[INFO] cloning repository https://github.com/Yuguo-Wang/rust-demo7
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/Yuguo-Wang/rust-demo7" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuguo-Wang%2Frust-demo7", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuguo-Wang%2Frust-demo7'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 8510772d0672ea04e19fd85f4d4c1c5fd6b87ad5
[INFO] checking Yuguo-Wang/rust-demo7/8510772d0672ea04e19fd85f4d4c1c5fd6b87ad5 against master#f609b7e0586f81fefb3523e3e17adf779ac416be for pr-129466-2
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2FYuguo-Wang%2Frust-demo7" "/workspace/builds/worker-4-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-4-tc1/source'...
[INFO] [stderr] done.
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Updating files: 100% (2153/2153), done.
[INFO] validating manifest of git repo https://github.com/Yuguo-Wang/rust-demo7 on toolchain f609b7e0586f81fefb3523e3e17adf779ac416be
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking git repo https://github.com/Yuguo-Wang/rust-demo7
[INFO] finished tweaking git repo https://github.com/Yuguo-Wang/rust-demo7
[INFO] tweaked toml for git repo https://github.com/Yuguo-Wang/rust-demo7 written to /workspace/builds/worker-4-tc1/source/Cargo.toml
[INFO] crate git repo https://github.com/Yuguo-Wang/rust-demo7 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" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded serde v1.0.153
[INFO] [stderr]   Downloaded serde_derive v1.0.153
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 55ce98ff46b25d0aeb0f14fc67bf56fa30994ce92c4f21c1936f037e5d9d993c
[INFO] running `Command { std: "docker" "start" "-a" "55ce98ff46b25d0aeb0f14fc67bf56fa30994ce92c4f21c1936f037e5d9d993c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "55ce98ff46b25d0aeb0f14fc67bf56fa30994ce92c4f21c1936f037e5d9d993c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "55ce98ff46b25d0aeb0f14fc67bf56fa30994ce92c4f21c1936f037e5d9d993c", kill_on_drop: false }`
[INFO] [stdout] 55ce98ff46b25d0aeb0f14fc67bf56fa30994ce92c4f21c1936f037e5d9d993c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-4-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@sha256:6252d7ea7fb8caaf7af6d800c5fb250a9cd862b9a7f9508afb3c54fa7fe1102e" "/opt/rustwide/cargo-home/bin/cargo" "+f609b7e0586f81fefb3523e3e17adf779ac416be" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] dd0eb612a10cefecb1ca854c7fa2e0d4815d4b5fcb68a353698508b87f1f301a
[INFO] running `Command { std: "docker" "start" "-a" "dd0eb612a10cefecb1ca854c7fa2e0d4815d4b5fcb68a353698508b87f1f301a", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]     Checking once_cell v1.17.1
[INFO] [stderr]     Checking futures-core v0.3.26
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.153
[INFO] [stderr]     Checking parking_lot_core v0.9.7
[INFO] [stderr]    Compiling tokio v1.26.0
[INFO] [stderr]    Compiling serde v1.0.153
[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 typenum v1.16.0
[INFO] [stderr]     Checking tracing-core v0.1.30
[INFO] [stderr]     Checking parking_lot v0.12.1
[INFO] [stderr]     Checking mio v0.8.6
[INFO] [stderr]     Checking signal-hook-registry v1.4.1
[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]     Checking socket2 v0.4.9
[INFO] [stderr]    Compiling generic-array v0.14.6
[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" "dd0eb612a10cefecb1ca854c7fa2e0d4815d4b5fcb68a353698508b87f1f301a", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dd0eb612a10cefecb1ca854c7fa2e0d4815d4b5fcb68a353698508b87f1f301a", kill_on_drop: false }`
[INFO] [stdout] dd0eb612a10cefecb1ca854c7fa2e0d4815d4b5fcb68a353698508b87f1f301a