[INFO] fetching crate tigen 0.1.0...
[INFO] testing tigen-0.1.0 against master#caccb4d0368bd918ef6668af8e13834d07040417 for pr-146098-1
[INFO] extracting crate tigen 0.1.0 into /workspace/builds/worker-2-tc1/source
[INFO] started tweaking crates.io crate tigen 0.1.0
[INFO] finished tweaking crates.io crate tigen 0.1.0
[INFO] tweaked toml for crates.io crate tigen 0.1.0 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate tigen 0.1.0 on toolchain caccb4d0368bd918ef6668af8e13834d07040417
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate tigen 0.1.0 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" "+caccb4d0368bd918ef6668af8e13834d07040417" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded cxxbridge-flags v1.0.92
[INFO] [stderr]   Downloaded pest_generator v2.5.6
[INFO] [stderr]   Downloaded pest_derive v2.5.6
[INFO] [stderr]   Downloaded hermit-abi v0.3.1
[INFO] [stderr]   Downloaded is-terminal v0.4.4
[INFO] [stderr]   Downloaded clap_derive v4.1.8
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded cxxbridge-macro v1.0.92
[INFO] [stderr]   Downloaded cxx-build v1.0.92
[INFO] [stderr]   Downloaded clap v4.1.8
[INFO] [stderr]   Downloaded pest v2.5.6
[INFO] [stderr]   Downloaded io-lifetimes v1.0.6
[INFO] [stderr]   Downloaded globwalk v0.8.1
[INFO] [stderr]   Downloaded deunicode v0.4.3
[INFO] [stderr]   Downloaded chrono-tz-build v0.0.2
[INFO] [stderr]   Downloaded cxx v1.0.92
[INFO] [stderr]   Downloaded cpufeatures v0.2.5
[INFO] [stderr]   Downloaded sha2 v0.10.6
[INFO] [stderr]   Downloaded pest_meta v2.5.6
[INFO] [stderr]   Downloaded libc v0.2.140
[INFO] [stderr]   Downloaded slug v0.1.4
[INFO] [stderr]   Downloaded parse-zoneinfo v0.3.0
[INFO] [stderr]   Downloaded serde_json v1.0.94
[INFO] [stderr]   Downloaded scratch v1.0.5
[INFO] [stderr]   Downloaded tera v1.18.0
[INFO] [stderr]   Downloaded serde v1.0.155
[INFO] [stderr]   Downloaded uncased v0.9.7
[INFO] [stderr]   Downloaded thiserror-impl v1.0.39
[INFO] [stderr]   Downloaded thiserror v1.0.39
[INFO] [stderr]   Downloaded chrono-tz v0.6.1
[INFO] [stderr]   Downloaded clap_lex v0.3.2
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] b8e5db4395cea1c888f268ac928e803d75ec1c2801ce34b3f5a433884509bc76
[INFO] running `Command { std: "docker" "start" "-a" "b8e5db4395cea1c888f268ac928e803d75ec1c2801ce34b3f5a433884509bc76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "b8e5db4395cea1c888f268ac928e803d75ec1c2801ce34b3f5a433884509bc76", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "b8e5db4395cea1c888f268ac928e803d75ec1c2801ce34b3f5a433884509bc76", kill_on_drop: false }`
[INFO] [stdout] b8e5db4395cea1c888f268ac928e803d75ec1c2801ce34b3f5a433884509bc76
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+caccb4d0368bd918ef6668af8e13834d07040417" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 11e77ac0105be76dbd672d6c26100c3e8b6564fb4da1621841908d5ad257334b
[INFO] running `Command { std: "docker" "start" "-a" "11e77ac0105be76dbd672d6c26100c3e8b6564fb4da1621841908d5ad257334b", kill_on_drop: false }`
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling uncased v0.9.7
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]    Compiling ppv-lite86 v0.2.17
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling thiserror v1.0.39
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling io-lifetimes v1.0.6
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling bstr v1.3.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling serde v1.0.155
[INFO] [stderr]    Compiling unic-char-range v0.9.0
[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 libm v0.2.6
[INFO] [stderr]    Compiling phf_shared v0.10.0
[INFO] [stderr]    Compiling unic-common v0.9.0
[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" "11e77ac0105be76dbd672d6c26100c3e8b6564fb4da1621841908d5ad257334b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "11e77ac0105be76dbd672d6c26100c3e8b6564fb4da1621841908d5ad257334b", kill_on_drop: false }`
[INFO] [stdout] 11e77ac0105be76dbd672d6c26100c3e8b6564fb4da1621841908d5ad257334b