[INFO] fetching crate cfmms 0.6.2...
[INFO] testing cfmms-0.6.2 against nightly-2024-10-28 for randomize-layout
[INFO] extracting crate cfmms 0.6.2 into /workspace/builds/worker-2-tc1/source
[INFO] validating manifest of crates.io crate cfmms 0.6.2 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] started tweaking crates.io crate cfmms 0.6.2
[INFO] finished tweaking crates.io crate cfmms 0.6.2
[INFO] tweaked toml for crates.io crate cfmms 0.6.2 written to /workspace/builds/worker-2-tc1/source/Cargo.toml
[INFO] crate crates.io crate cfmms 0.6.2 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] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded ruint-macro v1.0.2
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[INFO] [stderr]   Downloaded portable-atomic v0.3.19
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[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 72ccc598fd8b34254caed13e263296bad2c03509d88af0492697f412289a9a4b
[INFO] running `Command { std: "docker" "start" "-a" "72ccc598fd8b34254caed13e263296bad2c03509d88af0492697f412289a9a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "72ccc598fd8b34254caed13e263296bad2c03509d88af0492697f412289a9a4b", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "72ccc598fd8b34254caed13e263296bad2c03509d88af0492697f412289a9a4b", kill_on_drop: false }`
[INFO] [stdout] 72ccc598fd8b34254caed13e263296bad2c03509d88af0492697f412289a9a4b
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-2-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@sha256:4a844ea9eb2546a2d2c7022eacef16ef2e8229c7fbb2c7d4d55a9ceca922f72d" "/opt/rustwide/cargo-home/bin/cargo" "+nightly-2024-10-28" "build" "--frozen" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] cf2ce003489bb41f435d908649975dab8b5392271c7756a8c1e575d86e2325dd
[INFO] running `Command { std: "docker" "start" "-a" "cf2ce003489bb41f435d908649975dab8b5392271c7756a8c1e575d86e2325dd", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.51
[INFO] [stderr]    Compiling quote v1.0.23
[INFO] [stderr]    Compiling unicode-ident v1.0.6
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling libc v0.2.139
[INFO] [stderr]    Compiling serde_derive v1.0.152
[INFO] [stderr]    Compiling once_cell v1.17.1
[INFO] [stderr]    Compiling serde v1.0.152
[INFO] [stderr]    Compiling subtle v2.4.1
[INFO] [stderr]    Compiling typenum v1.16.0
[INFO] [stderr]    Compiling thiserror v1.0.38
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling base64ct v1.5.3
[INFO] [stderr]    Compiling cpufeatures v0.2.5
[INFO] [stderr]    Compiling rustc-hex v2.1.0
[INFO] [stderr]    Compiling const-oid v0.9.1
[INFO] [stderr]    Compiling byte-slice-cast v1.2.2
[INFO] [stderr]    Compiling arrayvec v0.7.2
[INFO] [stderr]    Compiling byteorder v1.4.3
[INFO] [stderr]    Compiling convert_case v0.4.0
[INFO] [stderr]    Compiling aho-corasick v0.7.20
[INFO] [stderr]    Compiling regex-syntax v0.6.28
[INFO] [stderr]    Compiling base16ct v0.1.1
[INFO] [stderr]    Compiling keccak v0.1.3
[INFO] [stderr]    Compiling zeroize v1.5.7
[INFO] [stderr]    Compiling semver v1.0.16
[INFO] [stderr]    Compiling proc-macro-error-attr v1.0.4
[INFO] [stderr]    Compiling proc-macro-error v1.0.4
[INFO] [stderr]    Compiling cc v1.0.78
[INFO] [stderr]    Compiling futures-task v0.3.25
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[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 der v0.6.1
[INFO] [stderr]    Compiling io-lifetimes v1.0.4
[INFO] [stderr]    Compiling indexmap v1.9.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling serde_json v1.0.91
[INFO] [stderr]    Compiling rustix v0.36.7
[INFO] [stderr]    Compiling camino v1.1.1
[INFO] [stderr]    Compiling heck v0.4.0
[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" "cf2ce003489bb41f435d908649975dab8b5392271c7756a8c1e575d86e2325dd", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "cf2ce003489bb41f435d908649975dab8b5392271c7756a8c1e575d86e2325dd", kill_on_drop: false }`
[INFO] [stdout] cf2ce003489bb41f435d908649975dab8b5392271c7756a8c1e575d86e2325dd
