[INFO] fetching crate babycat 0.0.15...
[INFO] checking babycat-0.0.15 against try#47af3d0de9d26c7deba4cfb203b710cc3f764e91 for pr-130443
[INFO] extracting crate babycat 0.0.15 into /workspace/builds/worker-7-tc2/source
[INFO] validating manifest of crates.io crate babycat 0.0.15 on toolchain 47af3d0de9d26c7deba4cfb203b710cc3f764e91
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-7-tc2/source/rust-toolchain.toml
[INFO] started tweaking crates.io crate babycat 0.0.15
[INFO] finished tweaking crates.io crate babycat 0.0.15
[INFO] tweaked toml for crates.io crate babycat 0.0.15 written to /workspace/builds/worker-7-tc2/source/Cargo.toml
[INFO] crate crates.io crate babycat 0.0.15 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" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] d63145d7da6664e5e9bf26da962800815a9c35d8657be3b2be3d14e40c66e97d
[INFO] running `Command { std: "docker" "start" "-a" "d63145d7da6664e5e9bf26da962800815a9c35d8657be3b2be3d14e40c66e97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "d63145d7da6664e5e9bf26da962800815a9c35d8657be3b2be3d14e40c66e97d", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "d63145d7da6664e5e9bf26da962800815a9c35d8657be3b2be3d14e40c66e97d", kill_on_drop: false }`
[INFO] [stdout] d63145d7da6664e5e9bf26da962800815a9c35d8657be3b2be3d14e40c66e97d
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-7-tc2/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:ceb6ea022f8a89cebbe621bb4987e73a935bd40dfbb726f832cfff4742a5b95a" "/opt/rustwide/cargo-home/bin/cargo" "+47af3d0de9d26c7deba4cfb203b710cc3f764e91" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9771c647ef72cfc89dfbba0040ec14eb1c2141f8725d76076b05471f24e9a260
[INFO] running `Command { std: "docker" "start" "-a" "9771c647ef72cfc89dfbba0040ec14eb1c2141f8725d76076b05471f24e9a260", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.107
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]     Checking arrayvec v0.7.2
[INFO] [stderr]     Checking bytemuck v1.13.0
[INFO] [stderr]    Compiling wasm-bindgen-shared v0.2.84
[INFO] [stderr]    Compiling bumpalo v3.12.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]     Checking encoding_rs v0.8.32
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling crossbeam-utils v0.8.14
[INFO] [stderr]    Compiling memoffset v0.7.1
[INFO] [stderr]    Compiling crossbeam-epoch v0.9.13
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling wasm-bindgen v0.2.84
[INFO] [stderr]    Compiling cmake v0.1.49
[INFO] [stderr]    Compiling num-traits v0.2.15
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.51/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 rayon-core v1.10.2
[INFO] [stderr]     Checking either v1.8.1
[INFO] [stderr]     Checking hound v3.5.0
[INFO] [stderr]     Checking scoped-tls v1.0.1
[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" "9771c647ef72cfc89dfbba0040ec14eb1c2141f8725d76076b05471f24e9a260", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9771c647ef72cfc89dfbba0040ec14eb1c2141f8725d76076b05471f24e9a260", kill_on_drop: false }`
[INFO] [stdout] 9771c647ef72cfc89dfbba0040ec14eb1c2141f8725d76076b05471f24e9a260
