[INFO] fetching crate rmq_monitor 0.2.6...
[INFO] building rmq_monitor-0.2.6 against master#c7f6aa2869acdbf014d094c6e427e554e160b6db for pr-146237-2
[INFO] extracting crate rmq_monitor 0.2.6 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate rmq_monitor 0.2.6
[INFO] finished tweaking crates.io crate rmq_monitor 0.2.6
[INFO] tweaked toml for crates.io crate rmq_monitor 0.2.6 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate rmq_monitor 0.2.6 on toolchain c7f6aa2869acdbf014d094c6e427e554e160b6db
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate crates.io crate rmq_monitor 0.2.6 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" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded toml_datetime v0.6.1
[INFO] [stderr]   Downloaded toml v0.7.3
[INFO] [stderr]   Downloaded serde_spanned v0.6.1
[INFO] [stderr]   Downloaded pin-project v1.0.12
[INFO] [stderr]   Downloaded addr2line v0.19.0
[INFO] [stderr]   Downloaded winnow v0.4.1
[INFO] [stderr]   Downloaded toml_edit v0.19.8
[INFO] [stderr]   Downloaded anstyle-wincon v0.2.0
[INFO] [stderr]   Downloaded regex v1.7.3
[INFO] [stderr]   Downloaded env_logger v0.10.0
[INFO] [stderr]   Downloaded uuid v1.3.1
[INFO] [stderr]   Downloaded rustc-demangle v0.1.22
[INFO] [stderr]   Downloaded openssl-sys v0.9.85
[INFO] [stderr]   Downloaded pin-project-internal v1.0.12
[INFO] [stderr]   Downloaded tracing-attributes v0.1.23
[INFO] [stderr]   Downloaded libc v0.2.141
[INFO] [stderr]   Downloaded base64 v0.21.0
[INFO] [stderr]   Downloaded spinning_top v0.2.5
[INFO] [stderr]   Downloaded curl v0.4.44
[INFO] [stderr]   Downloaded backtrace v0.3.67
[INFO] [stderr]   Downloaded async-std v1.12.0
[INFO] [stderr]   Downloaded web-sys v0.3.61
[INFO] [stderr]   Downloaded linux-raw-sys v0.3.1
[INFO] [stderr]   Downloaded anstyle-parse v0.1.1
[INFO] [stderr]   Downloaded anstream v0.2.6
[INFO] [stderr]   Downloaded anstyle v0.3.5
[INFO] [stderr]   Downloaded miniz_oxide v0.6.2
[INFO] [stderr]   Downloaded gimli v0.27.2
[INFO] [stderr]   Downloaded tracing-core v0.1.30
[INFO] [stderr]   Downloaded async-global-executor v2.3.1
[INFO] [stderr]   Downloaded concolor-override v1.0.0
[INFO] [stderr]   Downloaded concolor-query v0.3.3
[INFO] [stderr]   Downloaded os_info v3.7.0
[INFO] [stderr]   Downloaded human-panic v1.1.3
[INFO] [stderr]   Downloaded polling v2.7.0
[INFO] [stderr]   Downloaded io-lifetimes v1.0.10
[INFO] [stderr]   Downloaded object v0.30.3
[INFO] [stderr]   Downloaded wasm-bindgen-futures v0.4.34
[INFO] [stderr]   Downloaded rustix v0.37.11
[INFO] [stderr]   Downloaded cpufeatures v0.2.6
[INFO] [stderr]   Downloaded serde_json v1.0.95
[INFO] [stderr]   Downloaded syn v2.0.14
[INFO] [stderr]   Downloaded curl-sys v0.4.61+curl-8.0.1
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 4254e06e04ab51c523042509b7e9364493fc29245a1360e08694d59b7cd56e96
[INFO] running `Command { std: "docker" "start" "-a" "4254e06e04ab51c523042509b7e9364493fc29245a1360e08694d59b7cd56e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "4254e06e04ab51c523042509b7e9364493fc29245a1360e08694d59b7cd56e96", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "4254e06e04ab51c523042509b7e9364493fc29245a1360e08694d59b7cd56e96", kill_on_drop: false }`
[INFO] [stdout] 4254e06e04ab51c523042509b7e9364493fc29245a1360e08694d59b7cd56e96
[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:e90291280db7d1fac5b66fc6dad9f9662629e7365a55743daf9bdf73ebc4ea79" "/opt/rustwide/cargo-home/bin/cargo" "+c7f6aa2869acdbf014d094c6e427e554e160b6db" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] fb395dc7a2af8c625573f610f94bb3961bc0bb864d7d47608c5d875ddf8ce7fa
[INFO] running `Command { std: "docker" "start" "-a" "fb395dc7a2af8c625573f610f94bb3961bc0bb864d7d47608c5d875ddf8ce7fa", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.56
[INFO] [stderr]    Compiling quote v1.0.26
[INFO] [stderr]    Compiling unicode-ident v1.0.8
[INFO] [stderr]    Compiling libc v0.2.141
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling cc v1.0.79
[INFO] [stderr]    Compiling generic-array v0.14.7
[INFO] [stderr]    Compiling futures-core v0.3.28
[INFO] [stderr]    Compiling value-bag v1.0.0-alpha.9
[INFO] [stderr]    Compiling log v0.4.17
[INFO] [stderr]    Compiling serde_derive v1.0.160
[INFO] [stderr]    Compiling serde v1.0.160
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling futures-io v0.3.28
[INFO] [stderr]    Compiling crossbeam-utils v0.8.15
[INFO] [stderr]    Compiling slab v0.4.8
[INFO] [stderr]    Compiling io-lifetimes v1.0.10
[INFO] [stdout] error[E0635]: unknown feature `proc_macro_span_shrink`
[INFO] [stdout]   --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/proc-macro2-1.0.56/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 event-listener v2.5.3
[INFO] [stderr]    Compiling rustix v0.37.11
[INFO] [stderr]    Compiling linux-raw-sys v0.3.1
[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" "fb395dc7a2af8c625573f610f94bb3961bc0bb864d7d47608c5d875ddf8ce7fa", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "fb395dc7a2af8c625573f610f94bb3961bc0bb864d7d47608c5d875ddf8ce7fa", kill_on_drop: false }`
[INFO] [stdout] fb395dc7a2af8c625573f610f94bb3961bc0bb864d7d47608c5d875ddf8ce7fa