[INFO] fetching crate plonky2_ecdsa 0.1.0...
[INFO] documenting plonky2_ecdsa-0.1.0 against 1.75.0 for beta-1.76-rustdoc-1
[INFO] extracting crate plonky2_ecdsa 0.1.0 into /workspace/builds/worker-5-tc1/source
[INFO] validating manifest of crates.io crate plonky2_ecdsa 0.1.0 on toolchain 1.75.0
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "metadata" "--manifest-path" "Cargo.toml" "--no-deps", kill_on_drop: false }`
[INFO] started tweaking crates.io crate plonky2_ecdsa 0.1.0
[INFO] finished tweaking crates.io crate plonky2_ecdsa 0.1.0
[INFO] tweaked toml for crates.io crate plonky2_ecdsa 0.1.0 written to /workspace/builds/worker-5-tc1/source/Cargo.toml
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "generate-lockfile" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]     Updating crates.io index
[INFO] running `Command { std: CARGO_HOME="/workspace/cargo-home" RUSTUP_HOME="/workspace/rustup-home" "/workspace/cargo-home/bin/cargo" "+1.75.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded plonky2_util v0.1.1
[INFO] [stderr]   Downloaded plonky2_field v0.1.1
[INFO] [stderr]   Downloaded unroll v0.1.5
[INFO] [stderr]   Downloaded plonky2_u32 v0.1.0
[INFO] [stderr]   Downloaded plonky2 v0.1.4
[INFO] [stderr]   Downloaded plonky2_maybe_rayon v0.1.1
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] 5a2f885a6405a8a2826d0b3a0d2f3501de4e5a591ef31cb7086e4c8ce5665a1c
[INFO] running `Command { std: "docker" "start" "-a" "5a2f885a6405a8a2826d0b3a0d2f3501de4e5a591ef31cb7086e4c8ce5665a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "5a2f885a6405a8a2826d0b3a0d2f3501de4e5a591ef31cb7086e4c8ce5665a1c", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5a2f885a6405a8a2826d0b3a0d2f3501de4e5a591ef31cb7086e4c8ce5665a1c", kill_on_drop: false }`
[INFO] [stdout] 5a2f885a6405a8a2826d0b3a0d2f3501de4e5a591ef31cb7086e4c8ce5665a1c
[INFO] running `Command { std: "docker" "create" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-tc1/target:/opt/rustwide/target:rw,Z" "-v" "/var/lib/crater-agent-workspace/builds/worker-5-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=warn" "-e" "RUSTDOCFLAGS=--cap-lints=warn" "-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@sha256:2788e3201cd34a07e3172128adcd8b3090168a8e3bcc40d7c032b9dda1df7d1c" "/opt/rustwide/cargo-home/bin/cargo" "+1.75.0" "doc" "--frozen" "--no-deps" "--document-private-items" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 5ef46f9e821cdbc25c8ef06365b1154e41c076fb77203eea8543b0993f9a3c11
[INFO] running `Command { std: "docker" "start" "-a" "5ef46f9e821cdbc25c8ef06365b1154e41c076fb77203eea8543b0993f9a3c11", kill_on_drop: false }`
[INFO] [stderr]    Compiling crunchy v0.2.2
[INFO] [stderr]    Compiling num-traits v0.2.17
[INFO] [stderr]    Compiling tiny-keccak v2.0.2
[INFO] [stderr]    Compiling num-integer v0.1.45
[INFO] [stderr]    Compiling proc-macro2 v1.0.76
[INFO] [stderr]    Compiling num-bigint v0.4.4
[INFO] [stderr]    Compiling libc v0.2.151
[INFO] [stderr]     Checking getrandom v0.2.11
[INFO] [stderr]     Checking rand_core v0.6.4
[INFO] [stderr]    Compiling serde v1.0.195
[INFO] [stderr]    Compiling num-iter v0.1.43
[INFO] [stderr]     Checking rand v0.8.5
[INFO] [stderr]    Compiling num-rational v0.4.1
[INFO] [stderr]    Compiling syn v1.0.109
[INFO] [stderr]    Compiling quote v1.0.35
[INFO] [stderr]    Compiling ahash v0.8.7
[INFO] [stderr]    Compiling syn v2.0.48
[INFO] [stderr]    Compiling anyhow v1.0.79
[INFO] [stderr]     Checking hex v0.4.3
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling const-random-macro v0.1.16
[INFO] [stderr]     Checking fixed-hash v0.7.0
[INFO] [stderr]     Checking zerocopy v0.7.32
[INFO] [stderr]     Checking itertools v0.11.0
[INFO] [stderr]     Checking uint v0.9.5
[INFO] [stderr]     Checking primitive-types v0.10.1
[INFO] [stderr]     Checking const-random v0.1.17
[INFO] [stderr]     Checking plonky2_util v0.1.1
[INFO] [stderr]     Checking num-complex v0.4.4
[INFO] [stderr]     Checking plonky2_maybe_rayon v0.1.1
[INFO] [stderr]     Checking itertools v0.10.5
[INFO] [stderr]     Checking keccak-hash v0.8.0
[INFO] [stderr]     Checking num v0.4.1
[INFO] [stderr]    Compiling unroll v0.1.5
[INFO] [stderr]    Compiling serde_derive v1.0.195
[INFO] [stderr]     Checking hashbrown v0.14.3
[INFO] [stderr]     Checking serde_json v1.0.111
[INFO] [stderr]     Checking plonky2_field v0.1.1
[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-6f17d22bba15001f/plonky2_field-0.1.1/src/lib.rs:8:1
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(stdsimd)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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-6f17d22bba15001f/plonky2_field-0.1.1/src/lib.rs:9:1
[INFO] [stdout]   |
[INFO] [stdout] 9 | #![feature(specialization)]
[INFO] [stdout]   | ^^^^^^^^^^^^^^^^^^^^^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[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-6f17d22bba15001f/plonky2_field-0.1.1/src/lib.rs:8:12
[INFO] [stdout]   |
[INFO] [stdout] 8 | #![feature(stdsimd)]
[INFO] [stdout]   |            ^^^^^^^
[INFO] [stdout] 
[INFO] [stdout] 
[INFO] [stdout] error: aborting due to 3 previous errors
[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 4 previous errors
[INFO] [stderr] warning: build failed, waiting for other jobs to finish...
[INFO] running `Command { std: "docker" "inspect" "5ef46f9e821cdbc25c8ef06365b1154e41c076fb77203eea8543b0993f9a3c11", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "5ef46f9e821cdbc25c8ef06365b1154e41c076fb77203eea8543b0993f9a3c11", kill_on_drop: false }`
[INFO] [stdout] 5ef46f9e821cdbc25c8ef06365b1154e41c076fb77203eea8543b0993f9a3c11
