[INFO] cloning repository https://github.com/carlosb1/mini-zkvm
[INFO] running `Command { std: "git" "-c" "credential.helper=" "-c" "credential.helper=/workspace/cargo-home/bin/git-credential-null" "clone" "--bare" "https://github.com/carlosb1/mini-zkvm" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosb1%2Fmini-zkvm", kill_on_drop: false }`
[INFO] [stderr] Cloning into bare repository '/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosb1%2Fmini-zkvm'...
[INFO] running `Command { std: "git" "rev-parse" "HEAD", kill_on_drop: false }`
[INFO] [stdout] 855c96f996c340ec2b0d88f45117d057fbd32357
[INFO] checking carlosb1/mini-zkvm against 1.95.0 for pr-155915
[INFO] running `Command { std: "git" "clone" "/workspace/cache/git-repos/https%3A%2F%2Fgithub.com%2Fcarlosb1%2Fmini-zkvm" "/workspace/builds/worker-0-tc1/source", kill_on_drop: false }`
[INFO] [stderr] Cloning into '/workspace/builds/worker-0-tc1/source'...
[INFO] [stderr] done.
[INFO] started tweaking git repo https://github.com/carlosb1/mini-zkvm
[INFO] finished tweaking git repo https://github.com/carlosb1/mini-zkvm
[INFO] tweaked toml for git repo https://github.com/carlosb1/mini-zkvm written to /workspace/builds/worker-0-tc1/source/Cargo.toml
[INFO] validating manifest of git repo https://github.com/carlosb1/mini-zkvm on toolchain 1.95.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.95.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] crate git repo https://github.com/carlosb1/mini-zkvm 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plonky2_util v1.0.0
[INFO] [stderr]   Downloaded plonky2_field v1.0.0
[INFO] [stderr]   Downloaded keccak-hash v0.8.0
[INFO] [stderr]   Downloaded plonky2_maybe_rayon v1.0.0
[INFO] [stderr]   Downloaded unroll v0.1.5
[INFO] [stderr]   Downloaded starky v1.0.2
[INFO] [stderr]   Downloaded plonky2 v1.0.2
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 54713476b27a3c3053aeb2db363eb5f6577e3c36d1e8b8e4f3acd41b3f8aaae1
[INFO] running `Command { std: "docker" "start" "-a" "54713476b27a3c3053aeb2db363eb5f6577e3c36d1e8b8e4f3acd41b3f8aaae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "54713476b27a3c3053aeb2db363eb5f6577e3c36d1e8b8e4f3acd41b3f8aaae1", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "54713476b27a3c3053aeb2db363eb5f6577e3c36d1e8b8e4f3acd41b3f8aaae1", kill_on_drop: false }`
[INFO] [stdout] 54713476b27a3c3053aeb2db363eb5f6577e3c36d1e8b8e4f3acd41b3f8aaae1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-0-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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 52afe8784b31257b9696f1dd35e9c7097ab7071ecb1adaba08eabe75582a75f3
[INFO] running `Command { std: "docker" "start" "-a" "52afe8784b31257b9696f1dd35e9c7097ab7071ecb1adaba08eabe75582a75f3", kill_on_drop: false }`
[INFO] [stderr]    Compiling libc v0.2.172
[INFO] [stderr]    Compiling crunchy v0.2.3
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]    Compiling quote v1.0.40
[INFO] [stderr]    Compiling ahash v0.8.12
[INFO] [stderr]     Checking once_cell v1.21.3
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking plonky2_util v1.0.0
[INFO] [stderr]     Checking web-time v1.1.0
[INFO] [stderr]     Checking plonky2_maybe_rayon v1.0.0
[INFO] [stderr]     Checking nom v8.0.0
[INFO] [stderr]    Compiling syn v2.0.101
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking primitive-types v0.10.1
[INFO] [stderr]    Compiling getrandom v0.2.16
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]     Checking rand_chacha v0.3.1
[INFO] [stderr]     Checking keccak-hash v0.8.0
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]     Checking const-random v0.1.18
[INFO] [stderr]    Compiling serde_derive v1.0.219
[INFO] [stderr]     Checking num-bigint v0.4.6
[INFO] [stderr]     Checking num-complex v0.4.6
[INFO] [stderr]     Checking num-rational v0.4.2
[INFO] [stderr]    Compiling unroll v0.1.5
[INFO] [stderr]     Checking num v0.4.3
[INFO] [stderr]     Checking serde v1.0.219
[INFO] [stderr]     Checking hashbrown v0.14.5
[INFO] [stderr]     Checking plonky2_field v1.0.0
[INFO] [stderr]     Checking serde_json v1.0.140
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> /opt/rustwide/cargo-home/registry/src/index.crates.io-1949cf8c6b5b557f/plonky2_field-1.0.0/src/lib.rs:6:1
[INFO] [stdout]   |
[INFO] [stdout] 6 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] For more information about this error, try `rustc --explain E0554`.
[INFO] [stdout] 
[INFO] [stderr] error: could not compile `plonky2_field` (lib) due to 1 previous error
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "52afe8784b31257b9696f1dd35e9c7097ab7071ecb1adaba08eabe75582a75f3", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "52afe8784b31257b9696f1dd35e9c7097ab7071ecb1adaba08eabe75582a75f3", kill_on_drop: false }`
[INFO] [stdout] 52afe8784b31257b9696f1dd35e9c7097ab7071ecb1adaba08eabe75582a75f3