[INFO] fetching crate buildkit-rs 0.1.0...
[INFO] checking buildkit-rs-0.1.0 against master#4d1bd0db7f489b22c6d8aa2385937a95412c015b for pr-114682
[INFO] extracting crate buildkit-rs 0.1.0 into /workspace/builds/worker-3-tc1/source
[INFO] validating manifest of crates.io crate buildkit-rs 0.1.0 on toolchain 4d1bd0db7f489b22c6d8aa2385937a95412c015b
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate buildkit-rs 0.1.0
[INFO] finished tweaking crates.io crate buildkit-rs 0.1.0
[INFO] tweaked toml for crates.io crate buildkit-rs 0.1.0 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] crate crates.io crate buildkit-rs 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" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded prost-derive v0.11.8
[INFO] [stderr]   Downloaded prettyplease v0.1.25
[INFO] [stderr]   Downloaded axum-core v0.3.3
[INFO] [stderr]   Downloaded prost-build v0.11.8
[INFO] [stderr]   Downloaded tower-layer v0.3.2
[INFO] [stderr]   Downloaded futures-sink v0.3.27
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded tempfile v3.4.0
[INFO] [stderr]   Downloaded async-stream-impl v0.3.4
[INFO] [stderr]   Downloaded async-stream v0.3.4
[INFO] [stderr]   Downloaded tonic-build v0.8.4
[INFO] [stderr]   Downloaded futures-task v0.3.27
[INFO] [stderr]   Downloaded digest v0.10.6
[INFO] [stderr]   Downloaded prost v0.11.8
[INFO] [stderr]   Downloaded proc-macro2 v1.0.52
[INFO] [stderr]   Downloaded tonic v0.8.3
[INFO] [stderr]   Downloaded tokio v1.26.0
[INFO] [stderr]   Downloaded buildkit-rs-llb v0.1.0
[INFO] [stderr]   Downloaded hyper v0.14.25
[INFO] [stderr]   Downloaded syn v2.0.8
[INFO] [stderr]   Downloaded axum v0.6.12
[INFO] [stderr]   Downloaded serde_json v1.0.94
[INFO] [stderr]   Downloaded buildkit-rs-proto v0.1.0
[INFO] [stderr]   Downloaded futures-util v0.3.27
[INFO] [stderr]   Downloaded mio v0.8.6
[INFO] [stderr]   Downloaded tokio-util v0.7.7
[INFO] [stderr]   Downloaded buildkit-rs-util v0.1.0
[INFO] [stderr]   Downloaded buildkit-rs-reference v0.1.0
[INFO] [stderr]   Downloaded tower v0.4.13
[INFO] [stderr]   Downloaded serde v1.0.158
[INFO] [stderr]   Downloaded h2 v0.3.16
[INFO] [stderr]   Downloaded rustix v0.36.11
[INFO] [stderr]   Downloaded async-trait v0.1.67
[INFO] [stderr]   Downloaded tokio-stream v0.1.12
[INFO] [stderr]   Downloaded futures-channel v0.3.27
[INFO] [stderr]   Downloaded prost-types v0.11.8
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded futures-core v0.3.27
[INFO] [stderr]   Downloaded tokio-io-timeout v1.2.0
[INFO] [stderr]   Downloaded tokio-macros v1.8.2
[INFO] [stderr]   Downloaded matchit v0.7.0
[INFO] [stderr]   Downloaded rustversion v1.0.12
[INFO] [stderr]   Downloaded sync_wrapper v0.1.2
[INFO] [stderr]   Downloaded hyper-timeout v0.4.1
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 88bfb43ec545729bc923c125c7db523afcdb817716624a42691108ab1a91a03e
[INFO] running `Command { std: "docker" "start" "-a" "88bfb43ec545729bc923c125c7db523afcdb817716624a42691108ab1a91a03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "88bfb43ec545729bc923c125c7db523afcdb817716624a42691108ab1a91a03e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "88bfb43ec545729bc923c125c7db523afcdb817716624a42691108ab1a91a03e", kill_on_drop: false }`
[INFO] [stdout] 88bfb43ec545729bc923c125c7db523afcdb817716624a42691108ab1a91a03e
[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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+4d1bd0db7f489b22c6d8aa2385937a95412c015b" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 8a8d5b745256e57ab7f9abff84386e7d7d3e8f559a375f24c4b6d3d50850b1d6
[INFO] running `Command { std: "docker" "start" "-a" "8a8d5b745256e57ab7f9abff84386e7d7d3e8f559a375f24c4b6d3d50850b1d6", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.52
[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 log v0.4.17
[INFO] [stderr]    Compiling libc v0.2.140
[INFO] [stderr]     Checking bytes v1.4.0
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling futures-core v0.3.27
[INFO] [stderr]    Compiling anyhow v1.0.70
[INFO] [stderr]    Compiling either v1.8.1
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]    Compiling futures-task v0.3.27
[INFO] [stderr]    Compiling itertools v0.10.5
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.52/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]     Checking tracing-core v0.1.30
[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] running `Command { std: "docker" "inspect" "8a8d5b745256e57ab7f9abff84386e7d7d3e8f559a375f24c4b6d3d50850b1d6", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "8a8d5b745256e57ab7f9abff84386e7d7d3e8f559a375f24c4b6d3d50850b1d6", kill_on_drop: false }`
[INFO] [stdout] 8a8d5b745256e57ab7f9abff84386e7d7d3e8f559a375f24c4b6d3d50850b1d6
