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 62db6f698a21a5bff480e0549f4c96f1bc3279594362d3e2d88e6191d260751d
[INFO] running `Command { std: "docker" "start" "-a" "62db6f698a21a5bff480e0549f4c96f1bc3279594362d3e2d88e6191d260751d", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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] 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] running `Command { std: "docker" "inspect" "62db6f698a21a5bff480e0549f4c96f1bc3279594362d3e2d88e6191d260751d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "62db6f698a21a5bff480e0549f4c96f1bc3279594362d3e2d88e6191d260751d", kill_on_drop: false }`
[INFO] [stdout] 62db6f698a21a5bff480e0549f4c96f1bc3279594362d3e2d88e6191d260751d
