[INFO] fetching crate vngineer 1.0.3...
[INFO] checking vngineer-1.0.3 against master#cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c for pr-143170
[INFO] extracting crate vngineer 1.0.3 into /workspace/builds/worker-6-tc1/source
[INFO] started tweaking crates.io crate vngineer 1.0.3
[INFO] finished tweaking crates.io crate vngineer 1.0.3
[INFO] tweaked toml for crates.io crate vngineer 1.0.3 written to /workspace/builds/worker-6-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate vngineer 1.0.3 on toolchain cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate vngineer 1.0.3 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" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded vngineer-simpleton v1.0.3
[INFO] [stderr]   Downloaded intuicio-frontend-simpleton v0.13.1
[INFO] [stderr]   Downloaded intuicio-backend-vm v0.13.1
[INFO] [stderr]   Downloaded intuicio-derive v0.13.1
[INFO] [stderr]   Downloaded intuicio-nodes v0.13.1
[INFO] [stderr]   Downloaded serde-intermediate v1.5.3
[INFO] [stderr]   Downloaded intuicio-core v0.13.1
[INFO] [stderr]   Downloaded easer v0.3.0
[INFO] [stderr]   Downloaded serde_spanned v0.6.2
[INFO] [stderr]   Downloaded intuicio-data v0.13.1
[INFO] [stderr]   Downloaded clap_derive v4.3.0
[INFO] [stderr]   Downloaded rstar v0.10.0
[INFO] [stderr]   Downloaded toml_datetime v0.6.2
[INFO] [stderr]   Downloaded toml v0.7.4
[INFO] [stderr]   Downloaded lyon_path v1.0.3
[INFO] [stderr]   Downloaded intuicio-plugins v0.13.1
[INFO] [stderr]   Downloaded vek v0.15.10
[INFO] [stderr]   Downloaded toml_edit v0.19.10
[INFO] [stderr]   Downloaded lyon_tessellation v1.0.10
[INFO] [stderr]   Downloaded sdl2 v0.35.2
[INFO] [stderr]   Downloaded regex v1.8.2
[INFO] [stderr]   Downloaded vngineer-core v1.0.3
[INFO] [stderr]   Downloaded intuicio-essentials v0.13.1
[INFO] [stderr]   Downloaded serde-intermediate-derive v1.5.3
[INFO] [stderr]   Downloaded tetra v0.8.0
[INFO] [stderr]   Downloaded sdl2-sys v0.35.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 3bf3fb2738afcf7d5bdb568914d3b6b05633a02dd71fd048b3fe3d316b989cef
[INFO] running `Command { std: "docker" "start" "-a" "3bf3fb2738afcf7d5bdb568914d3b6b05633a02dd71fd048b3fe3d316b989cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "3bf3fb2738afcf7d5bdb568914d3b6b05633a02dd71fd048b3fe3d316b989cef", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "3bf3fb2738afcf7d5bdb568914d3b6b05633a02dd71fd048b3fe3d316b989cef", kill_on_drop: false }`
[INFO] [stdout] 3bf3fb2738afcf7d5bdb568914d3b6b05633a02dd71fd048b3fe3d316b989cef
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-6-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@sha256:90999bfc7ae267e83380e433d8e61a7c072ca6729e92edbae886d3423b3a6f4c" "/opt/rustwide/cargo-home/bin/cargo" "+cf38b8e663f15db10ce49d7bbce02c99fc3dbc0c" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 98ceec76703051f8501542129e9564567802f73a15919442d26b52f217037c6f
[INFO] running `Command { std: "docker" "start" "-a" "98ceec76703051f8501542129e9564567802f73a15919442d26b52f217037c6f", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.58
[INFO] [stderr]    Compiling quote v1.0.27
[INFO] [stderr]    Compiling libc v0.2.144
[INFO] [stderr]    Compiling serde v1.0.163
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stderr]    Compiling thiserror v1.0.40
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]     Checking byteorder v1.4.3
[INFO] [stderr]    Compiling indexmap v1.9.3
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]    Compiling ucd-trie v0.1.5
[INFO] [stderr]     Checking smallvec v1.10.0
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.58/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 once_cell v1.17.1
[INFO] [stderr]     Checking hashbrown v0.12.3
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling io-lifetimes v1.0.11
[INFO] [stderr]    Compiling alsa-sys v0.3.1
[INFO] [stderr]    Compiling heapless v0.7.16
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling cfg-if v1.0.0
[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" "98ceec76703051f8501542129e9564567802f73a15919442d26b52f217037c6f", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "98ceec76703051f8501542129e9564567802f73a15919442d26b52f217037c6f", kill_on_drop: false }`
[INFO] [stdout] 98ceec76703051f8501542129e9564567802f73a15919442d26b52f217037c6f