[INFO] fetching crate modio-mqttbridge 0.6.1...
[INFO] testing modio-mqttbridge-0.6.1 against nightly-2024-10-28+rustflags=-Zrandomize-layout for randomize-layout
[INFO] extracting crate modio-mqttbridge 0.6.1 into /workspace/builds/worker-3-tc2/source
[INFO] validating manifest of crates.io crate modio-mqttbridge 0.6.1 on toolchain nightly-2024-10-28
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] removed /workspace/builds/worker-3-tc2/source/.cargo/config.toml
[INFO] started tweaking crates.io crate modio-mqttbridge 0.6.1
[INFO] finished tweaking crates.io crate modio-mqttbridge 0.6.1
[INFO] tweaked toml for crates.io crate modio-mqttbridge 0.6.1 written to /workspace/builds/worker-3-tc2/source/Cargo.toml
[INFO] crate crates.io crate modio-mqttbridge 0.6.1 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" "+nightly-2024-10-28" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 1f0d374cbb3ade538692165179a201db37cf07a3bad4a486cf73f36ed921d102
[INFO] running `Command { std: "docker" "start" "-a" "1f0d374cbb3ade538692165179a201db37cf07a3bad4a486cf73f36ed921d102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "1f0d374cbb3ade538692165179a201db37cf07a3bad4a486cf73f36ed921d102", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "1f0d374cbb3ade538692165179a201db37cf07a3bad4a486cf73f36ed921d102", kill_on_drop: false }`
[INFO] [stdout] 1f0d374cbb3ade538692165179a201db37cf07a3bad4a486cf73f36ed921d102
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-tc2/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-3-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 -Zrandomize-layout" "-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 6fe5dc4d638a70a76645edd8eccd814c5b5ead7db38c440221336c53ecd03e2e
[INFO] running `Command { std: "docker" "start" "-a" "6fe5dc4d638a70a76645edd8eccd814c5b5ead7db38c440221336c53ecd03e2e", kill_on_drop: false }`
[INFO] [stderr]    Compiling syn v1.0.101
[INFO] [stderr]    Compiling libc v0.2.134
[INFO] [stderr]    Compiling once_cell v1.15.0
[INFO] [stderr]    Compiling proc-macro2 v1.0.46
[INFO] [stderr]    Compiling futures-core v0.3.24
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde v1.0.145
[INFO] [stderr]    Compiling serde_derive v1.0.145
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-6f17d22bba15001f/proc-macro2-1.0.46/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 thiserror v1.0.37
[INFO] [stderr]    Compiling lock_api v0.4.9
[INFO] [stderr]    Compiling cc v1.0.73
[INFO] [stderr]    Compiling futures-io v0.3.24
[INFO] [stderr]    Compiling scopeguard v1.1.0
[INFO] [stderr]    Compiling futures-task v0.3.24
[INFO] [stderr]    Compiling futures-channel v0.3.24
[INFO] [stderr]    Compiling futures-sink v0.3.24
[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" "6fe5dc4d638a70a76645edd8eccd814c5b5ead7db38c440221336c53ecd03e2e", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "6fe5dc4d638a70a76645edd8eccd814c5b5ead7db38c440221336c53ecd03e2e", kill_on_drop: false }`
[INFO] [stdout] 6fe5dc4d638a70a76645edd8eccd814c5b5ead7db38c440221336c53ecd03e2e
