[INFO] fetching crate zipf-fixed 0.2.1...
[INFO] checking zipf-fixed-0.2.1 against 1.95.0 for pr-155915
[INFO] extracting crate zipf-fixed 0.2.1 into /workspace/builds/worker-3-tc1/source
[INFO] started tweaking crates.io crate zipf-fixed 0.2.1
[INFO] finished tweaking crates.io crate zipf-fixed 0.2.1
[INFO] tweaked toml for crates.io crate zipf-fixed 0.2.1 written to /workspace/builds/worker-3-tc1/source/Cargo.toml
[INFO] validating manifest of crates.io crate zipf-fixed 0.2.1 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 crates.io crate zipf-fixed 0.2.1 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" "+1.95.0" "fetch" "--manifest-path" "Cargo.toml", kill_on_drop: false }`
[INFO] [stderr]     Updating crates.io index
[INFO] [stderr]     Blocking waiting for file lock on package cache
[INFO] [stderr]  Downloading crates ...
[INFO] [stderr]   Downloaded wit-bindgen-rt v0.33.0
[INFO] [stderr]   Downloaded rand_core v0.9.0
[INFO] [stderr]   Downloaded wasi v0.13.3+wasi-0.2.2
[INFO] [stderr]   Downloaded getrandom v0.3.1
[INFO] [stderr]   Downloaded libm v0.2.11
[INFO] [stderr]   Downloaded rand_distr v0.5.0
[INFO] [stderr]   Downloaded rand v0.9.0
[INFO] [stderr]   Downloaded zerocopy-derive v0.8.16
[INFO] [stderr]   Downloaded zerocopy v0.8.16
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "metadata" "--no-deps" "--format-version=1", kill_on_drop: false }`
[INFO] [stdout] dc6c4de2ac5be12628ff5be0833bb7a787ccce6323a4cd38b91900f68f56d034
[INFO] running `Command { std: "docker" "start" "-a" "dc6c4de2ac5be12628ff5be0833bb7a787ccce6323a4cd38b91900f68f56d034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "inspect" "dc6c4de2ac5be12628ff5be0833bb7a787ccce6323a4cd38b91900f68f56d034", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "dc6c4de2ac5be12628ff5be0833bb7a787ccce6323a4cd38b91900f68f56d034", kill_on_drop: false }`
[INFO] [stdout] dc6c4de2ac5be12628ff5be0833bb7a787ccce6323a4cd38b91900f68f56d034
[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:d429b63d4308055ea97f60fb1d3dfca48854a00942f1bd2ad806beaf015945ec" "/opt/rustwide/cargo-home/bin/cargo" "+1.95.0" "check" "--frozen" "--all" "--all-targets" "--message-format=json", kill_on_drop: false }`
[INFO] [stdout] 9e5876fc65c7d5c2ee7c726bf5ab46c099c4958b08f387155906f282813bb7cc
[INFO] running `Command { std: "docker" "start" "-a" "9e5876fc65c7d5c2ee7c726bf5ab46c099c4958b08f387155906f282813bb7cc", kill_on_drop: false }`
[INFO] [stderr]    Compiling proc-macro2 v1.0.93
[INFO] [stderr]    Compiling unicode-ident v1.0.16
[INFO] [stderr]    Compiling libc v0.2.169
[INFO] [stderr]    Compiling getrandom v0.3.1
[INFO] [stderr]    Compiling zerocopy v0.8.16
[INFO] [stderr]     Checking byteorder v1.5.0
[INFO] [stderr]    Compiling autocfg v1.4.0
[INFO] [stderr]    Compiling libm v0.2.11
[INFO] [stderr]    Compiling thiserror v2.0.11
[INFO] [stderr]    Compiling num-traits v0.2.19
[INFO] [stderr]    Compiling quote v1.0.38
[INFO] [stderr]    Compiling syn v2.0.98
[INFO] [stderr]     Checking rand_core v0.9.0
[INFO] [stderr]    Compiling zerocopy-derive v0.7.35
[INFO] [stderr]    Compiling thiserror-impl v2.0.11
[INFO] [stderr]     Checking zerocopy v0.7.35
[INFO] [stderr]     Checking ppv-lite86 v0.2.20
[INFO] [stderr]     Checking rand_chacha v0.9.0
[INFO] [stderr]     Checking rand v0.9.0
[INFO] [stderr]     Checking rand_distr v0.5.0
[INFO] [stderr]     Checking zipf-fixed v0.2.1 (/opt/rustwide/workdir)
[INFO] [stdout] error[E0554]: `#![feature]` may not be used on the stable release channel
[INFO] [stdout]  --> benches/zipf_bench.rs:1:1
[INFO] [stdout]   |
[INFO] [stdout] 1 | #![feature(test)]
[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 `zipf-fixed` (bench "zipf_bench") due to 1 previous error
[INFO] running `Command { std: "docker" "inspect" "9e5876fc65c7d5c2ee7c726bf5ab46c099c4958b08f387155906f282813bb7cc", kill_on_drop: false }`
[INFO] running `Command { std: "docker" "rm" "-f" "9e5876fc65c7d5c2ee7c726bf5ab46c099c4958b08f387155906f282813bb7cc", kill_on_drop: false }`
[INFO] [stdout] 9e5876fc65c7d5c2ee7c726bf5ab46c099c4958b08f387155906f282813bb7cc
